Commercial Lead / Quantity Surveyor - Sydney Based

An exciting opportunity has arisen for a Quantity Surveyor to join a global EPC organisation supporting the delivery of major data centre developments.

Working within the Procurement & Contracts team, you will play an significant commercial role across the full project lifecycle—from tendering and procurement through construction, cost control, variation management and final account forecasting.

This is an excellent opportunity for a developing commercial professional who wants to build deeper expertise in mission-critical construction, with exposure across CSA, MEP and specialist packages on complex data centre projects.

Key Responsibilities

Pre-Contract & Procurement

- Support the preparation of **Bills of Quantities (BoQ), Scopes of Work (SOW) and tender schedules** across CSA, MEP and specialist packages.
- Assist with procurement strategy, contractor shortlisting, RFP issuance and technical/commercial clarifications.
- Conduct cost benchmarking and market price analysis to support procurement and commercial decisions.
- Review contractor proposals for completeness, exclusions and potential commercial risks.
- Support pre-award negotiations and preparation of commercial award recommendations.
- Assist with final BoQ reconciliation and project budget refinement.

Cost & Commercial Management

- Support day-to-day contract administration across General Contractor, MEP and specialist vendor packages
- Monitor project commitments against approved budgets and support cost-to-complete and final account forecasting
- Review and verify contractor progress claims and payment applications.
- Monitor contractor compliance with key contractual requirements, deliverables and change notification obligations.
- Maintain alignment between project budgets, procurement awards, approved variations and contingency allowances.

Variation & Value Engineering





- Support the full Variation Order (VO) process, from initial scope assessment through cost validation and commercial recommendation.
- Review contractor variation submissions, including rates, methodology, productivity and material pricing.
- Support commercial negotiations with contractors.
- Undertake Value Engineering and cost-impact assessments associated with changes to CSA and MEP scopes.
- Provide timely commercial evaluations to enable project teams to make informed decisions.

Reporting, Risk & Governance

- Prepare and maintain cost reports, cash-flow forecasts and Cost-to-Complete models
- Support monthly commercial reporting in collaboration with Finance, PMO and project stakeholders.
- Identify potential commercial risks arising from contractor claims, scope gaps and programme impacts.
- Support contract interpretation and commercial risk mitigation.
- Maintain accurate, audit-ready commercial documentation and correspondence throughout the project lifecycle.
- Ensure activities are undertaken in accordance with established procurement policies and contract governance requirements.

Key Requirements:

- Degree in Quantity Surveying, Construction Economics or equivalent from a recognised institution.
- 3–6 years of Quantity Surveying experience, preferably within data centres, industrial or large-scale construction projects.
- Working knowledge of CSA and MEP construction packages.
- Experience supporting procurement, contract administration and Variation Order assessments
- Familiarity with standard forms of contract including FIDIC, PAM or similar
- Strong cost analysis and commercial documentation capabilities.
- Good negotiation and stakeholder communication skills.
- Ability to critically assess contractor submissions using data-backed analysis.
- Ability to manage multiple priorities and deadlines within a fast-paced, mission-critical project environment.

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📌 Commercial Lead / Quantity Surveyor - Sydney Based (City of Sydney)
🏢 Annexion Partners
📍 City of Sydney