Senior Backend Developer (.NET / Microservices)

We are looking for a Senior Backend Developer with strong system-level thinking, experience building complex distributed systems, and the ability to take full ownership of major features — from planning to production.In this role, you will design and develop Backend systems based on .NET and Microservices , including event-driven architectures and high-throughput workloads. You will collaborate closely with Developers, QA, and Product teams, while taking responsibility for performance, scalability, stability, and security. Responsibilities: Design, develop, and maintain complex Backend systems using .NET and Microservices Design and develop secure, scalable, and well-documented RESTful APIs (Swagger / OpenAPI) Work with Messaging and Event Streaming systems such as Kafka Write and maintain Unit Tests and Integration Tests Troubleshoot production issues, identify bottlenecks, and improve system performance Collaborate in an Agile / SCRUM environment Take ownership of features from design through production deployment

Requirements: Requirements: 5+ years of Backend development experience with .NET Hands-on experience with Microservices and distributed systems architecture Experience designing and developing RESTful APIs Experience working with Kafka or similar Event Bus technologies Experience with relational databases and ORM frameworks (e.g., Entity Framework) Experience with caching systems such as Redis Experience with Docker / Containers Mandatory: daily use of AI coding tools (Claude Code, Codex, Gemini CLI, etc.) Strong ownership mindset and ability to work independently Excellent cross-team communication skills Availability to work weekends / Shabbat during critical production incidents Willingness to use mobile phone communication and WhatsApp when needed Nice to Have: Experience working on High-Scale / High-Throughput systems Experience as a Scrum Master Work Model: Hybrid - 2 days in office, 3 days from home