Leidos
Senior Software Developer
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Senior Embedded Software Developer
Location
Commutable to Herfordshire, Cheltenham, and Bristol – mostly on-site (4 days/week on customer site, 1 day remote as appropriate)
Clearance Requirements
Must be eligible and willing to undergo DV (Developed Vetting) clearance (British Citizen or UK residency last 10 years).
About the Role
Are you a proven embedded software engineer who enjoys tackling complex problems and real-world constraints? Seeking an opportunity to design and deliver operational tooling alongside end users in National Security & Defence?
We’re looking for a senior technical contributor who can:
- Take ownership of embedded deliveries
- Guide technical direction
- Mentor junior engineers
- Work across platforms like ESP32, Raspberry Pi, and ARM
Responsibilities
Key Duties
- Lead development of bespoke embedded solutions across multiple platforms.
- Design, implement, and maintain production-quality C, C++, and/or Python code interfacing with hardware.
- Architect communications protocols, peripheral integration, and performance/robustness optimised solutions.
- Lead debugging, testing, and optimisation in lab and field environments.
- Collaborate with stakeholders to shape requirements, propose approaches, and influence delivery plans.
- Support integration, configuration, and secure deployment in operational environments.
- Produce high-quality documentation and enforce Git workflows & code review standards.
- Mentor junior engineers through coaching and knowledge sharing.
Essential Requirements
What You’ll Bring
- Extensive hands-on embedded software development experience.
- Strong proficiency in C/C++ (Python is desirable for certain tasks).
- Deep experience with embedded systems (ESP32, ARM Cortex, Single-Board Computers).
- Expertise in low-level interfacing (UART, GPIO, USB, SPI/I2C).
- Confidence with Linux-based development environments and toolchains.
- Proficient debugging skills (JTAG/SWD, logic analysers, profiling, etc.).
- Clear communication and influenceability across multidisciplinary teams.
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Desirable (Bonus)
- Experience delivering in secure/defence environments.
- Cryptography, secure transport, or secure system design knowledge.
- Wireless experience (Bluetooth, UWB, Wi-Fi).
- USB device drivers & advanced USB communications expertise.
- RTOS or bare-metal development experience.
- Embedded Rust experience or strong interest.
Education & Qualifications
- Degree in relevant STEM/engineering discipline preferred (equivalent experience acceptable).
- Professional membership (e.g., BCS, IET) is beneficial but not mandatory.
Clearance Details
- Clearance to Start: SC (Security Check)
- Clearance for Role: DV (Developed Vetting)
Benefits & Rewards
At Leidos, we empower you to be PASSIONATE about success, UNITED as a team, and INSPIRED to make a difference. Our benefits include:
Compensation & Work-Life Balance
- Contributory Pension Scheme
- Private Medical Insurance
- 33 days Annual Leave (plus public/privilege holidays)
- Flexible benefits (life assurance, health schemes, gym membership, cycle-to-work scheme)
- Flexi-Time (personalised working hours)
Career Growth & Culture
- Diverse and inclusive environment (adjustments provided for disabilities or accessibility needs).
- Unparalleled purpose: Use your skills to safeguard frontline services across defence, healthcare, security, and government.
- Collaborative culture with flexibility to work on-site, remotely, or at customer locations.
- Investment in growth: Technical academies, career rotations, and personal development plans.
- We outthink, outbuild, and outpace the status quo—this is for innovators who disrupt expectations.
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Salary Range
£61,500 – £78,800 (varies based on factors including experience, location phase, and market rates).
About Leidos
Leidos is a technology and engineering innovation leader, delivering solutions that improve global security, healthcare, government, and transportation systems. With 47,000+ employees worldwide, we foster purpose-driven work, relentless innovation, and a commitment to an inclusive culture.
Join us to reshape the future.
Security Notice
⚠ Beware of fake Leidos job offers! Leidos will never ask for payment during the hiring process nor advance money. Always verify emails from Leidos.com—never free accounts (e.g., Gmail, Yahoo) or uncommended messaging (WhatsApp, Telegram).
For suspicious activity, report to: LeidosCareersFraud@leidos.com.
Commitment to Non-Discrimination
All applicants receive equitable consideration, regardless of race, sex, age, religion, disability, veteran status, or other protected characteristics.
(Note: Pay details reflect UK employment standards—USA-specific notes in original omitted for clarity.)
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