Hello, we’re Mustard and we make colourful furniture designed to bring joy to everyday spaces. We’re a growing, design‑led brand selling direct to customers around the world, alongside an expanding B2B channel.

Behind the colourful lockers is a global product business operating across Australia, the UK, Europe and the US. We work with two legal entities, multiple currencies, international suppliers and warehouses, and both ecommerce and wholesale customers. That brings plenty of variety and complexity to the work our Finance team does every day.

We’re collaborative, practical and kind. We care about doing good work, taking responsibility and finding simpler ways to get things done. We’re looking for an Assistant Accountant to join our Newcastle Finance team and help us keep building on that.

Newcastle, NSW | Full time | Hybrid

About Mustard Made

Hello, we’re Mustard and we make colourful furniture designed to bring joy to everyday spaces. We’re a growing, design‑led brand selling direct to customers around the world, alongside an expanding B2B channel.

Behind the colourful lockers is a global product business operating across Australia, the UK, Europe and the US. We work with two legal entities, multiple currencies, international suppliers and warehouses, and both ecommerce and wholesale customers. That brings plenty of variety and complexity to the work our Finance team does every day.

We’re collaborative, practical and kind. We care about doing good work, taking responsibility and finding simpler ways to get things done. We’re looking for an Assistant Accountant to join our Newcastle Finance team and help us keep building on that.

The Role

This is a hands‑on Assistant Accountant role working closely with our Management Accountant and Head of Finance to keep Mustard’s financial records accurate, complete and reliable across our global business.

You’ll take ownership of day‑to‑day accounting, reconciliations, payroll and assigned month‑end activities, while supporting tax and compliance requirements across our international markets. You’ll also help improve our Finance systems, processes and controls as the business continues to grow.

This role will suit someone with solid accounting foundations who enjoys getting into the detail, solving problems and taking responsibility for their work. You’ll have the confidence to manage established processes independently, know when to ask questions and enjoy finding simpler, better ways of doing things.

What’s in it for you?

The chance to be part of a team in a company that’s scaling fast
Work on exciting projects that directly impact customers around the world




Collaborate with passionate teams who love what they do
Be part of a growing business where your ideas can shape how we do things

What you’ll be doing

Accounting + month-end

- Month‑end: Own assigned close activities, including journals, accruals, prepayments and supporting schedules, delivering accurate work within agreed deadlines.

- Reconciliations: Prepare balance sheet, bank and other allocated reconciliations, investigate differences and provide complete workpapers ready for review.

- Financial accuracy: Review transaction coding, cost allocations, fixed asset records and supporting information, resolving discrepancies to maintain accurate and reliable financial records across our business.

- Financial analysis: Investigate movements in assigned costs and accounts, helping our Management Accountant understand what has changed and why.

Payments + day‑to‑day finance

- Accounts payable: Manage our day‑to‑day AP process, including invoice capture, coding, coordinating approvals, supplier queries and payment preparation, ensuring invoices are accurately recorded and processed on time across our entities.

- Receivables + banking: Reconcile customer receipts and remittances, resolve payment queries, prepare payment runs and maintain bank and card reconciliations.

- Supplier + financial records: Maintain accurate supplier information, banking details and supporting records, ensuring payments are processed correctly and appropriate financial controls are followed.

Payroll + tax support

- Payroll: Take ownership of payroll preparation, including coordinating inputs, preparing calculations and reconciliations, and investigating discrepancies to ensure payroll is accurate and ready for review and approval.

- Australian BAS: Prepare GST reconciliations, supporting workpapers and draft BAS information for Management Accountant review, as we progressively develop this work in-house.

- International compliance: Provide accurate information and reconciliations for UK VAT, EU OSS, US sales tax and other obligations, working with our Finance team and external specialists.

Systems + improvement

- Finance systems: Investigate differences between operational systems and the general ledger, helping improve the quality and consistency of financial data.

- Better ways of working:



Identify opportunities to simplify recurring tasks, improve controls and reduce manual work as our systems develop.

- Collaboration + ownership: Work closely with other teams and external Finance partners to resolve queries, maintain clear processes and independently manage your responsibilities, ensuring work is completed accurately and on time.

Hello, is it you we’re looking for?

You’re a practical, capable accountant who likes getting the details right, but also enjoys understanding how the whole business works.

You’ll bring:

- Relevant hands‑on experience in an Assistant Accountant or similar finance role.
- A sound understanding of accrual accounting, journals, general ledger coding and balance sheet reconciliations.
- Confidence independently managing recurring accounting work, AP and deadlines, with good judgement about exceptions.
- Experience supporting month‑end close and producing accurate, review‑ready workpapers.
- Strong Excel skills, attention to detail, clear communication and a practical approach to solving problems.

Progress towards CA/CPA, or another relevant accounting qualification, would be highly regarded. Experience with Xero, payroll, BAS, multiple entities, retail, wholesale, inventory or ecommerce would be useful, but you don’t need to have done all of these.

How we work

We’re collaborative, practical and kind.

We believe in getting better every day, in small, meaningful ways. We care about doing good work, supporting each other and building something we’re proud of. Ideas are welcomed, ownership is shared and progress is steady.

This is an opportunity to make a meaningful contribution to how Finance works at Mustard, helping us build reliable processes and better systems as our global business grows.

HOME

Flexible working hours
Hybrid office schedule (3 days in-office)

WORK

Listed in the AFR Fastest Growing Companies in Australia in 2025 and 2026
Named in The Sunday Times Best Companies to Work For 2025
Colourful office space in Newcastle, NSW
Your own personal and professional development budget
Listed in The Times Fastest Growing Companies in the UK in 2023
#3 in The Times Best Companies To Watch Out For 2022
Immediate start to the right candidate

PLAY

20 days holiday (plus public holidays)
Plus an extra day for your birthday!
Regular team lunches + creative socials
50% team discount on Mustard products

We highly encourage people of all cultures, ethnicity, abilities and sexual orientation to apply. If you don’t meet all of the criteria, we still highly encourage you to apply and tell us why you think you’re the right person for the job.

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📌 Assistant Accountant (Newcastle)
🏢 Mustard Made
📍 Newcastle