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Home Senior or Principal Manufacturing Engineer ( Lead Engineer)

Our Vacancy

Senior or Principal Manufacturing Engineer ( Lead Engineer)

  • Defence
  • Permanent /
  • Derby
  • United Kingdom
  • 30/10/25
  • On site

Assystem is an international company with one mission: accelerate the energy transition around the world.


Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.


We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.


Drawing on more than 55 years’ experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked third in the world for nuclear engineering.


To ensure a viable, efficient, and reliable energy future for all.


Job Description

Senior / Principal Manufacturing  Engineer (Lead Engineer)

 Location: Derby  
 

💼 Your Future Team

As part of a growing account, Assystem Energy & Infrastructure are looking to increase our Engineering capability to respond to an increase in demand for a new client account. We are therefore recruiting for a Senior or Principal Technical Lead for Manufacturing Capability.

As a Technical Lead, you will be involved in developing an engineering capability with responsibility for managing and delivering manufacturing capability resources to support engineered solutions. This work is to support current and future manufacturing requirements for the nuclear defence sector.

Your Missions

🔧 Support development and growth of a Manufacturing capability within a growing client base.
🧩 Lead manufacturing teams in Requirements Capture and down-selection processes for acquiring equipment, and ultimately conduct Validation and Verification through to implementation of equipment to an Operational Plant.
📝 Provide technical authorship within a Bid proposal process and Bid management experience.
🤝 Build effective relationships with internal and external stakeholders including client representatives.

My profile

Experience / Qualifications Required

✅ Demonstrable evidence (3yrs+) of managing and delivering engineering projects in tooling-related industries, including experience in managing and developing multi-discipline teams.
🗣️ Strong interpersonal skills in managing manufacturing teams, excellent communication, and ability to interface with multiple levels of internal and client stakeholders.
⚙️ Knowledge of manufacturing machining methods and ensuring processes meet manufacturability requirements. Knowledge of metallurgy of metallics and/or composite materials, exposure to assessing defect criteria, and using tools and techniques (LEAN Principles, 5 Whys), NDE detection methods, welding techniques, and equipment acquisitions.
💻 Awareness of PLMs (Teamcenter) and use of MS Suite to produce or check technical documentation — providing guidance and mentorship to the Manufacturing delivery team and their deliverables.
📊 Experience in estimating, planning, and budgeting for the discipline within a programme of work.
⚛️ Able to demonstrate nuclear professionalism and best practices, or experience in a highly regulated sector.
🏭 Working knowledge of regulatory compliance to Nuclear Industry standards, with desirable experience delivering equipment, plant, and systems.
🧠 Ideally possess Nuclear industry or heavy industry production experience to support precision engineering-related projects.
📜 Experience applying current Legislative Regulations (e.g. Machinery Directive, PUWER, CDM Regulation) and respective Engineering Standards (ASME, BS, EN).
🏷️ Good understanding of UKCA Marking (CE marking), Security and Safety Classifications, QA/QC grading for equipment.
🔗 Experience working within the Supply Chain and a track record of managing suppliers as an Intelligent Customer.
🔄 Experience with full life cycle of equipment — Construction, Commissioning, Installation, and Handover processes is desirable.
💼 Commercial awareness (engineering, procurement and commercial models of delivery — EPC / NEC4).
📅 Project Management experience (quotation processes, estimating, cost-to-complete, scheduling, resourcing, risk management, reporting, and presenting to stakeholders).
📋 Experience in compliance with Quality Management Systems and Business Management Systems.

🔐Please be aware that many roles at Assystem are subject to both security and export control restrictions.

  • These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation.

All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

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.

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.

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