Senior Python Developer

🏢 Summary: Software Engineer role focused on building and enhancing front office systems for commodities trade risk assessment, including market and trade data processing components. The position involves developing high-performance data pipelines, time series frameworks, and integrations used daily by traders in a fast-paced financial environment. The role emphasizes new development in Python and close collaboration with a highly technical team. 🗂️ Requirements: 2/3+ years of software engineering experience, Proficiency in Python, Strong knowledge of data structures and algorithms, Experience with SQL databases, Experience with NoSQL databases, Experience building ETL data pipelines, Experience with market data or trade data processing systems, Degree in Computer Science, Mathematics, Physics or related field 📃 Skills: Python, SQL, NoSQL, ETL, Kafka, Redis, AWS, Azure 🏢 Description: The StratsLab Difference: Why you should read this We were founded in 2015 by alumni of the Warsaw University MIM Faculty, who spent years sharpening their skills at top-tier investment banks and hedge funds in London. We brought that exclusive, high-impact culture back to Warsaw. Developer-Driven : You will be surrounded by top-notch Developers who genuinely love to code. We prioritize writing new code over maintaining legacy systems. Unique Domain : You'll gain unique skills working directly in the highly specialized area of commodities trade risk assessment. This isn't generic IT - it's highly challenging and intellectually rewarding. Real Impact : You will have independent, responsible tasks and will have a chance to implement your ideas, seeing the immediate effects of your work on complex financial systems. Our Roots & Your Fast Track: We are proud of our origins. Since many of us are alumni of UW (JSIM, CS, Math, Physics) ,  Matex at Staszic and finalists of the Informatics or Mathematics Olympiad , we know what it takes to get there. If you share this background, just apply and we guarantee you an intro call. We speak the same language, so let’s skip the formalities. While we value our roots, we value exceptional engineering even more. If you are a high-calibre developer from a different path, your skills are the only credential that matters. Apply and let your code do the talking. Your Role: In this role, you will be responsible for designing, developing and testing essential front office components. You will work on market data ingestion, time series frameworks, trade ingestion and high frequency trades. Your work also involves building ETL data pipelines and integrations with third-party systems. You will add features to the framework for easy developing and deploying of applications while providing ongoing support and enhancement of the platform. What makes you the right fit? You should enjoy building the tools and interfaces that traders use daily. You should enjoy seeing users use your work in a different way than you anticipated and adjust accordingly. You should enjoy working in Python. You have 2/3+ years of software engineering experience (we're looking for candidates of different seniority to join our team). You have a strong grasp of data structures, algorithms and exposure to SQL and NoSQL database programming. You enjoy learning and trying new things. Familiarity with streaming technologies like Kafka and Redis is a plus. Familiarity with cloud computing such as AWS or Azure helps you stand out. Exposure to multiple programming languages and paradigms is an advantage. Computer Science, Maths, Physics or other relevant degree. Financial knowledge and/or experience in financial markets will be an advantage. The Offer: We believe that high-calibre work deserves exceptional support: Compensation: Base salary plus a bonus twice a year. Your role and salary are based on your skills and how fast you learn, not just your old job title. Professional Growth: You will work closely with experts and gain exposure to top financial institutions as a natural part of your day. Being in this team means you share knowledge with exceptional programmers and grow your expertise through your daily interactions. Office: Powiśle, Warsaw. Flexible working hours. International business trips for volunteers. Collaborative Work Model We thrive on interpersonal relations and the ability to solve the most complex problems together, that’s why we’re looking for individuals who want to come to the office most days to solve problems together with the team by a whiteboard. The Next Step: Our Selection Process If all goes well, we are going to spend a lot of time together. Our process aims to ensure both you and us know what we are getting into: Informal Introduction: You will start with a casual chat with our Founders to see if we are a good fit for each other. Technical Assessment: You will do a technical task so we can see how you code and solve problems. Team Engagement: You will meet the team and talk about the role directly with the people you would be working with.

