Head of Budget Controller

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.

What will you do?

• Lead the global budgeting process, ensuring alignment with overall financial strategy and business objectives.
• Build and structure the budgeting function from the ground up, including processes, timelines, and reporting frameworks.
• Partner closely with FP&A and finance leadership to support financial planning, forecasting, and long-term projections.
• Review, consolidate, and challenge budgets across regions, ensuring accuracy, consistency, and alignment with company goals.
• Analyze monthly, quarterly, and annual performance, providing insights on budget vs. actuals, variances, and key drivers.
• Support the development of financial models and projections, working alongside FP&A to inform decision-making.
• Partner with regional leaders to review variances, track performance, and identify optimization opportunities.
• Ensure strong financial governance and compliance with internal controls across all regions.
• Manage and mentor the Budget Controller US and Budget Controller LATAM.
• Prepare high-level financial reports and presentations for senior leadership.
• Support internal/external audit processes with budget-related documentation.
• Drive continuous improvement in planning, forecasting, and reporting methodologies. 

What are they looking for?

• 5–10+ years of experience in budgeting, FP&A, or financial planning roles, preferably in multinational or high-growth environments.
• Strong experience with budgeting, forecasting, and variance analysis.
• Exposure to financial modeling and projections, with the ability to partner effectively with FP&A teams.
• Proven ability to build or improve budgeting processes and frameworks.
• Strong analytical and problem-solving skills, with attention to detail.
• Advanced Excel and experience with ERP/planning tools (e.g., NetSuite, SAP, or similar).
• Strong communication skills and ability to work cross-functionally and across regions.
• Ability to operate in a fast-paced, evolving environment with a hands-on mindset.
• Fluent English required (Spoken and Written).

For US-based roles - What you’ll get:

• Competitive salary + annual performance-based bonus eligibility
• Medical, dental, and vision insurance
• 401(k) with company match
• Paid time off and company holidays 

For Mexico-based roles - What you’ll get:

• Competitive salary + annual performance bonus eligibility
• Christmas Bonus (Aguinaldo): 30 days
• Major medical expenses and life insurance
• Paid time off and holidays (per local policy)

For all roles:

• Professional development and growth opportunities
• Opportunity to grow with a mission-driven team shaping the future of clean energy
• Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
• Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com
• Benefits vary by role and location and are subject to change.