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 RoleYou''ll operate as a senior technical authority while remaining close to the code. Responsibilities include:Leading verification strategy and approach for embedded software systemsDesigning, developing, and maintaining test frameworks, tools, and automationPerforming low-level software verification across multiple architecturesContributing directly to code-level activities (primarily C / embedded environments)Driving verification activities across the full software lifecycleSupporting certification to standards such as IEC 61508, DO-178C, ISO 26262Mentoring engineers and setting best practices within the verification teamWorking closely with customers to provide technical guidance and supportWhat We''re Looking ForEssential:Degree in Engineering, Computer Science, Maths or similarExperience with Real-Time Operating Systems (e.g. FreeRTOS, SafeRTOS or similar)Strong background in embedded software engineering (C)Significa