Quant Developer

🏢 Summary: Backend-focused developer role working on risk management software for financial institutions, with primary development in Python and exposure to multiple languages and cloud platforms. The position involves implementing new functionalities, customizing solutions to client needs, and contributing to complex financial systems in international teams. It offers high-impact technical work in commodities trade risk assessment within a multi-cloud environment. 🗂️ Requirements: Degree in Computer Science, Mathematics, Physics or related field, Advanced knowledge of software design, Strong understanding of data structures, Strong understanding of algorithms, Advanced proficiency in Python, Ability to read and modify code in multiple programming languages, Exposure to multiple programming languages and paradigms, Experience working with cloud platforms, Good communication skills for working with customers 📃 Skills: Python, C++, Go, Rust, TypeScript, AWS, Azure, GCP, Algorithms, DataStructures, CloudComputing 🏢 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, marketable 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 Olympics , 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: You will be working in international teams, serving customers from financial institutions. You will participate in the implementation of risk management software: adjusting it to customers' requirements and developing new functionalities & applications. Technical Focus: The backend is mainly in Python. You can expect to spend around 70%+ of your development time in Python , with exposure to C++, Go, Rust and TypeScript. We are multi-cloud and are currently in production with AWS and Azure. Code Flexibility: We expect you to be able to be comfortable reading code in any language. We do not expect you to be an expert in all of them, but we do require you to be OK with doing a minor change from time to time in a tech stack you aren't using daily (don't worry, it will be reviewed before merging). What makes you the right fit? We are looking for specialists whose expertise is built upon a rigorous academic foundation and proven technical skill: Academic Foundation: A degree in Computer Science, Mathematics, Physics or other relevant field. Core Skills: Advanced knowledge of software design, data structures and algorithms . Technical Breadth: Exposure to multiple programming languages and paradigms. Communication: Good interpersonal and communication skills with openness to work with customers. Experience: Financial knowledge and/or experience in financial markets will be an advantage. Familiarity with cloud computing such as AWS / Azure / GCP is a plus. 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. 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: 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: 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: Front-End Developer role focused on building high-quality, design-driven e-commerce stores for global DTC brands using a modern tech stack. The position involves creating responsive, performant, and accessible user interfaces while collaborating closely with a senior engineering team. It offers clear growth levels and end-to-end ownership of features from concept to deployment. 🗂️ Requirements: Minimum 2 years of experience with JavaScript, Minimum 2 years of experience with HTML, Minimum 2 years of experience with CSS, Experience building responsive layouts, Knowledge of web performance best practices, Knowledge of accessibility standards, Knowledge of SEO principles, Experience integrating third-party APIs, Fluent Polish language, Communicative English (verbal and written) 📃 Skills: JavaScript, TypeScript, HTML, CSS, Sass, React, Remix, Next.js, Shopify, Hydrogen, Liquid, Oxygen, Vercel, Cloudflare, APIs, SEO, CoreWebVitals 🏢 Description: More about us and our projects [ click ] Hey! We’re looking for a talented Front-End Developer to help us build beautiful e-commerce stores for some of the world’s best DTC brands. If you want to level up your front-end skills, work in a modern tech stack, and be part of a senior team - this role is for you. We also take growth seriously. We have four clearly defined engineering levels (SE I, SE II, Senior SE I, Senior SE II), each with explicit expectations. You’ll always know where you stand and what’s required to reach the next level. What we do Since 2019, we’ve worked with brands like Lady Gaga, Carhartt WIP, Magda Butrym and Rolex , and collaborated with designers from Pentagram , ex-Tesla , and ex-Apple . We're focused entirely on eCommerce , and our goal is simple: to be one of the best eCommerce tech teams in the world . About the Role Skills we're looking for 2+ years of experience in Javascript, HTML and CSS Experience in building high-quality, responsive layouts Eye for the design detail and caring about user experience Awareness of web performance best practices (Core Web Vitals), developing for accessibility and SEO Interpreting and working with third-party APIs Communicative in both verbal and written English Fluency in Polish language What makes a strong fit You think in trade-offs - when you choose an approach, you can explain why and what you're giving up You own your work end-to-end: from unclear brief to deployed feature, including the parts nobody explicitly asked you to handle When something isn't going to plan, you raise it early - and you bring a proposal, not just the problem You can explain a technical decision clearly to a developer and a PM in the same conversation Nice to have: Experience in e-commerce (any platform) What it’s really like to work here At Commerce-UI, we trust each other’s judgment and take pride in our craft. Everyone here owns their work - not because