Senior Back-end Engineer
On-site · Chisinau, Chișinău Municipality, Moldova
Job Summary
Senior Backend Engineer responsible for owning backend workstreams including new third-party feed integrations and a service-layer refactor. Design and build integrations with external providers and data services, implement API endpoints (REST or SignalR), publish and own endpoint specifications, diagnose and resolve defects, and contribute to security, reliability, and observability. Work within a layered architecture (Controller Service Domain Repository) with an emphasis on scalable, low-latency real-time processing. Required hands-on experience with C# on ASP.NET Core, Redis pub/sub, SignalR hubs, Bearer authentication, external HTTP API integrations, and stored procedures (Azure SQL/T-SQL). Strong collaboration with architects and PMs, and fluent English.
Required Qualifications
- 5+ years of experience writing layered C# on ASP.NET Core
- Production experience with Redis pub/sub fan-out patterns
- Hands-on experience with SignalR hubs (GameHub / LobbyHub) and group-based message broadcasting
- Experience designing and shipping integrations with external HTTP APIs using custom authentication schemes
- Experience with latency-sensitive real-time delivery or high-throughput messaging systems
- Ability to read/write stored-procedure-driven schemas (Azure SQL / T-SQL)
- Experience designing well-documented, versioned APIs and integrations
- Fluent English
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