🏢 Summary: Machine Learning Engineer role focused on deploying and maintaining production-ready ML pipelines and computer vision solutions on retail edge devices. The position involves building scalable cloud and edge architectures, automating ML workflows, and ensuring reliable deployment across thousands of devices using Azure and Python-based technologies. The role also includes collaboration with Data Scientists and contributing to AI-powered projects through monitoring, optimization, and technical consulting. 🗂️ Requirements: 5+ years of software engineering experience, Bachelor’s or Master’s degree in Computer Science or related field, Expert-level Python skills, Advanced Airflow experience, Advanced Docker experience, Advanced GitHub Actions experience, Strong Azure cloud expertise, Ability to work independently, English proficiency at B2/C1 level, Availability for hybrid work model 📃 Skills: Python, Azure, Docker, Airflow, GitHub, DeepStream, Streamlit, PostgreSQL, Terraform, ETL, CCTV 🏢 Description: VirtusLab is a leading European software consulting and engineering company. Our mission is to craft clean code and practical solutions with precision and purpose. We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering professionals to make a substantial impact in the software industry. About the role Driving business innovation through production-ready machine learning pipelines. Collaboration focuses on deploying and maintaining ML workflows while leveraging Azure for cloud computing and on-prem clusters for ETLs. The scope of services involves close cooperation with Data Scientists, active contribution to AI-powered projects, and consulting on technical solutions and translating complex details for business stakeholders. Business delivery is achieved through the independent deployment and monitoring of models in production, combined with building and maintaining analytical dashboards for continuous insights. Furthermore, the engagement encompasses driving technical excellence across the project environment by fostering knowledge sharing and delivering high-level technical sessions. Python Expert Cloud (prefered Azure) Advanced Docker Advanced Airflow Advanced GitHub Actions Advanced English Advanced View available projects Project Computer Vision / Integration Project Scope The scope of services for the Machine Learning Engineer involves bridging the gap between data science and operational deployment at scale, focusing on the integration and automation of Machine Learning models directly onto retail edge devices, such as self-checkout tills. The core delivery includes: Development and maintenance of components for processing CCTV data, leveraging technologies like NVidia Deepstream. Streamlining the data onboarding process to enable the creation of specialized solutions by Data Science units. Designing and implementing scalable, high-quality code and architectures within cloud and edge environments. Optimization of data storage and processing in the cloud, selecting the most effective tools and architectures to meet business requirements. Enhancing the monitoring, reliability, and stability of deployed solutions, including the delivery of automated testing suites and simulation environments for edge devices. Fostering technical alignment with cross-functional units to ensure the seamless integration of ML models with retail tills, driving customer experience enhancement through innovative technologies. Tech Stack Python, Docker, DeepStream, Airflow, Azure, GitHub Actions, Streamlit, PostgreSQL, Terraform Project Challenges – Deploying and monitoring deployment to 10,000 devices – Ensuring similar behaviour on all devices at the same time – Dealing with internet interruptions during deployment – Dealing with the raw scale of data from thousands of cameras Project environment 3x Python Engineers, without an SDM, operating mostly in the larger Computer Vision team that, apart from engineers, consists of three Data Scientists, a Data Science Manager and Product Manager. The Engineering Team is distributed in Poland while the broader team is distributed in Poland and the United Kingdom. What we expect in general: Minimum 5 years of general software engineering experience with master’s or bachelor’s degree in Computer Science or related field Expert-level Python programming skills and extensive hands-on experience with Airflow, Docker, and GitHub Actions Strong Azure cloud expertise combined with ownership mindset and proven ability to work independently Good command of English (B2/C1). Availability to work in a hybrid model from time to time. Seems like lots of expectations, huh? Don’t worry! You don’t have to meet all the requirements. What matters most is your passion and willingness to develop. Apply and find out! A few perks of being with us Building tech community Flexible hybrid work model Home office reimbursement Language lessons MyBenefit points Private healthcare Training Package Virtusity / in-house training Access to the above perks is optional and completely voluntary for B2B contractors Apply now

🏢 Summary: Software Engineer role in an agile team developing and enhancing the SimCorp Data Connectivity product using C# and .NET. The position involves implementing, testing, and supporting cloud-native solutions in Microsoft Azure with Angular-based web UI. The role focuses on continuous improvement of architecture, performance, and DevOps practices in a collaborative international environment. 🗂️ Requirements: Minimum 2 years of experience with C# and .NET development, Experience with infrastructure as code, Experience with ARM, Bicep, PowerShell or Azure Pipelines, Degree in Software Engineering, Computer Science, Data Science or related field, Fluency in English 📃 Skills: C#, .NET, Azure, Angular, ARM, Bicep, PowerShell, AzurePipelines, CI/CD, Agile 🏢 Description: WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT TO US You will be working in an agile team of about 5-7 people. The team works on our Simcorp Data Connectivity product. In your daily work you will – together with your team - understand and challenge customer requirements, discuss solutions, implement and test the chosen solution, and support it. We use a variety of tools, but they are all centered around C# and .Net. You will mainly be working with cloud native services in Microsoft Azure and Angular Web UI. In addition to implementing the features, it is essential for us to continuously improve on all levels: company, division, product area, team, and individual. Your daily work life will thus also include topics such as “how can we reduce our build time”, “how can we rearchitect this component to perform significantly faster”, and “how can we work together in a more fun and effective way”. You will be working in Warsaw. You will collaborate with colleagues from Ukraine, Poland, Denmark, Austria, Germany, etc. English is the corporate language and is used in all communication. WHAT WE VALUE 2+ years of experience in software engineering using C# and .NET Development Experience with infrastructure as code preferably using Arm, Bicep, PowerShell and Azure pipelines You have a degree in Software Engineering, Computer Science, Data Science or similar Good communication skills and fluency in English (speaking and writing) Angular is a plus Understanding of Lean Agile practices, values and principles are a plus Knowledge of Microsoft Azure in production environments, such as experience with Azure cost pricing, Availability SLA’s and security of different solution approaches would be a plus As a person, you value Taking ownership and achieving results Trying new approaches to both new and old challenges Working with others to leverage the strengths of everyone in the team Learning new skills and improving upon existing ones Continually looking for ways to improve what we do and how we do it BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. NEXT STEPS Please send us your application in English via our career site as soon as possible, we process incoming applications continually . Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photos, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on a positive growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks. We are focused on continually improving our talent acquisition process and making everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated.

