Who you’ll be working with At AC3, our purpose is to make technology real
- and as leaders in secure multi-cloud solutions, we get to bring that purpose to life for our customers every day. We’re an Australian-owned ICT managed service provider with teams across Australia and New Zealand, supporting enterprise and government customers through secure, scalable technology solutions. Why join us? What sets us apart is our culture
- people here have real relationships that go beyond work, and maintaining our awesome culture, supportive spirit, and belief that everyone is heard and treated with respect, is a top priority at AC3. We’re committed to a workplace that fosters open communication, flexible working arrangements, continuous learning, and providing support to get through life’s changing seasons. We live by the AC3 way
- Work Wise, Work Humble, and Work Honest.

About the role
We’re looking for a motivated P&C; Administrator to join our People & Culture team. This part time role (3 days/week, office-based) is perfect for someone with P&C;/HR or administrative experience who enjoys hands-on HR work and is looking for a flexible part-time role within a supportive team. AC3 is dedicated to growing the representation of women in technology and warmly encourages applications from women and underrepresented groups. What you’ll do
• Assist with onboarding new employees to ensure a smooth start
• Support offboarding processes including documentation and system updates
• Prepare HR documentation such as contract variations, letters, and employee confirmations
• Maintain accurate employee records within HR systems
• Liaise with Payroll to support employee updates and changes




• Manage the HR inbox and respond to employee enquiries
• Assist with HR administration including expenses and corporate card processing What we’d love to see?
• Experience in an HR Administrator, HR Coordinator, or similar administrative role
• Strong attention to detail and a process-focused mindset
• Experience handling documentation, data entry, and record management
• Committed customer service mindset
• Intermediate-Advanced Excel skills and confidence using Microsoft Office 365
• Strong communication and interpersonal skills
• Ability to prioritise tasks and work independently A plus, if you have…
• Experience within a People & Culture / HR team
• Exposure to a technology or managed services environment
• Canva or other design software Even if you don’t check every box, your passion and curiosity matter. If this role excites you, we would love to see your application. What will you gain?
• $42,000 base (part-time) + Super + Bonus + Allowances
• Company benefits including discounted lifestyle services such as health insurance, salary packaging, hybrid work, and half-day Fridays once a month
*
• A culture built on respect, where you can flag conduct that feels off and rely on a fair, confidential process that prioritises your safety and wellbeing
• Join supportive colleagues in groups such as Rise Up (a networking group for women in tech) and Speak Up Advisors
• Access to career development opportunities that help many AC3ers progress year on year
• Flexible hybrid work options and genuine work-life integration
• Convenient Sydney CBD location with a modern office environment

📌 People & Culture Administrator (Sydney)
🏢 AC3
📍 Sydney