Senior Software Engineer (.NET)

Looking for a role where engineering quality matters and your work goes straight into a mission‑critical trading flow?

For one of our clients in the capital markets sector, we’re hiring a Senior Software Engineer to build and evolve a high‑volume trade management platform. You’ll work on distributed systems, multithreading and AWS serverless components, in close collaboration with global teams. If you like greenfield projects, it’s a perfect opportunity for you!

Location: Warsaw (Śródmieście), hybrid mode (3 days a week in the office).

Contract: employment contract.

Your duties will include:

• Designing, building, and maintaining high-throughput trade flow processing services (multithreaded, distributed)
• End-to-end ownership: development, testing, deployment and production stability (incl. second-line support)
• Making technical decisions, assessing risk, and continuously improving reliability/performance
• Collaborating with engineers across the globe to deliver robust releases

Your skills & experience:

• Min. 5 years of experience in software engineering
• Proficiency with .NET and C#
• Hands-on experience in serverless environments (preferably AWS or Azure)
• very good English (B2/C1)

Tech stack:

• .NET Core
• C#
• Kafka
• AWS

Benefits:

• yearly bonus
• medical insurance
• life insurance
• MultiSport Card
• lunch card