🏢 Summary: Automation Tester role focused on designing and executing automated tests for complex financial systems within configuration and upgrade projects. The position involves analyzing business requirements, performing UI and API test automation, and supporting incident management in an Agile environment. The role is embedded in cross-located teams delivering high-quality testing services. 🗂️ Requirements: 3+ years of experience in software testing and test automation, Practical programming experience in C#, Experience with scripting (Bash, Python or PowerShell), Strong knowledge of UI and Web API test automation frameworks, Experience with API testing tools (Postman or Insomnia), Experience with Git workflows (branching, pull requests, code reviews), Understanding of BDD principles and writing test scenarios (Gherkin, SpecFlow or Reqnroll), Hands-on experience with Regex, Knowledge of Software Testing Life Cycle (STLC), Experience working in Agile environment with Agile tools, Educational background in Computer Science, STEM, Finance or related field, Fluency in English (B2+ or C1) 📃 Skills: C#, Bash, Python, PowerShell, Postman, Insomnia, Git, Gherkin, SpecFlow, Reqnroll, Regex, STLC, Agile, UI, API 🏢 Description: WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values – caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT TO US At SimCorp, we help some of the world’s largest financial institutions simplify their investments, accounting, and operational processes. We’re looking for an Automation Tester to join our Warsaw team in the Testing Services Delivery Unit – cross-located teams that deliver high-quality testing services embedded in Configuration and Upgrade projects within Global Managed Services. In this role, you will investigate complex business requirements, design and execute test cases, and support incident management and reporting of test results. WHAT WE VALUE 3+ years of experience in software testing and test automation Practical programming experience, primarily in C# or strong tech‑savviness Scripting experience (e.g., Bash, Python, and/or PowerShell) Strong knowledge of UI and Web API test automation frameworks Experience with API testing tools such as Postman and Insomnia Experience with version control workflows, including branching strategies, pull requests, and code reviews (Git) Understanding BDD principles and ability to write and maintain test scenarios (Gherkin, SpecFlow/Reqnroll) Hands-on experience using regular expressions (Regex) for test data validation, pattern matching, and log analysis Practical knowledge of the Software Testing Life Cycle (STLC) Strong analytical judgment and translating complexity into clear direction Openness for collaboration and knowledge‑sharing Focusing on continuous improvement with a growth‑oriented, forward‑looking mindset Adapting easily to change and operates with flexibility in dynamic environments Communicating with clarity, authority, and strong consulting presence Experience working in an Agile environment with Agile project management tools. Domain knowledge in investment banking and accounting highly welcome Educational background in Computer Science, STEM, Finance, or a related field Fluency in English (min. B2+ or C1) Nice to have Azure DevOps. Understanding the application development lifecycle. Experience creating and maintaining test plans. RECRUITMENT PROCESS Our hiring process can include several stages. Initial conversation with Talent Acquisition Partner.  Technical interview.  Feedback and final offer.  Onboarding: during your first month, you’ll participate in the SimCorp Product Learning Academy, concluded with an exam. BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. Visit our career pages to learn more about working at SimCorp: www.simcorp.com/career NEXT STEPS Please send us your application in English via our career site. Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photo, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. For any questions you are welcome to contact Małgorzata Kobierska, Senior Talent Acquisition Partner, at " malgorzata.kobierska@simcorp.com " . If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on an exciting growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks. We are eager to continually improve our talent acquisition process and make everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated. WHO WE ARE For over 50 years, we have worked closely with investment and asset managers to become the world’s leading provider of integrated investment management solutions. We are 4,000+ colleagues with a broad range of nationalities, education, professional experiences, ages, and backgrounds in general. SimCorp is an independent subsidiary of the Deutsche Börse Group. Following the recent merger with Axioma, we leverage the combined strength of our brands to provide an industry-leading, full, front-to-back offering for our clients. SimCorp is an equal opportunity employer. We are committed to building a culture where diverse perspectives and expertise are integrated in our everyday work. We believe in the continual growth and development of our employees, so that we can provide best-in-class solutions to our clients.

