Front End Software Engineer

Front End Software Engineer

Location: Farnborough 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 userfacing capabilities. The selected individual will develop solutions to complex technical issues and problems that impact multiple areas or disciplines; regularly employ ingenuity and creativity to develop new technical solutions and systems to achieve functional objectives.

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.

This is a senior individual contributor role. The individual will be a highly experienced frontend engineer who leads through handson development supports technical decisionmaking 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 Responsibilities

• Deliver highquality productionready frontend software through handson development.
• Design implement test document and deploy modern singlepage applications.
• Lead frontend implementation using React and TypeScript.
• Apply strong frontend engineering practices to ensure solutions are maintainable modular wellstructured and aligned with agreed standards.
• Make frontend 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 frontend changes delivered.
• Continuously validate and maintain frontend build and deployment pipelines:
  • Ensure changes do not break build test or deployment stages
  • Make improvements as necessary to support reliable frontend 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 (who retain ownership of overall outcomes).
• Collaborate closely with backend engineers to ensure clean separation of concerns and welldefined 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 frontend engineers through code reviews pairing and informal technical coaching.
• Act as a senior technical point of reference for complex UI and frontend engineering challenges.

Key Skills (Required)

• Significant frontend engineering experience delivering productiongrade singlepage applications.
• Modern SPA development experience (required) using React and TypeScript 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 frontend 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.

Desirable Skills and Experience

• Experience working closely with backend teams on APIdriven architectures.
• Familiarity with broader software design patterns beyond the frontend 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.

Clearance Required

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

What we do for you:
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. Our reward scheme includes:
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 Working

Commitment to Diversity:

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.

Who We Are:

Leidos UK & EUROPE we work to make the worldsaferhealthier andmore efficient through technology engineering andscience.

Leidos is a growing 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. You can inspire change.

Collaboration: having flexibility to do your job is one of our core benefits enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. 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.

People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. 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.

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

Pay Range:

The Leidos pay range for this job level is a general guideline onlyand 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.