Commercial Assistant

Commercial Assistant

Location: Bristol / South West (Hybrid Working Available)

Salary: Competitive Salary + Company Car / Car Allowance + Excellent Benefits

An established and highly respected construction business is looking to appoint an experienced Commercial Assistant to support its growing Commercial Team across a diverse portfolio of projects throughout South Wales and the South West.

This is an excellent opportunity for someone with previous commercial administration experience within the construction industry who enjoys working in a fast‑paced environment and wants to develop their career within a business that genuinely invests in its people.

Working alongside Quantity Surveyors and Commercial Managers, you will play a key role in supporting the commercial function from subcontract procurement through to payment administration.

• Support the Commercial Team with the day‑to‑day administration of multiple construction projects.
• Manage subcontractor onboarding and ensure all compliance documentation is completed.
• Prepare and administer subcontract documentation and authorisations.
• Assist with subcontract payment applications and the Goods Received Note (GRN) process.
• Raise consultancy and minor works orders.
• Issue and monitor subcontract tender enquiries.
• Prepare tender analysis and settlement documentation.
• Maintain accurate commercial records and reporting.li>
• Provide administrative support to Quantity Surveyors and Commercial Managers throughout the project lifecycle.

We’re keen to speak with individuals who already have experience supporting commercial teams within the construction sector and who are confident working in a busy project environment.

• Previous experience working within a Commercial Team in the construction industry.
• Excellent organisational and administrative skills.
• Strong attention to detail.
• Proficient in Microsoft Excel, Word and Outlook.
• Full UK Driving Licence.

Candidates with previous CONNECT Software experience will be viewed particularly favourably, as this will allow them to make an immediate impact within the commercial team.

Experience with subcontract administration, procurement processes and commercial documentation would also be advantageous.

• Competitive salary.
• Company Car Allowance.
• Hybrid and flexible working.
• Company pension.
• Ongoing professional development.
• Genuine long‑term career progression.
• Supportive and collaborative working environment.

If you’re looking to join a successful business where you can develop your commercial career whilst working alongside an experienced team on exciting construction projects, we’d be pleased to hear from you.

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