SumUp Accelerator – Software Engineer Intern

🏢 Summary: Backend Engineer role focused on designing, building, and maintaining scalable backend systems for the Bookings product within an online selling platform. The position involves developing APIs, optimizing performance, and ensuring reliability across web and mobile integrations. You will contribute to technical planning and architecture in a distributed, event-driven environment. 🗂️ Requirements: 5+ years of professional backend engineering experience, Proficiency in Kotlin or Java, Strong experience with Spring Boot, Experience with PostgreSQL, Experience with Kafka, Experience with Docker, Experience with Kubernetes, Experience with AWS, Knowledge of RESTful APIs, Understanding of distributed systems, Experience with event-driven architectures (CQRS, Event Sourcing), Experience with CI/CD pipelines, Experience with GitHub Actions, Experience with observability tools 📃 Skills: Kotlin, Java, Spring, SpringBoot, PostgreSQL, Kafka, Docker, Kubernetes, AWS, REST, CQRS, EventSourcing, CI/CD, GitHubActions, Grafana, Honeycomb, gRPC, Protobuf 🏢 Description: About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. About the Team You’ll join the Sell Online Tribe , the group shaping how merchants bring their businesses to life online. We design and build tools that help millions of entrepreneurs, from barbers to bakers, sell their products and services anywhere . Our focus is on Online Store and Bookings, two products at the heart of SumUp’s ecosystem. Together, they give merchants the power to manage appointments, showcase their offerings, and get paid—all from their phones. We’re a cross-functional team of Product Managers, Designers, and Engineers who move fast, collaborate openly, and care deeply about crafting beautiful, performant mobile experiences. As part of this team, you’ll help us expand into new verticals, close the feature gap, enabling us to position our product as a complete and competitive solution for small merchants, and make digital selling effortless for small businesses everywhere. What You’ll Do Design, build, and maintain scalable backend systems supporting SumUp’s Bookings product Collaborate with frontend and mobile engineers to deliver new features and improve APIs across web, iOS, and Android Participate in technical planning, code reviews, and design discussions to ensure clean, testable, and maintainable code Continuously optimise performance , ensure observability, and uphold our high reliability standards Actively contribute to shaping the technical roadmap for the Sell Online platform You’ll Be Great for This Role If You have 5+ years of professional backend engineering experience You’re fluent in Kotlin (or Java) and have deep experience with Spring Boot You’ve worked with PostgreSQL, Kafka, Docker, Kubernetes, and AWS You understand RESTful APIs, distributed systems, and event-driven architectures (e.g. CQRS, Event Sourcing) You bring experience with CI/CD pipelines, GitHub Actions, and observability tools like Grafana or Honeycomb You thrive in collaborative teams, enjoy mentoring peers, and care about delivering real value to merchants (Nice to have) Familiarity with gRPC, Protobuf, or performance optimisation at the backend/database level Why You Should Join SumUp 🇵🇱 🌎 Opportunity to work from our vibrant Warsaw office in the Hala Koszyki. This involves a hybrid setup 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success 📚 A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education 🚴 Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw 🩺 Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind 💰 PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State 🏖 Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

🏢 Summary: Senior Backend Engineer role focused on building secure backend systems to ensure fiscal compliance of POS products across multiple European markets. The position involves designing and implementing integrations for receipt fiscalization and regulatory reporting within a distributed, cross-functional environment. The role supports international expansion by developing scalable, fault-tolerant backend solutions. 🗂️ Requirements: 5+ years of backend engineering experience, Strong proficiency in Java and/or Kotlin, Solid understanding of system architecture and design principles, Experience with data modeling and API design, Experience building distributed and fault-tolerant systems, Hands-on experience with AWS, Hands-on experience with Kubernetes, Knowledge of Kafka, Knowledge of Postgres, Understanding of CQRS 📃 Skills: Java, Kotlin, AWS, Kubernetes, Kafka, Postgres, CQRS, APIs, Microservices, DistributedSystems 🏢 Description: About the team SumUp’s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools. Our Fiscalization team will accelerate making the following countries fiscally compliant: Italy, Sweden, Norway, Belgium, Austria, and many other European countries. They will also start building the path for integrating with third parties and fiscalizing receipts. As a Senior Backend Engineer , you’ll collaborate with a dynamic, cross-functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers. About the role You will be working on secure backend systems to ensure our SumUp’s Point of