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Mariana Minerals is a software-first, vertically integrated minerals company supplying critical minerals for modern energy, AI, and defense technologies. The company combines deep industry expertise with advanced software, automation, and data-driven decision-making to reimagine the minerals supply chain.
The Senior Accountant will support accounting operations ensuring accuracy, transparency, and reliability across Mariana's growing portfolio of assets and operating entities. This is a hands-on role focused on executing core accounting processes and supporting monthly close, reconciliations, and financial reporting.
Key responsibilities include supporting monthly, quarterly, and annual close processes; preparing journal entries, accruals, and account reconciliations; maintaining general ledger accuracy across multiple entities; assisting with financial statement preparation and supporting schedules; tracking and recording expenses and operational transactions; partnering with the FP&A team on budget vs. actual reporting; investigating and resolving accounting discrepancies; supporting implementation of accounting policies and procedures; assisting with external audits, tax filings, and compliance; and identifying opportunities to improve accounting processes and automation.
The role requires working closely with the Corporate Controller, FP&A team, and operational leaders. As Mariana scales, the accountant will contribute to improving accounting workflows, strengthening internal controls, and implementing systems for efficient financial operations.
Ideal candidates have 3–6 years of accounting or public accounting experience, strong GAAP and core accounting principles knowledge, month-end close process experience, ERP or accounting systems familiarity, strong attention to detail, ability to manage multiple priorities, and cross-functional communication skills. Background in natural resources, energy, infrastructure, or capital-intensive businesses is preferred. The role requires willingness to be in the office most days and work closely with operational teams.
