Description
Software Engineer
Location: Whiteley (primarily home-based / hybrid)
Security Clearance: Must hold or be eligible for SC clearance
Are you ready for your next career challenge?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams in the UK to address some of the most complex problems in defence, government, safety and security, and transportation. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
We are currently recruiting a Software Engineer to join our Air Traffic Management (ATM) portfolio. This is an exciting opportunity to work on safety-critical Air Traffic Control systems, supporting customers who rely on highly reliable, real-time software.
You will be part of a multidisciplinary engineering team, contributing across the full software lifecycle — from problem analysis and design through to delivery and operational deployment. The role offers variety, exposure to multiple applications, and the chance to work in a highly regulated, safety-focused environment.
Typical Duties:
You will contribute to the development, maintenance, and support of software used in Air Traffic Control systems. Typical responsibilities include:
* Investigating and resolving software and system issues

* Developing and maintaining software requirements and designs

* Designing, building, and updating software solutions

* Supporting change, release, and configuration management activities

* Creating and executing software test plans

* Ensuring all work follows defined engineering processes and software assurance standards

* Working closely with Systems Engineering, Test teams, and project stakeholders

* Supporting multiple applications in parallel as required

Required Skills:
You’ll have a strong software engineering background, ideally within a real-time or safety-critical environment, and be comfortable working to defined standards and processes.
Essential skills and experience:
* Experience developing real-time and/or safety-related software

* Knowledge of software development languages such as C, C++ or TAL

* Experience with scripting languages such as Python or TACL

* Experience across software development, integration, and test

* Understanding of configuration management in a software engineering environment

* Ability to work across the full project lifecycle, from early phase through to delivery

* Strong problem-solving skills with clear technical judgement

* Ability to collaborate effectively with engineers, managers, and other stakeholders

* Strong written and verbal communication skills

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

* Flexi 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 world safer, healthier, and more efficient through technology, engineering and science.
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.
Working together as Team Leidos we are helping to transform the UK’s defence supply chain by providing an integration of a complex mixture of services, at low risk, using a modern suite of systems that will deliver one version of the truth. For the first time, the MOD will see the whole picture, as it is happening.
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 that enhance your future.
If you’re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We’re not hiring followers. We’re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We’re already at step 30 — and moving faster than anyone else dares.
Original Posting:
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at