Sale (POS) products are compliant in the different countries in our roadmap. Furthermore, you will work with the Fiscalization squad to understand the challenge in each market to design a unique solution to delivery. You’re a developer who values user-centric design, precision, and seamless collaboration. You bring structure to communication and thrive in a cross-functional environment. This will be B2B role for our team in Warsaw. What you’ll do Build and maintain fiscal compliance solutions to enable SumUp's expansion across Italy, Sweden, Norway, Belgium, Austria, and other European markets. Develop integrations with third-party services for receipt fiscalization and regulatory reporting systems. Navigate SumUp's complex POS ecosystem and master fiscalization frameworks across multiple jurisdictions. Collaborate with distributed squad members and stakeholders across 5+ cities in a hybrid environment. You’ll thrive in this role if: You have 5+ years experience in backend engineering with Java and/or Kotlin. You have a strong understanding of fundamental system architecture, design principles, data modeling, and API design. You have a strong experience with distributed and fault-tolerant systems. You have user-level experience working with AWS and Kubernetes. You have good knowledge of Kafka, Postgres, & CQRS. Why You Should Join SumUp (Warsaw) 🇵🇱 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrolment onto our VSOP program: you will own a stake in SumUp’s future success 🚴 Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw 🩺 Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind 💰 PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State. 🏖️ Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

🏢 Summary: Senior Android Developer role focused on building and scaling a Kotlin-based POS mobile application within a SuperApp, contributing to a Kotlin Multiplatform strategy across Android and iOS. The position involves developing new features, improving app architecture, and ensuring high-quality, scalable solutions used globally. The role requires strong expertise in Android development, modern architectures, and testing practices. 🗂️ Requirements: 8+ years of experience in Android mobile development, Strong proficiency in Kotlin, Minimum 2 years of experience with Jetpack Compose, Experience with Kotlin Multiplatform, Knowledge of software design patterns (MVVM or MVI), Experience building modular and scalable app architectures, Experience with reactive programming using Flow and Coroutines, Strong knowledge of testing best practices and writing automated tests 📃 Skills: Kotlin, Android, Jetpack, Compose, KMP, MVVM, MVI, Flow, Coroutines, Concurrency, Testing 🏢 Description: About the team SumUp’s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools. Our POS solution integrates seamlessly into the SumUp SuperApp, which supports both our proprietary register hardware and mobile devices like tablets and phones. As a Senior Android Developer , you’ll collaborate with a dynamic, cross-functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers. About the role We’re evolving toward a Kotlin Multiplatform (KMP) strategy, enabling shared development across Android and iOS. In this role, you’ll learn, refine, and help implement this technology, shaping the future of our mobile apps. You’re a developer who values user-centric design, precision, and seamless collaboration. You bring structure to communication and thrive in a cross-functional environment. This role will be a B2B based role in Warsaw. What you’ll do Build new features for the item catalog within the SumUp SuperApp Help improve the architecture of the application and contribute to our Kotlin Multiplatform strategy Enhance and maintain our unified android app, distributed across 60+ countries, ensuring high-quality, scalable solutions Shape the product’s evolution by identifying opportunities for improvement and contributing to daily decision-making Write thorough documentation and implement robust testing for features before shipping Collaborate closely with Designer, Product Manager and Android engineers to deliver a unified UX experience across platforms You’ll thrive in this role if: You have 8** + years experience in mobile engineering with Android and Kotlin.** You have 2+ years of experience working with Jetpack Compose. You have a solid understanding of software design patterns (e.g., MVVM, MVI) and expertise in building modular, scalable app architectures. You have good knowledge of reactive programming (Flow, Coroutines and Concurrency). You have a strong grasp of testing best practices: knowing what to test, why, and how to write resilient tests. You strive for clean code, and you are flexible to balance pragmatism and perfection. You have a keen interest in multi-platform development using Kotlin Multiplatform. Why You Should Join SumUp (Warsaw) 🇵🇱 🌎 Opportunity to work , from our vibrant Warsaw office with inspiring art-filled lounges and a skyline terrace in the Mennica Legacy Tower. 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrolment onto our VSOP program: you will own a stake in SumUp’s future success 🚴 Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw 🩺 Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind 💰 PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State. 🏖️ Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

