Senior Embedded Software Engineer

ALTEN

CrawleyOn-siteEst. £55k - £80k (similar roles)full timeDefense & NavalPosted 2 days agoEarly applicant likely

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Join our team to develop embedded C++ software for high‑reliability communication and information‑exchange systems used in defence environments. You’ll contribute to next‑generation communication and signal‑processing technologies, working across embedded platforms that demand robustness, security, and deterministic performance. This role is ideal for an engineer experienced in embedded C++ who enjoys contributing to complex systems that underpin secure and mission‑critical operations. Location: Crawley On‑site: 4 days per week Seniority: Senior (8+ years of experience) Clearance: Candidates must be willing and eligible to obtain SC clearance. Key Responsibilities - Design, implement, and maintain embedded C++ software for real‑time communication and signal‑processing systems. - Develop and support software for embedded communication modules, modems, and RF‑adjacent components. - Conduct debugging, optimisation, and performance testing across embedded targets to ensure reliability under operational loads. - Produce clear and traceable design specifications, requirements, and documentation aligned with regulated development practices. - Ensure adherence to secure coding standards, governance policies, and safety‑critical development procedures. - Support integration activities with wider engineering teams and contribute to architecture and design reviews. Required Skills - Strong proficiency in C++ for embedded systems (C++11/14/17). - Experience in embedded development for communications or signalling systems (modems, radios, data links, or similar). - Familiarity with embedded debugging, performance optimisation, and hardware‑software interaction. - Understanding of secure coding practices, configuration management, and development governance. - Experience with requirements traceability, verification, and system‑level testing. Soft Skills & Collaboration - Strong communication skills for cross‑discipline collaboration. - Ability to work rigorously within regulated environments. - Proactive, problem‑solving mindset with attention to detail. Required Qualifications - Bachelor’s or Master’s degree in Software Engineering, Computer Science, or related discipline or relevant technical military background with equivalent experience. - Must be eligible to hold or already hold UK SC Security Clearance. Desirable Skills - Experience with communication stacks, DSP concepts, or RF‑adjacent technologies. - Familiarity with embedded Linux or RTOS environments. - Experience with CI/CD tooling, model‑based design, or static analysis tools. - Background in defence, avionics, or secure‑systems engineering.

About ALTEN

ALTEN provides engineering design and development services for aerospace and defence programmes, hiring specialists in mechanical design, systems integration, and firmware engineering for complex projects like gas turbine engines and high-reliability embedded systems.

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