Role summary by JobGrid
Senior C# Developer with Fintech experience at margo-group: Warsaw, Poland; On-site; IT; Back End Engineer. JobGrid adds normalized role facts, source context, and a path to the employer application page so candidates can compare the listing before applying.
- Location and workplace: Warsaw, Poland, On-site
- Role classification: IT, Back End Engineer
- Source freshness: checked by JobGrid on 2026-05-30.
- Application path: candidates continue to the employer application page with non-personal referral tags.
On behalf of our client – a global financial institution – we are looking for an experienced specialist for the position of Senior C# Developer.
ABOUT THE PROJECT & TEAM: You will join a distributed, international team responsible for the development of core systems in the areas of XVA, Liquidity, and Financial Resource Management. The project is currently at an exciting turning point – migrating to a modern, highly advanced event-driven architecture on the back-end side. The developed UI tools support the daily operations of hundreds of users in a dynamic market environment. We work in a collaborative, agile environment with a strong emphasis on clean code and software craftsmanship.
💡 CONDUCT & ATTITUDE EXPECTATIONS:
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High autonomy combined with excellent teamwork skills.
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Excellent communication, analytical, and organisational skills.
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Attention to detail (especially under time pressure).
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Proactive, flexible approach to daily engineering challenges.
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Motivation to work directly with front-office IT.
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Integrity and discipline.
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Role model supporting a culture of good conduct.
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Proactivity, transparency, and accountability in managing conduct risks.
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Considering the impact of decisions on colleagues, partners, and clients; escalation in case of doubts.