🏢 Summary: Mid-level Backend Engineer role focused on building a cutting-edge FinTech platform for interbank intraday lending using Scala in an agile startup environment. The position involves delivering scalable, testable solutions through functional programming and TDD practices. The engineer will collaborate closely with the product team to incrementally develop and enhance the platform. 🗂️ Requirements: 3+ years of software development experience, Proficiency in Scala or similar language (e.g., Haskell), Understanding of reactive programming paradigms, Understanding of functional programming paradigms, Experience working in Agile environment, Experience working within Scrum framework, Ability to write testable, deployable and scalable code 📃 Skills: Scala, Haskell, Reactive, Functional, TDD, Scrum, Agile, Blockchain, DLT 🏢 Description: Are you a passionate backend engineer ready to take your skills to the next level? Join our Product Team as we build a cutting-edge FinTech platform for interbank intraday lending. This is your chance to be part of a dynamic, VC-backed startup and play a key role in shaping both our product and our company. Why Join Us? Fast-Paced Startup : Collaborate with a smart, agile team led by our hands-on technical co-founder. Your contributions will have a direct impact on our growth. Remote-First with a Weekly Anchor: Work remotely four days a week, and meet up with the team once a week at our Wrocław office to sync, collaborate in person, and keep the momentum going. Ownership : Receive equity options and be a true stakeholder in our success. Flexibility : Take advantage of a holiday schedule that isn’t tied to any specific country. Inspiring Team Off-Sites : Twice a year, we bring the entire team together for week-long off-sites in exciting locations (think Budapest, Bordeaux, Malta, and beyond). Modern AI-Augmented Workflow: We use Claude Code daily and invest in tooling that lets our engineers focus on the interesting problems. What You’ll Do Collaborate with our team to deliver incremental value through agile, systematic development cycles. Write clean, reusable, and efficient functional code using Scala , following TDD and engaging in pair-programming as needed. Ensure our solutions are testable, deployable , and scalable . Who You Are We’re looking for a proactive, mid-level backend engineer with: 3+ years of software development experience . Proficiency in Scala , or similar languages (e.g., Haskell ). A solid understanding of reactive and/or functional programming paradigms . Knowledge of Agile principles and experience working within the Scrum framework . (Nice-to-have) Experience using AI coding assistants effectively in a professional setting — knowing how to prompt well, scope tasks, and review AI-generated code critically. (Nice-to-have) An interest in or experience with blockchain/DLT technologies . (Bonus) A degree in Computer Science or a related field. About Us We are a forward-thinking FinTech startup backed by leading venture capital. Our mission is to revolutionize interbank lending through innovative technology. Agile principles guide our work, and we are committed to fostering a supportive, growth-oriented culture. If you’re excited about solving complex challenges, making an impact, and working in an environment that values both technical excellence and collaboration, we want to hear from you! Ready to Join? Apply now and start shaping the future of finance with us.

🏢 Summary: The offer is for a QA/Test Engineer role focused on functional and non-functional testing within Agile projects. The position involves analyzing requirements, designing test cases, executing tests, and supporting defect analysis while contributing to QA processes and test strategy. It is suited for candidates with hands-on testing experience who want to further develop their skills in a collaborative, international environment. 🗂️ Requirements: Master’s degree in Computer Science, Minimum 2 years of experience in software testing, Hands-on experience with testing techniques, Experience in customer requirements analysis, Experience in test case design, Experience in reporting complex defects, Familiarity with Agile methodology, Fluency in English, Fluency in Polish 📃 Skills: Testing, QA, SDLC, Agile, TestDesign, BugReporting, RequirementsAnalysis, FunctionalTesting, NonFunctionalTesting, English, Polish 🏢 Description: About us At QualityMinds, we specialize in software quality assurance, development, and DevOps services. With an experienced team, we deliver innovative solutions, working with both large and medium-sized companies. Our portfolio includes test automation, performance testing, development services, and DevOps support. We are actively involved in the tech community, organizing lectures and training sessions.  The Polish branch consists of a team of around 60 specialists working on domestic and international projects.  Our greatest strength and value are our people. For us, work is about partnership and trust. We believe that a supportive environment and a sense of ownership lead to better outcomes. About the role We are seeking a candidate with an understanding of testing methodologies, Quality Assurance practices, and Software Development Life Cycles (SDLC), strong analytical and problem-solving skills, and a critical yet solution-oriented mindset, who has gained experience in a business environment working on projects alongside more experienced testers, benefiting from their guidance and exposure to established testing practices. The ideal candidate communicates openly, is not afraid to share their opinions, collaborates effectively with multiple development teams, and is committed to continuously developing their skills. Tasks Analysis of systems functional and non-functional requirements Contribution to Test Strategy and Quality Assurance processes Functional and non-functional test scenarios and test cases design Performing functional tests Reporting and supporting root-cause analysis for defects Writing test documentation (test plans, test reports) Requirements Master’s degree in Computer Science At least 2 years of experience in testing Hands on experience in applying testing techniques Experience in analysis of customer needs Proven experience with test case design Experience in reporting complex bugs/issues Familiarity with Agile delivery and Agile mindset concepts Fluency in spoken and written English and Polish We offer Fully remotely or in-house work at our office in Warsaw Contract of employment or B2B contract Flexible working schedule Medical care (LuxMed or PZU Zdrowie) MyBenefit or Pyszne.pl Self-development opportunities Internal & external trainings Certification opportunities English/German conversations with native speakers International teams and projects Choice of working environment (Mac/Linux/Windows) We are excited to meet passionate technology enthusiasts ready to drive meaningful change. If you see yourself thriving in this role, we encourage you to apply through our application form and become part of our team at QualityMinds !

