Senior Software Engineer - Transactions

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 a Senior Software Engineer to join the Transactions & Private Debt product area and contribute to business-critical functionality used by our clients in their daily investment operations. You will work as part of an experienced engineering team, contributing to backend development, component design, performance, reliability and maintainability. The work is technically interesting because it combines complex business logic, long-lived enterprise software and the need to keep improving how we build and deliver functionality. Most of the current product logic is written in APL, while we are increasing our use of C#/.NET in new development, integrations, cloud enablement, and platform modernization. You do not need prior APL experience. We will provide training and support and we are looking for someone who is curious enough to learn what is needed while bringing strong engineering practices from C#/.NET. You will work with experienced engineers across locations and have room to influence how we build, modernize and evolve the product. WHAT YOU WILL BE RESPONSIBLE FOR As a Senior Software Engineer, you will help the team build reliable, maintainable and well-tested backend solutions. In practice, you will: Design, implement, test and maintain backend functionality using APL and, where relevant, C#/.NET Contribute to component design, code quality, performance and long-term maintainability Work closely with product managers, engineers and other stakeholders to understand requirements and deliver client-relevant functionality Improve reliability and delivery through code reviews, automated testing, CI/ CD and pragmatic engineering practices Investigate technical issues, performance bottlenecks and bugs and help design sustainable solutions Share knowledge with colleagues and contribute to technical discussions within the team YOUR QUALIFICATION Bachelor’s degree in computer science, information technology, or a related field Solid experience with C#/.NET and backend development Good understanding of object-oriented design, clean code, APIs, and integration patterns Experience with automated testing, code reviews, CI/CD, and Git-based workflows Ability to work with complex business logic and collaborate with both technical and non-technical colleagues Interest in learning APL. Prior APL experience is not required Experience with Azure or cloud-based development is an advantage, but not a prerequisite NICE-TO-HAVE Experience from fintech, financial services or another regulated industry Exposure to functional, array- oriented or vector-based programming languages Experience with Azure services or cloud-based development Experience mentoring other engineers or taking ownership of a component 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 and 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.