.NET/React Engineer
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Senior Full Stack Engineer (.NET Core / React) - Long-Term B2B Contract, Remote-First (Europe) We're partnering with a global enterprise organisation on a major modernization initiative for a large-scale fleet management platform. They're looking for Senior Full Stack Engineers who combine strong .NET Core and React/TypeScript expertise with a genuine, hands-on fluency in AI-assisted development tools. This is a long-term, remote-first contract, ideal for an engineer who thinks like a consultant, writes production-grade code, and is comfortable decomposing a large legacy platform into a modern, microservices-based architecture.
What You'll Be Doing:
- Developing and maintaining backend services using .NET, C# and ASP.NET Core
- Building and optimizing React/TypeScript frontends within a microfrontend architecture
- Supporting the modernization and modular decomposition of a large enterprise platform
- Deploying and orchestrating services using Docker and Kubernetes
- Working across MS SQL, NoSQL and Redis data stores
- Implementing OAuth2 and JWT based authentication
- Partnering with DevOps to build and maintain CI/CD pipelines
- Applying OWASP-aligned security practices across the stack
- Working within Azure, including App Service, Service Bus, Functions and SQL Database
- Core Technical Skills
- Backend, .NET (Core), C#, ASP.NET Core, Entity Framework Core
- Frontend, React/TypeScript, Microfrontends
- Architecture, Microservices, CQRS, Dependency Injection
- Databases, CosmosDBCloud & DevOps, Azure (App Service, Functions, Service Bus, SQL Database), Docker, Kubernetes, GitHub, CI/CDTesting & Debugging, xUnit/NUnit, profiling tools, static code analysis, Postman, FiddlerAI Tooling Fluency
- Practical, day-to-day experience with AI-assisted engineering tools is a must, including any of the following:
- CursorClaude CodeGitHub Copilot or equivalent
- Soft SkillsStrong analytical and problem-solving ability, comfortable diagnosing complex issues under pressure
- Excellent communication skills, able to bridge technical and non-technical stakeholders
- Ownership mindset, able to work independently while taking full accountability for delivery
- Proactive attitude, quick to flag blockers and support the wider team
- Open to giving and receiving constructive feedback
- Preferred Experience
- Azure DevOps for CI/CDBroader AI development experience beyond tooling fluency
- Strong grasp of design patterns and software architecture principles
- Work Conditions
- Long-term B2B Contract, Remote-first, based in Europe, with occasional travel for in-person workshops
- Required overlap with US hours, 2pm to 6pm CETContracted via a European entity
- Start date, ASAP