🏢 Summary: Senior Software Tester role within a Global Validation and Test unit, delivering high-quality testing services for configuration and upgrade projects in the financial sector. The position involves designing and executing test cases, creating automation scripts, and collaborating directly with clients to validate complex investment and accounting solutions. The role combines manual and automated testing in an Agile environment. 🗂️ Requirements: 3+ years of software testing experience, Practical coding experience in C#, Python, JavaScript or PowerShell, Experience in test automation scripts and scenarios creation, Experience with version control systems (Git), Knowledge of investment banking and accounting systems, Experience working in Agile methodology, English proficiency at minimum B2 level 📃 Skills: C#, Python, JavaScript, PowerShell, Git, Azure, DevOps, Agile, TestAutomation, InvestmentBanking, Accounting 🏢 Description: WHAT MAKES US, US Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and wants to grow, learn and pursue outcomes with our prestigious financial clients, say Hello to SimCorp! At its foundation, SimCorp is guided by our values — caring, customer success-driven, collaborative, curious, and courageous. Our people-centered organization focuses on skills development, relationship building, and client success. We take pride in cultivating an environment where all team members can grow, feel heard, valued, and empowered. If you like what we’re saying, keep reading! WHY THIS ROLE IS IMPORTANT FOR US At SimCorp, we support some of the biggest financial institutions in the world to manage their investments, accounting, and operations more effectively by simplifying them. We are looking for Senior Software Tester to join our Warsaw team in Global Validation and Test (V&T) Delivery Unit consisting of cross-located teams delivering high-quality testing services embedded into Configuration and Upgrade projects. V&T is a client-facing part of the SimCorp Global Managed Services organization. WHAT YOU WILL BE RESPONSIBLE FOR Investigating complex business requirements Designing and carrying out test cases Conducting meetings with customers Reporting on test results Assisting with incident management reports WHAT WE VALUE 3+ years of experience in software testing Practical coding experience (C#, Python, JavaScript, PowerShell as second option) Experience in Test Automation scripts and scenarios creation Experience in usage of versioning control (Git) Financial knowledge in investment banking and accounting Practical experience working within Agile methodology English: B2 level proficiency We also value that you have experience with some of the following and are able to – and interested in – learning the rest: Azure DevOps Pipelines Applications Development Test Plans creation BENEFITS Flexible working hours and hybrid model - 2 days in the office, 3 days remote Modern office (next to Wilanowska metro station) with quiet zones and ergonomic workstations Base salary with annual bonus structure Holiday allowance upon a 2-week vacation Occasional remote work across Poland and international options available (up to 24 days domestic, 20 days international per year - subject to internal policy) Employer-paid Medicover Platinum healthcare package (employee-paid family upgrade available) Multisport card with 75% employer contribution Unum group life insurance (employee-paid upgrade available) Medicover travel insurance for private trips and global business travel insurance Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year) Copyrights program for certain roles Possibility to develop your career in an international environment Professional training and courses provided by SimCorp Polish language classes for foreign employees; German and English classes based on business needs Integration events, volunteering initiatives and employee-led clubs Compensation ranges are being disclosed at the initial stage of candidate engagement. Visit our career pages to learn more about working at SimCorp: www.simcorp.com/career NEXT STEPS Please send us your application in English via our career site. Please note that only applications sent through our system will be processed. At SimCorp, we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photo, age, or any non-professional information from your application. Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. If you are interested in being a part of SimCorp but are not sure this role is suitable, submit your CV anyway. SimCorp is on an exciting growth journey, and our Talent Acquisition Team is ready to assist you discover the right role for you. The approximate time to consider your CV is three weeks. We are eager to continually improve our talent acquisition process and make everyone’s experience positive and valuable. Therefore, during the process we will ask you to provide your feedback, which is highly appreciated. WHO WE ARE For over 50 years, we have worked closely with investment and asset managers to become the world’s leading provider of integrated investment management solutions. We are 4,000+ colleagues with a broad range of nationalities, education, professional experiences, ages, and backgrounds in general. SimCorp is an independent subsidiary of the Deutsche Börse Group. Following the recent merger with Axioma, we leverage the combined strength of our brands to provide an industry-leading, full, front-to-back offering for our clients. SimCorp is an equal opportunity employer. We are committed to building a culture where diverse perspectives and expertise are integrated in our everyday work. We believe in the continual growth and development of our employees, so that we can provide best-in-class solutions to our clients.

