Invoicing Supervisor

Knight Piésold is a specialised international consulting firm offering engineering and environmental services in Mining, Environment, Hydropower, Water Resources, and Roads & Construction Services. We are proud of our long-standing relationships with our clients and of delivering exceptional services on a global scale.

We have a significant track record of projects across Australia, Asia, Africa, and South America. With 29 offices in 16 countries and over 100 years of experience, we work on projects that are geographically and technically diverse. These projects are long-term and offer stability for those wanting to establish a sustainable and rewarding career.

The Role

In order to support our continued growth, we are seeking applications from detail-focused Accounts professionals with experience in an engineering consulting environment to join a supportive, inclusive, friendly, and collaborative team in our Perth office on a permanent full-time basis.

Reporting to the Financial Controller, this role is responsible supervising the end‑to‑end client invoicing for project work, including project approvals, job summary preparation, WIP review, client invoicing, customer onboarding and client forms/questionnaires and oversee resolution of client invoicing queries. A key focus of the role is to improve and progressively automate the currently manual invoicing processes. Duties may include:

• Prepare detailed Excel job / project summaries (time, disbursements) to support invoicing.
• Review debtor invoices and claims in line with contracts and internal policies.
• Review Work In Progress regularly, identify items ready for invoicing and work with Project Managers to clear aged WIP.
• Oversee the investigation and resolution of client invoicing queries.
• Oversee project approval workflows and ensure budgets, rates and billing terms are correctly set up.
• Follow up Project Managers for missing approvals and information required for invoicing.
• Manage customer onboarding and ongoing account maintenance, including completing and coordinating client account/vendor setup forms, client questionnaires and other finance/commercial documentation related to billing, credit or account setup, liaising with internal stakeholders for required information.
• Maintain documentation and audit trails to support invoices and assist with audit requests.
• Identify and implement improvements to invoicing, WIP and project‑approval processes.
• Identify opportunities to streamline and automate the current manual invoicing, WIP and reporting processes and lead or support implementation of agreed improvements

Our Ideal Candidate

To excel in this role, you will have the following:

• 5+ years experience in invoicing and project accounting in a consulting environment.
• Previous experience supervising a team.
• Strong Excel skills (job summaries, reconciliations, analysis).
• Experience with Work In Progress and project systems.
• Experience dealing directly with clients on invoicing queries and claim support.
• Demonstrated ability to improve and/or automate manual finance or invoicing processes, including designing and implementing more efficient tools or workflows.
• Experience with customer onboarding, vendor / client setup forms and completing client questionnaires.
• High attention to detail, strong organisation, and clear communication with both finance and non‑finance stakeholders.

What We Can Offer

Knight Piésold offer excellent remuneration packages and a competitive range of benefits including:

• Generous performance bonus incentive programs;
• Subsidised gym memberships / fitness classes;
• Training and development opportunities to develop and strengthen your skills;
• Referral bonuses;
• Early access to long service leave; and
• Access to our Employee Assistance Programme

If you believe you have the skills and experience outlined above, we would love to hear from you.

Please click ‘Apply’ or submit your resume and cover letter to Sign in to view email.

Due to the high volume of applications we receive, please note that only shortlisted applicants will be contacted.