ON.energy
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At ON.energy, we are proud to be an equal opportunity employer, offering a wide range of career opportunities for individuals passionate about driving the energy transition forward. Our culture is dynamic, innovative, and far from the traditional corporate mold. We are built on a foundation of customer satisfaction, teamwork, trust, and an unwavering commitment to excellence.
Joining ON.energy means advancing your career in the energy sector with exciting opportunities across many departments and skill-sets. We embrace diverse perspectives and are dedicated to equipping our team with the tools, resources, and support they need to thrive.
Be a part of a company that values your ideas, fuels your growth, and empowers you to make a meaningful impact in shaping the future of energy.
Open Positions:
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Project Engineer
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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.
Location: Houston, TX or Reston, VA preferred / Remote considered / Hybrid office schedule and travel up to 50%.
Overview
- Support the end-to-end engineering execution of BESS projects for data centers, from development to commissioning.
- Manage the technical scope of projects and serve as the technical point of contract to the project manager.
- Coordinate with internal engineering, procurement, and construction teams to ensure project milestones are met.
- Collaborate with customers, EPC contractors, OEMs, and design consultants on integration of BESS with data center electrical infrastructure.
- Review and validate system designs (electrical, civil, mechanical) and vendor submittals to ensure technical compliance and quality.
- Design and develop Single line diagrams, Schematics, Wiring diagrams for Battery storage systems
- Prepare Electrical Equipment Specifications, Data Sheets, Purchase Requisitions and Bid evaluations for inverters, Switchgear, Transformers and other electrical equipment as required
- Develop Short circuit, load flow, and arc flash studies using software such as ETAP.
- Assist in developing project schedules, procurement plans, and technical documentation.
- Conduct site walks and support field activities during installation and commissioning.
- Participate in Factory and Site Acceptance Testing (FAT/SAT) of BESS components and systems.
- Identify technical risks and propose mitigation strategies in coordination with Project Management.
- Ensure all work is compliant with relevant codes (e.g., NEC, IEEE, NFPA) and On Energy Storage’s internal standards.
Qualifications
- Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or other engineering discipline.
- 3+ years of experience in project engineering, preferably within the BESS, electrical infrastructure, or data center sectors.
- Familiarity with energy storage systems (CATL, Sungrow, Tesla, etc.) and high-voltage infrastructure.
- Strong understanding of electrical schematics, single-line diagrams, and equipment layouts.
- Strong understanding of the electrical system design, system studies, relay coordination, and protection & control.
- Proficiency in Microsoft Office, AutoCAD, power system study programs (Ex. ETAP, SKM).
- Basic understanding of Civil, Mechanical, and Structural work.
- Ability to read and understand project owner specifications and engineering drawings
- Ability to manage subcontractors and drive schedule of Engineering activities
- Ability to manage multiple projects concurrently
- Ability to problem solve issues and have an “outside the box” mentality
- Strong attention to detail, with the ability to recognize discrepancies
- Able to produce clear and concise documentation
- Strong work ethic
- Excellent interpersonal skills with the ability to work with clients and staff in a team.
- Excellent communication, problem-solving, and cross-functional coordination skills.
- Hybrid in Office up to 3 days a week and ability to travel to project sites across the U.S. as needed (up to 50%).
Preferred Qualifications
- Experience working on EPC or design-build projects in the energy or critical infrastructure sector in North America.
- Familiarity with commissioning protocols and QA/QC procedures for electrical systems.
- PE or EIT certification is a plus.
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.
Ready to apply?
Apply to ON.energy
Document Control Specialist - SharePoint Support
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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.
Schedule: Hybrid (3 days in-office / 2 remote)
This role will focus on managing and optimizing document control processes within SharePoint, ensuring efficient document storage, access, and collaboration across teams.
- Administer and maintain document control systems within Microsoft SharePoint
- Organize, structure, and manage document libraries and workflows
- Ensure proper version control, metadata, and document governance
- Support internal teams with SharePoint usage and best practices
- Improve document management processes and system efficiency
- Ensure compliance with company standards and audit requirements
- 8–10 years of document control experience
- Strong expertise in Microsoft SharePoint
- Experience with EDMS (Electronic Document Management Systems)
- Experience designing or managing document management systems
- Strong attention to detail and process-oriented mindset
- Ability to collaborate across teams and geographies
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.
