Projects Finance Assistant (AP/AR) – Construction

Colliers; Greater London; Hybrid; GBP 32,000 - 45,000; Full time

Job summary

Colliers in London is seeking a proactive Accounts Payable/Receivable Assistant within the Enterprise Project Solutions – Finance team. You will support processing supplier invoices, align purchase orders with project budgets, and help maintain accurate financial trackers across multiple projects.

The role involves resolving invoice queries, onboarding suppliers, and ensuring CIS and VAT compliance, while contributing to month‑end close and reconciliations to uphold strong financial controls.

Qualifications

• Previous experience in accounts payable or finance administration.
• Strong attention to detail and ability to manage a high volume of deadlines.
• Experience processing invoices, purchase orders and reconciliations.
• Proficiency in Microsoft Excel and finance systems.

Responsibilities

• Accounts Payable and Payment Processing – Process supplier invoices accurately and in a timely manner across multiple projects, validate them against approved purchase orders and contract terms, ensure correct coding to project budgets and cost centres, and support payment runs within agreed terms.
• Principal Contracting Support – Maintain alignment between supplier invoices, purchase orders and project trackers, monitor contractor spend against approved budgets, and support finance and project teams with principal contracting workflows. Prepare finance related client approval documents, ensuring alignment with client requirements and guidelines.
• Invoice Query Management – Act as a first point of contact for invoice queries, liaise with project managers, cost managers and suppliers to resolve discrepancies, and ensure timely resolution to avoid payment delays.
• Supplier Onboarding & Compliance – support onboarding new suppliers, ensuring all required documentation is complete and assist in maintaining compliance with finance and audit requirements.
• CIS & VAT Compliance – Support the administration of the Construction Industry Scheme (CIS), and VAT compliance by helping verify subcontractors, apply the correct CIS deductions, prepare monthly CIS returns, maintain accurate financial records, and ensure supplier invoices are treated correctly for VAT, including domestic reverse charge requirements.
• Month-end and reconciliation – Assist with accruals, month-end close, supplier statement reconciliations and maintenance of accurate records of invoices, payments and outstanding liabilities, while supporting process standardisation across projects.

Skills

Accounts Payable

Finance administration

Attention to detail

Invoice processing

Excel

Tools

Microsoft Excel

Job description

Colliers in London is seeking a proactive Accounts Payable/Receivable Assistant within the Enterprise Project Solutions – Finance team. You will support processing supplier invoices, align purchase orders with project budgets, and help maintain accurate financial trackers across multiple projects.

The role involves resolving invoice queries, onboarding suppliers, and ensuring CIS and VAT compliance, while contributing to month‑end close and reconciliations to uphold strong financial controls.