Principal/Senior Mechanical Engineer - Nuclear

JR United Kingdom; Chester; Hybrid; GBP 50,000 - 75,000; Full time

Job summary

A leading engineering organization is seeking a Principal/Senior Mechanical Engineer in Chester for major nuclear projects. This role involves managing complex powder handling systems, ensuring safety compliance, and collaborating with diverse teams. Candidates must possess strong mechanical engineering skills and experience in regulated environments, with opportunities for career advancement and professional development.

Qualifications

• Degree preferred, ideally in Mechanical Engineering.
• Chartered status or working towards registration (IMechE) is advantageous.

Responsibilities

• Lead design and review of bulk solids/powder handling systems.
• Ensure compliance with safety regulations in nuclear environments.
• Collaborate with multidisciplinary teams and mentor junior engineers.

Skills

Bulk solids handling

Powder handling

Engineering standards

Nuclear safety principles

Technical documentation

Education

Degree in Mechanical Engineering

Job description

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Principal/Senior Mechanical Engineer - Nuclear, Chester

Client: iO Associates - UK/EU

Location: Chester, 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 working with a leading engineering organisation involved in major UK nuclear projects. We are recruiting a Principal/Senior Mechanical Engineer with expertise in bulk solids or powder handling systems, ideally for nuclear or other highly regulated sectors.

This role offers the opportunity to contribute to the safe management of radioactive or hazardous powders, including fuel fabrication and waste processing, within complex engineering environments. Multiple positions are available.

Key Responsibilities:

• Lead design, integration, and review of powder handling systems (e.g., hoppers, feeders, pneumatic conveyors, gloveboxes).
• Apply engineering standards and nuclear safety principles throughout all design and project phases.
• Produce and review technical documentation, including calculations, drawings, reports, and risk assessments.
• Collaborate with multidisciplinary teams including nuclear safety, process, and systems engineers.
• Ensure compliance with safety cases and relevant codes through engineering oversight.
• Engage with clients, manage stakeholders, and mentor junior engineers.
• Background in mechanical engineering with strong experience in bulk solids/powder handling, preferably in regulated environments (nuclear, pharma, chemical, etc.).
• Design or evaluate mechanical systems involving containment, flow control, or automated powder transfer.
• Experience in technical documentation and engineering calculations.
• Work collaboratively to solve problems across project teams.
• Experience with glovebox or hot cell design.
• Knowledge of safety standards, ALARP, and radiological containment.
• Experience with nuclear decommissioning, new build, or fuel cycle facilities.

Qualifications:

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