Design Manager; Mechanical

About The Role

We are seeking an experienced Design Manager (Mechanical) to lead and manage the delivery of mechanical design across a range of Building Services projects
. You will work collaboratively with our Commercial, Production and Engineering teams during both pre-construction and construction phases to ensure designs are safe, technically robust, compliant, and aligned with project objectives.

This role suits someone with strong mechanical design management experience who enjoys multidisciplinary collaboration and taking accountability for high‑quality delivery.

• Lead, coordinate and manage all mechanical design activities, from tendering through to project completion.
• Manage internal and external design resources to ensure high‑quality, cost‑effective and compliant mechanical solutions.
• Collaborate closely with Commercial and Production teams to support value engineering, buildability reviews, and technical risk management.
• Review, challenge and approve mechanical designs to ensure compliance with project specifications, legislation and technical standards.
• Oversee mechanical design deliverables and ensure alignment with project programmes and information requirements.
• Chair and participate in design reviews, coordination meetings and multidisciplinary interface sessions.
• Support and drive BIM‑led design development, ensuring model accuracy and compliance with project BIM requirements.
• Ensure all mechanical design documentation and change processes comply with NEC contract obligations and information flow requirements.
• Provide clear technical leadership, advice, and mentoring to project teams throughout design and delivery stages.

You'll Have

• Proven experience as a Mechanical Design Manager or senior mechanical engineer within Building Services or Construction.
• Strong understanding of mechanical building services systems, design standards and technical compliance requirements.
• Good working knowledge of BIM processes and digital design coordination.
• Solid understanding of the NEC form of contract and how it governs design responsibilities, communication, and change control.
• Experience managing external design consultants and steering multidisciplinary inputs.

Day in, day out, our teams deliver some of the UK’s most ambitious, exciting and meaningful projects; developing, building and maintaining the vital infrastructure that supports national economies and strengthens communities.

• Smart working, giving you more flexibility such as staggered start and finish times, with up to 40% remote working, where roles allow.
• 25 days paid annual leave (pro rata).
• Family friendly policies which include 28 weeks full pay for maternity/adoption leave and four weeks full pay for paternity/partners leave.
• Pension, share incentive plan, volunteering leave, recognition schemes and much more.

Operating across England and Wales, our buildings teams create places where people live, are cared for, work, learn, meet and have fun, with a focus on the aviation, health, defence, education and development sectors.

At Balfour Beatty we believe that diversity and inclusion are essential components of any successful, happy workplace. Through our Value Everyone Diversity and Inclusion Strategy and Action Plan, we are growing our diverse workforce and developing our inclusive culture where everyone is able to thrive and reach their full potential, regardless of their identity or background. To find out how we are making this a reality, visit

To help and support us with our desired commitment to create an inclusive culture we are members of WISE, enei, Business Disability Forum and the Association for Black and Minority Ethnic Engineers (AFBE). In 2020, we signed the Audeliss and Involve Open Letter to demonstrate our commitment to taking key long term and sustainable actions on Black Inclusion. Balfour Beatty is also a Gold Award holder in the Ministry of Defence  Employer Recognition Scheme  and actively encourage applications from Armed Forces personnel, veterans and reservists.

As a Disability Confident Employer, we are committed to working with people who have disabilities and long-term health conditions to remove barriers for them in obtaining employment. We are also committed to offering applicants with a disability an interview if they meet the minimum requirements for the role. For more info, visit: https://disabil

We are looking to continually improve our resourcing process and ensure that it is fair and inclusive for all. If you have any feedback on the process, please share this with us at: candidate recruit