.NET Backend Developer (d/w/m)

We're currently looking for a talented engineer to join the Trading Analytics team on a fully remote contract running ASAP until May 2026 (with possible extension). The focus is on modernizing and migrating internal custom-built applications from an on-premise setup to a cloud-native environment using a modern tech stack. Role Overview Position: Backend Engineer (.NET, Cloud-Native) Start Date: ASAP Duration: Until May 2026 (extension possible) Location: Fully Remote Team: Trading Analytics Scope: Migration of on-premise applications to the cloud Daily Focus * Build/refactor services in .NET (Core/ASP.NET Core) using gRPC and REST * Containerize and deploy on Kubernetes * Integrate with CI/CD pipelines * Work with PostgreSQL for data persistence Tech Stack & Skills * .NET 8+: async/await, DI, minimal APIs, IAsyncEnumerable, cancellation tokens, IOptions * API Design: gRPC (proto, streaming, interceptors), REST (OpenAPI, pagination, versioning) * Performance & Resilience: Polly, Redis, latency optimization * AuthN/AuthZ: OAuth 2.0, JWT, mTLS, RBAC/ABAC * PostgreSQL: schema design, indexing, EXPLAIN ANALYZE, Flyway/Liquibase * Containerization: Docker, distroless images, SBOM/CVE scanning * Kubernetes: Deployments, Ingress, HPA, ConfigMaps, Secrets * Observability: OpenTelemetry, structured logging, metrics, tracing * Testing: Unit, integration (Testcontainers), contract testing (Pact), load testing Nice-to-Haves * Kafka/RabbitMQ, outbox pattern, CQRS, DDD/hexagonal architecture * Protobuf & OpenAPI versioning SThree_Germany is acting as an Employment Business in relation to this vacancy.