Senior FullStack .NET Developer

• Building and maintaining applications and services using C# and modern .NET
• Designing and developing REST APIs
• Developing frontend functionality using React
• Helping modernise an established application architecture
• Improving automated test coverage and overall code quality
• Working in a test-first development environment
• Contributing to software design and architecture decisions
• Improving platform maintainability, scalability and long-term technical direction
• Supporting existing systems while helping build their future replacement

• REST APIs
• React
• SQL Server
• Automated testing
• TDD
• CI/CD
• Cloud technologies

There is also some exposure to established desktop WinForms technologies within the existing platform, although previous experience in this area is not essential.

Essential Skills:

• Strong C#/.NET
• React
• TDD
• REST APIs
• CI/CD knowledge
• Experience contributing to architecture / design and technical decisions
• Ability to work independently and take ownership of technical problems

Experience with cloud platforms, legacy application modernisation or AI-assisted development would be useful., * C#

• TDD
• AWS
• AI
• CI/CD
• AZURE
• REACT
• TEST DRIVEN DEVELOPMENT

The process will involve an initial video call which will be a technical discussion, followed by a final-stage video interview including a practical coding element following TDD.

Package

Salary up to £70,000, plus pension, holiday allowance and additional employee benefits.

Avanti is working with an established software business that is investing heavily in the modernisation of one of it’s core platforms and is looking for a Senior Fullstack .NET Developer with strong experience in React.

This is a hands-on engineering role where you’ll help evolve an established business-critical application into a more modern, scalable architecture.

The focus will be on improving the underlying platform, building modern services and APIs, increasing automated test coverage and gradually moving functionality towards a modern web-based frontend.

You’ll remain very hands-on with C#/.NET development while also contributing to software design, architecture and technical decisions across the wider engineering team.

The business places a strong emphasis on the engineering quality, automated testing and test-first development, so strong TDD experience is essential.