Principal Systems Safety Engineer

Responsibilities

• Responsible for the technical ownership of hardware safety activities including Hardware‑Focused Safety Responsibilities.
• Hands‑on schematic reviews, ensuring hardware designs meet functional safety and integrity requirements.
• Providing safety requirements input directly into hardware design, including programmable elements and PLC‑based architectures.
• Managing and performing Hardware FMEDA activities to IEC 61508, including component‑level failure rate justification and diagnostic coverage assessment.
• Supporting and guiding low‑level hardware development teams, ensuring safety is embedded throughout the lifecycle.
• Producing Safety Case Reports, arguments and supporting evidence.
• Developing and maintaining Hazard Logs, Hazard Analyses and associated documentation including Cost Benefit Analysis.
• Conducting safety analyses such as FHA, FMEA, FTA, BowTie, and supporting wider system safety assessments.
• Assessing supplier safety compliance, ensuring alignment with legislative, contractual and functional safety requirements.
• Providing safety input to PDR, CDR and lifecycle engineering reviews.
• Acting as a Safety SME across multidisciplinary systems projects.

Requirements

• Valid SC Clearance.
• Sole UK Nationality.
• Must demonstrate strong capability in:
• Hardware & IEC 61508 Competence (Critical Requirement)
• Extensive experience in hardware safety assurance, including:
• Schematic interpretation and review
• Programmable electronic hardware (custom logic, PLCs, PE devices)
• Hardware requirements derivation and traceability
• FMEDA development and review
• Understanding of failure modes, diagnostic coverage and architectural constraints
• Utilisation of IEC 61508 and Def Stan 00-55 SIL determination
• Ability to work hands‑on with teams.
• Safety Engineering Competence.
• Strong background in hazard and risk management, including Hazard Identification, Hazard Logs, and Hazard Analysis.
• Experience producing Safety Arguments and supporting Design Authority approvals.
• Working knowledge of legislative compliance, including AMC/AAMC tailoring.
• Experience assessing supplier safety compliance against contractual and regulatory requirements.
• Proficiency in safety analysis techniques such as FTA, BowTie, FHA, FMEA.

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