Senior/Principal Mechanical Engineer

AtkinsRéalis

. Lead the design and development of mechanical building services for cleanrooms and high-technology manufacturing facilities .

Posted 4/2/2026full-timeBristol • 🇬🇧 United KingdomSeniorWebsite

About the role

Key responsibilities & impact

Lead the design and development of mechanical building services for cleanrooms and high-technology manufacturing facilities
Provide technical expertise and guidance to the project team and collaborate with multidisciplinary teams to ensure integrated and efficient design solutions
Undertake feasibility and optioneering studies; site surveys and technical assessments
Develop engineering solutions through the design lifecycle from concept through detailed design to commissioning and handover
Ensure compliance with relevant industry standards, regulations and best practices
Manage project budgets, schedules, and resources to ensure the timely and cost-effective delivery
Liaise with clients, contractors and stakeholders to build strong, lasting relationships and to ensure project requirements are met
Perform risk assessments and implement mitigation strategies
Undertake CPD relevant to our clients products and processes
Mentor and support junior engineers, and foster a culture of continuous learning and development

Requirements

What you’ll need

Degree qualified mechanical engineer, building services engineer or other relevant engineering qualification
Chartered engineer status with a relevant professional institute (IMechE or CIBSE), or approaching application for registration
Experience at senior or principal engineer with a focus on the cleanroom and high technology / process manufacturing engineering industries
Previous experience working in a UK regulated industry e.g. semiconductor, pharmaceutical or nuclear would be an advantage
Good analytical and problem-solving skills
Proven track record of leading complex projects from concept to completion
In-depth knowledge of mechanical building services serving high technology industries such as semiconductor cleanrooms, battery manufacturing dry rooms, pharmaceutical manufacturing and containment facilities for biological or hazardous processes
Experience in process equipment / tool hook-up
Knowledge of the design of low back-pressure cooling water systems would be desirable
Knowledge of specialist extract systems such as pyrophoric, acid, high temperature heat and dust extract systems – completion of the British Occupational Hygiene Society (BOHS) Local Extraction Ventilation (LEV) course would be an advantage
Experience working within design codes, standards and regulations typical for the high technology / process manufacturing engineering industries
Proficient in the use of Revit, AutoCAD MEP and other engineering design tools for developing BFDs, PFDs and P&IDs, along with 3D layouts
Proficient in writing, checking and reviewing technical reports and documentation e.g. design calculations, basis of design, safety case reports, design reports

Benefits

Comp & perks

Enjoy competitive salaries
Employee rewards
Brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices
Opportunities for training and professional development to grow your skills and expertise
Hybrid working culture
Flexible holiday allowances

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

mechanical engineeringbuilding services engineeringdesign lifecyclerisk assessmentprocess equipment hook-uplow back-pressure cooling water systemsspecialist extract systemstechnical report writingdesign calculationssafety case reports

Soft Skills

analytical skillsproblem-solving skillsproject managementcollaborationmentoringcommunicationrelationship buildingcontinuous learningleadershipteam support

Certifications

degree in mechanical engineeringChartered engineer statusIMechE membershipCIBSE membership