Senior Embedded Software Developer
Location: Commutable to Hertfordshire, Cheltenham, and Bristol – primarily on site (4 days/week on customer site, 1 day remote where appropriate).
Clearance: Must be eligible and willing to undergo DV clearance (British Citizen, UK residency last 10 years).
What You’ll Do
- 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 solutions involving communication protocols, peripheral integration, and performance/robustness constraints.
- Lead debugging, testing, and optimisation across lab and field environments.
- Shape requirements with stakeholders; propose approaches and influence delivery plans.
- Support integration, configuration, and deployment into secure operational environments.
- Produce high‑quality documentation and enforce consistent Git workflows and review standards.
- Mentor junior engineers and raise team capability through coaching and knowledge sharing.
Essential Skills and Experience
- Extensive hands‑on embedded software development experience.
- Strong proficiency in C/C++ (and/or Python where appropriate).
- Deep experience with embedded systems (ESP32, ARM Cortex, SBCs).
- Strong understanding of low‑level interfacing (UART, GPIO, USB, SPI/I2C).
- Confident in Linux‑based development environments and toolchains.
- Strong debugging skills (JTAG/SWD, logic analyzers, profiling, etc.) and disciplined engineering practice.
- Ability to communicate clearly and influence technical decisions across teams.
Desirable
- Experience delivering in secure/defence environments.
- Knowledge of cryptography, secure transport, or secure system design.
- Wireless experience (Bluetooth, UWB, Wi‑Fi).
- USB device drivers / advanced USB communications.
- RTOS / bare‑metal expertise.
- Embedded Rust experience or strong interest.
Education & Qualifications
- Degree in a relevant discipline preferred (or equivalent experience).
- Professional membership (BCS, IET) is a plus.
Clearance Requirements
- Clearance to start: SC
- Clearance for role: DV
Benefits
- Contributory Pension Scheme.
- Private Medical Insurance.
- 33 days Annual Leave (including public and bank holidays).
- Flexible benefits (life assurance, health schemes, gym memberships, annual buy‑and‑sell holidays, cycle‑to‑work scheme).
- Flexi‑Time.
Pay Range
£61,500.00 – £78,800.00
Equal Opportunity Employer
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
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