🏢 Summary: Lead the Platform Engineering team responsible for cloud infrastructure, automation, Internal Developer Platforms, and developer experience initiatives. The role combines hands-on technical leadership with team management, focusing on scalable, secure, and efficient platform solutions using cloud-native and DevOps technologies. Candidates should have strong experience in infrastructure architecture, CI/CD, Kubernetes, IaC, and leading engineering teams. 🗂️ Requirements: Several years of experience as Senior Developer, Tech Lead, Architect, or Platform Engineer, Several years of formal team management experience, Hands-on experience with cloud infrastructure, Strong Java development background, Knowledge of IaC, containerization, Kubernetes, and CI/CD, Experience designing and maintaining Internal Developer Platforms, Experience with artifact repository systems, Knowledge of DORA metrics, Experience implementing self-service tools and automation, Experience with GitLab CI/CD and infrastructure integration, Knowledge of scalability, security, performance, and cost optimization, Experience working with distributed remote teams, Experience designing complex infrastructure architectures, Programming or scripting experience for automation, Knowledge of monitoring, logging, and observability systems 📃 Skills: AWS, GCP, Azure, Java, Terraform, Helm, Ansible, Kubernetes, GitLab, GitOps, Jenkins, Artifactory, Nexus, ECR, Python, Go, Bash, Shell, Prometheus, Grafana, ELK, OpenSearch, Flux, ArgoCD, Kyverno, RBAC, FinOps, CI/CD, IaC 🏢 Description: XTB is a global company from the financial industry, focusing on online trading of financial instruments. We are the largest FinTech in Poland and a leader in Central and Eastern Europe, and the range of our operations covers several countries, including Asia and South America. At XTB, we focus on the development of our employees, giving them opportunities to gain knowledge and skills in various fields, as well as offering a number of training and development programs. If you are looking for challenges and want to gain valuable experience in an international business environment, XTB is the right place for you. We are a certified Great Place to Work company. Setting our standards high, we can always count on each other. Within our department, we also organize workshops and guilds – meetings dedicated to specific areas or technologies – to continuously develop our skills and build a strong engineering community. Who We Are Looking For We are seeking a Team Leader to lead our Platform Engineering team – a person combining strong technical expertise in infrastructure, automation, and developer experience (DevEx) with team management experience and the ability to build an internal engineering community. About the Team We create tools, services, and solutions that enable product teams to deliver business value faster, safer, and more efficiently. Our Platform Engineering team forms the heart of the organization’s technical infrastructure, supporting both cloud infrastructure and developer experience. We work on Internal Developer Platforms (IDP), deployment automation, DORA metrics, self-service tooling, and integration with the DevOps ecosystem. Our solutions prioritize scalability, security, cost-efficiency, and user experience. Responsibilities Ensuring development tasks are completed according to established technical standards. Supporting the Product Manager in coordinating team activities in the area of technological solutions. Collaborating with other teams to design optimal solution architectures. Ensuring high team efficiency by identifying and mitigating obstacles in the development process. Monitoring ongoing work and assisting in resolving technical issues. Supporting team growth through training, mentoring, and regular 1:1 meetings. Required Experience and Qualifications Several years of experience in the role of Senior Developer, Tech Lead, Architect, or Platform Engineer. Several years of experience in formal team management as a manager. Hands-on experience working with cloud infrastructure (AWS, GCP, Azure, or other). Solid background and hands-on professional experience in Java development. Deep knowledge of: IaC (Infrastructure as Code), containerization, orchestration (Kubernetes), and CI/CD. Experience designing and maintaining Internal Developer Platforms (IDP) or similar platform tools. Experience with artifact repository systems (Artifactory, Nexus, or similar). Practical knowledge of DORA metrics (Deployment Frequency, Lead Time, Change Failure Rate, Time to Restore). Experience implementing self-service tools and automation for product teams. Experience with GitLab, including GitLab Runners, GitLab CI/CD, and infrastructure integration. Knowledge of scalability, performance, security, and cost management in technical platforms. Experience working with distributed remote teams. What We Expect in Terms of Attitude Proactive approach, ambition, and independence in tackling challenges of complex infrastructure projects. Taking ownership of your area, decisions, and team. Courage in expressing your vision and opinions, combined with effectiveness and follow-through in executing ideas. Business-oriented approach and the ability to select technologies that align with organizational goals and product needs. Openness to collaborating with diverse teams (DevOps, Security, Product) and stakeholders. Management Skills We Need Ability to decompose complex infrastructure projects and deliver value incrementally within defined timeframes. Conscious monitoring and management of technical debt in the context of technical platforms. Optimal delegation of tasks within the team and support for team members’s autonomy. Building a culture of open, two-way feedback focused on continuous improvement. Mentoring and supporting the professional development of team members, particularly in DevOps and Cloud Native areas. Experience building technical communities (guilds), conducting workshops, and facilitating knowledge-sharing sessions. Effective conflict resolution and negotiation between the team and other organizational departments. Technical Skills We Expect Commercial experience in designing architecture and implementing complex infrastructure systems. Practical proficiency in: Cloud (AWS/GCP/Azure), Kubernetes, IaC (Terraform, Helm, Ansible, or similar). Experience architecting and maintaining CI/CD pipelines and deployment systems. Experience with GitLab (GitLab Runners, GitLab CI/CD, GitOps) or similar systems (GitHub Actions, Jenkins). Experience with artifact management systems (Artifactory, Nexus, ECR). Practical programming/scripting skills (Python, Go, Bash, or Shell scripting) in the context of automation. Experience building self-service tools for developers (APIs, CLIs, documentation). Knowledge of monitoring, logging, and