Principal Engineer - Safety & Environmental Engineering

In this role, you'll provide technical leadership as a subject matter expert in safety engineering. You'll guide and mentor engineers, influencing design decisions and supporting the development of robust safety cases for complex nuclear submarine systems. You will analyse and assess major hazards including fires, explosions (including DSEAR), and steam release, applying structured safety engineering techniques to ensure compliance and design integrity. You'll also engage with regulators, MOD stakeholders, and internal teams to justify safety decisions and maintain high standards of assurance across the programme. Core duties:

• Provide technical leadership and expert guidance in safety engineering for complex systems
• Mentor and develop engineers, supporting capability growth and influencing engineering decisions
• Identify, assess, and mitigate hazards across nuclear submarine systems and related environments
• Develop, review, and maintain safety case documentation and structured safety arguments
• Apply hazard analysis techniques such as HAZOP, FMEA, Fault Tree Analysis, and Event Tree Analysis (desirable)
• Apply knowledge of DSEAR, fire risk assessment, and major hazard safety principles (desirable)
• Interface with regulators, MOD customers, and internal engineering and safety stakeholders
• Support safety justification through clear engineering judgement and structured evidence
  
  Degree qualified in a STEM discipline or equivalent experience
• Strong understanding of safety engineering principles and practices
• Experience producing or contributing to safety case documentation in complex engineering environments
• Ability to apply structured hazard analysis techniques and engineering judgement
• Excellent communication skills for technical and stakeholder engagement
  
  Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us.
From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you., Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role .