Job Description

Sumo Energy is an Australian-owned energy retailer providing electricity and gas services to residential and small business customers across multiple states. Sumo has built a strong presence through competitive pricing, simple plans, and a customer-first approach.

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Sumo prides itself on delivering "good, honest service"with a strong local focus and commitment to improving the customer experience.

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Sumo combines agility with a strong customer focus—offering a unique opportunity to shape finance in a growing, dynamic environment.

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The Role

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We are seeking a proactive and detail-oriented Finance Officer / Assistant Accountant to support the day-to-day operations of our Finance team. This broad, hands-on role will be responsible for accounts payable and receivable, vendor management, payment processing, bank and credit card reconciliations, cashflow support, and maintaining accurate financial records.

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You will work closely with internal stakeholders, suppliers and external service providers to resolve queries, improve finance processes and support month-end reporting. This is an excellent opportunity for someone looking to broaden their accounting experience and progress their career in a rapid-paced and supportive environment.

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Key Responsibilities:

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Accounts Payable, Receivable (AP/AR) and Vendor Management

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- Process and post supplier invoices, ensuring all required management approvals are obtained.
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- Maintain the Accounts Payable inbox and respond to urgent payment requests and vendor queries.
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- Create and verify new vendor records, including validating bank details through EFTSure to reduce the risk of fraud.
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- Liaise with vendors to resolve invoice, account and payment discrepancies.
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- Prepare electricity wholesale/network counterparties invoicing data and follow up outstanding invoices.
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- Liaise with the Customer Service team regarding customer chargebacks and refunds, including performing checks to confirm accuracy and approval.
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- Manage vendor credit applications and follow up payment-related matters.
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- Prepare concession invoices for government departments, perform sample checks of concession calculations and assist with annual concession audits.
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Cashflow and Treasury Support

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- Maintain and update the daily cashflow statement.
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- Monitor daily cash receipts/expenses and investigate discrepancies or unusual transactions.
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- Monitor daily and monthly cash movements to ensure transactions are accurately recorded and sufficient funding is available.
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- Distribute daily reports, including aged trial balance and cash receipts reports, to relevant stakeholders and business partners.
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- Prepare and circulate high-level loan facility availability calculations, supported by detailed aged trial balance information, to shareholders and other relevant stakeholders.
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Financial Reporting and Reconciliation

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- Complete bank reconciliations, employee expense claims and credit card reconciliations on a timely basis.
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- Perform monthly Accounts Payable and Accounts Receivable reconciliations to ensure invoices are accurately recorded and overdue balances are investigated and explained.
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- Prepare and post journals for commissions, concessions, prepayments, amortisation and other financial adjustments.
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- Maintain the Fixed Asset Register, including recording asset additions, disposals, transfers and depreciation. Reconcile the Fixed Asset Register to the general ledger, and ensuring supporting documentation is retained.
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- Update and maintain gas volume summaries and related supporting reports.
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Regulatory Compliance and Audit Support

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- Provide support for regulatory and financial audits, including Victorian concession audits, annual statutory audits and the BDO semi-annual audit.
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- Prepare supporting documentation and respond to audit queries as required.
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Other Ad-hoc tasks as required

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Essential Skills and Experience:

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- Previous experience in an accounts payable, accounts receivable, finance officer, assistant accountant or similar finance role.
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- Strong understanding of basic accounting principles, including journals, reconciliations, accruals, prepayments and general ledger coding.
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- Experience processing supplier invoices, employee expense claims, credit card transactions and payment runs.
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- Strong Cashflow management skills, including monitoring bank balances, understanding upcoming cash requirements, prioritising payments, and supporting short-term cashflow forecasting.
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- Ability to prepare and update cashflow schedules, identifying timing differences, flag potential funding gaps early, and communicate cash requirements to management.
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- Ability to complete bank reconciliations, AP/AR reconciliations and month-end support tasks accurately and on time.
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- Strong attention to detail, with the ability to identify discrepancies, investigate issues and follow through to resolution.
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- Good Excel skills, including working with large data sets, formulas, reconciliations and supporting schedules.
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- Strong organisational skills and the ability to manage deadlines, competing priorities and recurring finance tasks.
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- Clear communication skills, with the confidence to follow up stakeholders, resolve queries and elevate issues early.
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- Ability to work independently once trained, while also contributing positively within a small finance team.
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- A proactive, reliable and process-driven approach, with a willingness to improve processes and maintain accurate records.
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📌 Senior Finance Officer/Assistant Accountant (Queensland)
🏢 SUMO AUSTRALIA
📍 Queensland