Mechanical Responsible Engineer

About this role

Mechanical Responsible Engineer Warrington Perm or Contract (Inside IR35) Mechanical Responsible Engineer (RE) ⚙️ The RE holds full technical accountability for mechanical & ventilation engineering within their area, ensuring all work is safe, compliant, and fit for purpose across the project lifecycle 🔍. Working to R2A2 (ED21), you’ll provide technical leadership, governance, and assurance, while retaining responsibility for key engineering decisions—even when delegated 👷‍♂️.

Key Responsibilities & Experience: Strong mechanical engineering background in regulated, safety-critical environments ⚠️ Proven technical accountability & decision-making experience ✅ Ensure compliance with legislation, standards, and safety requirements 📜 Establish governance, assurance & verification processes 🧩 Lead multi-disciplinary teams & resolve complex technical issues 🤝 Manage technical risks effectively ⚡ Interface with project teams, regulators & assurance bodies 🏢 Promote a strong safety, quality & compliance culture 🛡️ Essential Qualifications 🎓 Degree (or equivalent) in Mechanical Engineering or related discipline ⚙️ Extensive experience aligned to a Responsible Engineer role 🏗️ Chartered Engineer (or equivalent) with a recognised institution 👨‍🔧 Able to meet security clearance & site access requirements 🔐 Key Experience 💼 Experience as a Responsible Engineer or technical authority in nuclear/high-hazard environments ☢️ Safety case development, substantiation & regulatory engagement 📊 Full lifecycle delivery: concept → commissioning & handover 🔄 Managing deviations, concessions & non-conformances ⚠️ Strong understanding of governance, assurance & gated processes 🧩 Contribution to strategic decision-making & continuous improvement 📈 Specialist Knowledge ⭐ SQEP in high-integrity piping design (incl.

seismic & safety case) 🔩 Machinery Directive & machinery design expertise ⚙️ UKCA marking for new facilities 🇬🇧 Familiarity with SEMs, Design Capability CoE & organisational structures 🏢 SQEP aligned with SR0699 & ED21 standards 🎯 Whilst we encourage applications from all nationalities, Assystem within the UK are subject to security and export control restrictions due to the nature of work to be undertaken. These restrictions mean that factors including your nationality, any previous nationalities you have held, and/or your place of birth may limit those roles that you can perform for the organisation.