Role: Senior Full Stack Engineer
London 1x a week
Rate: Up to £600 per day - Outside IR35
Length: 6 Months (Good chance of extension)
About the Role
We are seeking a Senior Java / React Full Stack Developer to join our client on a contract basis as a hands-on engineering consultant within a Solutions Engineering team.
This role centres on modernising large-scale, complex software systems, reducing technical debt, and improving delivery speed and reliability. You will work closely with client engineering teams, alongside platform and test engineers, helping to introduce modern development practices and AI-assisted engineering techniques to enhance productivity.
You will report to a Principal Software Engineer and play a key role in promoting and embedding best practices within delivery teams.
About You
You are an experienced, hands-on Java/React developer who enjoys working on complex systems and influencing how software is designed, built, and evolved.
You bring:
1. Strong experience with React and modern front-end development
2. Strong experience with Java backend development (Spring, MongoDB...