City of London, London
Junior Software Engineer
Posted on Wednesday, 18th March 2026
IT
City of London, London
Negotiable
Contract
Job Title: Junior Software Engineer (Contract) – Java / Spring / React
Location: 1-2 days per week on site in London
Contract Length: 6 months
Day Rate: £150 – £350 per day, Inside IR35
A Central Government client of iO’s are seeking a Junior Software Engineer on a contract basis to support development of modern web applications using Java, Spring, and React. You’ll work with an experienced team contributing to both backend services and frontend features.
Essential Skills & Experience:
- Commercial or project experience with Java
- Basic knowledge of Spring/Spring Boot
- Experience with React or similar frontend frameworks
- Understanding of REST APIs and Git
- Strong willingness to learn and take on feedback