someone expects it, but because we care about what we build and the people we build it with. We believe in high standards and flexibility, and we back that with real autonomy from day one. You’ll quickly see how we operate: fast, focused, and with a lot of trust that everyone knows what they’re doing. We don’t rely on layers of management or rigid playbooks. Instead, we collaborate closely, share context openly, and help each other grow. Things move quickly, but that’s part of the fun - it’s how we learn, adapt, and ship meaningful products for iconic brands. If you value ownership, clarity, and a team that believes in mutual trust and high craftsmanship, you’ll feel right at home with us. Why you’ll love working here Small, senior, passionate team - no bureaucracy, real impact Work on ambitious, design-led projects for global brands Freedom to shape how we build things Competitive pay and flexible, remote-friendly culture Our Tech stack Shopify Hydrogen (React-Router 7/Remix) or Next.js Oxygen, Vercel, Cloudlfare Shopify Liquid/Online Store 2.0 Typescript (always) CSS, Sass, CSS Modules, Stitches, Vanilla extract Toolkit Cursor, Webstorm ChatGPT Google Workspace Jira Notion Loom Team Most of the time, you’ll collaborate closely with: Tomek and Kuba - Engineering Managers Robert - Head of Project Management Michał - Co-Founder & CTO Szymon - Co-Founder How our hiring process looks like? Application → send us your CV and any link/portfolio that show your craft. We review every application and always get back to you - regardless of the outcome. Discovery call → this is short (30 minutes) mutual check-in - we want to understand your expectations and share ours. We will talk in Polish, and English. Task → a short focused task based on the kind of work we actually do. 1-1,5 hours with clear instructions. We respect your time. Tech call → a deep dive into how you think and solve problems. You’ll chat with Kuba or Tom (our Engineering Managers) - no trick questions, just real talk about tech and delivery. Offer → if it’s a match, we’ll schedule a short call (20-30 minutes) to go over the details and next steps. If we don’t move forward we’ll do our best to give you thoughtful feedback.

🏢 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: 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 Product Engineer role focused on building and shipping intuitive, high-performance end-to-end web product experiences in an AI-native accounting platform. The position involves owning full-stack feature delivery from UI to server-side logic, collaborating directly with leadership and design, and setting engineering best practices. The role requires strong frontend expertise, cloud infrastructure knowledge, and hands-on work with modern AI tooling. 🗂️ Requirements: 5+ years of full-stack product engineering experience, Proven experience building and shipping production web applications, Strong practical experience with React and TypeScript, Experience designing and working with AWS or GCP cloud infrastructure, Ability to design and implement scalable server-side logic, Experience delivering end-to-end features from frontend to backend, Ability to work on-site 4–5 days per week in Wrocław 📃 Skills: TypeScript, React, Node.js, AWS, GCP, Terraform, PostgreSQL, OpenAI, Azure, GitHub, Figma, LLM 🏢 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 Product Engineer with a strong track record of building intuitive, performant end-to-end product experiences. The defining quality of this role is craft — you care deeply about how things feel to use, and you're energised by the opportunity to make software feel like magic because AI is doing real work behind the scenes. You'll work directly with the CEO, Operations, AI, and Design teams to scope and ship user-facing features. There's no product manager layer here — you'll engage directly with users, iterate quickly, and own the quality of what you deliver from UI through to server-side logic. WHAT YOU'LL WORK ON End-to-end feature delivery Work directly with the CEO, Operations, AI, and Design teams to scope and ship polished, scalable user-facing features with beautiful UI components and robust server-side logic. Engineering best practices Redefine what best-in-class software development looks like for the team. You'll set the standard, not follow it. Technology evaluation Continuously research and evaluate new technologies to improve the speed, scalability, and performance of the product. Bring recommendations and drive adoption. User-focused iteration Engage directly with users to understand how the product is being used, iterate quickly, and deliver experiences that feel genuinely polished — not just functional. WHAT WE LOOK FOR 5+ years of full-stack product engineering A strong track record building and shipping full-stack production web applications that real users depend on. Modern frontend fluency Deep practical experience with React and TypeScript. You write frontend code that is fast, accessible, and maintainable — and you have an eye for detail in UI. Cloud infrastructure experience Familiarity with AWS or GCP architecture and design patterns, and an understanding of how infrastructure choices affect product performance and reliability. Strong communication Clear written and verbal communication. You can articulate trade-offs, give and receive direct feedback, and work well without a lot of process around you. Bonus Experience as a founder or early founding team member. Familiarity with modern LLM tooling and AI-assisted development (Cursor, Claude Code, etc). Background in finance or accounting. 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: 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: 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.

