We're looking for a Senior Site Manager (Mechanical) to join our internal MEP business at Kier Group. Kier Mechanical & Electrical (KME) is our in-house MEP design and build business, supporting regional and strategic projects across the UK. With a turnover of £80–100m, we deliver innovative solutions in sectors including custodial, commercial, health, and science.

Location: Site Based, Southampton Business Unit: Kier Mechanical & Electrical (KME) Contract Type: Full Time, Permanent

Your role as a Senior Site Manager: As a key member of our site team, you'll be responsible for the effective management and safe installation of mechanical services on site. You'll lead delegated work packages, ensure compliance with specifications, and collaborate closely with engineers, project managers, and other trades to deliver projects on time and to the highest standards.

You'll also:

Ensure all site activities are carried out safely and in line with Kier standards and UK legislation.

Oversee quality control and coordinate services installation.

Maintain accurate records, including site diaries and progress updates.

Support and guide other supervisors and team members.

Promote a culture of safety, inclusion, and wellbeing across your team.

What we need from you:

A strong technical background in mechanical services installation.

Relevant industry-accredited qualifications.

CSCS and SMSTS accreditation (minimum).

A collaborative mindset and commitment to Kier's values of being  Collaborative ,  Trusted , and  Focused .

What you can expect from us: At Kier, we believe in empowering our people. You'll be part of a supportive team where your wellbeing matters, and your career development is a priority. We offer:

A competitive salary and benefits package.

Opportunities for training and progression.

A workplace culture that values diversity, inclusion, and innovation

We're all about finding potential here at Kier, and transferrable skills are always welcome! So, even if you don't tick every box, please apply and we can have a chat.

Rewards and benefits We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here .

Diversity and inclusion Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here .

As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview.

We look forward to seeing your application to #joinkier #LI-AS2