< Back to search

Mott MacDonald • London, UK

Buildings Physics Engineer - HVAC

2 days/week at home

A little flex time – We’re happy to talk flexible working and how we can support your responsibilities beyond the workplace. We offer a range of options depending on your role, so please discuss this with your recruiter.

Apply now

Job Description

Mott MacDonald

We’re a global engineering, management, and development consultancy.
Our purpose is to improve society by considering social outcomes in everything we do, relentlessly focusing on excellence and digital innovation, transforming our clients’ businesses, our communities and employee opportunities.

A fundamental part of this is respecting each person’s differences and striving to meet their needs.

We are proud to be a one of Glassdoor’s top employers to work for in the UK, as well as being recognised as a Top Inclusive Company in the UK.

Our values: Progress, Respect, Integrity, Drive, Excellence.

About the business unit
The Buildings and Cities Unit (BNC) has a major presence in Mott MacDonald's regional offices throughout the UK and mainland Europe, providing a wide range of diverse and transferable cross-sector skills across five key Sectors; Advisory, Built Environment, Energy, Transportation and Water. We also provide local services to customers and technical leadership to the rest of the Group in these sectors.

Overview of role
Our Building Sciences team is growing rapidly, and we are delighted to be seeking highly motivated individuals to join our team of building physics specialists in our division. The team is all about applying the principles of physics to deliver masterplans, buildings and public realms that feel good, are resilient to climate change, operate efficiently and are kind to the environment. Our specialist team has a track record of collaborating closely with stake holders and design teams to deliver a wide variety of projects, both in terms of types and scale, from the iconic Royal College of Art Battersea South building, to devising net zero carbon strategies for the NHS and supporting Cities, Regional and National governments on the pathway to net zero carbon within the built environment.

The role will be providing design and strategic advice to clients and will involve:
• Carrying out thermal modelling of buildings at different scales to determine thermal comfort, visual comfort, energy performance, climate resilience, impacts on climate, carbon assessments etc to guide and assist the design team in implementing the most appropriate design solutions;
• Preparing qualitative assessments to provide early-stage design advice and guidance to the design team and stakeholder, supported by a thorough understanding of building physics behaviour of buildings;
• Developing parametric modelling studies to suit the level of detail required to guide design decisions at building stock level;
• Supporting and coaching junior teammates in delivering projects and upskilling;
• Assisting senior teammates in delivering projects;
• Preparing fee proposals, scope of services and resource programmes; and
• Leading programme and resource management.

Candidate specification
Required qualifications:
• Master's Degree in Building Physics related subjects such as Mechanical Engineering, Environmental Design Engineering, Modern Building Design, Sustainable building design etc; and
• Bachelor's Degree in mechanical engineering, building architecture or similar; and
• Working towards MCIBSE or similar.

Required skills:
• Competency in IES VE and EDSL Tas Engineering modelling packages, on regulatory and design modelling exercises; and
• Experience in IES APACHE HVAC and/or EDSL Tas Systems.

Additional skills:
• Ability to deliver projects using SAP, PHPP and Grasshopper
• Python coding skills
• VBA or similar coding skills
• Competency in delivering projects using one or more of:
• Revit or similar BIM related tool
• EnergyPlus, jEPlus or similar
• Competency in delivering projects using one or more of:
• SketchUP
• Sefaira

• Experience in:
• InDesign
• Photoshop

Ability to receive security clearance


Equality, diversity, and inclusion

We put equality, diversity, and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they can contribute.


We want you to perform your best at every stage in the recruitment process. If you are disabled or need any support to enable you to apply or attend an interview, please contact us at reasonable.adjustments@mottmac.com and we will talk to you about how we can support you.

Agile working

Happy to talk Flexible Working and how we can support your responsibilities beyond the workplace.

We offer some fantastic benefits including:

Health and wellbeing

  • Private medical insurance for all UK colleagues.
  • Health cash plan to support you with every day health costs and treatments.
  • Access to Peppy, providing free support from menopause experts for all UK colleagues.
  • A variety of wellbeing support is available through our comprehensive wellbeing program, including access for you and your family.
  • Ability to flex your salary to opt into a wide range of health benefits, many of which can be extended to your family too.

Financial wellbeing

  • We match employee pension contributions between 4.5% and 7%.
  • Life assurance equal up to 4 x your basic salary, with an option to increase the level of cover to 6 x your salary.
  • Our income protection scheme provides a financial benefit, as well as absence and return to work support due to long-term illness or injury.
  • Flexible benefits, including increased life assurance cover, critical illness insurance, payroll saving and will writing.
  • As an independently owned business we share the financial success of the business with all our colleagues in various ways including annual bonus schemes.


  • A minimum of 33-35 days holiday each year, inclusive of public holidays and dependent on level, with the ability to buy or sell leave through our flexible benefits programme.
  • Holiday entitlement increased to a minimum of 35 days after 5 years’ service.
  • Variety of employee saving schemes and discounts from high-street retailers.

Enhanced family and carers leave

  • Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave.
  • Our shared parental leave matches maternity leave meaning we pay up to 24 weeks at full pay.
  • Up to five additional days leave are provided for those with significant caring responsibilities, two of which are paid.

Learning and development

  • Primary annual professional institution subscription.
  • A broad range of opportunities to enhance both technical and soft skills through mentoring, formal training, and self-development options.

Networks, communities, and social outcomes

  • Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.
  • Make a difference within our communities through our social outcomes.

Apply now, or for more information about our application process, click here.

Company benefits

Open to part-time employees
Adoption leave – 26 weeks full pay
Open to part time work for some roles
Buddy scheme
Flexible working week
Enhanced sick pay
Dental coverage
Compassionate leave
Health assessment
Eye Care Support – Eyecare vouchers
Private GP service – Private Medical care for all UK staff
Season ticket loan
Theme park discounts
Religious celebration leave
Buy or sell annual leave
Accrued annual leave
Caregiver Leave
Enhanced maternity leave – 26 weeks
Enhanced paternity leave – 2 weeks
Shared parental leave – We match up to 24 weeks full pay
Pregnancy loss leave
Tax-free childcare
In office yoga classes
Cycle to work scheme
Faith rooms
Salary sacrifice
Life assurance
Annual pay rises
Pension match/increase
Life insurance
Annual bonus
Income protection
Employee discounts
Professional subscriptions – We pay for your primary professional annual subscription
Lunch and learns
Employee assistance programme
L&D budget
Teambuilding days
More information needed
More information needed
More information needed
Work-life balance
More information needed
Role modelling
More information needed
More information needed

Working at Mott MacDonald

Company employees

18,000 worldwide

Gender diversity (male:female)


Office locations

UK Wide; London, Croydon, Birmingham, Derby, Altrincham, Manchester, Whitehaven, Newcastle, Middlesbrough, Durham, Bristol, Southampton, Reading, Cambridge, Peterborough, Brighton, Norwich, Glasgow, Edinburgh, Aberdeen, Inverness, Cardiff, Newport, Exeter, Leicester, Leeds, Skipton, York

Hiring Countries

United Kingdom

Other jobs you might like