Senior Accountant

Location: Reno, Nevada Schedule: Regular full-time, in office with optional one day work from home Reports to: US Finance Director At ioneer, our mission is to responsibly develop the Rhyolite Ridge Lithium-Boron Project in Nevada and help strengthen the U.S. supply of critical minerals essential to clean energy, advanced manufacturing, and national security. Guided by our People Pledge, we are building a culture rooted in collaboration, accountability, innovation, and respect. About the Role We are looking for a value-driven accounting professional to join our finance team who wants to be part of helping to shape a sustainable future for our people, communities, stakeholders, and industry. The Senior Accountant will be responsible for financial and management accounting, capital project accounting, budget reporting, internal controls, and establishing scalable accounting processes to support a growing mining organization. This role is ideal for someone with experience in large-scale construction, mining development, energy, or other capital-intensive industries who thrives in a dynamic, fast-evolving environment. What We’re Looking For A self-motivated, proactive accounting professional with strong technical expertise, sound judgment, and high attention to detail. The successful candidate will be able to manage multiple workstreams, meet deadlines, communicate effectively with stakeholders at all levels, and work both independently and collaboratively in an evolving environment. This person should bring an energetic, enthusiastic, and solutions-focused approach, with an interpersonal style that supports teamwork, respectful working relationships, process improvement, and strong results. Key Responsibilities Financial Reporting Perform the monthly close process, including journal entries, consolidation workbook, account reconciliations, and supporting schedules. Review 3rd party-generated payroll journal entries for proper mapping and posting in ERP system. Manage monthly cost reporting, including variance analysis, and executive summary cost reports. Prepare financial analysis for key accounts. Account for daily cash activity and prepare cash analysis for review by Finance Director. Review transactions posted by Accounts Payable for input accuracy and make any required month-end corrections. Review and approve new supplier setups in ERP. Review recurring state, county and city tax filings, including sales and use tax. Review annual 1099 filings for accuracy and coordinating distribution. Participate in ERP implementation, system enhancements, and process automation initiatives led by the US Finance Director. Maintain the fixed asset register for non-constructions items. Provide finance support to the US Finance Director, Sydney Finance Manager, and CFO as required. Management Accounting & Budgeting Partner with cost center owners to monitor spending against budget. Monitor project spending against approved budgets. Assist with preparation of annual budgets and rolling forecasts. Controls, Compliance & Audit Strengthen internal controls and processes during organizational growth. Support external audit requirements led by US Finance Director. Business Partnership Serve as a finance resource to the Ioneer team. Participate in cross-functional initiatives supporting the successful transition from exploration to mining operations. Complete additional tasks and projects as requested by the US Finance Director, Sydney Finance Manager, and CFO. Qualifications and Experience 3-5 years accounting and general ledger experience Bachelor’s degree in accounting or finance required Experience performing accounting in a multi-currency environment Previous exposure to the mining industry and/or large capital projects preferred Strong knowledge or experience in: Capital project accounting / Construction-in-progress (CIP) Fixed asset accounting Budgeting and forecasting Internal controls ERP systems (SAP, Ellipse, Oracle, NetSuite, Dynamics, etc.) Exposure and involvement to ERP system implementation is an asset Advanced Excel skills and strong analytical abilities Safety and Culture At Ioneer, safety is a shared responsibility. All employees are expected to take reasonable care for their own safety and the safety of others, follow safe work procedures, report hazards and injuries, and support a workplace culture that prioritizes health, safety, well-being, collaboration, and responsible performance. EEO Ioneer provides Equal Employment Opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, gender identity, pregnancy, national origin, age, disability, genetic information, marital status, veteran status or any other basis protected by regulation where the Company operates. #J-18808-Ljbffr