Controller, Accounting, Financial Controller

Controller

Peak Energy is the first American venture to advance globally proven Sodium-Ion battery systems as the storage standard for the new era of renewable energy on a resilient grid. Sodium-Ion is cheap, readily available and safe, making it the leading contender in a rapidly evolving market. Our leadership team is powered by decades of expertise in scaling gigawatt-level innovation at world-class companies such as Tesla, Northvolt, Apple, Powin, Enovix, Zipline, Solid Power, and Fluence.

We are a team of engineers, operators, entrepreneurs, and partners driven by a shared ambition to set the new performance standard for renewable energy and grid resilience.

About the Role
- Controller

Peak Energy is accelerating the transition to clean, reliable energy through advanced energy storage systems. We are seeking a Controller to be the first dedicated accounting leader at Peak and build our finance infrastructure from the ground up. This role will be hands-on in the near term — taking ownership of the close process, supporting our ERP implementation, and preparing for our initial financial audit — while also laying the foundation for a scalable, best-in-class accounting organization.

The ideal candidate is a technically strong, process-minded accounting leader who thrives in fast-growing, entrepreneurial environments and is motivated by the opportunity to design and own the accounting function end to end.

What You'll Do (Responsibilities)

• Build the Accounting Function
• Establish internal accounting operations previously managed by external providers, including general ledger, AP/AR, payroll, and reconciliations.
• Define the accounting policies, procedures, and internal controls that will support the company's next stage of growth.
• Design and implement scalable processes to support manufacturing, project development, and capital asset activities.
• Develop the company's first monthly close process with clear timelines, responsibilities, and accuracy standards.
• Financial Reporting & Audit Readiness
• Prepare and own monthly, quarterly, and annual financial statements in accordance with GAAP.
• Manage the company's first external audit process, establishing documentation standards and audit-ready controls.
• Develop and maintain chart of accounts, closing checklists, and standard reporting templates.
• ERP Implementation & Systems
• Serve as finance lead for implementation of the company's first ERP system (e.g., Net Suite).
• Partner cross-functionally with Operations, Supply Chain, and Engineering to ensure accounting and operational data flow seamlessly.
• Create systems for tracking inventory, fixed assets, and capital project spend in coordination with other departments.
• Capital Expenditure & Project Accounting
• Implement processes for capital purchases, including purchase order review, asset capitalization, and depreciation policies.
• Work with the project development and operations teams to ensure accurate accounting for construction-in-progress, intercompany allocations, and project costs.
• Support FP&A and leadership in translating financial results into actionable insights.
• Team & Growth
• Build and lead a small but high-performing accounting team over time as the company scales.
• Mentor and develop future team members while maintaining a hands-on approach in the early stages.
• Continuously identify opportunities to improve efficiency, visibility, and control across financial operations.

What You'll Bring (Qualifications)

• Bachelor's degree in Accounting, Finance, or related field; CPA required.
• 7+ years of progressive accounting experience, including experience in-house at a growing company.
• Deep understanding of U.S. GAAP and internal control design.
• Experience leading ERP implementations or major system transitions.
• Strong technical skills paired with willingness to be hands-on in the details.
• Experience in manufacturing, clean energy, or capital project–intensive industries preferred.

Key Competencies

• Attention to detail:
  Does not let stuff slip through the cracks
• Analytical:
  Ability to process qualitative and quantitative data to draw clear insights
• Organized: plans, organizes, and schedules close process, data, and files in productive…