Office Administrator

Gentari; Sydney; Hybrid; AUD 60,000 - 76,000; Full time

Benefits offered by this job

Hybrid working

Free gym sessions on site

Job summary

Gentari in Sydney CBD is seeking an Office Administrator for a 4-month fixed term maternity leave cover. You will oversee office operations, coordinate facilities and onboarding, and support the HR team to ensure a seamless workplace experience.

You will interact with employees, visitors and service providers, maintaining a proactive, service‑driven approach while collaborating across teams. Hybrid work is available with on-site CBD office access.

Qualifications

• Experience in office administration or facilities coordination.
• HR degree would be highly regarded.
• Strong organisation and prioritisation abilities.
• Excellent stakeholder management and communication skills.

Responsibilities

• Oversee day-to-day office operations, facilities and workplace services.
• Coordinate meeting rooms, visitor management, office supplies and amenities.
• Liaise with external service providers including cleaners, building management and maintenance contractors.
• Support company fleet administration, including registration and CTP.
• Assist onboarding, inductions and workstation setup for new employees.
• Assist travel bookings, purchasing and general administration.
• Coordinate team events, employee engagement and wellbeing initiatives.
• Provide administrative support to HR and the wider business.

Skills

Office administration

Organisational skills

Stakeholder management

Communication

Proactive mindset

Hospitality-style support

Education

HR degree

Tools

Microsoft Excel

Job description

Location: Sydney CBD

Employment Type: Fixed Term Contract – 4 months (Maternity Leave Cover)

Are you passionate about creating exceptional workplace experiences? We are looking for an Office Administrator to join our team on a 4 month Fixed Term contract and become the heartbeat of our office environment! Reporting to the Head of HR & Administration, you will help create a workplace where employees feel connected, supported and set up for success from day one.

About Gentari

Gentari is a global clean‑energy provider expanding across Australia. We develop, own and operate utility‑scale renewable generation and storage assets. As Gentarians, our passion for sustainability fuels our mission to solve the world's most pressing energy needs.

What you will be doing:

In this diverse role, you will oversee office operations, coordinate facilities and suppliers, support employee onboarding, organise engagement activities and provide administrative support across the business. You will be a key point of contact for employees, visitors and service providers, helping deliver a seamless workplace experience every day.

Responsibilities include:

• Manage day-to-day office operations, facilities and workplace services
• Coordinate meeting rooms, visitor management, office supplies and workplace amenities
• Liaise with external service providers including cleaners, building management and maintenance contractors
• Support company fleet administration, including registration, CTP etc.
• Support onboarding, inductions and workstation setup for new employees
• Assist with travel bookings, purchasing, corporate cards and general administration
• Coordinate team events, employee engagement and wellbeing initiatives
• Provide administrative support to the HR team, Executive Assistant and wider business

What you will bring:

• Experience in office administration, workplace coordination or hospitality-style office support.
• An HR degree would be highly regarded.
• Strong organisational skills with the ability to manage multiple priorities.
• Excellent stakeholder management and communication skills.
• Confidence using Microsoft Office applications including Excel.
• A proactive mindset with a passion for delivering great service.
• Strong attention to detail and ability to work collaboratively across teams.

Why Join Us?

Be part of a supportive and collaborative team where you can make a genuine impact on employee experience and workplace culture. This is an excellent opportunity for a highly organized, self-assured professional who enjoys variety and building positive relationships across a business. Enjoy working in a modern office at a great CBD location near public transport and enjoy free gym sessions on site such as Pilates, Yoga and Barre. We also offer flexible hybrid working, with the ability to work from home up to 2 days per week.