Software Engineer – Real Time OS (RTOS)

About the role

We are looking for a Software Engineer with strong embedded development experience to join our team on a long‑term contract at our Stevenage site. You will work on real‑time, mission‑critical software for missile subsystems, collaborating with hardware and firmware teams.

Key responsibilities

• Design, develop and integrate embedded software using C, C++ and/or Ada.
• Maintain and evolve real‑time operating system (RTOS) based applications.
• Work with RISC‑V and ARM processing platforms.
• Perform code reviews, analytical testing and critical design analysis.
• Collaborate with multiple stakeholders to ensure seamless integration of software components.

Required profile

• Proven experience in embedded software development with C/C++ (Ada a plus).
• Good understanding of real‑time operating systems and their constraints.
• Ability to solve technical problems that may extend beyond pure software.
• Strong analytical and design skills, including critical review.
• Effective communication with cross‑functional teams.

Required skills

• C
• C++
• Ada (optional but beneficial)
• Real Time Operating Systems (RTOS)
• RISC‑V
• ARM
• DO‑178B/C standards
• MISRA coding standards
• SPARK coding standards
• DefStan 00‑55