Thomas Global Systems is a leader in the design, manufacture and support of high-integrity aviation and defence electronics, operating out of locations in Sydney, Australia and Irvine, California.

About the Role

As our HR & Office Administrator, you'll be the face of the office and a key support to our People & Culture function. You'll help deliver a positive employee experience by supporting recruitment, onboarding, employee administration and engagement initiatives, while also ensuring our office operates smoothly and professionally. This is a highly varied role suited to someone who enjoys working with people, loves being organised and takes pride in providing exceptional support and service.

Key Responsibilities

- Support recruitment activities including job advertisements, interview coordination, candidate communications and pre-employment checks.
- Coordinate employee onboarding and offboarding activities.
- Maintain employee records, HR systems and documentation.
- Assist with probation reviews, training administration, HR reporting and employee communications.
- Support employee engagement, recognition and workplace culture initiatives.
- Act as the primary point of contact for day-to-day office administration.
- Coordinate office supplies, facilities,



maintenance requests and vendor relationships.
- Organise meetings, catering, travel arrangements and company events.
- Process invoices, purchase orders and expense claims.
- Maintain meeting rooms, office facilities and communal areas to ensure a professional and welcoming workplace.

About You

We're open to candidates from a variety of backgrounds. Whether you're an experienced administrator looking to expand into HR, or someone seeking a broad and diverse role with opportunities to learn and grow we would love to hear from you. Most importantly you will bring:

- Strong communication and relationship-building skills.
- Excellent organisational skills and attention to detail.
- A professional and confidential approach when handling sensitive information.
- A proactive attitude and willingness to learn.
- Confidence using Microsoft Office applications including Outlook, Word, Excel, PowerPoint and Teams.

Apply Now

If you enjoy variety, thrive in a people-focused role and want to build your career in a supportive and growing organisation, we would love to hear from you. Apply today and join a global aerospace and defence technology company where your contribution is visible!

📌 HR / Office Administrator (Sydney Olympic Park)
🏢 Thomas Global Systems
📍 Sydney Olympic Park