Software Engineer
Location: Whiteley (Hybrid / Primarily Home‑Based)
Security Clearance: Must hold or be eligible for SC clearance
At Leidos, we deliver innovative technology solutions through the expertise of our talented people. In the UK, we work across defence, government, safety and security, and transportation, helping customers solve some of their most complex and mission‑critical challenges. Everything we do is guided by our Mission, Vision, and Values and a commitment to doing the right thing for our customers, our people, and our communities.
We are looking for a Software Engineer to join our Air Traffic Management (ATM) programmes. Based in Whiteley, with primarily home‑based working, you’ll be part of a multi‑disciplinary engineering team supporting safety‑critical, real‑time Air Traffic Control systems.
You’ll contribute across the full software lifecycle, from requirements and design through to deployment and operational support. The role involves working on multiple applications, so it suits someone who is organised, adaptable, and comfortable working in a structured, regulated environment.
What You’ll Be Doing
* Investigating and resolving software and system issues
* Developing and maintaining software requirements and designs
* Designing, building, and implementing software solutions
* Contributing to architecture and technical design activities
* Creating and executing software test plans
* Supporting change, release, and configuration management
* Producing technical documentation and white papers
* Working closely with Systems Engineering, Test teams, and project stakeholders
* Ensuring compliance with software engineering processes and assurance standards
Required skills
* Proven experience developing software solutions (e.g. Ada, C, C++)
* Experience working to Waterfall and V‑Model development approaches
* Experience delivering software on Linux operating systems
* Experience across software development, integration, and test
* Experience working across the full project lifecycle, from requirements to delivery
* Strong analytical and problem‑solving skills
* Ability to collaborate effectively within multi‑disciplinary teams
* Clear verbal and written communication skills
* Strong organisation and time management skills
Desirable Skills & Experience
* Experience delivering real‑time and/or safety‑critical software
* Experience with Agile methods (e.g. Scrum)
* Knowledge of modelling languages (e.g. UML, SysML)
* Experience with procedural and object‑oriented languages (e.g. C, C++, Java)
* Experience with scripting languages (e.g. Python)
* Familiarity with COTS integration technologies (e.g. Apache Camel, Kafka)
* Experience using Atlassian tools (e.g. Jira, Confluence)
* Understanding of configuration management in a software engineering environment
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