Senior Accountant

About the Company

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

Responsibilities

• Support the monthly, quarterly, and annual close process
• Prepare journal entries, accruals, and account reconciliations
• Maintain general ledger accuracy across multiple entities
• Assist with preparation of financial statements and supporting schedules
• Track and record expenses, and operational transactions
• Partner with FP&A to ensure accurate budget vs. actual reporting
• Investigate and resolve accounting discrepancies and variances
• Support implementation and documentation of accounting policies and procedures
• Assist with external audits, tax filings, and compliance requirements
• Identify opportunities to improve accounting processes and automation

Requirements

• 3–6 years of experience in accounting, public accounting, or a related role
• Strong understanding of GAAP and core accounting principles
• Experience supporting month-end close processes
• Experience working with ERP or accounting systems
• Strong attention to detail and organizational skills
• Ability to manage multiple priorities in a fast-paced environment
• Strong communication skills and ability to work cross-functionally
• Willingness to be in the office most days

Preferred Qualifications

• Public accounting background
• Background in natural resources, energy, infrastructure, or other capital-intensive businesses