Full-Time

High Value Manufacturing Senior / Principal Mechanical Engineer

Posted on 12/13/2025

AtkinsRéalis

AtkinsRéalis

10,001+ employees

Engineering services for infrastructure and energy

No salary listed

Bristol, UK + 1 more

More locations: Birmingham, UK

Hybrid

Hybrid role requiring on-site work; candidates must be able to work from Bristol or Birmingham offices.

Category
Mechanical Engineering (2)
,
Requirements
  • Degree qualified mechanical engineer, building services engineer or other relevant engineering qualification
  • Chartered engineer status with a relevant professional institute (Institute of Mechanical Engineers or Chartered Institute of Building Services Engineers), or approaching application for registration
  • Experience at senior or principal engineer level with a focus on cleanroom and high technology/ process manufacturing engineering industries
  • Previous experience working in UK regulated industry such as semiconductor, pharmaceutical or nuclear would be an advantage
  • Strong analytical and problem-solving skills and ability to manage uncertainty and technical risk
  • 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 (BOHS Local Extraction Ventilation course would be an advantage)
  • Experience working within design codes, standards and regulations typical for high technology/process manufacturing industries, including: Cleanrooms and controlled environments - BS EN ISO 14644; Pharmaceutical and medical device manufacturing processes - EU GMP and US FDA
  • Containment laboratories/facilities COSHH and ACDP guidance
  • Experience in hazard/fault identification studies, such as HAZID, HAZOP, FMEA etc.
  • Proficient in the use of Revit, AutoCAD MEP and other engineering design tools for developing block flow diagrams, process flow diagrams and piping and instrumentation diagrams, along with 3D layouts
  • Proficient in writing, checking and reviewing technical reports and documentation such as design calculations, basis of design, safety case reports, design reports
Responsibilities
  • 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 continuing professional development relevant to our clients products and processes
  • Mentor and support junior engineers, and foster a culture of continuous learning and development
Desired Qualifications
  • Knowledge of low back-pressure cooling water systems would be desirable
  • Experience in BOHS Local Exhaust Ventilation course would be an advantage
  • Experience with hazard and risk identification methods such as HAZID, HAZOP, FMEA would be an advantage
  • Experience with building information modelling software such as Revit, and AutoCAD MEP for developing BFDs, PFDs and P&IDs and 3D layouts would be an advantage
  • Containment laboratory/containment facility experience would be an advantage

AtkinsRéalis provides engineering services focused on nuclear and infrastructure projects, connecting people, data and technology to transform energy systems and infrastructure worldwide. Its offering combines consulting, design, engineering and project management delivered from concept to commissioning by a global team of experts. The company differentiates itself through its global reach and end-to-end capability across conventional engineering and nuclear sectors, enabling coordinated multi-discipline delivery. Its goal is to improve infrastructure and energy systems worldwide by delivering integrated, high-quality engineering solutions that meet client needs and industry standards.

Company Size

10,001+

Company Stage

Acquired

Total Funding

$2.8B

Headquarters

Epsom, United Kingdom

Founded

1938

Simplify Jobs

Simplify's Take

What believers are saying

  • Australia's AUD 100B annual defence budget by 2033-34 boosts advisory opportunities.
  • AUKUS AUD 50B submarine investment aligns with nuclear engineering capabilities.
  • Investment-grade S&P rating enables acquisitions like Coras and WGA.

What critics are saying

  • Australian regulators block Coras acquisition in 3-6 months over foreign ownership.
  • AECOM undercuts on AUKUS contracts, stripping $500M backlog in 6-12 months.
  • Ontario Power Generation delays Darlington, erasing $2.5B nuclear revenue in 12-24 months.

What makes AtkinsRéalis unique

  • Combines global engineering with Coras' local Australian defence advisory expertise.
  • Acquires WGA adding 800 professionals in transportation, water, and defence infrastructure.
  • Secures record $21.2B backlog from nuclear services and infrastructure projects.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Unlimited Paid Time Off

Flexible Work Hours

Company News

Yahoo Finance
Feb 28th, 2026
AtkinsRéalis reports record backlog of $21.2B and sells Highway 407 stake for $2.6B

AtkinsRéalis Group reported record 2025 results, with revenue rising 13% and backlog reaching a record $21.20 billion. The company completed the sale of its remaining Highway 407 interest for $2.60 billion and secured an investment-grade credit rating, enhancing financial flexibility for growth in engineering and nuclear services. The board reaffirmed a quarterly dividend of $0.02 per share, payable on 27 March 2026. Management maintained 2026 guidance for 5-7% organic revenue growth in engineering services and projected $2.50 billion in nuclear revenue. The company's narrative projects CA$12.80 billion revenue and CA$896.40 million earnings by 2028, requiring 7.4% annual revenue growth. However, investors face execution risks from concentrated nuclear exposure and complex infrastructure contracts that could introduce earnings volatility.

The Associated Press
Feb 27th, 2026
AtkinsRéalis posts $2.6B profit, hits record $21.2B backlog with nuclear revenue up 55%

AtkinsRéalis Group, a world-class engineering services and nuclear company, reported fourth-quarter revenue of $2.9 billion, up 13% year-over-year, with full-year revenue reaching $11.0 billion, up 14%. AtkinsRéalis Services revenue increased 17% in Q4 and 16% for the full year. The company achieved diluted earnings per share from Professional Services & Project Management of $2.14 for 2025, up 80%, whilst adjusted diluted EPS reached $3.36, up 88%. Full-year operating cash flow totalled $461 million, and backlog reached a record $21.2 billion as at 31 December 2025. For 2026, AtkinsRéalis expects Engineering Services Regions organic revenue growth of 5-7% and Nuclear revenue of approximately $2.5 billion. Operating cash flow is projected at roughly $500 million.

Cision
Dec 1st, 2025
AtkinsRéalis Acquires ADG Engineers Australia

AtkinsRéalis Group Inc. has acquired ADG Capital Pty Ltd, an Australian engineering consultancy. This acquisition aims to expand AtkinsRéalis' presence in the Australian market, adding ADG's 250 professionals to its team. The move enhances their capabilities in infrastructure, Defence, and Power & Renewables sectors. ADG, founded in 2002, is known for technical innovation and complex project delivery. This aligns with AtkinsRéalis' strategy of "Delivering Excellence, Driving Growth.

AtkinsRéalis
Nov 10th, 2025
AtkinsRéalis Acquires U.S.-based C2AE Architecture and Engineering Firm

Montreal: November 10, 2025– AtkinsRéalis Group Inc. (TSX: ATRL), a world-class engineering services and nuclear company with offices around the world, announced today that it has acquired C2AE, Inc. (“C2AE”) a Michigan-based architecture and engineering firm with eight locations and

Stock Titan
Mar 13th, 2025
Ferrovial Buys 5.06% 407 ETR Stake

Ferrovial is set to increase its stake in 407 ETR to 48.29% by acquiring up to 5.06% from AtkinsRéalis for [CAD]2.09 billion. The deal includes a 3.30% acquisition at closing and a 1.76% deferred stake via a put and call option. Additionally, AtkinsRéalis will sell its remaining 1.7% stake to CPP Investments, while PSP Investments will acquire a 7.51% interest from CPP Investments. The transactions are expected to close in Q2 2025, subject to conditions.

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