Senior Software Engineer (.NET)

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. Sim. Corp 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. Sim. Corp 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. WHY THIS ROLE IS IMPORTANT TO US Reliable, high-performing software helps investment professionals make informed decisions and run critical business processes. As a Senior Software Engineer, you will help evolve the Portfolio Analytics area of Sim.

Corp Dimension, strengthening the backend services and APIs that support our clients. You will join an agile team of 5–7 colleagues working with C#, .NET, Dyalog APL, Oracle, and AI-assisted development tools. The team improves and supports the Asset Manager module in our Sim. Corp Dimension product. We use a variety of technologies, but the main ones are C# and an Oracle database.

You will be working with backend and APIs. The present and near future main topics are good maintainability, high system performance, continuous integration, and delivery, and moving into our unified platform for cloud. We welcome engineers who are ready to grow further in technical leadership as well as those who already have experience guiding others.

WHAT YOU WILL BE RESPONSIBLE FOR Collaborate with product and engineering colleagues to understand customer needs, challenge assumptions, shape solutions, and deliver tested, supportable software. Design, build, and maintain backend components and APIs for Sim. Corp Dimension using C#/.NET and related technologies. Improve system performance, maintainability, reliability, and build efficiency through pragmatic engineering and continuous improvement.

Use AI-assisted development tools responsibly to support activities such as exploration, implementation, testing, documentation, and code review. Contribute to automated testing, continuous integration, and continuous delivery practices that enable predictable, high-quality releases. Help shape technical decisions and share knowledge through code reviews, pairing, mentoring, and constructive collaboration across the team.

WHAT WE VALUE Experience developing production software with C# and/or APL , or comparable experience that demonstrates strong backend engineering capability. Interest in contributing to technical design and helping the team make practical decisions about scalable, high-performing applications, services, or APIs. Familiarity with software delivery practices such as automated testing, version control, continuous integration, and continuous delivery.

Openness to using AI-assisted development tools thoughtfully, while maintaining sound judgement around quality, security, and maintainability. Curiosity and willingness to learn additional technologies, including Dyalog APL, and to deepen your understanding of investment-management software. A collaborative approach to solving problems, sharing knowledge, and growing into technical leadership.

Experience with Angular, Node.js, JavaScript/TypeScript, HTML, CSS, Oracle databases, or financial systems is welcome but not required .

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 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) My.

Benefit Cafeteria with a monthly budget provided by Sim. Corp , which can be used to finance a Multisport card (with a 25% employee contribution) or choose other lifestyle options 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 Professional training and courses provided by Sim.

Corp Polish language classes for foreign employees; German and English classes based on business needs Compensation ranges are being disclosed at the initial stage of candidate engagement. Visit our career pages to learn more about working at Sim. Corp : www.simcorp.com/career 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 Sim. Corp , we recognize that bias can unintentionally occur in the recruitment process. To uphold fairness and equal opportunities for all applicants, we kindly ask you to exclude personal data such as photo, age, or any non-professional information from your application.

Thank you for aiding us in our endeavor to mitigate biases in our recruitment process. If you are interested in being a part of Sim. Corp but are not sure this role is suitable, submit your CV anyway. Sim. Corp 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.