Mission freelance Java API Developer - inside IR35

A Java API Developer is required initially until 31/12 2025 which will be extended. This is a hybrid role requiring 2 to 3 days per week on site in Knutsford and is inside IR35 so will require working via an FCSA accredited umbrella company.

Required Skills and Experience:

- Strong proficiency in Core Java programming with at least 5+ years of hands-on development experience
- Extensive experience with Spring Framework (Spring Boot, Spring MVC, Spring Security)
- Solid understanding of ORM frameworks, particularly Hibernate
- Experience working with relational databases (MySQL, PostgreSQL, Oracle, etc.)
- Familiarity with CI/CD pipelines and tools, specifically GitLab CI
- Demonstrated experience in production support environments, including L3 support and troubleshooting production issues
- Ability to analyse and resolve complex technical problems in live environments
- Experience with version control systems (Git)

Highly Valued Additional Skills:

- Experience with AI-powered coding tools such as GitLab Duo, GitHub Copilot, or similar AI coding assistants
- Knowledge of microservices architecture and RESTful API design
- Experience with containerization technologies (Docker, Kubernetes)
- Understanding of agile development methodologies
- Experience with test-driven development and automated testing frameworks

Responsibilities:

- Design, develop, and maintain Java-based applications using Spring and Hibernate
- Collaborate with cross-functional teams to define, design, and ship new features
- Optimize application performance and scalability
- Troubleshoot and resolve production issues as part of L3 support rotation
- Participate in code reviews and contribute to technical documentation
- Implement and maintain CI/CD pipelines using GitLab
- Ensure code quality, reliability, and security through best practices

Qualifications:

- Bachelor's degree in Computer Science, Engineering, or related field (or equivalent practical experience)
- Strong problem-solving skills and attention to detail
- Excellent communication and teamwork abilities


LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds.

Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.