🏢 Summary: Android Developer role focused on building and evolving a Point-of-Sale SuperApp using Kotlin and Kotlin Multiplatform. The position involves developing new features, improving app architecture, and ensuring scalable, high-quality mobile solutions across Android and iOS. You will contribute to a shared multiplatform strategy while maintaining robust testing and clean architecture practices. 🗂️ Requirements: 3+ years of experience in Android development with Kotlin, 2+ years of experience with Jetpack Compose, Experience with MVVM or MVI architecture patterns, Experience building modular and scalable mobile architectures, Knowledge of reactive programming using Flow and Coroutines, Experience with concurrency in mobile applications, Strong understanding of testing practices in mobile development, Interest in Kotlin Multiplatform development 📃 Skills: Kotlin, Android, Jetpack, Compose, MVVM, MVI, Flow, Coroutines, Concurrency, KMP, Testing 🏢 Description: About the team SumUp’s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools. Our POS solution integrates seamlessly into the SumUp SuperApp, which supports both our proprietary register hardware and mobile devices like tablets and phones. As an Android Developer , you’ll collaborate with a dynamic, cross-functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers. About the role We’re evolving toward a Kotlin Multiplatform (KMP) strategy, enabling shared development across Android and iOS. In this role, you’ll learn, refine, and help implement this technology, shaping the future of our mobile apps. You’re a developer who values user-centric design, precision, and seamless collaboration. You bring structure to communication and thrive in a cross-functional environment. What you’ll do Build new features for the item catalog within the SumUp SuperApp Help improve the architecture of the application and contribute to our Kotlin Multiplatform strategy Enhance and maintain our unified android app, distributed across 60+ countries, ensuring high-quality, scalable solutions Shape the product’s evolution by identifying opportunities for improvement and contributing to daily decision-making Write thorough documentation and implement robust testing for features before shipping Collaborate closely with Designer, Product Manager and Android engineers to deliver a unified UX experience across platforms Coach and mentor other engineers You’ll thrive in this role if: You have 3** + years of experience** in mobile engineering with Android and Kotlin. You have 2+ years of experience working with Jetpack Compose. You have a solid understanding of software design patterns (e.g., MVVM, MVI) and expertise in building modular, scalable app architectures. You have good knowledge of reactive programming (Flow, Coroutines and Concurrency). You have a strong grasp of testing best practices: knowing what to test, why, and how to write resilient tests. You strive for clean code, and you are flexible to balance pragmatism and perfection. You have a keen interest in multi-platform development using Kotlin Multiplatform. Why you should join SumUp: 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrollment onto our VSOP program: you will own a stake in SumUp’s future success 🚴 Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw 🩺 Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind 💰 PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State. 🏖️ Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

🏢 Summary: Android Developer role focused on building and evolving SumUp’s POS mobile application within the SuperApp ecosystem, with a strong emphasis on Kotlin Multiplatform strategy. The position involves developing new features, improving architecture, and ensuring scalable, high-quality solutions used across 60+ countries. You will collaborate cross-functionally and contribute to testing, documentation, and technical mentorship. 🗂️ Requirements: 3+ years of experience in mobile engineering with Android and Kotlin, 2+ years of experience with Jetpack Compose, Strong knowledge of software design patterns (MVVM, MVI), Experience building modular and scalable app architectures, Good knowledge of reactive programming (Flow, Coroutines, Concurrency), Strong understanding of testing best practices and writing resilient tests, Interest in Kotlin Multiplatform development 📃 Skills: Android, Kotlin, Jetpack, Compose, MVVM, MVI, Flow, Coroutines, Concurrency, Kotlin, Multiplatform 🏢 Description: About the team SumUp’s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools. Our POS solution integrates seamlessly into the SumUp SuperApp, which supports both our proprietary register hardware and mobile devices like tablets and phones. As an Android Developer , you’ll collaborate with a dynamic, cross-functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers. About the role We’re evolving toward a Kotlin Multiplatform (KMP) strategy, enabling shared development across Android and iOS. In this role, you’ll learn, refine, and help implement this technology, shaping the future of our mobile apps. You’re a developer who values user-centric design, precision, and