Mechanical Responsible Engineer

Company: Assystem
Apply for the Mechanical Responsible Engineer
Location: Warrington
Job Description:

Overview

In this role you take technical accountability for mechanical and ventilation engineering within a regulated project context. You will provide technical leadership, governance, and assurance across the lifecycle, ensuring safety, compliance and fit-for-purpose outcomes. You will collaborate with project teams, regulators and assurance bodies to address complex issues and drive continuous improvement, all within a culture focused on safety and quality. This is a chance to contribute to high-stakes infrastructure projects in the nuclear/high-hazard domain and shape how engineering decisions are made and validated.

Responsibilities

  • Hold full technical accountability for mechanical and ventilation engineering within your area
  • Ensure compliance with legislation, standards, and safety requirements
  • Establish governance, assurance and verification processes
  • Lead multi-disciplinary teams and resolve complex technical issues
  • Manage technical risks effectively
  • Interface with project teams, regulators and assurance bodies
  • Promote a strong safety, quality and compliance culture

Key requirements

  • Degree (or equivalent) in Mechanical Engineering or related discipline
  • Chartered Engineer (or equivalent) with a recognised institution
  • Able to meet security clearance and site access requirements
  • Experience as a Responsible Engineer or technical authority in nuclear/high-hazard environments
  • Safety case development, substantiation and regulatory engagement
  • Full lifecycle delivery: concept to handover
  • Managing deviations, concessions and non-conformances
  • Strong understanding of governance, assurance and gated processes
  • Contribution to strategic decision-making and continuous improvement
  • leadership
  • stakeholder engagement
  • problem-solving
  • SQEP in high-integrity piping design (incl. seismic & safety case)
  • Machinery Directive & machinery design expertise
  • UKCA marking for new facilities

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Posted: October 1st, 2026