Senior Software Engineer (Node.js)

Company: Cyberteam
Apply for the Senior Software Engineer (Node.js)
Location: London
Job Description:

Title: Senior Software Engineer (Node.js)

Location: Westminster, London OR Leeds (Hybrid)

Working: 40% onsite

Clearance: Active SC Clearance

Our client is a UK public-sector organisation undergoing significant digital transformation, with an expanding Digital, Data & Technology function. They are seeking a Senior Software Engineer to develop modern digital services and help deliver scalable, secure and user-focused technology solutions.

The Role

You’ll work alongside technical leads, senior stakeholders, product managers and other engineers to develop Node.js applications, APIs, microservices and serverless solutions. You’ll play a key role in technical delivery, ensuring solutions are scalable, maintainable and aligned with security and engineering best practices.

Key Skills

  • Strong commercial experience with Node.js
  • Experience with Express.js and/or Nest.js
  • Experience developing and integrating REST APIs
  • Experience with microservices and serverless applications
  • Experience developing and maintaining CI/CD pipelines
  • Strong understanding of application scalability, security and maintainability
  • Experience with unit and integration testing
  • Experience integrating applications with third-party systems, APIs and webhooks
  • Strong understanding of secure software development and data protection
  • Strong technical documentation and communication skills
  • Ability to work effectively with senior stakeholders, product teams and engineers
  • SC Clearance or eligibility to obtain clearance

What’s on offer?

  • Senior role within an established UK public-sector organisation
  • Hybrid working from Westminster or Leeds
  • Full-time or flexible working arrangements
  • Opportunity to work on high-impact digital transformation projects
  • Work with modern Node.js, API, microservices and cloud technologies
  • Collaborative Digital, Data & Technology environment
  • Opportunity to contribute to technical strategy and engineering standards
  • Meaningful work supporting the delivery of improved public-facing digital services

This is an excellent opportunity for a Senior Software Engineer looking to work on modern digital services, solve complex technical challenges and contribute to large-scale transformation within a high-profile UK public-sector environment.

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Posted: September 25th, 2026