Senior .NET Developer (Fintech)
Quick Summary
Social Discovery Group (SDG) is a group of social discovery companies. SDG solves the problems of loneliness, isolation, and disconnection - transforming virtual intimacy into the new normal.
Social Discovery Group (SDG) is a group of social discovery companies. SDG solves the problems of loneliness, isolation, and disconnection - transforming virtual intimacy into the new normal. SDG’s products redefine the way people interact and connect with one another.
Our portfolio includes social entertainment platforms designed to connect people online across different cultures and regions of the world.
We bring together a team of like-minded people and IT professionals who specialize in creating and developing globally impactful social discovery products. Our international team of digital nomads works remotely from all over the world.
We’re proud to be a two-time “Great Place to Work” winner (USA & Japan, 2024–2025) and a Top-5 Company for Work-From-Anywhere Jobs (FlexJobs, 2025).
We are looking for a Senior .NET Developer (Fintech).
- Develop and maintain backend services for payment processing and the back office: reconciliation, payouts, fee calculation, settlements and the B2B client dashboard;
- Build resilient integrations and asynchronous workflows (idempotency, outbox/inbox, sagas, retries, deduplication);
- Meet performance and reliability targets (p95/p99 latency, SLA/SLO), set up monitoring and alerting;
- Deliver tasks with AI agents, validate the generated code, add tests and fix defects;
- Review code, keep specifications up to date and share knowledge with the team.
- 5+ years of commercial experience with C# and ASP.NET Core;
- Experience designing microservices;
- Hands-on experience with Azure, Docker, AKS, MS SQL Server, MongoDB and Cosmos DB;
- Real experience delivering tasks with AI tools or agents from task definition to a working result. You understand every line you ship and can explain it;
- Clean, maintainable code with tests;
- Ownership of results and open communication when something goes wrong;
Nice to have: payments or banking background, spec-driven development, product or startup experience, mentoring or technical leadership.
What We Offer
~1 min readLocation & Eligibility
About this job
- Pay per year
- €2,800 a year
- Who can apply
- Poland
- Posted
- Today
Listing Details
- First seen
- October 30, 2026
- Last seen
- October 30, 2026
Posting Health
- Days active
- 0
- Repost count
- 1
- Trust Level
- 73%
- Scored at
- October 30, 2026
Signal breakdown
Social Discovery Group is a global tech company and investment firm focused on solving loneliness and isolation through social discovery platforms, AI, and game mechanics.
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