Ready to apply?
Apply to ON.energy
Document Control Specialist - Project Support
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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.
Schedule: Hybrid (3 days in-office / 2 remote)
This role will support project execution by managing, tracking, and maintaining critical project documentation. The ideal candidate has strong experience in construction or energy project environments and is highly proficient in Procore.
- Manage and maintain project documentation throughout the lifecycle
- Ensure proper version control, distribution, and storage of documents
- Coordinate with project teams, contractors, and stakeholders
- Maintain compliance with document control procedures and standards
- Track submittals, RFIs, drawings, and project deliverables
- Support audits and ensure document accuracy and completeness
- 8–10 years of document control experience
- Strong proficiency in Procore (required)
- Experience with ACC (Autodesk Construction Cloud) (required)
- Experience supporting large-scale projects (construction, energy, infrastructure preferred)
- Strong organizational and communication skills
- Ability to manage multiple priorities in a fast-paced environment
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.
Ready to apply?
Apply to ON.energy
Senior Project Manager, Energy Storage
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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.
Requirements
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.
Ready to apply?
Apply to ON.energy
Project Controller - Services
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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.
The Project Controller is responsible for overseeing all financial aspects of service project execution, including preventative and reactive maintenance, performance monitoring, and warranty activities. This role manages budgeting, forecasting, cost control, revenue recognition, cash collection, risk management, and compliance across ongoing service agreements. As a key liaison between Project Management, Finance, and other departments, the Project Controller ensures accurate financial tracking, reporting, and governance throughout the full-service lifecycle, including contract execution, warranty periods, and continuous service delivery.
Key Responsibilities
- Budgeting and Forecasting: Develop and maintain project budgets, update forecasts, and manage cash flow projections
- Cost Control & Analysis: Track project costs, analyze variances, and support corrective action plans
- Project Monitoring & Reporting: Maintain performance dashboards and prepare periodic project financial reports
- Contract: Ensure contract terms are adhered to regarding financial reporting, milestones, liquidated damages and billing
- Risk & Change Management: Assess financial impacts of project changes and integrate approved adjustments into forecasts and billing
- Compliance and Governance: Ensure adherence to corporate, audit, and accounting standards (SOX, GAAP)
- Customer Billing & Invoicing: Oversee accurate and timely billing aligned with contract terms; support AR in resolving issues
- Month End Close: Apply appropriate revenue recognition methods (POC, milestone-based, straight line, time & materials) in accordance with accounting standards
- Oversight: Review and approve purchase orders, invoices, contracts all in line with budget and proper cost allocation
- Claims & Change Orders: Quantify, track, and support financial recovery of claims, variations, and change orders in alignment with contractual terms
- Warranty Management: Track warranty provisions, monitor actual warranty costs against accruals, and ensure appropriate financial reporting during the warranty period
- Commercial & Margin Support: Provide financial insights to improve project profitability and support bid/tender processes with cost benchmarks and risk assessments
Qualifications
- Bachelor’s degree in Finance, Accounting, Engineering, Construction Management, or related field.
- 5–7 years of project-controls experience in service projects
- Strong proficiency with NetSuite, Procore, and advanced Excel;
- Proven ability to communicate complex ideas simply and drive proactive process improvements.
- Takes initiative and contributes actively to a fast-growing, results-driven team
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.
Ready to apply?
Apply to ON.energy
Project Manager, Energy Storage
Share this job
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.
Requirements
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.
Ready to apply?
Apply to ON.energy
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.
On.Energy is a fast-growing, end-to-end clean energy solution provider that develops, engineers, supplies, constructs, commissions, and operates hybrid and standalone energy storage solutions. We specialize in both front-of-the-meter and behind-the-meter applications for utility and commercial/industrial clients across North and Latin America. With proprietary technology like our On.Command Energy Management System and a presence in the U.S., Mexico, Peru, and Chile, we are rapidly expanding our footprint in the Data Center infrastructure market.
Position Overview:
The Project Executive – Data Center Projects is responsible for the full lifecycle execution of battery energy storage system (BESS) and hybrid energy projects for data centers. This role oversees all phases of planning and execution, ensuring projects are delivered safely, on time, within budget, and in compliance with quality and contractual obligations.
