Senior .NET Engineer

Warsaw • Kraków • Gdańsk • Łódź • Wrocław | Hybrid within Poland

Join our .NET practice at Vention

We’re hiring experienced .NET engineers to strengthen two strategic projects — one in fintech, the other in enterprise SaaS. These roles offer the opportunity to work in mature engineering environments, where clean code, architectural thinking, and collaboration with seasoned peers are part of everyday work. If you're looking for long-term development and real impact, you’ll feel at home here!

Who We Are

Vention powers the world’s leading tech companies to innovate fast and scale thoughtfully with top-tier engineering teams — and we’ve got the numbers to back it up:

→ 20+ years in the market

→ 550+ clients across 30+ industries

→ 3,000+ engineers in 20+ global offices (largest delivery hub in Poland)

→ Diverse client portfolio: Fortune 500s and fast-moving startups

→ $15B+ in client acquisitions

→ 10+ unicorns and 20+ IPOs supported

→ 6× Inc. 5000 honoree | 5× Financial Times Fastest Growing Companies

Projects

FinTech (Senior .NET) – Europe’s no. 1 player in its niche, processing 332 M transactions yearly. Engineering culture built on domain-driven, event-driven and test-driven development with pair programming.

Procurement SaaS (Tech Lead) – Cloud procurement pioneer consolidating several large B2B systems into one platform.

What you will do?

→ Deliver high-quality C# (.NET Core / .NET Framework) code to production

→ Own the full SDLC: estimation, design, implementation, tests, release

→ Take part in daily Scrum ceremonies, demo sessions and Idea Talks

→ Run code reviews; champion clean architecture and DDD practices

→ Contribute to pre-sales, technical interviews or mentoring (if you wish)

Whom do we seek?

→ At least 4 years of practical experience with .NET

→ Proficiency in C# (.NET Core & .NET Framework)

→ Understanding of clean code principles, microservices architecture, and DDD

→ Familiarity with MS SQL, Redis, and MongoDB

→ Familiarity with CI/CD processes, Docker, Kubernetes, Azure DevOps, and Microsoft Azure

Cloud

→ B2 level of English or higher, with experience communicating with English-speaking customers

→ A strong desire to improve skills and stay updated on the latest technological advances in .NET development

📌 What’s in it for you?

→ You’ll join an international team of experienced engineers. Since we truly operate as one team, you’ll have support from across all our countries.

→ We’re big on knowledge-sharing. Our international EDU community is exactly that — a group of 300 experts eager to both teach and learn. You’re welcome to contribute and grow in any direction.

→ You’ll be guided by experienced managers with strong hard and soft skills, ready to support you on your journey at Vention.

→ You'll become part of a team with well-established processes and strong values. We take pride in our culture, where every team member plays a meaningful role in the business.