Java Developer - GCP, API Development, Redesign

Java Developer – GCP – API Development – Platform Redesign – InsideIR35 – Hybrid

We\’re looking for a Java Developer with strong API development expertise to join a high-impact transformation programme. This role is central to a major replatforming initiative, where legacy applications built on the Kony platform and JavaScript are being modernised into a React-based architecture to deliver a brand-new customer experience .

You\’ll be responsible for building and optimising the APIs that power the redesigned front end, ensuring seamless integration, performance, and scalability.

Candidates must be Immediately available to start in the next 2 weeks – Interviews to be scheduled next week.

Key Responsibilities

• Design, develop, and maintain robust, scalable APIs in Java to support the new React front-end.
• Collaborate closely with front-end developers, architects, and product teams to align API functionality with UI/UX goals.
• Refactor and modernise existing back-end services to align with the new architecture.
• Ensure high performance, security, and reliability of API endpoints.
• Participate in code reviews, testing, and continuous integration processes.

Skills & Experience

• Strong commercial experience in Java (8+) and RESTful API development .
• Google Cloud Platform – GCP – ESSENTIAL
• Proven track record of supporting front-end refactoring or replatforming projects .
• Experience working with modern JavaScript frameworks , ideally React (collaboratively).
• Familiarity with legacy platform migration
• Solid understanding of microservices architecture , API gateways , and integration patterns .
• Experience with Agile methodologies , CI/CD pipelines, and version control (Git).

Why Join?

• Be part of a strategic digital transformation that will redefine customer experience.
• Work in a collaborative, forward-thinking team with a strong engineering culture.
• Opportunity to influence architecture and best practices in a greenfield environment.

Java Developer – GCP – API Development – Platform Redesign – InsideIR35 – Hybrid

Desired Skills and Experience

Strong commercial experience in Java (8+) and RESTful API development.
Proven track record of supporting front-end refactoring or replatforming projects.
Experience working with modern JavaScript frameworks, ideally React (collaboratively).
Familiarity with legacy platform migration