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Senior Contracts Administrator

10/7/2026

We are seeking an experienced Senior Contracts Administrator to join our Commercial team and support the successful delivery of a major infrastructure project. Based on site, and reporting into the project's commercial leadership team, you will provide expert contract administration services across procurement, subcontract management, cost control, commercial reporting and project compliance.

Perth Park will transform the Burswood Peninsula into Western Australia’s premier destination for sport, music and community events. Featuring Perth’s first outdoor amphitheatre, landscaped parklands and multi-use tracks, this iconic project will create a vibrant space for festivals, cycling, motorsport and more. Seymour Whyte, alongside Civmec and Aurecon, is proud to deliver this legacy development for Main Roads Western Australia

This is an opportunity to bring your commercial expertise to a complex civil construction environment where your ability to identify risk, negotiate outcomes and support project teams will directly contribute to project success.

About the role:

  • Manage subcontract procurement from tender through to close-out
  • Review and administer subcontract agreements and scopes
  • Monitor compliance with head contract obligations and conditions
  • Assess progress claims, variations and subcontractor payments
  • Process costs, accruals and commercial reporting activities
  • Support contract negotiations and commercial risk management
  • Provide commercial guidance to project teams and stakeholders
  • Assist with financial system management, training and process improvement
  • Support the supervision and development of commercial and administration team members

Skills and experience required:

  • Commercial or financial qualifications, or equivalent experience
  • Experience as a Contracts Administrator within a principal contractor environment
  • Strong understanding of subcontract and head contract management
  • Knowledge of project costing, procurement and commercial systems
  • Strong negotiation, communication and stakeholder engagement skills

At Seymour Whyte, we have a range of employee benefits and perks designed to support your career growth, financial wellbeing, health and work-life balance, including opportunities for career progression and recognition, competitive reward programs, flexible leave options to support different life stages, and a range of health, wellbeing and employee assistance initiatives.

  • Generous bonus programs linked to individual and business performance
  • Salary continuance insurance provided to eligible employees
  • Generous parental leave supported by the Parental Support Toolkit
  • Purchased leave (up to four weeks) for flexibility across life commitments
  • Vehicle salary sacrifice and EV novated leasing options
  • Corporate health insurance discounts and EAP mental health support
  • Fitness & wellbeing discounts through WHEREFIT (gym, meal plans, fitness brands)
  • Shopping and lifestyle discounts via Flare and CommBank Workplace Banking

We are a successful civil contracting business who has been operating in Australia for over 35 years. With the agility and personal connection of a Tier 2, yet the expertise of a Tier 1, and the enhanced resources of one of the largest, world-class construction companies, VINCI, our employees and clients get the best of three worlds.

As a progressive, leading civil engineering firm built on the strong foundations of our unique history, we engage, enable and empower our people to be better. With you, we are altogether stronger, in building the future we want. 

Many of our projects are located in regional areas, therefore all applicants must hold a current Driver’s Licence and have their own transport.

Seymour Whyte is an Equal Opportunity Employer, and we encourage applications from candidates with diverse backgrounds, including veterans.

Our commitment to an equitable construction industry extends to an inclusive culture that embraces our differences and gives everyone the opportunity to grow and be equally valued. We're unified in our direction toward having a workplace that is balanced and fair for all.

Next steps

  • Submit your CV online to apply for this role
  • All successful applicants will be required to undergo a pre-employment medical and criminal history check.
  • Applications will only be accepted from candidates who have the right to work in Australia

Register on our website for job alerts to be advised when new roles become available.  https://careers.seymourwhyte.com.au/en/listing/

To learn more about us, visit www.seymourwhyte.com.au

Reference code: 494906

Our internal Talent Acquisition team is managing this role; applications will not be accepted from recruitment agencies.

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Warning to applicants about false job offers and fraudulent proposals

The VINCI group wishes to warn applicants about the online publication of false job offers for contracts abroad in the name of VINCI group companies. The authors of these offers fraudulently use the corporate names, brands and logos of VINCI group companies to deceive applicants, inducing them to reveal personal information and to pay money to obtain alleged services. Under no circumstances do VINCI group companies ask for candidates' bank details or any payment of money as part of their recruitment process. We therefore strongly recommend that applicants check the authenticity of job offers before responding to them.