Lead FinTech Full-Stack Engineer - C#/.NET & Angular

SimCorp Sp. z o.o.; Warszawa; On-site; PLN 180,000 - 360,000; Full time

Job summary

SimCorp, a leading FinTech company, is looking for a Lead Full-Stack Software Engineer to steer technical direction across design, development and testing.

You will own test architecture, guide automation initiatives, and balance coding with coaching of engineers. The role collaborates with cross-functional teams to build scalable enterprise products for prestigious financial clients.

Qualifications

• Bachelor’s or master’s degree in computer science, Engineering, Mathematics, or a related field.
• 8+ years of experience.

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

Technical leadership

Test architecture

Automation mindset

Mentoring engineers

Cross-team collaboration

Education

Bachelor’s or Master’s in Computer Science/Engineering/Math

Tools

C#

Angular

APL

Job description

SimCorp, a leading FinTech company, is looking for a Lead Full-Stack Software Engineer to steer technical direction across design, development and testing.

You will own test architecture, guide automation initiatives, and balance coding with coaching of engineers. The role collaborates with cross-functional teams to build scalable enterprise products for prestigious financial clients.