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