Commercial Assistant – Infrastructure Projects & Billing

United Infrastructure Group Services Limited; Thame; On-site; GBP 25,000 - 35,000; Full time

Job summary

United Infrastructure is seeking a Commercial Assistant to support the commercial team across the full lifecycle of nationally significant infrastructure projects. You will measure completed works, approve subcontractor supply chain applications, and help manage contracts and payments.

Ideal candidates bring strong numerical and analytical skills, excellent Excel proficiency, and the ability to deliver accurate work under tight deadlines in a collaborative construction environment.

Qualifications

• Strong numerical and analytical skills.
• Proficiency in Microsoft Excel and Office.
• Attention to detail and accuracy under deadlines.
• Experience with standard measurement methods is beneficial.
• Familiarity with construction industry processes.

Responsibilities

• Support commercial team across full project lifecycle.
• Assist with measuring completed works and subcontractor supply chain applications.
• Manage contract administration and subcontractor payments.
• Prepare cost value reconciliations and Earned Value reports.
• Maintain robust commercial documentation and timely reporting.

Skills

Numerical analysis

Excel

Attention to detail

Communication

Teamwork

Time management

Education

GCSEs 5 including Maths & English

Level 4 qualification or equivalent

Tools

Microsoft Office

Job description

United Infrastructure is seeking a Commercial Assistant to support the commercial team across the full lifecycle of nationally significant infrastructure projects. You will measure completed works, approve subcontractor supply chain applications, and help manage contracts and payments.

Ideal candidates bring strong numerical and analytical skills, excellent Excel proficiency, and the ability to deliver accurate work under tight deadlines in a collaborative construction environment.