Key Responsibilities:
- Serve as the primary point of contact with the client, maintaining alignment across all project stages.
- Manage the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance.
- Develop, maintain, and monitor project schedules using recognized tools and methodologies.
- Own project budgets from initial planning to final close-out, including monthly forecasting and variance tracking.
- Identify, assess, and mitigate project risks related to cost, safety, quality, and delivery.
- Lead contract negotiations with EPCs, subcontractors, and third-party vendors.
- Manage all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner.
- Oversee invoice review and approvals across all phases of project delivery.
- Ensure project documentation, client reporting, and internal reporting is clear, accurate, and timely.
- Foster strong relationships with suppliers and partners to improve execution quality and delivery performance.
- Support contract close-out and final project documentation handover.
Qualifications:
- Bachelor’s Degree in Engineering or related technical field (required).
- Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields.
- Experience with having direct reports as this position will have a Site Project Manager(s) within their organization
- Demonstrated experience managing EPC contractors, negotiating construction contracts, and overseeing complex infrastructure projects.
- Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems.
- Deep understanding of project controls, cost forecasting, and risk management best practices.
- Proven ability to manage multiple complex projects simultaneously.
- Excellent communication and client-facing skills.
- Bilingual English/Spanish preferred (not required).
- Willingness to travel to project sites in the U.S. and Latin America as needed.
Why Join On.Energy:
You’ll be part of a mission-driven team building the clean energy infrastructure of the future. We offer competitive compensation, growth opportunities, and a dynamic international environment where innovation is valued and impact is real.
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.
Ready to apply?
Apply to ON.energy
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.
The Commercial Project Controller plays a critical role in supporting the sales process by ensuring that new project opportunities are financially sound, commercially viable, and aligned with the company’s risk appetite. This role partners closely with cross-functional teams to evaluate deal structures, translate contractual terms into financial outcomes, and support informed decision-making throughout the sales cycle. By strengthening deal quality and improving financial visibility, the Commercial Project Controller helps optimize margins, reduce risk, and enable successful project execution.
Key Responsibilities
- Develop project financial models, cash-flow forecasts, and profitability analyses for new sales opportunities.
- Assess and structure commercial terms, including payment schedules, warranties, guarantees, and liquidated damages (LDs), to align with financial targets and risk guidelines.
- Partner closely with Sales, Sales Engineering, Procurement, Project Management, Legal, and Finance to evaluate assumptions and support contract negotiations.
- Translate contractual language into clear financial implications and provide actionable recommendations to leadership.
- Identify key financial risks within project proposals and prepare concise financial summaries for internal approval processes.
- Apply a strong understanding of revenue recognition principles to ensure deal structures are accurate, compliant, and support proper financial reporting.
- Support the standardization of pricing tools and continuously improve modeling accuracy across the sales cycle.
- Ensure a seamless handover from sales to project execution by providing complete and accurate commercial documentation.
- Contribute to margin optimization and improved forecasting accuracy through scenario analysis and benchmarking.
- Strengthen overall deal quality and financial outcomes across the project pipeline
Required Skills & Experience
- Strong financial modeling, cash-flow forecasting, and project profitability analysis skills.
- Solid understanding of commercial contract terms and their financial impact
- Knowledge of revenue recognition principles and financial compliance requirements
- Experience working cross-functionally with sales, legal, project, and finance teams
- Strong analytical, communication, and stakeholder-management skills
- Ability to clearly present financial insights and recommendations to leadership
- Detail-oriented with a proactive approach to risk identification and mitigation
What You’ll Bring
- A commercial mindset with strong financial rigor
- The ability to balance growth opportunities with risk management
- A collaborative approach and comfort working in a fast-paced, project-driven environment
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.
Ready to apply?
Apply to ON.energy
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.
The Project Controller is responsible for overseeing all financial aspects of project execution, from budgeting to forecasting, cost control, revenue recognition, risk management and compliance. This role is a key liaison between Project Management, Finance and other departments to ensure accurate financial tracking, reporting and governance across the project lifecycle.
