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Mechanical Design Engineer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Equans UK & Ireland
Full Time position
Listed on 2026-06-15
Job specializations:
  • Engineering
    Engineering Design & Technologists, Mechanical Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: Greater London

Equans is a renowned energies & services contractor and a proud member of the Bouygues global industrial group. Our expertise spans the design, construction, and maintenance of buildings and critical infrastructure worldwide. We have an exciting new opportunity for a Mechanical Design Engineer interested in the development of renewable heat and thermal energy efficiency projects.

Role focus

This role will focus on the engineering and design development of commercial heat pump applications, HVAC systems improvements and controls, working alongside electrical energy engineers and analysts to deliver low‑carbon retrofit solutions.

The successful candidate will have a strong background in building services engineering and will have a keen appetite to learn and pioneer low‑carbon retrofit. The candidate will have experience in the use of specialist design software, such as REVIT and AutoCAD and a keen interest in digital design tools.

Key activities
  • To prepare design models, utilising proprietary design software, such as AutoCAD, REVIT and Navisworks
  • To prepare thermal energy simulation models, utilising proprietary software, such as IES VE, Hysopt and Energy

    PRO (note work toward etc.)
  • Prepare calculations and engineering analysis for the purpose of validating simulation models, confirming systems design requirements and performances
  • Work within a multidisciplinary design team, collaborating with electrical, structural / civil, architectural, energy and specialist designers to produce coordinated designs
  • Support market research to identify new and emerging technology / design innovations and assess suitability for application to projects
  • Support technical options appraisals to qualify / quantify best available techniques
  • Prepare design / functional specifications and contribute to tender scopes
  • Lead / contribute to Design Stage Reports and associated customer-facing documents
  • Undertake Designer Risk Assessments to identify and minimise health, safety and environmental risks associated with designs prepared
  • With support from colleagues, understand and account for applicable statutory, regulatory and contractual requirements associated with design processes and outputs
  • With support from colleagues, understand and account for physical and environmental constraints associated with design processes and outputs
  • Where applicable, work alongside BIM specialists to provide relevant modelling/design information
  • Undertake non-invasive engineering surveys to support design processes
  • Interpret survey information from others and accommodate within design
  • Undertake technical support during construction and commissioning phases
  • Degree (Bachelors or Masters) in a relevant engineering subject
  • Affiliation with an Engineering Council registered Institution
  • Working within a multidisciplinary design team on multimillion pound commercial MEP projects
  • Experience in the development and design of commercial and industrial HVAC systems between RIBA Stages 1 – 4
  • Working on heating, cooling and ventilation plant design
  • An advanced level of understanding of building services (mechanical) design
  • Good knowledge of British Standards, design guides and the Building Regulations
  • Aware of health and safety and CDM regulations.
  • Competent in standard industry design software, including AutoCAD and REVIT
What can we offer you?
  • On offer is a competitive salary and benefits package, which includes;
  • 25 days annual leave (+ public holidays)
  • 5% bonus
  • Private health
  • Life Cover equivalent to 2 times annual salary
  • Employee discount shopping schemes on major brands and retailers
  • Cycle to work scheme
  • 2 corporate social responsibility days per year
  • Broad range of learning opportunities, such as professional qualifications, collective/individual training, and personalised support programmes
  • Attractive Employee Referral Rewards Scheme
  • Access to our growing employee networks including WiE (Women in EQUANS), RISE (BAME), LGBTQI+, Working Parents, YPN (Young Persons Network) and our Disability Network
  • 24/7 Employee Assistance Program and access to mental wellbeing app

Equans is a world leader in energy services with nearly 100,000 employees working in more than 50 countries, with an annual…

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