Cost Auditor -
Job Description
Deliver accurate and timely cost audit activity across projects/sites, supporting strong financial governance, cost control and commercial decision-making in a fast-paced environment. Responsible for standardising the cost audit procedure and acting as the primary contact for all cost audits conducted on the JV, working closely with Finance and Commercial teams to develop robust audit-proof processes.
This role will involve travel to operational sites in Sussex/Kent/Isle of Wight when required to complete on-site reviews and stakeholder engagement.
LI-BM1
Responsibilities
Key Responsibilities
- Standardise and maintain the JV cost audit procedure, including templates, test plans, evidence requirements and reporting outputs.
- Act as the primary point of contact for all cost audits conducted on the JV, coordinating requests, timelines, site access and information flows.
- Work closely with client auditors and external partner auditors, ensuring a consistent approach, timely responses and high-quality evidence packs.




- Conduct cost audits on project expenditure, ensuring costs are valid, correctly coded, appropriately authorised and supported by evidence.
- Review and test controls around purchasing, timesheets, expenses, subcontractor payments and stock/materials usage (where applicable).
- Identify cost leakage, non-compliance, process weaknesses and emerging risks; escalate appropriately and support corrective actions.
- Perform variance analysis and trend reviews to highlight unusual movements and opportunities for improved cost control.
- Support month-end activities by validating cost accruals/prepayments and ensuring costs are captured in the correct period where required.
- Work closely with Finance and Commercial teams to maintain robust governance and ensure adherence to internal policies and contractual requirements.
- Partner with Finance and Commercial teams to design, implement and embed robust audit-proof processes, includ

📌 Cost Auditor (España)
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