Key Responsibilities
- Budgeting and Forecasting: Develop and maintain project budgets, update forecasts, and manage cash flow projections
- Cost Control & Analysis: Track project costs, analyze variances, and support corrective action plans
- Project Monitoring & Reporting: Maintain performance dashboards and prepare periodic project financial reports
- Contract: Ensure contract terms are adhered to regarding financial reporting, milestones, liquidated damages and billing. Support claims preparation and claims resolution
- Risk & Change Management: Assess financial impacts of project changes and integrate approved adjustments into forecasts and billing
- Compliance and Governance: Ensure adherence to corporate, audit, and accounting standards (SOX, GAAP)
- Customer Billing & Invoicing: Oversee accurate and timely billing aligned with contract terms; support AR in resolving issues
- Month End Close: Finalize project margin and accruals; ensure accurate revenue recognition based on Percentage of Completion (POC)
- Oversight: Review and approve purchase orders, invoices, contracts all in line with budget and proper cost allocation. Manage warranties and spare parts, including tracking, coordination, documentation, and timely resolution of warranty-related actions
Qualifications
- Bachelor’s degree in Finance, Accounting, Engineering, Construction Management, or related field
- 5–7 years of project-controls experience in construction, EPC or long term service projects in energy storage industry or similar
- Strong proficiency with NetSuite, Procore, and advanced Excel
- Proven ability to communicate complex ideas simply and drive proactive process improvements
- Takes initiative and contributes actively to a fast-growing, results-driven team
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.
Ready to apply?
Apply to ON.energy
Director of Policy
Share this job
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.
The Opportunity
As Director of Policy, you will define and execute ON.energy’s grid and regulatory strategy at a time when large load growth, interconnection reform, and reliability standards are being rewritten in real time.
This role sits at the intersection of policy strategy, regulatory process and power engineering. At its core, it is an education/advocacy role. You will interact with ISOs, RTOs, utilities, regulators, and policymakers to enable them to understand how On.energy's technology uniquely supports grid reliability and power quality, and how large, flexible loads can be integrated responsibly.
You will partner with the ON.energy COO, CTO, Sales, and CEO to define our market and policy strategy and own execution across ISO territories. Your mandate is to proactively educate and advocate for the wholesale electric market policies, shape technical narratives, and ensure ON.energy is correctly understood in the rooms where energy polict is set.
What You’ll Do
Educate the Grid
- Serve as ON.energy’s policy voice in ISO/RTO stakeholder processes, technical committees, and tariff proceedings.
- Clearly explain how energy policy should consider and value that On.energy's MV UPS addresses grid challenges such as short circuit ratios, voltage and frequency ride-through, reactive power support, and grid-forming vs. grid-following controls.
- Develop technical briefs, presentations, and comment letters that make complex engineering concepts accessible to regulators and policymakers.
Shape the Technical Narrative
- Lead policy engagement for On.energy in regulatory rulemaking and tariff stakeholder proceedings related to large load interconnection, inverter-based resource standards, voltage ride-through, and system strength.
- Proactively identify upcoming NERC, FERC, ISO, and state rulemakings that affect large load integration and help frame the conversation early.
- Partner with the CTO to ensure our product capabilities are accurately represented in planning studies and regulatory discussions.
Strategy & Execution
- Own ON.energy’s ISO/RTO engagement strategy across key markets (e.g., ERCOT, PJM, MISO, SPP).
- Embed regulatory and grid requirements early in engineering design and customer contracting.
- Identify regulatory risks early and resolve them before they slow deployment.
Industry Leadership
- Build trusted relationships with ISO leadership, FERC staff, state regulators, and utility engineering teams.
- Participate in technical working groups and conferences to elevate us as a credible, policy-first voice on large load integration.
What We’re Looking For
- 3-5 years of energy policy advocacy experience.
- Background in power systems engineering, grid operations, or transmission planning.
- Direct experience with ISO/RTO stakeholder proceedings and tariff development.
- Ability to translate technical detail into clear, persuasive communication for non-engineering audiences.
- High ownership, sound judgment, and comfort operating in ambiguity.
- Graduate degree in EE or Energy Policy preferred.
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.
Ready to apply?
Apply to ON.energy
Technical Accountant
Share this job
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.
ON.energy is seeking a Technical Accountant to support complex accounting matters related to renewable energy projects, energy storage assets, project financing structures, and corporate transactions. This role will work closely with finance, development, legal, and operations teams across the organization and will support accounting and financial reporting under U.S. GAAP.
