Lead Quantity Surveyor Assurance Consultant

About the Role

Key Responsibilities Team Leadership

Lead, organize, and supervise the Quantity Surveying and Cost Assurance team, allocating personnel across contractor packages, construction areas, work fronts, and commercial reviews in line with project progress and priorities.

Mentor and provide professional and technical direction to Quantity Surveyor Assurance Associates and other cost/commercial personnel, including onboarding and training as the team scales.

Review and quality-control valuations, quantity assessments, cost reports, variation assessments, claims reviews, commercial observations, and assurance reports prepared by members of the team before issue.

hange proposals to determine their validity, scope, quantities, rates, pricing basis, and contractual entitlement.

Independently measure and value variations arising from design changes, additional works, omissions, substitutions, revised specifications, site conditions, or other approved changes.

Assess the cost implications of changes and advise the Employer on the reasonableness and commercial impact of proposed variations.

Verify whether claimed variations are genuinely outside the original contracted scope.

Review new rates, star rates, build-up rates, quotations, and cost substantiation submitted by contractors.

Maintain and monitor variation registers and provide independent reporting on approved, pending, rejected, and potential variations.

Identify emerging scope changes and potential cost exposure before they materially affect the project budget.

Claims and Contractual Cost Assurance

Review contractor financial and commercial claims, including claims relating to additional works, prolongation, disruption, escalation, acceleration, loss and expense, and other cost-related matters.

Assess claims against applicable contract provisions, contemporaneous project records, measured quantities, approved instructions, programme information, and supporting evidence.

Identify unsupported, duplicated, inflated, or inadequately substantiated elements of contractor claims.

Work with technical discipline leads and project management personnel to establish the technical and factual basis of commercial claims.

Provide independent professional recommendations on contractor commercial entitlements and disputed valuations.

Support the Employer in commercial negotiations, claim resolution, variation settlement, and final account discussions where required.

Cost Control and Financial Monitoring

Monitor committed, certified, forecast, and projected project costs against approved budgets and contract values.

Review project cost reports and independently assess cost performance, expenditure trends, forecast cost-to-complete, and anticipated final cost.

Monitor cost movements resulting from variations, claims, scope changes, procurement changes, construction progress, and other project developments.

Identify potential cost overruns, commercial risks, budget pressures, and emerging financial exposures.

Prepare independent cost forecasts and commercial assessments to support management decision-making.

Review contractor cost reports and reconcile reported financial progress against independently verified physical progress.

Support earned-value, progress, and cost-performance reviews where required.

Identify discrepancies between financial progress and actual construction progress and recommend corrective action.

Contract and Procurement Assurance

Review relevant contract documents, Bills of Quantities, pricing schedules, scope documents, tender documentation, purchase orders, and commercial conditions.

Verify contractor compliance with commercial and payment provisions of applicable contracts.

Review procurement-related cost information where required, including quotations, purchase values, subcontract packages, provisional sums, and prime cost items.

Assess the commercial reasonableness of proposed rates and prices using contractual rates, market benchmarks, historical project information, quotations, and other appropriate evidence.

Support procurement-compliance reviews within IPMC's wider independent audit mandate.

Identify commercial and contractual risks arising from incomplete scope definition, procurement changes, contractor submissions, and project execution.

Progress and Payment Certification

Independently verify contractor physical progress as a basis for interim payment certification.

Work closely with engineering discipline assurance teams to confirm that claimed work has been properly executed and meets the required technical and quality standards before recommending payment.

Reconcile contractor claimed quantities and percentages against verified site progress.

Review materials-on-site claims and verify quantities, ownership, storage, condition, documentation, and contractual eligibility where applicable.

Maintain appropriate audit trails supporting all recommendations for contractor payment certification.

Provide independent professional opinions on the accuracy, completeness, validity, and reasonableness of contractor payment applications.

Support certification of interim payments, milestone payments, variation payments, retention releases, and final payments in accordance with applicable contractual requirements.

Final Accounts and Project Close-Out

Lead the independent review and reconciliation of contractor final accounts.

Verify final measured quantities, approved variations, claims settlements, provisional sums, omissions, additions, and other commercial adjustments.

Reconcile cumulative payments against final contractual entitlement.

Review final account documentation and identify unresolved commercial matters before close-out.

Support settlement and agreement of final accounts between the Employer and contractors.

Maintain comprehensive commercial records and audit trails to support project close-out and future audits.

Assurance Reporting and Risk Management

Prepare and review Quantity Surveying Assurance Reports, Cost Assurance Reports, Payment Certification Reports, Variation Assessment Reports, Claims Reviews, Commercial Risk Reports, and monthly project reports.

Maintain registers of commercial risks, claims, variations, payment applications, certifications, and outstanding commercial matters.

Identify cost, contractual, commercial, measurement, and payment risks and recommend appropriate corrective or preventive actions.

Track agreed commercial actions through to satisfactory close-out.

Present significant commercial findings, cost exposures, disputed items, and recommendations to the Project Director and Employer's representatives.

Provide independent professional opinions on project cost status, contractor valuations, commercial exposure, forecast final cost, and financial completion readiness.

Maintain independence, objectivity, transparency, and appropriate documentation throughout all commercial assurance activities.

Requirements

Bachelor's degree, minimum, in Quantity Surveying, Construction Economics, Cost Management, Commercial Management, or a closely related discipline; a Master's degree is an advantage.

Minimum 12 years of relevant post-qualification experience, including demonstrated experience in a lead or supervisory capacity on industrial, oil & gas, petrochemical, refinery, fertilizer, power, manufacturing, or major infrastructure projects.

Professional registration or chartered status such as MRICS, FRICS, NIQS, RQS, or membership/registration with another recognized professional quantity surveying or cost management body.

Demonstrated experience leading or supervising multi-person quantity surveying, cost, or commercial teams, including mentoring junior and mid-level professionals.

Strong working knowledge of quantity surveying, measurement, cost management, contract administration, valuations, variations, claims, cost forecasting, and final accounts.

Strong ability to interpret Bills of Quantities, engineering drawings, technical specifications, contracts, schedules of rates, construction programmes, cost reports, and project documentation.

Demonstrated experience independently measuring and verifying major industrial and infrastructure

Preferred Certifications and Professional Memberships

MRICS / FRICS

NIQS membership and/or relevant Quantity Surveyor professional registration

PMP

Certified Cost Professional (CCP) or equivalent cost engineering certification

AACE International certification

RICS qualifications relevant to Quantity Surveying and Construction

FIDIC contract management or contract administration certification

ISO 9001 Lead Auditor

Construction Management certification

Claims Management / Contract Management certification

Commercial Management certification

Other equivalent certifications relevant to quantity surveying, cost engineering, contracts, commercial

Minimum qualifications

BA/BSc/HND , MBA/MSc/MA , Professional Certificate

How to apply

If you are a motivated and experienced professional seeking a challenging role, please submit your resume and a cover letter detailing your relevant experience and qualifications to adeyemi.oseni@ipmc-ng.com and copy olayemi.olajuyi@ipmc-ng.com.

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