Senior Software Engineer (C#/.NET)

SimCorp; Warszawa; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Bonus opportunity

Pension benefits

Flexible hours

IP sprints

Professional development

Job summary

SimCorp is seeking an experienced engineer to contribute to investment operations product development. You will design and implement features across front-end and back-end, lead technical delivery, and drive automation with E2E and API tests.

You will mentor colleagues and participate in architectural discussions, CI/CD improvements, and best practices, in a collaborative, international environment. The role offers a hybrid work model, with a focus on Azure-based enterprise applications, and

Qualifications

• 5+ years of professional experience with C# (.NET or .NET Framework) and Angular.
• Experience in designing and developing enterprise applications.
• Proficient English communication, written and spoken.

Responsibilities

• Design, implement, and maintain new features across both front-end and back-end (SOA).
• Lead the technical delivery of features, ensuring high quality, scalability, and performance.
• Drive automation-first approach: design, implement, and maintain E2E, API, Integration tests.
• Perform manual exploratory testing for complex scenarios.
• Define test strategies at feature/module level.
• Collaborate with Product Owners, Technical Leads, and teammates during analysis, refinement, and development.
• Contribute to architectural discussions and participate in technical decision-making.
• Mentor and support less experienced engineers through pair programming, code reviews, and knowledge sharing.
• Drive improvements in automation, CI/CD pipelines, and development tools.
• Ensure adherence to engineering best practices (XP, TDD, clean code).
• Engage in Sprint Reviews/Demos and continuous process improvements.

Skills

C#/.NET

Angular

Automation frameworks

CI/CD

Manual testing

Azure Cloud

SQL

English (Upper-Intermediate+)

Mentoring

Education

Bachelor’s or Master’s in CS/Engineering/Math

Tools

Git

TeamCity

Azure DevOps

Job 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 build products that power investment management and financial institutions worldwide. We support some of the largest financial institutions in the world to improve their investments, accounting, and operations by simplifying them. Investment Operations is a product area within SimCorp’s Product Division, which delivers functionality enabling the operations users to be highly efficient. It also offers full STP and automation capability for the workflows and processes seamlessly across the product areas and the financial institutions workflows. As part of our Investment Operations Product Area, you will contribute to the development of enterprise products within this product area. You will collaborate with colleagues from Ukraine, Poland, Denmark and Germany, while gaining deep expertise in applied finance and modern software engineering practices.

WHAT YOU WILL BE RESPONSIBLE FOR

• Design, implement, and maintain new features across both front-end and back-end (SOA).
• Lead the technical delivery of features, ensuring high quality, scalability, and performance.
• Drive automation-first approach: design, implement, and maintain E2E, API, Integration tests.
• Perform manual exploratory testing for complex scenarios.
• Define test strategies at feature/module level.
• Collaborate closely with Product Owners, Technical Leads, and teammates during analysis, refinement, and development.
• Contribute to architectural discussions and participate in technical decision-making.
• Mentor and support less experienced engineers through pair programming, code reviews, and knowledge sharing.
• Drive improvements in automation, CI/CD pipelines, and development tools.
• Ensure adherence to engineering best practices (XP, TDD, clean code).
• Engage in Sprint Reviews/Demos and continuous process improvements.

WHAT WE VALUE

• We are looking for an experienced engineer with well-developed technical and collaborative skills.
• Bachelor’s or master’s degree in computer science, Engineering, Mathematics, or a related field.
• 5+ years of professional experience with C# (.NET or .NET Framework) and Angular.
• Extensive experience in designing and developing enterprise applications.
• in.NET / C# and working knowledge of Angular.
• Demonstrated expertise in automation frameworks and CI/CD.
• Solid understanding of manual testing techniques and QA best practices.
• Comprehensive understanding of Cloud and On-Prem infrastructures.
• Deep knowledge of CI/CD processes and tools (Git, TeamCity, Azure DevOps).
• Extensive experience with Microsoft Azure and building/managing pipelines.
• Readiness to learn APL, developing new features and debugging existing functionality, with full support from our team throughout the learning process.
• Solid understanding of software architecture and design patterns with experience in Domain-Driven Design.
• Familiarity with XP practices (TDD, pair programming, CI).
• Experience with relational databases (SQL).
• Proficient English communication skills (Upper-Intermediate or higher), written and spoken.
• Ability to mentor, guide, and inspire other developers.

NICE TO HAVE

• Experience with Azure or similar cloud platforms.
• Background in FinTech or capital markets.
• Knowledge and experience in the financial domain, fintech, derivatives (options, futures, swaps, etc.) is an advantage.

BENEFITS

• Any employment contract should include a solid pay package, bonus opportunity, and pension benefits.
• Flexible work hours, a hybrid workplace model.
• IP sprints, giving you three weeks each quarter to develop your skills and help drive company growth.
• We practice an individual approach to professional development to support the direction you want to take.

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, education, 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 and welcome applicants from all backgrounds, without regard to race, gender, age, disability, or any other protected status under applicable law. 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.

SimCorp is a provider of industry-leading integrated investment management solutions for the global buy side. Founded in 1971, with more than 3,000 employees across five continents, SimCorp is a truly global technology leader that empowers more than half of the world’s top 100 financial companies through its integrated platform, services, and partner ecosystem. SimCorp is a subsidiary of Deutsche Börse Group. As of 2024, SimCorp includes Axioma, the leading provider of risk and management and portfolio optimization solutions for the global buy side.