Front-end Software Engineer (Typescript) in Fareham, Hampshire

Front End Software EngineerLocation: Farnborough or Whiteley, with flexibility to work from home dependent on business demands)The Software Engineer will play a critical role in both the sustainment of the current environment and the delivery of new user‑facing capabilities. As a Software Engineer in Leidos, you will be immersed in one of our key programmes. On behalf of our central government customer, you will have direct impact on the current and future iterations of one of our most important pieces of critical national infrastructure.The individual will be a highly experienced front‑end engineer who leads through hands‑on development, supports technical decision‑making within their scope, and raises overall team capability through mentoring and technical guidance. Overall approach and architectural direction are agreed collaboratively with the Technical Lead and Software Architect.Key ResponsibilitiesDeliver high‑quality, production‑ready front‑end software through hands‑on development.Lead front‑end implementation using React and TypeScript.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 stagesMake improvements as necessary to support reliable front‑end deliveryAct as a guide for other developers to ensure pipeline practices are understood and maintainedWrite and maintain unit and integration tests as a standard part of development.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.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.Key Skills (Required)JavaSignificant front‑end engineering experience delivering production‑grade single‑page applications.Modern SPA development experience (required) using React and TypeScript, Angular, or Vue.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.Experience working with code review standards, quality gates, CI/CD pipelines, and security scanning processes.Familiarity with broader software design patterns beyond the front‑end domain.Exposure to scripting languages (e.g. Python, bash) in support of tooling or build processes.Clearance RequiredDue to the nature of the project, this role will require holding or obtaining UK SC clearance.At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance.We provide an employment package that attracts, develops and retains only the best in talent. Contributory Pension Scheme• Private Medical Insurance• 33 days Annual Leave (including public and privilege holidays)• Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme)• Flexi-Time WorkingCommitment to Diversity:We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. 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.Who We Are:Leidos UK & EUROPE- we work to make the world safer, healthier, and more efficient through technology, engineering and science.Leidos is agrowing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation.What Makes Us Different:Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future.Pay Range:61,500.00-78,800.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.Whiteley, Hampshire, UKType: Full time