.Net Fullstack Engineer
CoforgePoland14 hours ago
Full-timeRemote FriendlyEngineering
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Role : .Net Fullstack Engineer
Location : Krakow/ Warsaw Hybrid 2 days Office / 3 days Remote
Type : B2b /Employment contract
Roles and Responsibilities
- Design and implement backend services and APIs in .NET (6/8) with clean architecture.
- Build and maintain React + TypeScript frontends and incremental migrations from legacy UI.
- Read, refactor and extract business logic from legacy .NET and T‑SQL (stored procedures).
- Write and maintain automated tests: unit, integration, contract and e2e.
- Create and maintain CI/CD pipelines (Azure DevOps / GitHub Actions) and IaC artifacts.
- Instrument services for observability (metrics, logs, distributed traces) and alerting.
- Troubleshoot production incidents, deliver fixes and support deployments.
- Participate in architecture and domain modelling activities (DDD patterns, bounded contexts).
- Collaborate in Agile ceremonies, estimate work and define acceptance criteria.
Skills & Experience Requirement
- 5+ years commercial experience with C# and .NET (Framework + .NET Core / .NET 6+).
- Strong experience with EF Core and MSSQL (query tuning, transactions, indexing).
- Production experience with React and TypeScript.
- Practical experience building and securing REST APIs (validation, versioning, auth).
- Familiarity with Azure services (App Service, Functions, Azure SQL, Storage, Service Bus).
- CI/CD and automated testing experience (xUnit, Jest, Playwright/Cypress).
- Observability knowledge (Application Insights / OpenTelemetry, structured logging).
- Ability to read and reason about legacy codebases (ASP.NET MVC, Razor, WPF, WinForms).
- Good Git practices and code review discipline.
- English for technical communication
Nice To Have
- IaC experience (Terraform, Bicep) and deployment automation.
- Docker and Kubernetes (AKS) experience.
- Playwright codegen or Cypress e2e automation experience.
- Background in migrating monoliths to modular services or microservices.
- Familiarity with SQL Server internals and performance profiling.
- Azure certifications (e.g., Azure Developer Associate).
Key Skills
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