HR / Office Administrator

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 varied 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.

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!