About this role
Senior Backend Developer (Card Payment Systems) at Roofstacks. Location: Istanbul, Turkey. Role: build, integrate, optimize Requirements: 5+ years in software development; strong C# and .NET; SQL/PL-SQL; banking/fintech experience preferred. Category: Software Development Seniority: Senior Level Tools: C#, .NET Core, SQL, PL-SQL, Oracle, RESTful API, OAuth2, OpenID Connect, JWT/JWS, 3DS, ISO 8583, TCP/IP, EMV, Webhooks, JSON Commitment: Full Time Workplace: Hybrid Languages: English