Embedded SW Engineer - Safety-Critical Gas Sensing; C++

Are you searching for a new opportunity that will allow you to play your part in creating a cleaner and healthier world?

Here at Servomex, our work spans a broad spectrum of industries, from enabling low-emission power generation, to supporting high-purity medical oxygen, enhancing facility safety, and advancing innovative research.

We’re seeking an Embedded Software Engineer to design, develop and maintain robust software for mission‑critical gas analysis sensors, operating in safety‑critical and high‑availability environments.

• This role is not available for sponsorship, the successful candidate must have permanent eligibility to work in the UK
• Location:
  
  Crowborough, East Sussex (hybrid)

• Design, develop, test and maintain embedded software using modern C++ (C++11/14/17) and C
• Translate mathematical and scientific specifications into efficient, reliable software algorithms
• Ensure software is suitable for safety‑critical and mission‑critical systems
• Contribute across the full product lifecycle - requirements, design, implementation, verification and maintenance
• Translate stakeholder and system requirements into detailed software designs
• Develop and maintain PC‑based tooling in Python to support testing, verification and team productivity
• Apply structured debugging and problem‑solving techniques to diagnose complex issues
• Understand how software decisions impact hardware, system behaviour and overall product performance
• Provide accurate estimates, own assigned work packages and deliver to agreed quality and timescales
• Collaborate within a multi‑disciplinary team of Scientists, Electronics, V&V and Manufacturing Engineers
• Follow established technical standards and processes whilst supporting continuous improvement

• Strong, hands‑on coding experience in modern C++ (C++11/14/17) and C within embedded environments
• Experience developing embedded software on an RTOS (e.g. Thread
  
  X, QNX, Integrity or similar)
• Working knowledge of Python for scripting, test or tooling
• Good mathematical understanding, ideally with experience in signal processing or algorithm implementation
• Experience working to defined development standards and processes
• Confident use of version control and change management tools
• Strong analytical thinking, clear communication and the ability to work independently when required
• Proven problem‑solving skills with a structured and analytical approach
• Working knowledge of electronic circuits and components
• Experience of requirements specification and software design

• Exposure to functional safety or security standards (IEC 61508, IEC 62443)
• Experience with STM
  32 or NXP i.MX platforms
• Familiarity with requirements management and task tracking tools (e.g. Jama, DOORS, Jira, Helix ALM)
• Agile delivery environments or GenAI‑assisted development tools

• Work on technically challenging, real‑world products where quality and reliability matter
• High level of ownership and influence over design decisions
• Supportive, ethical engineering culture with strong cross‑disciplinary collaboration
• Opportunity to grow your expertise in modern embedded C++ within safety‑critical systems

• Degree (or equivalent) in Computer Science, Electrical Engineering, Software Engineering or related technical / scientific / engineering subjects

• Friendly chat with our Talent Team
• Teams video interview with the hiring team
• On‑site interview, meet the team and tour of our facility