Senior .NET Developer

Position: Senior .NET Developer (Cards & Payments) Credo Bank is a strong and stable financial institution with a 29-years history. The bank provides continuous services and operates across Georgia with nearly 100 branches. Credo Bank’s mission is to support Georgian entrepreneurs, their employees, and family members in creating a better future by offering accessible financial services. About the Role We are looking for an experienced Senior .NET Developer to join our team and work on mission-critical systems in the Cards & Payments domain. You will design, develop, and optimize high-load financial services with a strong focus on reliability, security, and performance. Key Responsibilities Design and develop scalable backend services using .NET (Core / .NET 6+) Build and maintain systems for card processing and payment transactions Integrate with external payment providers and banking systems Work with high-load distributed systems and ensure fault tolerance Implement secure coding practices in compliance with PCI DSS and financial regulations Ensure proper handling of sensitive data (encryption, masking, tokenization) Optimize database performance (SQL Server, PostgreSQL, etc.) Participate in system architecture and technical design Conduct code reviews and mentor team members Collaborate with QA, DevOps, and Product teams Requirements Strong experience with ASP.NET Core, Web API, microservices architecture 5+ years of experience with .NET / C# Experience in Cards & Payments domain (issuing, acquiring, transaction processing) Solid understanding of payment flows (authorization, clearing, settlement) Strong understanding of secure coding and data protection practices (PCI DSS) Strong knowledge of relational databases and performance tuning Understanding of authentication and authorization (OAuth, JWT) Experience integrating with external APIs Strong problem-solving skills and ability to work in a fast-paced environment Nice to Have Experience with ISO 8583 or similar financial messaging protocols Experience building high-availability and fault-tolerant systems Knowledge of Docker / Kubernetes Experience with event-driven architecture Experience with reconciliation, dispute handling, or 3-D Secure flows Vacancy application deadline: July 24, 2026