Invoicing & Administration Officer

2 weeks ago


Sydney, New South Wales, Australia Protex Electrical Group Full time $65,000 - $80,000 per year

Are you detail-obsessed
when it comes to 
invoicing and administration tasks
, and someone who 
thrives when supporting a busy field team
 with
reliable admin and operational support?

Come join our 
young, energetic crew
 and take the reins in a role that makes a 
real impact every day.

We're not your average electrical or HVAC company. 
We're modern tradies—we're professional, proud of our workmanship, and focused on wellbeing.
 Our team brings together insights from a range of industries, picking the best ideas and leaving the rest behind. 
We move fast, set goals, and do what works
—even if it's not the norm. 
We're agile, driven, and laser-focused on delivering the best customer experience
 in electrical and HVAC—backed by the best systems and great people.

Why Join Protex Electrical Group?

  • Competitive salary
     between $65,000 - $80,000 + superannuation based on skills and experience.
  • Choose to work from the comfort of your own home 1–2 days per week
     once onboarding is complete and you're established in the role.
  • All the office tech and gear you need to win
     – sit stand desk, new laptop, monitors etc.
  • Get paid to upskill
    with additional training i.e. estimating, email management etc..
  • Professional branded uniform provided
     including puffer vests, hats, rain jackets, and more.
  • Modern office/warehouse
     with ample 
    free onsite parking
     in a breathtaking location in Oxford Falls. We have a 
    fully equipped kitchen (barista coffee machine included)
    . And a resident Jack Russell 'Toast'.
  • Our office is only a short drive to 
    French's Forest and Narrabeen shopping hubs
    . And when you need some fresh air, 
    we are surrounded by beautiful bush and lagoon walks
    .
  • Be part of a young, high-energy, supportive team with a great team culture
     that has your back. No bureaucratic layered management. We're a 
    tight knit crew that values team work, high quality work, growth, and wellbeing
     – if that resonates you'll fit right in
  • No micromanagement
     – We hire talented people, support them, and get out of their way.
  • Walk into a 
    systemised role where you can thrive
     (but still add your input)
  • Your
    hard work will NEVER go unnoticed
     – we treat our staff like a volunteer workforce – no one is forcing you to be here, so we'll never take you for granted
  • Career progression
     in a 
    growing company.
    We are a small business that is growing fast, which means more opportunities in a variety of roles. Be rewarded.
  • Annual career mapping session.
    In combination with performance reviews, we discuss your career aspirations and how they align with the business.
    Get a clear picture of where you are and where you are going.
  • Work hard, have fun
     – Monthly team catch ups where we grab breakfast, catch up and review the month that has been. Quarterly team events like rock climbing, team workouts, sports events, & dinners We get everyone's input to make sure we all have a blast.

About the Role:

We're looking for a full-time 
Invoicing & Administration Officer
to join our growing team. This role is perfect for a detail orientated person who loves 
crossing t's, dotting i's
, and 
keeping the wheels turning
 behind the scenes — all while working with a great bunch of people.

Your core responsibilities will include:

  • Preparing and issuing accurate invoices
     based on completed jobs.
  • Creating and sending small quotes
    , using pre-built templated pricing.
  • Following up on outstanding quotes
     and communicating with clients where needed. We have standard processes and scripts to make this simple.
  • Managing supplier returns
     and coordinating credit claims.
  • Assisting with warehouse and technician vehicle inventory
     (stock levels, tools, materials).
  • Uniform purchases.

What We're Looking For:

  • Minimum 2 years' experience
     in a similar role.
  • Previous experience
     in 
    invoicing
     and 
    admin
     roles (preferably in the 
    electrical/HVAC trade or construction industries
    ).
  • Familiarity with job management software
     like 
    simPRO
     (
    bonus points
     if you've used it before).
  • Great time management
     and ability to prioritise tasks.
  • Clear, friendly, confident, and calm
     – on the phone, over email, and under pressure

  • proactive, can-do attitude
     - think 'glass half full'
  • Someone who thrives in a 
    young, fast-paced, and high-performance team.
  • High attention to detail –
     please include 'HATD' at the bottom of your cover letter to show you've read this ad carefully.

  • self-starter
     who takes 
    ownership and pride
     in their work.
  • Great communicator
    (written and verbal) with clients, tradies, and suppliers.
  • Tech savvy
     and can pick up systems fast (we use SimPro, Xero, Google Workspace to name a few)
  • And most importantly 
    aligns with our shared values
     of excellence, growth, positivity, and wellbeing

Bonus Points If You Have:

  • Prior experience in the electrical, HVAC, or trade service space.
  • Experience with supplier processes, fleet/vehicle management, or warehouse operations.

Ready to Join the Team?

If you're ready to join a 
high-performing admin and operations team
 where your work matters, 
apply now
 with your 
CV and a short cover letter
 telling us why you're the perfect fit. 
Please include 'HATD' at the bottom of your cover letter to show you've read this ad carefully.

If you're reading this ad, chances are you're not 100% happy in your current role. Remember that life is short. So if you're not happy where you are and you are wanting more – make a change

Take the leap and unlock your full potential with Protex Electrical Group



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