Principal Embedded Software Engineer

Company: IO Associates
Apply for the Principal Embedded Software Engineer
Location: Bristol
Job Description:

Shape how safety-critical software is verified at the highest level.

Apply now, read the job details by scrolling down Double check you have the necessary skills before sending an application. We're partnering with a growing, highly respected engineering SME specialising in safety-critical embedded systems . They are looking for a Principal Software Engineer to play a key role in developing and assuring high-integrity embedded software, including a safety-certified real-time operating system. This is a hands-on software engineering role within the verification team, combining technical leadership with deep involvement in verification, validation, and certification activities.

The Role

You'll operate as a senior technical authority while remaining close to the code. Responsibilities include: Leading verification strategy and approach for embedded software systems Designing, developing, and maintaining test frameworks, tools, and automation Performing low-level software verification across multiple architectures Contributing directly to code-level activities (primarily C / embedded environments) Driving verification activities across the full software lifecycle Supporting certification to standards such as IEC 61508, DO-178C, ISO 26262 Mentoring engineers and setting best practices within the verification team Working closely with customers to provide technical guidance and support

What We're Looking For

Essential: Degree in Engineering, Computer Science, Maths or similar Experience with Real-Time Operating Systems (e.g. FreeRTOS, SafeRTOS or similar) Strong background in embedded software engineering (C) Significant experience in software verification / validation Experience developing test tools, frameworks, or automation Understanding of low-level / hardware-near software behaviour Experience working in a controlled or safety-critical environment Degree in Engineering, Computer Science, Maths or similar Strong communication skills and ability to engage with stakeholders Highly Desirable: Knowledge of safety standards ( IEC 61508, DO-178C, ISO 26262, IEC 62304 ) Experience with ARM architectures (Cortex M / A) or similar xkybehq Understanding of debugging at processor level Knowledge of software lifecycle, requirements, and configuration management Exposure to networking, multicore systems, or embedded security

Working Environment

Bristol-based Hybrid working (minimum 3 days onsite; more during onboarding) Collaborative, engineering-led environment with strong technical depth

Package & Benefits

Competitive salary with annual review Performance-related bonus Generous pension contribution Private healthcare, income protection & life assurance 25+ days holiday (increasing with service) Flexible working hours Ongoing professional development and training…

Posted: July 1st, 2026