Principal Software Engineer (C#/.NET/Angular)

SimCorp Sp. z o.o.; Warszawa; Hybrid; PLN 320,000 - 520,000; Full time

Benefits offered by this job

Hybrid workplace model

Flexible work hours

IP sprints: 3 weeks per quarter for up

Pension

Job summary

SimCorp is seeking a Principal Full-Stack Software Engineer to guide design, development, and quality across enterprise-scale applications.

You will mentor engineers, shape test strategies, and balance coding with automation initiatives, leveraging C#, Angular, and Azure DevOps in a hybrid Poland team. This role offers collaboration across Ukraine, Poland, Denmark, and Germany and a path to technical leadership.

Qualifications

• Bachelor’s or master’s degree in computer science, engineering, mathematics, or a related field.
• 8+ years of experience in software engineering with combined Dev QA responsibilities.
• Expertise in .NET / C# and working knowledge of Angular.
• Extensive background in test automation (E2E, API, Integration) and test strategy.
• Solid experience in architecting and developing enterprise-scale applications.
• Extensive knowledge of Cloud and On-Prem infrastructures (Microsoft Azure experience).
• Deep expertise in CI/CD pipelines and tools (Git, TeamCity, Azure DevOps).
• Thorough understanding of software architecture, design patterns, and Domain-Driven Design.
• Familiarity with XP practices (TDD, pair programming, continuous integration).
• Experience with relational databases (SQL).
• Readiness to learn APL, developing new features and debugging existing functionality, with full support from our team throughout the learning process.
• Proficient English communication skills (Upper-Intermediate or higher), both written and spoken.
• Ability to mentor, motivate, and guide a team toward technical excellence and efficient delivery.

Responsibilities

• Provide technical leadership in design, development, and testing.
• Define and own test architecture and quality strategy at team level.
• Balance active coding (C#, Angular, APL) with guiding automation initiatives
• Drive adoption of automation-first practices across the team.
• Ensure high-quality delivery by monitoring coverage, test metrics, and quality KPIs.
• Mentor and coach engineers in development, automation, and testing skills.
• Represent QA Dev combined approach in cross-team forums.
• Collaborate with stakeholders (POs, TLs, architects) to align technical and quality goals.
• Conduct in-depth root cause analysis for complex defects and ensure preventive actions
• Advocate for and implement improvements in tools, CI/CD pipelines, and engineering processes.
• Continuously assessing and improving engineering processes, recommending new tools and technologies to enhance productivity and software quality
• Represent the team in technical forums and contribute to cross-team knowledge exchange.

Skills

Leadership

.NET / C#

Angular

Test automation

CI/CD pipelines

Mentoring

English communication

Enterprise-scale apps

Azure Knowledge

Git

Education

Bachelor’s or Master’s in CS/Engineering

Tools

Git

TeamCity

Azure DevOps

SQL

APL

Job description

Principal 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 Principal Software Engineer, you will:

• Provide technical leadership in design, development, and testing.
• Define and own test architecture and quality strategy at team level.
• Balance active coding (C#, Angular, APL) with guiding automation initiatives
• Drive adoption of automation-first practices across the team.
• Ensure high-quality delivery by monitoring coverage, test metrics, and quality KPIs.
• Mentor and coach engineers in development, automation, and testing skills.
• Represent QA Dev combined approach in cross-team forums.
• Collaborate with stakeholders (POs, TLs, architects) to align technical and quality goals.
• Conduct in-depth root cause analysis for complex defects and ensure preventive actions
• Advocate for and implement improvements in tools, CI/CD pipelines, and engineering processes.
• Continuously assessing and improving engineering processes, recommending new tools and technologies to enhance productivity and software quality
• Represent the team in technical forums and contribute to cross-team knowledge exchange.

Your qualifications

• We are looking for an engineer who has demonstrated leadership abilities
• Bachelor’s or master’s degree in computer science, Engineering, Mathematics, or a related field.
• 8+ years of experience in software engineering with combined Dev QA responsibilities.
• Expertise in .NET / C# and working knowledge of Angular.
• Known for impactful leadership, resulting in improved efficiency and project success among engineering teams
• Extensive background in test automation (E2E, API, Integration) and test strategy
• Solid experience in architecting and developing enterprise-scale applications.
• Extensive knowledge of Cloud and On-Prem infrastructures (Microsoft Azure experience)
• Deep expertise in CI/CD pipelines and tools (Git, TeamCity, Azure DevOps).
• Thorough understanding of software architecture, design patterns, and Domain-Driven Design
• Familiarity with XP practices (TDD, pair programming, continuous integration).
• Experience with relational databases (SQL).
• Readiness to learn APL, developing new features and debugging existing functionality, with full support from our team throughout the learning process.
• Proficient English communication skills (Upper-Intermediate or higher), both written and spoken
• Ability to mentor, motivate, and guide a team toward technical excellence and efficient delivery

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

Competitive salary, bonus scheme, and pension are essential for any work agreement. However, at SimCorp, we believe we can offer more. Therefore, in addition to the traditional benefit scheme, we provide an excellent work & life balance: flexible work hours, a hybrid workplace model. On top of that, we have IP sprints where you have 3 weeks per quarter you can spend on mastering your skills as well as contributing to the company development. There is never just only one route - 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.

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