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Your nearest office: Potters Bar (UK HQ)


Specialist Personnel

O’Neill & Brennan are a RISQS accredited supplier of professional and technical personnel to the rail industry. With an experienced and dedicated team in place, we are able to deliver high quality candidates that ensures your projects run as efficiently as possible, whilst offering an exceptionally high level of customer service throughout the process.

We understand the complexities and demanding nature of the rail industry and how integral health and safety is, which is why we are proud of the many rail specific accreditations that we have that reinforces the commitment we hold towards our staff, the quality of our work, safety management and the environment.

Working across the London Underground and National Rail, we ensure that the candidates we deliver have the essential experience, qualifications and specialist skills tailored specifically to your recruitment needs.  Whether you’re looking for personnel for a large or small project, we have the talent pool and extensive network to deliver a high calibre of specialists.

Areas we specialise in

With an extensive database of Rail professionals and the ability to utilise a wide variety of advertising methods to reach a new network of people, we are perfectly placed to source the candidates you’re looking for across the following functions:


Signalling & Power




Overhead Line Electrification




Civil Engineering

Mechanical & Electrical


Our experienced and dedicated consultants have the resources and knowledge to make your recruitment process as efficient as possible, focusing their skills on recruiting the following roles:

Quantity Surveyor
Senior Quantity Surveyor
Assistant Quantity Surveyor
Managing Quantity Surveyor
Commercial Manager
Commercial Director
Procurement Manager
Senior Buyer and Supply Chain Managers
Senior Planner
P6 Planner
Possessions Planner
SSOW Planners
Planning Manager and Access Planners
Project Management/Delivery
Project Managers
Senior Project Manager
Assistant Project Manager
Scheme Project Manager
Delivery Manager
Site Manager
Contracts Manager
Construction Managers and Project Director
Design Manager
Senior Design Manager
Temporary Works Co-Ordinator
Design Engineer
Contracts Engineering Manager (CEM) Contract Responsible Engineer (CRE) Site Engineers
Project Engineers
Senior Project Engineers
Setting Out Engineers
Health & Safety
Health & Safety Advisor
H&S Manager
Environmental Advisor
Quality Manager and Quality Assurance Managers

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