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Mechanical Responsible Engineer

Hybrid in Warrington·Full-time·Added 4 days ago (last checked 9 Oct)

Assystem

351 open roles

Overview

Job details

  • Contract role, inside IR35

    The ad says the role sits inside IR35, so tax and National Insurance are deducted as for an employee, usually through an umbrella company.

  • Hybrid

    Office and home days — the ad has the split.

Requirements

  • Be near Warrington for hybrid days

    No relocation package mentioned.

  • Have 3+ years of experience

    Mid-level role.

Skills

Nice to have

Requirements

Qualifications

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 🎯

Pay & benefits

Additional Information

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. 

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

The role

Company Description

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Job Description

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 🛡️

About Assystem

Industry
Nuclear Engineering
Headquarters
Paris, France
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