The Opportunity 

We’re looking for a Senior Site Manager to take ownership of delivering high-quality projects from the ground up. This is a key leadership role where you’ll oversee day-to-day site operations, drive safety and quality standards, and ensure projects are delivered on time and to budget.

You’ll play a pivotal part in shaping successful outcomes, leading your site team with confidence, and building strong relationships with clients, subcontractors, and colleagues. In return, you’ll join a forward-thinking business that values your expertise, supports your development, and offers exciting opportunities to progress your career.

Current Project: HMP Wormwood Scrubs Prison. Pre-construction works are underway, with the main build scheduled to start in February 2026.

What you will be doing

• Maintaining excellent and effective working relationships with the customer and their representatives/advisors
• Implementing Tilbury Douglas Construction's Strategy and Policies for Sustainability, Health and Safety, Quality, Environmental Training and Development etc. and acting as an exemplar of the Company culture and values
• Implementing the Companies Business Management System
• Being proactive in the identification and resolution of problems
• Supporting initiatives to deliver ongoing continuous improvement
• Line management responsibilities, including the undertaking of annual appraisal and development for junior members of staff
• Ensuring that the project works comply with the requirements of the contract specification and drawings etc. and maintaining appropriate records etc to confirm such compliance

What we will need from you

• Appropriate technical knowledge and main contractor construction experience
• Degree (or similar equivalent) in a relevant construction subject (essential)
• Safety Level 1 course; SMST
• Appropriate CSCS Card
• Comprehensive experience as a Site Manager working for a main contractor (essential)
• Technical knowledge and experience
• Commercial and financial awareness
• Excellent interpersonal skills
• Understanding of different contracts e.g. NEC, JCT
• Ideally experience working in a secure or prison environment, with security clearance or ability to obtain security clearance

What we can offer you

• Competitive salary
• Car Allowance
• 26 days annual leave (with the opportunity to buy or sell up to 3 days holiday)
• 3 additional long service days achieved after 3, 7 and 10 years
• Private medical insurance for yourself (with the option to buy family cover)
• Life Assurance
• Defined contribution pension scheme matched up to 8%
• Enhanced maternity, paternity and parental leave
• 2 days volunteering opportunities
• Flexible and Agile working (dependent on your role)
• Employee Assistance Programme 
• Professional membership fees
• Perks at Work Employee discount scheme offering discounts on a range of categories such as electronics, home appliances, food & groceries, car buying, travel, fitness and more
• Flexible Benefits scheme which includes the opportunity to purchase benefits such as:
• Critical illness insurance (with option to purchase for your partner)
• Dental Insurance
• Travel insurance
• Cycle to work scheme
• Retail vouchers/payroll giving/activity pass for top leisure attractions.

Who we are

Tilbury Douglas is a leading UK building, infrastructure, engineering and fit-out company. We deliver vital projects across a range of sectors including health, education, highways, justice, defence, aviation, water and environment.

It is our people who make Tilbury Douglas a success. We believe our inclusive culture encourages new ways of thinking, enabling us to innovate whilst remaining resilient. We value and celebrate all individual differences and look forward to receiving your application.

We are proud to announce that we have retained our Investors in Diversity Silver Award.

Please note that this role is subject to Baseline Personnel Security Standard (BPSS) clearance which includes identity, employment history, and criminal record checks.

Please note we do not have a sponsorship licence.

We look forward to receiving your application!