Senior Administration Officer - Temp to Perm!

Sharp and Carter; Melbourne; On-site; AUD 100,000 - 110,000; Full time

Benefits offered by this job

Free onsite parking

Job summary

Sharp and Carter is seeking a Senior Administration Officer in Port Melbourne for a temp-to-perm role. You will own day-to-day administration, support site operations and lead a small admin team, with an immediate start.

You will oversee timesheets, payroll, purchase orders and invoicing, coordinate onboarding and site documentation, and act as a hub between site teams, payroll, finance and People & Culture. This hands-on role suits an organised problem-solver committed to process improvements.

Qualifications

• Senior administration experience within construction, electrical, engineering or infrastructure.
• Experience leading a small administration team.
• Strong knowledge of timesheets, payroll, purchase orders and invoicing.
• Highly organised with the ability to manage high volumes and deadlines.
• Proactive problem-solver who takes ownership.
• Strong communication skills and stakeholder management.
• Detail-oriented with a focus on process improvements.
• Experience with Enterprise Agreements, Modern Awards, allowances and outsourced payroll providers (advantageous).

Responsibilities

• Lead and support a small team of administration professionals, coordinating workloads and deadlines.
• Oversee timesheets and payroll administration with internal and outsourced providers to ensure accurate payment.
• Manage purchase orders, invoices and cost-related administration.
• Coordinate onboarding for employees and subcontractors, including inductions and site access.
• Maintain project documentation, registers, reporting and filing systems.
• Act as a key point of contact between site teams, payroll, finance and People & Culture.
• Troubleshoot payroll issues and streamline processes across sites.
• Identify opportunities to streamline processes and improve systems.

Skills

Senior administration

Team leadership

Payroll knowledge

Timesheets management

Invoicing

Stakeholder management

Organisational skills

Process improvement

Job description

Senior Administration Officer - Temp to Perm!

Senior Administration Officer

Port Melbourne | Temp to Perm | $100,000 – $110,000 + Super

Immediate start

The Opportunity

This role is within a growing business in the construction and infrastructure space to find a Senior Administration Officer who can take ownership of day-to-day administration, support site operations and lead a small administration team.

This is a hands‑on role for someone who enjoys keeping things organised, solving problems and making sure everything runs smoothly behind the scenes. You’ll work closely with site teams, project managers, payroll and finance, overseeing everything from timesheets and purchase orders through to onboarding, documentation and general operational support.

The role

• Leading and supporting a small team of administration professionals, coordinating workloads and ensuring deadlines are met.
• Overseeing timesheets and payroll administration, working closely with internal stakeholders and outsourced payroll providers to ensure employees are paid accurately and on time.
• Managing purchase orders, invoices and cost-related administration, ensuring information is accurate and processed efficiently.
• Coordinating employee and subcontractor onboarding, including inductions, site access, uniforms, PPE and compliance documentation.
• Maintaining project documentation, registers, reporting and filing systems.
• Acting as a key point of contact between site teams, project managers, payroll, finance and People & Culture.
• Troubleshooting administrative and payroll issues, following up discrepancies and ensuring matters are resolved promptly.
• Identifying opportunities to streamline processes, improve systems and bring greater consistency across sites.
• Providing hands‑on support across the business wherever needed to keep operations moving.

About you

• Senior administration experience within construction, electrical, engineering or infrastructure.
• Experience leading a small administration team.
• Strong knowledge of timesheets, payroll, purchase orders and invoicing.
• Highly organised, with the ability to manage high volumes and competing deadlines.
• Proactive problem‑solver who takes ownership and follows things through.
• Strong communication skills and confident stakeholder management.
• Detail‑oriented with a focus on improving processes and efficiencies.
• Experience with Enterprise Agreements, Modern Awards, allowances and outsourced payroll providers would be advantageous.

What's On Offer?

• Salary: $100,000 – $110,000 + superannuation.
• Location: Port Melbourne, with free onsite parking.
• Working hours: Flexibility around start times, with starts available between 6:30 am and 9:00 am.
• Opportunity: Temp-to-perm arrangement with the potential to secure a permanent position.
• Environment: A growing business where you can take ownership, work closely with key stakeholders and help shape processes as the organisation continues to evolve.