Senior Full-Stack Software Engineer

SimCorp; Warszawa; Hybrid; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Hybrid work model

Base salary with annual bonus

Medicover healthcare

Multisport / cafeteria

Travel insurance

Job summary

SimCorp in Warsaw is seeking a Senior Full-Stack Software Engineer to join our Investment Operations product area. You will design, implement, and maintain features across front-end and back-end in a self-organized Scrum team, ensuring quality, scalability, and fast delivery for our financial clients.

You will own feature delivery, drive automation, contribute to architecture, and mentor less experienced engineers while collaborating with Product Owners and Tech Leads across multiple countries.

Qualifications

• Bachelor's or master's degree in computer science or related field.
• 5+ years in C#/.NET and Angular.
• Experience designing enterprise apps with .NET/C# and Angular.
• Strong automation frameworks and CI/CD expertise.
• Solid QA practices and manual testing skills.
• Cloud and on-prem infrastructure knowledge.
• Strong English communication; team mentorship.
• Knowledge of Domain-Driven Design and patterns.

Responsibilities

• Design, implement, and maintain features across front-end and back-end (SOA).
• Own feature delivery with high quality and performance.
• Drive E2E, API, and integration tests.
• Perform manual exploratory testing for complex scenarios.
• Define test strategies at module level.
• Collaborate with Product Owners, Tech Leads, and teammates.
• Contribute to architecture decisions and technical reviews.
• Mentor engineers through pair programming and code reviews.
• Improve automation, CI/CD pipelines, and tooling.
• Ensure XP/TDD/clean code practices.
• Participate in sprint reviews/demos and process improvements.

Skills

C#/.NET

Angular

Automation frameworks

CI/CD

Manual testing

Cloud (Azure/on-prem)

English communication

Mentorship

Education

Bachelor's/Master's in CS/Engineering

Tools

Git

TeamCity

Azure DevOps

SQL

Job description

Senior Full-Stack Software Engineer

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 be successful by simplifying their investments, accounting and operations. 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

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 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

YOUR Qualifications

• 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 DomainDriven 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

• Flexible working hoursand hybrid model - 2 days in the office, 3 days remote
• Modern office (next toWilanowskametro 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 to24 daysdomestic,20 daysinternational per year - subject to internal policy)
• Employer-paidMedicoverPlatinum healthcare package (employee-paid family upgrade available)
• MyBenefitCafeteria with a monthly budget provided bySimCorp, 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)
• Medicovertravel insurance for private trips and global business travel insurance
• Possibility to join Deutsche Börse Group Share Plan (eligible after 1 year)
• Copyrightsprogram forcertainroles
• Possibility to develop your career in an international environment
• Professional training and courses provided bySimCorp
• Polish language classes for foreign employees; German and English classes based on business needs
• Integration events, volunteeringinitiativesand employee-led clubs

Compensation ranges are beingdisclosedat theinitialstage of candidateengagement.

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-toback 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.