Principal/Senior Mechanical Engineer - Nuclear

JR United Kingdom; Liverpool; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading engineering organization is looking for a Principal/Senior Mechanical Engineer specializing in bulk solids handling for nuclear projects. This permanent full-time role involves designing and overseeing systems that manage hazardous materials, ensuring compliance with safety regulations, and mentoring junior engineers in a collaborative environment.

Qualifications

• Degree preferred in Mechanical Engineering or related field.
• Chartered or working towards professional registration (e.g., IMechE) advantageous.

Responsibilities

• Lead the design and review of powder handling systems.
• Ensure compliance with nuclear safety principles and engineering standards.
• Provide oversight and mentorship to junior engineers.

Skills

Bulk solids handling

Mechanical engineering

Problem-solving

Collaborative teamwork

Education

Degree preferred

Job description

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Principal/Senior Mechanical Engineer - Nuclear, Liverpool

Client:

iO Associates - UK/EU

Location:

Liverpool, United Kingdom

Job Category:

Other

EU work permit required:

Yes

Job Views:

2

Posted:

06.06.2025

Expiry Date:

21.07.2025

Job Description:

Job Title: Principal/Senior Mechanical Engineer (Nuclear)

Location: Warrington (Hybrid: 3 days onsite, 2 days WFH)

Job Type: Permanent | Full Time

About the Role

iO Associates is currently working with a leading engineering organisation involved in major UK nuclear projects. We're recruiting for a Principal/Senior Mechanical Engineer with expertise in bulk solids or powder handling systems, ideally for nuclear or other highly regulated sectors.

This is a unique opportunity to contribute to the safe and effective management of radioactive or hazardous powdered materials—ranging from fuel fabrication to waste processing—within complex engineering environments. Multiple positions are available.

Key Responsibilities

• Lead the design, integration, and review of powder handling systems (e.g., hoppers, feeders, pneumatic conveyors, gloveboxes).
• Apply engineering standards and nuclear safety principles across all design and project stages.
• Produce and review technical documentation, including calculations, drawings, reports, and risk assessments.
• Collaborate with multi-disciplinary teams including nuclear safety, process, and systems engineers.
• Provide engineering oversight to ensure compliance with safety cases and relevant codes.
• Support customer engagement, stakeholder management, and technical mentoring of junior engineers.
• Background in mechanical engineering with strong exposure to bulk solids/powder handling, ideally in a regulated environment (nuclear, pharma, chemical, etc.).
• Proven ability to design or evaluate mechanical systems involving containment, flow control, or automated powder transfer.
• Experience in producing and reviewing detailed technical documents and engineering calculations.
• Collaborative approach to problem-solving across project teams.
• Experience with glovebox or hot cell design.
• Knowledge of critical safety, ALARP, and radiological containment.
• Prior exposure to nuclear decommissioning, new build, or fuel cycle facilities.

Qualifications

• Degree preferred.
• Chartered or working towards professional registration (e.g., IMechE) is advantageous.