Own the design, development, and maintenance of our .NET microservices (authentication, booking, payments, consultations..etc) Lead a refactoring effort on existing services reducing oversized classes, improving separation of concerns within a Clean Architecture layout, and paying down technical debt safely Harden security: per-service JWT signing keys, secrets management via AWS Secrets Manager / SSM, auth flow correctness, and remediation of findings from a recent security audit Design and evolve data models with Entity Framework Core and SQL Server, including migrations Build and maintain integrations: payment gateways (Stripe, PayPal), real-time video , push notifications, and inter-service APIs Grow automated test coverage (unit and integration) and strengthen the GitHub Actions CI/CD pipelines Operate services on AWS (App Runner, RDS, S3, SQS) deployments, observability, and incident response Collaborate with the frontend (React) and mobile (Flutter) teams on API contracts What we're looking for Required 4+ years of backend engineering, with strong C# and .NET (.NET 8 / 9 / 10) Deep ASP.NET Core experience, including Minimal APIs Strong Entity Framework Core and SQL Server schema design, migrations, query performance JWT-based authentication / authorization, ideally across multiple services Hands-on AWS App Runner (or ECS / containers), RDS, S3, SQS, Secrets Manager Experience with microservices and a layered / Clean Architecture approach Comfortable writing automated tests and working with CI/CD pipelines Solid understanding of application security fundamentals