observability (Prometheus, Grafana, ELK/OpenSearch, or similar). Experience diagnosing and optimizing performance and infrastructure issues. Practical use of AI tools in engineering work (e.g., GitHub Copilot, ChatGPT for infrastructure code). Experience working with configuration management tools (Git, Policy as Code). Nice to Have Experience building Internal Developer Platforms (IDP) from a platform team perspective. Experience implementing and maintaining DORA metrics for an organization. Experience with Multi-Cloud or Hybrid Cloud architecture. Experience with Security & Compliance in infrastructure context (RBAC, secrets management, compliance scanning). Experience with Cost Optimization and FinOps in cloud environments. Experience building and maintaining disaster recovery and high availability systems. Experience with GitOps and progressive delivery (Flux, ArgoCD, Kyverno). Certifications in Cloud (AWS, GCP, Azure) or Kubernetes areas. Experience mentoring and conducting training for technical teams. What We Offer Real influence on the development of the company and the product. Work in an experienced team that is happy to share its knowledge. A clear vision of development thanks to regular feedback and clear career paths. Regular team-building meetings. Benefits A training budget for courses and conferences that interest you. An extra day off on your birthday. An extra day off for parents. Equipment tailored to your needs. Private medical care and group insurance. Access to an e-learning platform for learning English and a benefits platform. Access to a wellbeing platform and the opportunity to take advantage of workshops and private therapy sessions. Remote work, from the office in Warsaw or from a coworking space in your city.

🏢 Summary: Senior or Staff Backend Engineer role focused on architecting and scaling AI-native backend services for a modern accounting platform. The position involves designing distributed systems, building secure and high-performance APIs, and establishing engineering standards to support rapid, reliable product delivery. You will work closely with Product, AI, and Operations teams to build scalable data pipelines and incident response infrastructure. 🗂️ Requirements: 5–10+ years of backend engineering experience, Proven experience designing and operating production backend systems at scale, Strong expertise in API design and data modelling, Deep understanding of distributed systems and architectural trade-offs, Hands-on experience with AWS or GCP in production environments, Practical experience with CI/CD pipelines and automated testing, Experience building and maintaining observability and on-call practices 📃 Skills: TypeScript, Node.js, React, AWS, GCP, Terraform, PostgreSQL, OpenAI, Azure, CI/CD, APIs, DistributedSystems, DataModelling, Observability 🏢 Description: ABOUT THE COMPANY We're an applied AI company building an AI-native alternative to legacy accounting software — a market worth tens of billions in annual recurring revenue. Our mission is to help entrepreneurs focus on what matters in their business and life, and to help their accountants become more strategic. We've raised $20M from a group of top-tier investors and have grown ARR 60% month-on-month since our public launch. We now serve thousands of businesses and are expanding our product to serve accountants directly — creating a two-sided platform where both business owners and their accountants use and recommend us. We're at an early but proven stage, moving fast, and building a world-class engineering team in Wrocław to match our ambition. ABOUT THE ROLE We're looking for a Senior or Staff Backend Engineer to own and evolve our backend services as we scale. This is a broad, high-impact role — you'll architect new features, build the systems that underpin our core product, and set the engineering standards that shape how the whole team works. The focus is on building a modern, AI-native developer experience. That means working closely with Product, AI, and Operations teams to design agentic systems, distributed data pipelines, and scalable incident response infrastructure — and doing it in a way that lets the team ship with confidence multiple times a day. WHAT YOU'LL WORK ON Architecture and feature design Partner with Product, AI, and Operations teams to architect new features and complex agentic systems. Make clear architectural trade-offs that balance platform, product, and business goals. Backend services and APIs Build and maintain the backend services and APIs that power the core product. Ensure systems are secure, well-tested, and high performance. Distributed systems Design and implement distributed services to orchestrate data pipelines, automate investigations, and enable incident response at scale. Operational excellence Own operational best practices so the team can ship multiple times a day with confidence. Healthy on-call culture and strong observability are part of what you'll build and maintain. Engineering standards Set the bar for writing, communication, and system design across the team. Your influence will shape how a modern AI-native product is built. WHAT WE LOOK FOR 5–10+ years of backend engineering experience A strong track record designing, building, and operating production backend systems at scale. Deep backend fundamentals Expertise in API design, data modelling, and reasoning about distributed systems trade-offs. You understand the nuances, not just the patterns. AWS or GCP hands-on experience Solid understanding of how infrastructure decisions impact application reliability and performance. You've run things in production, not just designed them. CI/CD in practice Practical experience with testing and deployment strategies in high-frequency shipping environments. Observability and on-call maturity A solid grasp of what good observability looks like and how to build healthy on-call practices that don't burn people out. Bonus Experience at an early-stage or scaling startup. Exposure to modern AI and ML systems. Experience shipping product without a dedicated product manager. TECH STACK TypeScript, React, Node.js, AWS, Terraform, PostgreSQL, OpenAI, Azure AI. The team uses GitHub, Slack, Linear, Figma, and Notion day to day. THE TEAM Small, senior, and in-person. The office is in central Wrocław, next to the main train station. The expectation is 4–5 days a week in the office — this is a deliberate choice, not a compromise. Relocation support is available for the right candidate. COMPENSATION & BENEFITS Salary $130,000 – $190,000 USD depending on experience, plus competitive equity. Wellness and commute stipend $100 per month. Hardware Premium hardware provided — MacBook Pro and AirPods. Food Daily in-office lunch and dinner. Time off 20 PTO days plus 9 US public holidays. Relocation Support available for candidates relocating to Wrocław.

