Job Description
Join AC3, a leading Australian ICT provider with a supportive culture.
Manage HR operations, keeping processes smooth and data accurate.
Part-time office role with learning and growth opportunities.
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 are seeking a highly organised and detail-oriented HR Coordinator / Administrator to join our People & Culture team in our Sydney CBD office.
This is a part-time position (3 full days per week, office-based) and is ideal for an HR professional who thrives in a structured, operational environment and enjoys being the engine room behind a high-performing People function.
You will play a critical role in supporting the full employee lifecycle — ensuring HR processes run smoothly, systems remain accurate, compliance requirements are met, and employees receive timely, professional support.
You will work closely with the Head of People & Culture, HR Business Partners, and Advisors, contributing to both day-to-day operations and broader people initiatives that drive organisational impact.
AC3 is dedicated to growing the representation of women in technology and warmly encourages applications from women and underrepresented groups.
What you’ll do
Coordinate end-to-end onboarding to ensure new employees are set up for success from day one
Manage offboarding processes including documentation, system updates, equipment returns, and internal communications
Prepare employment documentation including probation outcomes, salary reviews, promotions, contract variations, and employment confirmation letters
Maintain and update HRIS systems, ensuring high levels of data integrity and accuracy
Liaise with Payroll to support accurate and timely processing of employee changes
Manage the HR inbox and respond to employee queries professionally and promptly
Process corporate card transactions and manage HR-related expenses
What we’d love to see?
Experience in an HR Administrator, HR Coordinator, or similar corporate administrative role
Strong attention to detail and a process-driven mindset
Experience handling documentation, data entry, and reporting
Intermediate Excel skills (e.g., VLOOKUP, HLOOKUP)
Confidence using Office 365 and collaboration tools
Strong interpersonal and communication skills
Ability to work autonomously and prioritise effectively
A plus, if you have…
Experience within a People & Culture / HR team
Exposure to a technology or managed services environment
Experience using HRIS systems
Advanced Excel capability
Tertiary qualifications in HR or a related discipline
WHS certifications or exposure
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?
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
Competitive salary base + Superannuation + Bonus + Allowances
Convenient Sydney CBD location with a modern office environment
Manage HR operations, keeping processes smooth and data accurate.
Part-time office role with learning and growth opportunities.
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 are seeking a highly organised and detail-oriented HR Coordinator / Administrator to join our People & Culture team in our Sydney CBD office.
This is a part-time position (3 full days per week, office-based) and is ideal for an HR professional who thrives in a structured, operational environment and enjoys being the engine room behind a high-performing People function.
You will play a critical role in supporting the full employee lifecycle — ensuring HR processes run smoothly, systems remain accurate, compliance requirements are met, and employees receive timely, professional support.
You will work closely with the Head of People & Culture, HR Business Partners, and Advisors, contributing to both day-to-day operations and broader people initiatives that drive organisational impact.
AC3 is dedicated to growing the representation of women in technology and warmly encourages applications from women and underrepresented groups.
What you’ll do
Coordinate end-to-end onboarding to ensure new employees are set up for success from day one
Manage offboarding processes including documentation, system updates, equipment returns, and internal communications
Prepare employment documentation including probation outcomes, salary reviews, promotions, contract variations, and employment confirmation letters
Maintain and update HRIS systems, ensuring high levels of data integrity and accuracy
Liaise with Payroll to support accurate and timely processing of employee changes
Manage the HR inbox and respond to employee queries professionally and promptly
Process corporate card transactions and manage HR-related expenses
What we’d love to see?
Experience in an HR Administrator, HR Coordinator, or similar corporate administrative role
Strong attention to detail and a process-driven mindset
Experience handling documentation, data entry, and reporting
Intermediate Excel skills (e.g., VLOOKUP, HLOOKUP)
Confidence using Office 365 and collaboration tools
Strong interpersonal and communication skills
Ability to work autonomously and prioritise effectively
A plus, if you have…
Experience within a People & Culture / HR team
Exposure to a technology or managed services environment
Experience using HRIS systems
Advanced Excel capability
Tertiary qualifications in HR or a related discipline
WHS certifications or exposure
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?
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
Competitive salary base + Superannuation + Bonus + Allowances
Convenient Sydney CBD location with a modern office environment
💡 Quick Summary
Seeking a career-building opportunity? The People and Culture Administrator position is now open for candidates interested in the Human Resource (HR) Jobs sector. This role in Sydney offers a professional environment and growth potential.
Requirement Snapshot: Candidates should possess basic communication skills, a proactive attitude, and the ability to work in a team. Experience in Human Resource (HR) Jobs is a plus.
