Senior Embedded C++ Engineer - Real-Time Defense Systems

ALTEN; Crawley; On-site; GBP 85,000 - 110,000; Full time

Benefits offered by this job

Private Medical Insurance

Cycle & Tech Scheme

Employee assistance programme

Life insurance & Pension Scheme

Flexible working (role dependent)

Job summary

ALTEN is seeking a senior embedded C++ engineer in Crawley to design, implement, and maintain real-time software for high‑reliability communication and signal‑processing systems used in defence environments. You will contribute to next‑generation technologies, ensuring robustness, security, and deterministic performance across embedded platforms.

Eligible for UK SC clearance, on-site 4 days a week, with senior-level responsibilities and cross‑disciplinary collaboration.

Qualifications

• Bachelor’s or Master’s degree in Software Engineering, Computer Science, or related discipline.
• Experience with embedded C++ in defence or critical systems.
• Strong understanding of secure coding practices and governance.

Responsibilities

• Design, implement, and maintain embedded C++ software for real‑time comms and signal processing.
• Develop software for embedded modems, RF components and related hardware.
• Debug, optimise, and test performance across embedded targets under load.
• Produce design specifications, requirements, and documentation aligned with regulated practices.
• Ensure secure coding standards and adherence to development governance.

Skills

C++ (embedded)

Embedded debugging

Performance optimisation

Secure coding

Requirements tracing

Education

Bachelor’s or Master’s degree in Software Engineering/CS

Tools

CI/CD tooling

Model-based design

Static analysis tools

Job description

ALTEN is seeking a senior embedded C++ engineer in Crawley to design, implement, and maintain real-time software for high‑reliability communication and signal‑processing systems used in defence environments. You will contribute to next‑generation technologies, ensuring robustness, security, and deterministic performance across embedded platforms.

Eligible for UK SC clearance, on-site 4 days a week, with senior-level responsibilities and cross‑disciplinary collaboration.