Commercial Assistant

  • Elbrus Partners Limited
  • Littlehampton, Sussex
  • 26/10/2026
Full time Construction Quantity Surveyor Management Commercial Manager

Job Description

Our client is a growing business who are looking for a driven all-rounder to sit at the heart of the company. You'll run the commercial and back-office side of the business day to day - valuations, invoicing, payroll, buying, CQR reports, and general business management - while helping us build better systems and win new business.

This role is for someone who wants to grow with the business. You don't need to be a fully fledged commercial manager yet, but you'll be ambitious, organised and keen to take on more responsibility as the company grows.

KEY RESPONSIBILITIES

Commercial

- Prepare and submit monthly valuations and applications for payment, including site visits to measure and record progress

- Raise invoices and manage credit control, chasing payments to keep cash flow healthy

- Handle buying and procurement of materials and plant, getting quotes and negotiating the best prices

- Track costs against budgets on each project

Operations & Admin

- Run weekly payroll.

- Build, implement and improve business systems and processes so the company runs smoothly as it scales

- Manage day-to-day back-of-house administration

Compliance

- Complete PQQs, supplier registration and tender documentation

- Keep company compliance up to date - accreditations (e.g. CHAS,SMAS), insurances, and health & safety paperwork

Business Development

- Identify new clients, tenders and opportunities

- Build relationships with main contractors and developers

- Support pricing and tender submissions

ABOUT YOU

Essential

- Experience in an admin, commercial, accounts or operations role - ideally in construction

- Highly organised, with strong attention to detail

- Confident with numbers and spreadsheets

- Good communicator, comfortable dealing with clients, suppliers and site teams

- Self-motivated and able to work independently in a hybrid setup

- Full UK driving licence

Desirable

- Knowledge of construction valuations, CIS and payroll

- Experience with PQQs and accreditation schemes

- Familiarity with accounting software such as Xero

- An interest in growing into a Commercial Manager role