Back-end & Infra Developer

Location: London (Hybrid, 3 days onsite per week)

Rate: Up to £700 per day (Inside IR35)

Duration: 5+ months

We are seeking a skilled Back-end & Infrastructure Developer with expertise in Java and Node.js/TypeScript to join our development team on a contract basis. You will play a key role in maintaining and enhancing Back End systems, supporting infrastructure needs, and refactoring existing Node.js codebases to Java as part of a strategic platform alignment.

This is an excellent opportunity to work on a high-impact project within a collaborative environment, without requiring prior banking industry experience.

Key Responsibilities

• Maintain and develop scalable Back End applications using Java, Node.js and TypeScript.
• Lead the migration of Node.js applications to Java to align with infrastructure strategy.
• Work closely with centralised DevOps teams to manage pipeline deployments and system monitoring.
• Implement and maintain CI/CD pipelines using GitHub Actions and related tools.
• Utilize Docker and Kubernetes for containerisation and efficient workflows.
• Monitor system performance, uptime, and certificates.
• Write comprehensive unit and integration tests to ensure reliability and quality.
• Collaborate with cross-functional teams to deliver new features under tight deadlines.

Requirements

• 5+ years' experience in Java and Node.js/TypeScript development.
• Strong understanding of containerisation (Docker, Kubernetes).
• Hands-on experience with CI/CD pipelines, particularly GitHub Actions.
• Solid SQL database knowledge.
• Strong problem-solving and teamwork skills.
• Ability to deliver high-quality solutions within tight deadlines.

Nice-to-Have

• Experience with Snowflake.
• Experience designing APIs with GraphQL.

This role offers the chance to contribute to a major codebase refactor and infrastructure project, working in a hybrid setup with three days per week in London.

Apply now to be considered for this high-profile contract.