Senior Mechanical Commissioning Engineer

At HDR, our employee‑owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we weave diversity, equity, and inclusion into our work and foster a sense of belonging throughout the company and within our communities, we constantly ask ourselves: What is our impact on the world?

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Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

Responsibilities

• Ensuring that our commitments to our clients are met on time and to the required level of detail and quality
• Validating the mechanical commissioning process and ensuring that the results achieved are in line with requirements
• Inspecting existing systems to determine their performance
• Advising on mechanical commissioning and performance requirements, commissioning strategies, programs, scopes of work and the like
• Carrying out measurements, surveys and other technical inspections
• Collaborating with other members of the organization to improve existing systems and procedures
• Acting as a champion in an area of particular technical interest
• Promoting the company and the whole group through marketing activities
• Forward planning of equipment required for testing
• Assisting in the preparation of tender documents
• Accurate completion of timesheets on a weekly basis
• Proactively assisting other staff in the performance of their work
• Acting safely at all times in accordance with the company's health and safety policies and procedures
• Working diligently, efficiently and professionally at all times
• Ensuring technical compliance and high quality production of our products
• Working closely with the main contractor's team to develop commissioning strategies and processes that fully meet the project objectives
• Fully adopting the company's project and internal management systems
• Maintaining a keen awareness of project finances and control of related expenditure
• Attending meetings as required
• Producing internal and client reports that include technical, commercial and programmatic aspects
• Providing technical commentary on drawings, manuals and technical submissions
• Maintaining awareness and internal reporting of project scope changes
• Working with other members of a professional team to assess progress, difficulties and costs
• Performing hands‑on commissioning work as required

Preferred Qualifications

• BEng Mechanical Engineering with Building Services
• Considerable experience demonstrating project management skills
• Membership of CIBSE, ASHRAE or equivalent professional qualifications an advantage
• At least 5 years of experience in a commissioning engineer role in a building orientated company in the building types Data Centres, Commercial, Residential, Life Science or Health Care
• Worked within company Quality & Environmental policies and procedures
• IT Literate – MS Office package

Required Qualifications

• Must be willing to travel to site‑based locations as reasonably based on HDR needs
• Must be an experienced engineer, either a licensed PE or a field technician with excellent understanding of MEP systems, HVAC controls, the T&B process, etc
• Must have good computer skills and effective typing skills
• Understanding of Microsoft Excel, Word, Outlook, and Project software
• Excellent verbal and written communication skills
• Be familiar with the organization of design documents, the preparation of the multidiscipline designs, and the delivery of the design & construction services
• Strong knowledge of construction practices, systems engineering, operations fundamentals, contracting, and general business operations
• Understanding of project accounting and financial management tools
• Ability to prioritise and organise work; ability to work on multiple tasks concurrently
• An attitude and commitment to being an active participant of our employee‑owned culture is a must

What We Believe

HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organisational trust and connects us closer to the clients and communities we serve.

Our Commitment

As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

Primary Location: United Kingdom-England-London

Industry: Building Engineering

Schedule: Full‑time

Employee Status: Regular

Business Class: Building Commissioning

Job Posting: Mar 2, 2026

At HDR, we are committed to the principles of employment equity. We are an affirmative action and equal opportunity employer ( We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.

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