seamless collaboration. You bring structure to communication and thrive in a cross-functional environment. What you’ll do Build new features for the item catalog within the SumUp SuperApp Help improve the architecture of the application and contribute to our Kotlin Multiplatform strategy Enhance and maintain our unified android app, distributed across 60+ countries, ensuring high-quality, scalable solutions Shape the product’s evolution by identifying opportunities for improvement and contributing to daily decision-making Write thorough documentation and implement robust testing for features before shipping Collaborate closely with Designer, Product Manager and Android engineers to deliver a unified UX experience across platforms Coach and mentor other engineers You’ll thrive in this role if: You have 3** + years of experience** in mobile engineering with Android and Kotlin. You have 2+ years of experience working with Jetpack Compose. You have a solid understanding of software design patterns (e.g., MVVM, MVI) and expertise in building modular, scalable app architectures. You have good knowledge of reactive programming (Flow, Coroutines and Concurrency). You have a strong grasp of testing best practices: knowing what to test, why, and how to write resilient tests. You strive for clean code, and you are flexible to balance pragmatism and perfection. You have a keen interest in multi-platform development using Kotlin Multiplatform. Why you should join SumUp: 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 🚀 Enrollment onto our VSOP program: you will own a stake in SumUp’s future success 🚴 Fitness support: work out on-site at our gym or explore the city using the Multisport Card, subsidised by SumUp for access to sports facilities across Warsaw 🩺 Commitment to well-being: access health insurance coverage for you and your family, plus life insurance to further protect your peace of mind 💰 PPK (Employee Capital Plan): grow your savings with joint contributions from SumUp and the State. 🏖️ Generous time off: enjoy 26 days of paid leave plus public holidays and special leave days 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

🏢 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: Lead Software Engineer role focused on building high-performance backend solutions using .NET, SQL, and Azure within a Scrum team. The position combines hands-on development, architectural design, and technical leadership to deliver scalable, cloud-based business-critical applications. Responsibilities include developing REST APIs, ensuring code quality, implementing CI/CD, and driving engineering excellence. 🗂️ Requirements: 5+ years of hands-on experience with .NET and C#, Experience building REST APIs using .NET (OData), Practical experience with SQL databases, Knowledge of OOP, SOLID and design patterns, Experience in solution and system design, Experience with Azure cloud services and architecture, Experience with CI/CD and DevOps principles, Practical knowledge of TDD or BDD, Experience with code reviews and SonarQube, Strong knowledge of software testing tools and methodologies, Proficiency in Git, Experience working in Agile/Scrum environments 📃 Skills: .NET, C#, OData, SQL, Azure, REST, OOP, SOLID, CI/CD, DevOps, TDD, BDD, SonarQube, Git, Agile, Scrum 🏢 Description: WHO WE ARE 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. WHY THIS ROLE IS IMPORTANT FOR US You will join a new team in Platform Product Development. As a Lead Software Engineer, You will leverage your expertise in .NET technologies , databases , and the Azure cloud ecosystem to build high-performance solutions that power business-critical applications. This role requires a strong mix of hands-on engineering, architectural thinking, and leadership to ensure both immediate delivery and long-term sustainability. You will be part of a scrum team working closely with Product Owner and business stakeholders Besides your team you will work with other colleagues across our unit. WHAT YOU WILL BE RESPONSIBLE FOR: You will apply your talents to all stages of the development lifecycle, including review of user stories, development, design, code reviews and writing automated tests. Drive the development of new backend features and system enhancements using .NET, databases, and Azure technologies Work closely with system architect and design solution accordingly to the architectural direction Work closely with product owner and other stakeholders to understand project requirements and provide technical insights. Setting up engineering excellence inside your team and continuously improving it Development of new functionalities. Taking care of quality assurance, refactor existing code, research tools and frameworks to enable future innovations. Work as part of your scrum team to reach the definition of done within each sprint. WHAT WE VALUE ESSENTIAL Over 5 years of hands-on experience utilizing .NET technologies, with a focus on C# and Microsoft .Net. Real world experience of building REST APIs using the .NET stack (OData). DB experience – preferably SQL Knowledge of design patterns and principals (OOP, SOLID) and proven ability to use them in practice Practical knowledge in solution and system design Knowledge of cloud services, infrastructure, pipelines, and