Senior .NET Developer

We’re hiring an experienced Senior .NET Developer to help build and operate our platform. You’ll work on modular, high-quality services powered by .NET 8, CQRS, and robust integrations for auth, content, messaging, logging, and data.Role SummaryDesign, implement, and maintain .NET 8 services with a clean Controller → Validator → Handler → DB flow. Integrate Keycloak for authentication/authorization, Strapi for content, RabbitMQ/MassTransit for messaging, Graylog for centralized logging, and MySQL for persistence. Ensure reliability and testability with xUnit/Moq/AutoFixture/FluentAssertions. Manage background jobs with Hangfire and use Dapper where read-heavy performance matters. Run everything in Docker with environment-based configuration and proper reverse proxy/CORS/TLS handling.Key ResponsibilitiesBuild API, Command, and Query services in .NET 8 following a modular architecture.Implement CQRS with MediatR and FluentValidation; deliver create/update/read flows end-to-end.Develop typed HTTP clients using Refit to consume Strapi (REST/GraphQL), including webhook/lifecycle hook scenarios.Integrate Keycloak (OIDC/OAuth2, JWT) and enforce role-/claim-based access.Implement messaging with RabbitMQ/MassTransit, including durable queues, retry, and DLQ strategies.Ship structured application logs to Graylog and support stream/index setups.Create background jobs with Hangfire; apply Dapper where high-throughput reads are required.Deliver notification integrations (MailJet and Firebase) with robust retry/error handling.Write solid unit tests with xUnit, Moq, AutoFixture, and FluentAssertions; prefer in-memory/SQLite for isolated tests.Containerize services with Docker; manage env vars, reverse proxy, CORS, and TLS settings.Required Qualifications5+ years of enterprise experience with ASP.NET Core Web API and .NET 7/8.Hands-on CQRS, MediatR, FluentValidation, and a Controller → Validator → Handler workflow.Strong MySQL skills (schema design, migrations, indexing, query optimization); comfortable using Dapper where appropriate.Experience with Refit for typed HTTP clients and JSON/REST integrations.Practical Keycloak integration (OIDC/OAuth2, JWT) and role-based authorization.RabbitMQ/MassTransit proficiency (exchanges/queues/routing, retries, DLQ, durability).Experience sending structured logs to Graylog and working with service-level streams/indexes.Testing discipline with xUnit, Moq, AutoFixture, FluentAssertions.Docker-based development and basic ops (env management, reverse proxy, CORS, TLS).Nice to HaveProduction experience with Hangfire job scheduling.Experience with Strapi webhooks and lifecycle hooks to trigger business rules.Prior work on notification pipelines using MailJet and Firebase.How We WorkModular architecture from API Host → Service → Data/Infrastructure → Integration.Standardized request validation, handler logic, data access, and consistent error/response models.Observability baked in: logging, exception middleware, traceability, and versioned APIs where needed.CI-friendly, containerized development practices.