Senior Site Manager

Location: Chepstow / Newport (ideal)
Projects across South Wales & Bristol
Salary: £60,000 – £80,000 + Package (DOE)

We are currently recruiting for an experienced Project Manager or Senior Site Manager to join a growing and highly reputable construction business, delivering complex refurbishment and decarbonisation projects across South Wales and Bristol.

This is an excellent opportunity for a driven construction professional looking to take full ownership of projects from pre-construction through to completion, working within live environments and alongside a highly collaborative client and consultant team.

The Opportunity

The successful candidate will play a key role in the delivery of a major ongoing scheme in Cardiff, currently programmed through to December 2027, with further projects in the pipeline across the region.

Current works include:

Temporary works packages
Large-scale reroofing works
Full re-windowing packages
Decarbonisation and energy efficiency upgrades
Complex refurbishment works within occupied buildings
This flagship scheme is being delivered within an occupied university environment, requiring a strong focus on programme, stakeholder management, safety, and operational coordination.

Key Responsibilities

Taking full ownership of project delivery from PCSA stage through to completion
Managing all operational and contractual aspects of projects valued between £2m – £8m
Reviewing and understanding contracts, including amendments to standard forms of contract
Managing warranties, guarantees, and contractual obligations
Coordinating design management and consultant teams
Supporting and managing project programmes to ensure delivery milestones are achieved
Liaising with clients, stakeholders, consultants, and specialist subcontractors
Managing temporary works and ensuring compliance across all project stages
Maintaining high standards of quality, safety, and programme performance
Managing live/occupied environments with minimal disruption to end users

About You

We are looking for a proactive and commercially aware individual who can lead projects with confidence and professionalism.

Ideal experience includes:

Proven experience as either a Project Manager or Senior Site Manager within refurbishment, retrofit, or major construction projects
Strong understanding of contracts, liabilities, warranties, and guarantees
Knowledge of design responsibility and design liabilities
Excellent stakeholder and client-facing skills
Strong planning and programming capability
High attention to detail and strong problem-solving ability
Experience delivering projects in occupied environments
Strong technical understanding of refurbishment and building envelope works
Competent using Procore (or similar systems such as Field View, Aconex, or similar project management platforms)
O’Neill and Brennan values diversity and promotes equality, All individuals will be treated in a fair and equal manner and in accordance with the law regardless of gender, marital status, race, religion, colour, age, disability or sexual orientation
Only candidates based in UK and eligible to work in UK are allowed