architecture — preferably on Azure Practical knowledge of software development practices (like TDD, BDD) Hands-on experience doing peer reviews and utilizing code quality tools like SonarQube Experience in CI/CD and understanding of DevOps principals Strong fundamentals in software testing tools, techniques and methodologies. Proficient in Git and hands-on experience with cloud-based applications, complemented by a background in Agile methodologies. Strong problem-solving skills and the ability to make sound technical decisions. DESIRABLE Experience with JS/TypeScript, Angular, Node.js Familiarity and hands-on experience with PowerShell Experience in FinTech industry 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 photo, age, or any non-professional information from your application. Thank you for aiding us in our endeavour 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 3,000+ colleagues with a broad range of nationalities, educations, professional experiences, ages, and backgrounds. 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 into 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. #Li-Hybrid

🏢 Summary: 6-month full-time Graduate Program focused on building modern e-commerce web applications with AI-powered features. Participants gain hands-on experience in frontend development using React or Angular, integrating with backend services, APIs, and cloud technologies. The role emphasizes practical learning in real digital commerce projects under senior developer mentorship. 🗂️ Requirements: Solid knowledge of HTML, Solid knowledge of CSS, Solid knowledge of JavaScript, Solid knowledge of TypeScript, Understanding of ES6+, Understanding of asynchronous programming, Knowledge of browser APIs, Familiarity with responsive design, Basic experience with React or Angular, Experience with modern styling approaches (Tailwind or CSS Modules), Basic knowledge of RESTful APIs, Experience with Git, Practical ability to use AI development tools 📃 Skills: HTML, CSS, JavaScript, TypeScript, ES6, React, Angular, Tailwind, CSSModules, REST, Git, Nodejs, SQL, NoSQL, Cloud, APIs, AI 🏢 Description: At Columbus , we don’t just implement technology - we give it a human dimension. As a global consultancy, we help organizations create real business value through digital transformation. In Poland, our Digital Commerce team designs and builds modern e-commerce platforms for our Scandinavian customers, providing the technology capabilities and engineering excellence. Location: Wrocław (4 days per week at the office) Start Date: July 2026 (6-month program, full-time) What You'll learn with us This is more than a junior role - it’s a 6-month structured Graduate Program designed to give you real skills and experience in IT. Under the guidance of experienced developers, you will learn how to: Build modern e-commerce web applications and integrate them with backend services and AI solutions. Create performant and interactive user interfaces using frameworks like React or Angular, writing reusable, scalable code with TypeScript. Deliver AI-powered features such as product recommendations or conversational shopping experiences by integrating the frontend with intelligent APIs. Collaborate effectively with designers, product managers, and backend engineers, developing both your technical and soft skills. Gain practical knowledge of Node.js, cloud platforms, and databases, broadening your perspective beyond the frontend layer. What we’re looking for Solid frontend fundamentals : HTML, CSS, JavaScript, and TypeScript. A formal degree isn't required - skills matter most. Good understanding of modern JavaScript (ES6+) , asynchronous programming, and browser APIs. Familiarity with responsive design principles and cross-browser compatibility. Basic experience with React OR Angular and modern styling approaches (e.g., Tailwind, CSS Modules). Basic knowledge of RESTful APIs and using version control systems (Git). Practical ability to use AI tools - you're comfortable using code assistants, design-to-code tools, or AI-based debugging solutions. A broader understanding of the frontend role: basic knowledge of Node.js, cloud concepts, and databases (SQL/NoSQL) is a plus. Communicative spoken English (min. B2 level) and Polish. Strong problem-solving skills, a willingness to learn, and a proactive attitude. What's in it for You First and foremost - you’ll build, learn, ask, try, fail, improve - and actually grow with us. Additionally, we offer: Competitive compensation from day one: 8 000 - 10 000 PLN gross/month (Employment Contract). Practical e-commerce experience with AI-driven development. Participation in Columbus global accelerator network: you'll join online training sessions and a 3-day trip to our HQ in Ballerup, Denmark to meet other accelerators from around the world! 2 500 PLN for personal development budget Great benefits package, including the MyBenefit platform (e.g., Multisport, cinema tickets, vouchers), Luxmed, and life insurance. Opportunity to participate in company events, weekly team lunches, and fun team-building activities. We believe great teams are built by people with different perspectives and experiences. If you have a solid foundation and motivation to learn, we encourage you to apply!