🏢 Summary: Engineering Team Leader role focused on leading the development of a client engagement platform for retail financial products, covering pricing, packaging, eligibility, entitlement management, and benefit activation. The position combines hands-on technical leadership with team management and end-to-end ownership of scalable Java-based microservices architecture. The offer includes remote or hybrid work, training opportunities, and comprehensive employee benefits. 🗂️ Requirements: Several years of software development experience, Experience managing development teams, Ability to design and develop Java-based microservices, Knowledge of scalability, performance, and reliability principles, Experience delivering projects from architecture to deployment, Ability to collaborate with multi-skilled and remote teams 📃 Skills: Java, Micronaut, Kubernetes, Rancher, gRPC, Kafka, Pulsar, RabbitMQ, Chronicle, Postgres, MongoDB, Redis, Kotlin, Swift, Angular, TypeScript, JavaScript, RxJS, Nx, Prometheus, Grafana, OpenSearch, Opsgenie, GitLab, JUnit, Testcontainers, Appium, Playwright, Jira, Confluence, Firebase 🏢 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. We are building new client engagement product for retail clients, combining multiple financial benefits and value-added services into a structured offering. The platform is intended to support the full product lifecycle, including offer configuration, pricing, client eligibility, plan changes, access rights, and benefit activation. An Engineering Team Leader is being sought to take end-to-end ownership of the platform and lead the team responsible for its delivery. Ideally, this would be someone with strong e-commerce or paid-product experience, including exposure to pricing, packaging, customer access, product changes, and entitlement management, as well as an understanding of the product, technical, and commercial challenges behind such offerings. 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. Requirements Several years of experience as a software developer. Experience as a team manager. Ability to create and develop Java-based microservices. Knowledge of system scalability, performance, and reliability. Experience in projects from architecture to deployment. Ability to work effectively with multi-skilled and remote teams. Technologies we work with Backend: Microservices mainly in Java 17+ with Micronaut. Deployment on Rancher (Kubernetes) across multiple data centers. Communication between microservices via gRPC. Asynchronous messaging using Kafka, Pulsar, RabbitMQ, Chronicle. Databases: Postgres, MongoDB, Redis. Mobile: Android: Native Kotlin, modular architecture, Clean Architecture, MVI/MVVM, reactive with Coroutines/Flow and Compose. iOS: Native Swift, modular architecture, MVVM-C, reactive with Combine, views with SwiftUI. Mobile tools: Firebase (Crashlytics, Remote Config, Analytics), Localise. Web: Angular with TypeScript, JavaScript, and RxJS. Microfrontend architecture using web components, developed in a monorepo with Nx. Observability & DevOps: Monitoring with Prometheus, Grafana, OpenSearch, Opsgenie. Code in IntelliJ with Copilot support. Version control: GitLab, CI/CD with GitLab CI. Testing: JUnit, Testcontainers, Appium, Playwright. Tools & Collaboration: Task tracking in Jira, knowledge management in Confluence. Extensive use of Google Workspace: Gmail, Drive, Docs, Meet, Chat. Internal GenAI tools available to all employees. 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.