Senior / Principal Mechanical Design Engineer

AtkinsRéalis; Bristol; On-site; GBP 40,000 - 60,000; Full time

Job summary

A global engineering consultancy in the UK seeks a Mechanical Design Engineer to tackle complex projects in the energy sector. The role involves managing multiple engineering projects, developing innovative solutions, and ensuring compliance with industry standards. Ideal candidates will have a degree in Mechanical Engineering, experience with design codes, and proven project management skills. Join us in making a meaningful contribution toward the UK’s Net Zero target.

Benefits

Flexible Total Reward package

Holidays

Health & wellbeing benefits

Career development opportunities

Qualifications

• Degree qualified mechanical engineer (or relevant qualification).
• Experience with design codes such as ASME, Eurocodes, BS EN13001.
• Proficiency in preparing technical reports.

Responsibilities

• Develop engineering solutions to industry challenges.
• Manage multiple projects and deliver first-time-right solutions.
• Liaise with clients and internal teams to gather requirements.

Skills

Design codes knowledge

Requirements gathering

Project management

Stakeholder liaison

Technical report preparation

Education

Degree in Mechanical Engineering or relevant qualification

Job description

Job Description

Are you a Mechanical Design Engineer who thrives on solving difficult engineering problems? Are you interested in complex projects and eager to develop your technical leadership skills by heading multi-disciplinary projects?

If so, you might enjoy tackling the energy industry’s most important mechanical engineering challenges across various energy systems for diverse clients. You could be managing projects designing test rigs for UK nuclear fusion development, conducting structural integrity assessments of primary plant for civil and defence applications, designing high-integrity structures for new nuclear facilities, or leading renewable energy initiatives within a growing carbon net-zero portfolio. Since you'll be juggling multiple projects, adaptability is essential. The constant is the complex nature of these jobs and the opportunity to provide innovative solutions for a range of clients.

Regardless of the specific energy projects, you will be developing engineering solutions to industry challenges, making a meaningful contribution to UK and global energy and environmental security.

If you are a self-starter capable of managing multiple projects simultaneously, working closely with clients and internal teams to gather requirements, initiate projects, and deliver first-time-right solutions, then we encourage you to apply.

Role Requirements:

• Degree qualified mechanical engineer (or relevant qualification).
• Experience with design codes such as ASME, Eurocodes, BS EN13001, RCC-M, and HS&E legislation.
• Experience in requirements gathering, including functional, non-functional, stakeholder, and regulatory needs.
• Experience supervising optioneering studies to generate design solutions.
• Experience reviewing mechanical engineering substantiation for new or existing plant.
• Proficiency in preparing, reviewing, and approving technical reports and documentation (e.g., calculations, safety case reports).
• Ability to liaise confidently with stakeholders at all levels, both internally and externally.
• Proven success leading engineering projects with varying team sizes.
• Experience delivering mechanical engineering solutions responsibly.

Preferred Experience:

• Experience in safety-critical and regulated environments, including bid writing.
• Knowledge of nuclear industry safety cases.
• Experience with hazard/fault analysis methods (e.g., HAZOP, FMEA).
• Chartered status or nearing application with a relevant professional institute.

Why work for AtkinsRéalis?

We are committed to achieving the UK’s Net Zero target by 2050 through innovative energy solutions across nuclear, renewables, decarbonisation, and energy efficiency sectors.

Benefits:

Enjoy a flexible 'Total Reward' package tailored to your needs, including holidays, health & wellbeing benefits, and career development opportunities. We support diversity and inclusion, providing adjustments for disabilities and flexible working arrangements.

About us:

AtkinsRéalis is a global leader in engineering consultancy with over 100 years of experience, dedicated to delivering sustainable projects worldwide.

Additional Information:

This role may require security clearance, with employment contingent upon obtaining the necessary clearance. UK residency of at least 5 years may be required for vetting purposes. Please do not mention current or previous security clearances in your application.

We promote diversity and inclusion and welcome applications from all backgrounds, cultures, and abilities.