Principal Software Engineer for Collateral and Derivatives

SimCorp; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Flexible working hours

Hybrid model (2 office days, 3 remote)

Healthcare package

Multisport card

Travel insurance

Career development & training

Job summary

SimCorp in Warsaw is seeking a seasoned Senior Full-Stack Developer to contribute to enterprise-grade fintech solutions, working across front-end and back-end layers in a globally distributed environment.

You will own feature delivery, drive automation through tests and CI/CD, mentor peers, and participate in architecture discussions, while leveraging C#, Angular, Azure, and cloud/on-prem knowledge.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, or related field.
• 5+ years of professional experience with C# and Angular.
• Experience in designing and developing enterprise applications in .NET/C#.
• Strong automation frameworks and CI/CD knowledge.
• Solid understanding of cloud and on-prem infrastructures.

Responsibilities

• Design, implement, and maintain features across front-end and back-end (SOA).
• Own feature delivery with high quality, scalability, and performance.
• Drive automation with E2E, API, and integration tests.

Skills

C# proficiency

Angular proficiency

Mentoring

English communication

CI/CD

Cloud & on-prem

Azure DevOps

SQL

Education

Bachelor/Master in CS/Engineering/Math

Tools

Git

TeamCity

Azure DevOps

Microsoft Azure

SQL

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 toSimCorp!

At its foundation,SimCorpis 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 whatwe’resaying, keep reading!

WHY THIS ROLE IS IMPORTANT TO US

Do you want to grow as a Full-Stack Developer by working on complex enterprise-grade solutions in a global fintech company?
At SimCorp, we build products that power investment management and financial institutions worldwide.

As part of our Collateral Management Product Area, you will contribute to the development of enterprise products within the Collateral and Derivatives domain. You will collaborate with colleagues from Ukraine, Poland, Denmark, Austria, and Germany, while gaining deep expertise in applied finance and modern software engineering practices.

WHAT YOU WILL BE RESPONSIBLE FOR

As a Senior Developer in a self-organized Scrum team, you will:

• Design, implement, and maintain new features across both front-end and back-end (SOA).
• Take technical ownership of feature delivery, 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 influence technical decisions.
• 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).
• Actively contribute to Sprint Reviews/Demos and continuous process improvements.

WHAT WE VALUE

We are looking for an experienced engineer with strong 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# and Angular.
• Proven experience in designing and developing enterprise applications. in .NET / C# and working knowledge of Angular.
• Proven experience in automation frameworks and CI/CD.
• Solid understanding of manual testing techniques and QA best practices.
• Strong understanding of Cloud and On-Prem infrastructures.
• Deep knowledge of CI/CD processes and tools (Git, TeamCity, Azure DevOps).
• Hands-on experience with Microsoft Azure and building/managing pipelines.
• Readiness to learn APL.
• Solid understanding of software architecture and design patterns (experience with Domain-Driven Design is a plus).
• Familiarity with XP practices (TDD, pair programming, CI).
• Experience with relational databases (SQL).
• Strong English communication skills (Upper-Intermediate or higher), written and spoken.
• Ability to mentor, guide, and inspire other developers.

**BENEFITS**

• Flexible working hoursand 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 beingdisclosedat the initial stage of candidateengagement.