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# Principal Software Engineer - Verification

- **Company:** IO
- **Location:** Gloucester, UK
- **Salary:** £65,000.0 - £75,000.0
- **Contract:** Permanent contract
- **Skills:** ARM Architecture, Automation of Tests, Configuration Management, Software Debugging, Embedded Software, FreeRTOS, Real-Time Operating Systems, Software Engineering, Software Verification, Information Technology, DO-178B
- **Published:** May 15, 2026
- **Apply:** https://find.jobs/jobs-near-me/principal-software-engineer-verification-bristol-gloucestershire/2769737813-2/

## About the Role

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

## Description

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


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