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 diverse 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:
Robust 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 (Australia)
🏢 Thomas Global Systems
📍 Australia