About The RoleSoficopharm's platform is a healthcare product connecting patients and doctors — appointment booking, video consultations, prescriptions, and payments — built as a set of .NET microservices with a React doctor portal and a Flutter patient app.We're hiring a Senior Backend Engineer to own and mature our .NET services. You'll be the technical owner of three core backend microservices (Doctor Auth, Patient Auth, Patient Booking) and future services , driving a hardening-and-refactoring effort: closing security findings, raising test coverage, tightening CI/CD, and keeping the services healthy as the platform scales. This is a hands-on ownership role with real architectural influence — not a ticket-taking position.What You'll Do 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 contractsRequirementsWhat we're looking forRequired 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 fundamentalsNice to have Payment gateway integrations (Stripe / PayPal) Real-time / video SDKs (Agora or similar) Healthcare or other regulated / compliance-driven domains Docker and Linux container deploymentsTech stackAreaTechnologyLanguage / runtime C#, .NET 10, ASP.NET Core 10 (Minimal APIs)DataEF Core 10, SQL Server (AWS RDS), ASP.NET Core IdentityAuthJWT Bearer, Google OAuthLibrariesFluentValidation, AutoMapper, Refit, Serilog, Swashbuckle / SwaggerIntegrationsStripe, PayPal, Agora (video), Firebase (push)CloudAWS — App Runner, RDS, S3, SQS, CloudFront, Secrets ManagerTestingMSTest, Moq, EF Core InMemoryToolingGitHub Actions CI/CD, GitArchitectureMicroservices, Clean Architecture, Repository + Unit of WorkWhat We Offer Competitive Egyptian-market compensation (negotiable based on experience) Medical insurance and standard benefits Sun-Thu work week, Cairo time zone Technical ownership of a production .NET platform serving real patients and doctors Modern stack and a recently-ratified engineering plan with leadership backing