The ideal candidate has strong technical accounting knowledge, experience working with U.S.-based companies or multinational organizations, and excellent analytical and documentation skills.
Key Responsibilities
- Research and analyze complex accounting issues and prepare technical accounting memoranda in accordance with U.S. GAAP.
- Evaluate accounting treatment for project finance structures, joint ventures, leases, equity investments, and debt instruments.
- Support accounting for energy storage projects, asset acquisitions, and project development costs.
- Analyze and document accounting treatment for revenue recognition, consolidation, derivatives, and fair value measurements.
- Assist with financial statement preparation and disclosures in accordance with U.S. GAAP.
- Support month-end and quarter-end close processes related to complex accounting areas.
- Collaborate with internal teams to assess accounting implications of new projects, financing arrangements, and contracts.
- Support external audits and work closely with auditors.
- Maintain and improve accounting policies, procedures, and internal controls.
- Monitor and evaluate the impact of new accounting standards (FASB / U.S. GAAP).
Qualifications
- Bachelor’s degree in Accounting or Finance.
- 4–7 years of experience in public accounting, technical accounting, or corporate accounting.
- Experience working with U.S.-based companies or multinational organizations.
- Strong knowledge of U.S. GAAP accounting standards.
- Experience preparing technical accounting analyses or memos preferred.
- Strong written and verbal communication skills in English.
- High attention to detail and strong analytical capabilities.
Preferred Qualifications
- Experience in renewable energy, infrastructure, utilities, or project-based industries.
- Familiarity with project finance structures.
- Knowledge of accounting standards ASC 606 (revenue recognition).
- CPA (U.S. or Mexico) or progress toward certification is a plus.
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.
Ready to apply?
Apply to ON.energy
Site Project Manager, Energy Storage
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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.
Site Project Manager, Energy Storage
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Serve as the jobsite primary point of contact with the client, maintaining alignment across all project stages.
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Supporting the Project Executive in delivering the full scope of project execution, including safety, schedule, budget, engineering, quality, commissioning, and compliance.
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Develop, maintain, and monitor project schedules using recognized tools and methodologies.
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Support with execution to align with project budgets from planning to final close-out, including monthly forecasting and variance tracking.
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Identify, assess, and mitigate jobsite level project risks related to cost, safety, quality, and delivery.
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Oversee daily on-site operations by monitoring General Contractor and subcontractor activities to ensure alignment with project scope, safety requirements, and quality expectations.
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Oversee vendor on-site activities to ensure adherence to site safety rules, quality standards, and equipment commissioning timelines.
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Lead and facilitate regular coordination meetings with the General Contractor, subcontractors, and client teams to track progress, resolve issues, and align on upcoming work.
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Conduct routine site walks to observe construction activities, validate compliance with design documents, and identify potential risks or deviations early.
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Manage field quality activities include coordinating equipment receipt inspections, managing installation inspections, and ensuring documentation for quality reporting is maintained.
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Support the Project Executive in managing all change orders, RFIs, NCRs, PCNs, and VCNs in a timely and traceable manner.
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Ensue daily JSA/JHAs are in place, morning toolbox meetings occur, safety and commissioning teams are aligned prior to the start of daily activities, end of day meeting to ensure alignment on next days activities and goals.
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Foster strong relationships with clients, suppliers and partners to improve execution quality and delivery performance.
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Support Project Executive in validating subcontractor invoices and payment applications by cross-referencing with field progress and contractual terms.
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Collaborate closely with safety personnel and commissioning teams to ensure daily readiness, compliance with site safety protocols, and startup of new systems.
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Coordinate closely with the Commissioning Site Manager to align construction activities with system readiness, turnover packages, and commissioning schedules
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Support contract close-out and final project documentation handover.
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Bachelor’s Degree in Engineering or related technical field (required).
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Minimum of 5 years of progressive experience in energy project management, preferably in battery energy storage or related fields.
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Demonstrated experience managing EPC contractors and overseeing complex infrastructure projects at project sites.
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Proficient in project scheduling tools (e.g., MS Project, Primavera) and budget tracking systems.
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Deep understanding of project controls, cost forecasting, and risk management best practices.
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Proven ability to manage multiple complex projects simultaneously.
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Excellent communication and client-facing skills.
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Bilingual English/Spanish preferred (not required).
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.
Ready to apply?
Apply to ON.energy