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# Senior .NET Developer (Fintech)

- **Company:** Social Discovery Group
- **Location:** France (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Artificial Intelligence, Microsoft SQL Server, MongoDB, Cosmos DB, Azure AKS
- **Published:** November 1, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=b52ad98f381ed865

## About the Role

* 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.

## Description

* 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.