Project Engineer - Bess
On.Energy
Houston
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.
Location: Remote considered / Hybrid in Houston, TX or Tysons, VA preferred
Travel: 20-30% travel to project sites in the US
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.
- 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.
- Hybrid in Houston or Mclean office 3 days a week.
#LI-JW1
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.
- Benefits vary by role and location and are subject to change.
Agency Notice:ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.
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