Front End Software Engineer

Front End Software Engineer

Location:

Farnborough, with flexibility to work from home as required by business demands.

The Software Engineer will play a critical role in both sustaining the current user‑facing environment and delivering new capabilities. The role requires creative problem solving and hands‑on development as a senior individual contributor.

• Deliver high‑quality, production‑ready front‑end software through hands‑on development.
• Design, implement, test, document, and deploy modern single‑page applications
  .
• Lead front‑end implementation using React and Type Script .
• Apply strong front‑end engineering practices to ensure solutions are maintainable, modular, well‑structured, and aligned with agreed standards.
• Make front‑end technical recommendations within assigned scope, aligning with agreed architectural direction and escalating broader decisions as appropriate.
• Ensure adherence to established code review standards and quality gates for all front‑end changes delivered.
• Continuously validate and maintain front‑end build and deployment pipelines
  :
  • Ensure changes do not break build, test, or deployment stages.
  • Make improvements as necessary to support reliable front‑end delivery.
  • Act as a guide for other developers to ensure pipeline practices are understood and maintained.
• Write and maintain unit and integration tests as a standard part of development.
• Support and contribute to UI and API test automation efforts, working closely with the test team.
• Collaborate closely with backend engineers to ensure clean separation of concerns and well‑defined API contracts.
• Support Agile delivery practices, including planning, estimation, backlog refinement, and iterative delivery.
• Use and support development tooling and processes, including CI/CD pipelines and integrated security scanning.
• Mentor and guide other front‑end engineers through code reviews, pairing, and informal technical coaching.
• Act as a senior technical point of reference for complex UI and front‑end engineering challenges.

• Significant front‑end engineering experience delivering production‑grade single‑page applications.
• Modern SPA development experience (required) using React and Type Script ,
  Angular
  , or Vue
  .
• Strong understanding of SPA design patterns and best practices
  , including component composition, state management approaches, and modular UI architecture.
• Proven experience delivering complex UI changes in production environments.
• Demonstrated experience writing unit and integration tests as a normal part of front‑end development.
• Familiarity with Agile software development processes and working within iterative delivery models.
• Familiarity with the Atlassian tool suite (e.g. Jira, Bitbucket, Bamboo), or equivalent tooling, with a solid understanding of CI/CD concepts, workflows, and practices
  .
• Experience working with code review standards
  , quality gates
  , CI/CD pipelines
  , and security scanning processes.

• Experience working closely with backend teams on API‑driven architectures.
• Familiarity with broader software design patterns beyond the front‑end domain.
• Experience contributing to or supporting test automation initiatives (UI and/or API).
• Exposure to scripting languages (e.g. Python, bash) in support of tooling or build processes.

Due to the nature of the project, this role will require holding or obtaining UK SC clearance
.

£61,500.00 – £78,800.00 per annum.

• Contributory Pension Scheme.
• Private Medical Insurance.
• 33 days Annual Leave (including public and privilege holidays).
• Access to Flexible benefits (life assurance, health schemes, gym memberships, annual buy and sell holidays, and a cycle to work scheme).
• Flexi‑Time Working.

We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages, please let us know, and we will respond in a way that best fits your needs.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.