🏢 Summary: Senior Java Developer role within a global Risk Management Platform team, responsible for designing and building next-generation risk systems in a distributed banking environment. The position covers full software development lifecycle, architecture contributions, and support of high-availability applications. The role involves working with modern microservices-based systems in a global technology team. 🗂️ Requirements: Minimum 5 years of experience in Java development, Strong experience with Spring Boot and Microservices, Experience in distributed system design, Knowledge of data structures and algorithms, Experience building high availability and low latency systems, Familiarity with Kafka, Docker, Kubernetes, ELK, MongoDB, SQL, Python, Bachelor's degree in Computer Science, IT or related field 📃 Skills: Java, SpringBoot, Microservices, Kafka, Docker, Kubernetes, ELK, MongoDB, SQL, Python, Tableau, DistributedSystems, Algorithms, DataStructures 🏢 Description: Are you looking for a career move that will put you at the heart of a global financial institution? Then bring your skills in analysis, design and development to Citi’s next generation Risk Management Platform development team. By Joining Citi, you will become part of a global organization whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Team/Role Overview You will be part of Citi’s global tech team which is developing next generation Risk Management platform. This role is in Warsaw, Poland and the development team is spread across globe. You will be part of existing group of talented developers from diverse backgrounds and will receive a global perspective working with different teams from different businesses within the bank. What you’ll do: Involve in the full development lifecycle from analysis and design through to deployment and 3rd line production support Help designing the application at low level and contribute to higher level architecture decisions Provide technical guidance and influence over junior members of the team Work closely with other team members to maintain high quality of the created code Work in a leading banking environment on modern risk system software development Play a key role in Citi achieving its mission and learn how to sustain a common risk platform serving many demanding trading businesses What we’ll need from you: Minimum 5 years in modern Java development, with strong Spring Boot and Microservices Excellent understanding of distributed system design, data structures and algorithms Experience with high availability, resiliency, and low-latency applications (a plus) Familiarity with Kafka, Docker, Kubernetes, ELK, MongoDB, SQL and Phyton (a big plus) Experience with Tableau (Reporting and/or API) (a big plus) Strong analytical, problem-solving, communication skills and Can-do attitude Bachelor's in CS/IT or a related field What we can offer you: By joining Citi Solutions Center Poland, you will not only be part of a business casual workplace with a hybrid working model (currently up to 2 days working at home per week), but also (potentially, subject to final offer) receive a competitive base salary and enjoy a whole host of additional benefits which can include: Employer paid Defined Contribution Pension Plan contribution of 6% of employee’s pensionable earnings (PPE Program) Employer paid Private Medical Care Package for employees and Private Medical Care Packages for certain family members available at preferential rates Employer paid Life Insurance Program for employees and Life Insurance for certain family members available at preferential rates Employee Assistance Program financed by Employer Paid Parental Leave Program (maternity and paternity leave; statutory and 2 weeks additional paid paternity leave) Sport Card for employees subsidized via Social Benefits Fund and Sport Cards for certain family members available at preferential rates Additional benefits from Company’s Social Benefit Fund, in particular: Holidays Allowance, support for sport and cultural activities, team building events. Additional day off for volunteering Cafeteria/ flex benefit – a company benefits system which enables employees to select and purchase benefits offered by a provider and available for employees on the platform. Opportunity to receive an annual discretionary incentive award Special offers and discounts for employees Copy and paste the URL below into a new tab on your web browser to view the Remuneration Regulations extract: https://tbcdn.talentbrew.com/company/287/cms/v3/docs/policies/RemunerationRegulations-KeyProvisions-CitibankEurope_plc_05012025_A.pdf Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day. We want the best talent around the world to be energized to join us, motivated to stay, and empowered to thrive. Sounds like Citi has everything you need? Then apply to discover the true extent of your capabilities. #LI-KK1 This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: ------------------------------------------------------ Primary Location Full Time Salary Range: 189 660,00 zł - 322 940,00 zł ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi. Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details. ------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi . View Citi’s EEO Policy Statement and the Know Your Rights poster.