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.