Principal Mechanical Engineer

Assystem; Warrington; Hybrid; GBP 60,000 - 100,000; Full time

Job summary

An established industry player is seeking a Principal Mechanical Engineer to join their Fusion and Modular Nuclear Business Unit. This role involves leading innovative engineering projects for Small Modular Reactors and Fusion technologies. You will spearhead design efforts, ensuring optimal integration of systems within the plant infrastructure while mentoring junior staff. The company, with over 55 years in nuclear engineering, offers a hybrid work model and competitive benefits, making it an exciting opportunity for professionals looking to make a significant impact in the energy transition sector.

Benefits

Competitive Social Benefits

Ongoing Training Opportunities

Employee Engagement Bonuses

Hybrid Work Model

Qualifications

• Extensive experience in regulated industries such as nuclear and thermal power.
• Proven ability in optioneering and safety argumentation.

Responsibilities

• Lead engineering design teams for Small Modular Reactors and Fusion projects.
• Conduct optioneering studies and ensure compliance with H&S policies.

Skills

Nuclear Engineering

Thermal Power Systems

Optioneering Studies

Safety Argumentation (ALARP, BAT)

Leadership

Stakeholder Engagement

Requirements Management

Systems Engineering

Education

Degree in Engineering

Professional Certification in Nuclear Engineering

Job description

Assystem Warrington, England, United Kingdom

Principal Mechanical Engineer

Assystem Warrington, England, United Kingdom

1 week ago Be among the first 25 applicants

Assystem is a global leader committed to accelerating the energy transition. With 7,500 employees across 12 countries, we tackle the monumental task of switching to low-carbon energy. Our 55+ years of experience in highly regulated sectors ensure we deliver top-notch engineering, project management, and digital solutions.

Job Description

Join the Fusion and Modular Nuclear Business Unit! Reporting to the FEED Engineering Manager, you will be responsible for delivering front-end engineering activities for Small Modular Reactors, Advanced Modular Reactors, and Fusion projects. The Principal Engineer will work closely with multi-disciplinary teams and lead an engineering design team to deliver scope effectively.

Your mission:

• Spearheading the delivery of innovative power station systems.
• Conducting optioneering studies to identify the best solutions aligned with client objectives.
• Leading a team in creating and refining design documents, including Process Flow Diagrams and Equipment Datasheets.
• Developing Design Description Documents and Requirement Specifications to drive design excellence.
• Integrating systems into the overall plant infrastructure for optimal performance.
• Serving as the technical expert for designated scopes.
• Chairing Design Reviews and leading HAZID/HAZOP studies with multidisciplinary teams.
• Ensuring compliance with company H&S policies and project quality standards.

Why Join Us?

• Over 55 years in nuclear engineering.
• Ranked among the top 3 largest nuclear engineering firms.
• Competitive social benefits, including employee engagement and bonuses.
• Ongoing training and internal promotion opportunities.
• Hybrid work model: 1-2 days remote/week.

Qualifications:

• Extensive experience in regulated industries such as nuclear, thermal power, or oil and gas.
• Expertise in thermal power systems and nuclear plant operations.
• Proven ability in optioneering, studies, and safety argumentation (ALARP, BAT).
• Leadership experience, mentoring junior staff, managing small teams.
• Excellent communication skills for stakeholder engagement.
• Knowledge of ASME, European, UK standards, and Product Safety Legislation.
• Understanding of requirements management and systems engineering.
• Results-driven, organized, capable of working independently or collaboratively.
• British National, eligible for UK security clearance.

Additional Information

Applicants must meet UK security clearance criteria due to the nature of work.

Join Us!

Be part of the future of nuclear and fusion innovation. We value diversity and believe that different backgrounds foster innovative solutions. Your skills, talent, and daring spirit are what matter. Contribute your unique perspective to shape the future with us.