Office Administrator - Part Time

The Office Administrator plays a critical role in ensuring the Sydney office operates smoothly, professionally, and efficiently. This position is suited to someone with solid experience who can run the office with minimal direction, anticipate needs, and confidently support senior stakeholders.

The role focuses on office operations, executive support, vendor management, and event logistics. You’ll be trusted to own the day-to-day details, manage competing priorities, and act as a reliable point of continuity for the site.

This is a part-time, on-site role, working Monday to Friday,10am–2:00pm (20 hours per week). The current office is Chatswood - we are looking at a potential re-location to the Sydney CBD. 

- Own daily office operations to maintain a professional, well-organised workplace.

- Act as the first point of contact for visitors, calls, and general correspondence.

- Manage facilities, office supplies, and service providers with minimal oversight.

- Build and maintain strong relationships with vendors and suppliers.

- Coordinate domestic and international shipments and logistics.

- Independently manage expense submissions for the Australia-based Executive team.

- Prepare, review, and maintain high-quality reports, documents, and presentations.

- Handle sensitive information with discretion and sound judgement.

- Support ad-hoc administrative initiatives and cross-functional coordination.

- Partner with the Executive Administrative Assistant to support high-profile events, including:

- AGM logistics

- Executive offsites

- Leadership meetings

- Plan and deliver local office events and engagement activities end to end.

- 3+ years’ experience in office administration, executive support, or a similar role

- Demonstrated ability to manage an office independently and proactively

- Strong organisational, time-management, and prioritisation skills

-  High proficiency in Microsoft Office (Word, Excel, PowerPoint, Outlook)

- Confidence supporting senior executives and managing external vendors

- A service-oriented mindset with a strong focus on quality, accuracy, and follow-through

 

At Appen, we foster a culture of innovation, collaboration, and excellence. We value curiosity, accountability, and a commitment to delivering the highest quality AI solutions for frontier models.

You’ll work on complex challenges that shape the future of AI across industries and geographies, alongside talented people in a culture that values humility over ego. You’ll have the flexibility to deliver in a way that works for you and your team, supported by tools, resources and development opportunities to continue to build your capability over time.

Appen has been a leader in AI training data for over 30 years. We specialise in human generated data to train, fine tune, and evaluate models across generative AI, large language models, computer vision, and speech recognition. Our AI assisted data annotation platform and global crowd of more than 1 million contributors in over 200 countries support model pre training, supervised fine tuning, evaluation and benchmarking, safety and red teaming, and multilingual global expansion.