Back-end Engineer (Trading Infrastructure)

Senior backend engineer with 5+ years of experience building production systems C1 English level or higher Proven production experience integrating trading platform APIs (Rithmic/R|API+, Tradovate, Ignite, cTrader, MetaTrader, CQG, or similar) Strong C# for backend service development Expert-level REST API consumption: pagination, retry logic with exponential backoff, rate limiting, token management Production webhook implementation with signature verification (Ed25519 or HMAC) and idempotent event processing Robust error handling, monitoring, and failover system design for high-stakes financial environments Advanced SQL skills (PostgreSQL preferred) including cross-table data integrity debugging Skills C# .NET REST API PostgreSQL Webhook security Ed25519 HMAC Trading platform APIs Rithmic R|API+ cTrader... Para postular, visita la oferta original en GetOnBoard.