🏢 Summary: Senior Software Engineer role focused on designing and developing backend systems using C#/.NET and APL within a cloud-based Azure environment. The position involves re-architecting a core investment management platform to operate efficiently as a SaaS solution on Microsoft Azure. Responsibilities include system architecture, automated testing, CI/CD, and technical leadership in an agile setup. 🗂️ Requirements: Bachelor’s degree in Computer Science, Information Technology, or related field, 5+ years of software development experience, Expert knowledge of C#, Strong knowledge of .NET Core/Framework, Solid understanding of object-oriented programming, Experience designing architectural patterns, Experience with REST and streaming APIs, Experience with Azure Service Bus, Proficiency with Microsoft Azure, Experience with CI/CD pipelines, Experience with automated testing and unit testing, Experience with Reqnroll or Specflow, Proficient with Git, Experience working in Azure environments 📃 Skills: C#, .NET, APL, Azure, REST, APIs, ServiceBus, CI/CD, Git, Reqnroll, Specflow, OOP 🏢 Description: Are you a passionate developer with an agile mindset? And would you like to be part of a strategically important product area in one of the world’s leading software providers within the Fintech industry? Then you should join SimCorp as a C# & APL Software Engineer! WHO WE ARE? For over 50 years, we have worked closely with large and global investment and asset managers to become the world’s leading provider of integrated investment management solutions. We are 2,500+ colleagues with a broad range of nationalities, educations, professional experiences, ages, and backgrounds in general. 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. While striving to deliver client value, we believe it is vital to consider our people and our planet in every business decision we make. Acting responsibly is not optional. It is essential. WHY THIS ROLE IS IMPORTANT TO US We are looking for an experienced Software Engineer with expertise in C#, a deep understanding of its ecosystems, and a strong background in object-oriented programming. The ideal candidate should be familiar with the .NET framework, skilled in designing and implementing architectural patterns. Additionally, proficiency in automated testing platforms, unit tests, and Git for code versioning, along with experience in Azure environments, is highly desirable. The SimCorp Dimension product was originally designed for running on-premises with clients, utilizing hardware resources being available 24/7. As we are moving our business model towards being a SaaS provider and based on Microsoft Azure, we need to re-implement our core platform to be efficient on dynamic Azure infrastructure and with a relentless focus on the cost of compute. You’ll be part of an engineering team in the Transactions & Private Debt product area, contributing to everything from architecture and component design to performance and accessibility and responsible for delivering functionality that enables clients to make investment decisions with our back-office applications. The ideal candidate should have an eagerness to learn APL (A Programming Language). Prior experience with APL isn’t required, we provide comprehensive training and a supportive environment to help you succeed. Our company also partly owns Dyalog APL, ensuring the language remains actively maintained and relevant. For now, the most of our work is done in APL. The Transactions & Private Debt product area consists of four teams, each with four to seven software engineers across several geographical locations. The team consist of team members in Denmark and Ukraine, and as a C# & APL Software Engineer you will therefore work closely together with other team members located both in Europe and India. WHAT YOU WILL BE RESPONSIBLE FOR Lead end-to-end design and development of backend systems using C#/.NET and APL Architect scalable, secure, and high-performance cloud-native solutions (Azure). Mentor and guide a team of engineers through code reviews, technical planning, and agile practices. Collaborate with product managers and front-end engineers to deliver full-stack features. Ensure code quality and system reliability through unit testing, integration testing, and CI/CD pipelines. Drive technical discussions and decision-making aligned with long-term business goals. Be proactive in improving automation, tools, frameworks, etc. Identify bottlenecks and bugs, and devise solutions to these problems. Utilize code versioning tools such as Git for version control. Work within a continuous integration environment to ensure smooth and reliable deployment of applications. Require excellent business and communication skills, and to be able to understand client specific requirements. YOUR QUALIFICATION Bachelor’s degree in computer science, information technology, or a related field. 5+ years of experience in software development. Expert knowledge of C#, .NET Core/Framework, and object-oriented design principles. Experience with APIs, including streaming, REST, and Azure Service Bus Familiarity with various design and architectural patterns. Proficient with cloud platforms, especially Microsoft Azure (App Services, Functions, Key Vault, etc.). Familiarity with CI/CD, automated testing, and agile development methodologies. Experience with test automation tools such as Reqnroll/Specflow. Proficient understanding of code versioning tools such as Git. Experience working in an Azure environment. Strong problem-solving skills and the ability to work independently and as part of a team. Excellent communication and team leadership skills. NICE-TO-HAVE Experience or familiarity with a vector-based or functional language will be considered as a plus, in terms of learning APL. Experience in fintech or other regulated industries. Experience in a technical leadership role. 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 click below to apply to learn more about the vacancy and what SimCorp has to offer regarding salary, benefits, and perks. Applications are continuously assessed, so please send your CV in English as soon as possible. If you are interested in being a part of SimCorp but are not sure this role is the right fit, submit your CV anyway. SimCorp is on an exciting growth journey, and our Talent Acquisition Team is ready to help 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.

🏢 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.