Full Stack Software Engineer

We are seeking experienced Full Stack Software Engineers to join a large-scale enterprise delivery programme within the UK energy sector. The role focuses on building and enhancing a core enterprise platform that records, tracks, and manages operational work across the UK transmission network.

This is a hands-on contract position requiring strong experience across React/Next.js on the Front End, C#/ASP.NET Core on the Back End, and Azure cloud services, operating within a modern microservices architecture., * Develop Front End applications using React, Next.js, and TypeScript

• Build Back End services using C# and ASP.NET Core
• Design and implement RESTful APIs (GraphQL exposure beneficial)
• Contribute to microservices and event-driven architecture
• Implement authentication and authorisation best practices including Azure Entra
• Write unit, integration, and end-to-end tests using Jest, Playwright, and PACT
• Build and maintain CI/CD pipelines using GitHub Actions
• Work with Docker and containerisation tooling
• Apply Infrastructure as Code and modern DevOps practices
• Contribute to observability, monitoring, and alerting
• Participate in SAFe Agile delivery including quarterly PI planning
• Produce technical documentation including ADRs and API specifications
• Conduct code reviews and mentor team members

• Minimum 5 years commercial experience in full stack software engineering
• Strong React and/or Next.js Front End experience
• Strong C# and ASP.NET Core Back End development experience
• Experience working with Azure cloud services
• Practical experience with Docker and container-based deployments
• Experience building and maintaining CI/CD pipelines
• Experience building secure systems (authentication, authorisation, secure coding principles)
• Understanding of microservices architecture and REST APIs
• Experience working in Agile/SAFe delivery environments