Senior Embedded C++ Engineer – Real-Time Defence (SC)

ALTEN; Crawley; On-site; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Private Medical Insurance

Employee assistance programme

Life insurance & Pension Scheme

Social atmosphere & team events

Flexible working arrangements

Job summary

ALTEN in Crawley seeks an experienced Senior Embedded C++ Engineer to design, implement and maintain real-time software for secure defence communication systems. You will contribute to advanced signal-processing technologies across embedded platforms demanding robustness and deterministic performance.

The role requires 8+ years in embedded C++ within regulated environments, with on-site work 4 days per week and eligibility for UK SC clearance.

Qualifications

• Bachelor's or Master’s degree in Software Engineering or Computer Science or a related discipline.
• UK SC Security Clearance eligibility is required.

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.

Skills

C++

Embedded systems

Embedded debugging

Secure coding

CI/CD tooling

Linux kernel drivers

RTOS

DSP concepts

Regulated environments

Requirements traceability

Education

Software Engineering or Computer Science degree

Military background (relevant)

Tools

Linux

RTOS environments

Embedded Linux

Job description

ALTEN in Crawley seeks an experienced Senior Embedded C++ Engineer to design, implement and maintain real-time software for secure defence communication systems. You will contribute to advanced signal-processing technologies across embedded platforms demanding robustness and deterministic performance.

The role requires 8+ years in embedded C++ within regulated environments, with on-site work 4 days per week and eligibility for UK SC clearance.