Senior Full-Stack Software Engineer

Competitive Day Rate | Inside IR35 | Initial 6-Month Contract | London
Global Financial Markets Technology

An exciting opportunity has arisen for a Senior Full-Stack Software Engineer to join a globally distributed Derivatives Clearing technology team within a leading financial markets organisation.

Working within a high-performing engineering environment, you will contribute to the design, development and optimisation of software solutions that support critical clearing and post-trade business functions. The role offers the opportunity to work across the full software development lifecycle, influence technical design decisions, and help deliver scalable, secure and resilient applications.

Key Responsibilities

• Design and develop scalable full-stack applications using modern technologies and engineering best practices.
• Participate in requirements gathering, solution design and architecture discussions.
• Build, maintain and enhance both front-end applications and back-end services.
• Collaborate with globally distributed teams to deliver high-quality software solutions.
• Drive improvements in software design, code quality and development standards.
• Contribute to integration testing, UAT and production-ready releases.
• Support the adoption of CI/CD, automation and low-touch deployment practices.
• Work closely with architecture, engineering and support teams to ensure robust, secure and reliable delivery.

Required Skills & Experience

• Strong experience delivering full-stack software solutions in enterprise environments.
• Commercial experience with:
  • Java
  • TypeScript / JavaScript
  • SQL databases, including MS SQL Server
  • Angular (React experience also considered)
• Experience building and integrating front-end applications with backend services.
• Strong analytical and problem-solving skills.
• Experience working within Agile delivery environments using tools such as Jira, Bitbucket and Jenkins.
• Knowledge of secure coding practices and modern architectural patterns.
• Experience collaborating with distributed development teams.

Desirable Experience

• Microservices architecture.
• Docker and Kubernetes.
• DevOps, CI/CD and automated deployment practices.
• Architecture and solution design exposure.
• Financial markets experience, particularly within:
  • Clearing
  • Settlement
  • Trade Lifecycle Management
  • Asset Servicing
  • Post-Trade Processing