Senior Project Manager, Energy Storage

on.energy; Houston, Tysons (TX, VA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

ON.energy is expanding its Data Center Projects team in Houston, TX. The Project Manager will lead the full lifecycle of battery energy storage and hybrid energy projects for data centers, ensuring safe, on-time, and on-budget delivery.

You will coordinate with clients and EPCs, manage schedules, budgets, risks, and quality, and drive contractual governance. Travel to project sites in the US and Latin America is expected; bilingual English/Spanish is a plus.

Qualifications

• Bachelor’s degree in Engineering or a related technical field.
• Minimum 5 years of energy project management experience.
• Experience managing EPC contractors and complex infrastructure projects.
• Proficient in scheduling tools (MS Project, Primavera) and budget tracking.
• Willingness to travel to US and Latin America.

Responsibilities

• Serve as primary client contact and align across project stages.
• Manage safety, schedule, budget, engineering, quality, and commissioning.
• Develop and monitor project schedules.
• Own budgets from planning to close-out, including forecasting.
• Identify and mitigate cost, safety, quality, and delivery risks.
• Lead contract negotiations with EPCs and subcontractors.
• Oversee change orders, RFIs, NCRs, and VCNs.
• Ensure timely project documentation and reporting.
• Foster relations with suppliers and partners to improve delivery.
• Support contract close-out and handover.

Skills

Project management

Budget management

Risk management

Client communication

Vendor negotiations

Education

Bachelor’s Degree in Engineering

Tools

MS Project

Primavera P6

Budget tracking software

Job description

Houston, Texas, United States; Reston, Virginia, United States; Tysons

ON.energyis setting the standard for large load interconnection. ON’s patented AI UPS™ is a medium-voltage UPS that serves as a firewall, protecting the data center from the grid, and the grid from the data center.With multiple gigawatts currently under construction, we are enabling grid-safe data centers.

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.

Location: Houston, TX; Reston, Virginia (Hybrid) or Remote

Position Overview:

The Project Manager – 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 will support the Project Executive and 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 one of the primary points 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.

Requirements

• 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.
• 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.

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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
• 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.
• Benefits vary by role and location and are subject to change.