Project Engineer - EPC projects in BESS (Battery Storage)

Project Engineer - BESS

Our client, 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: Remote considered / Houston, TX or Mclean, VA preferre

dTravel: to project sites across the US, usually up to 30%, but occasionally 50

%
Overvi

• ew
  Support the end-to-end engineering execution of BESS projects for data centers, from development to commissioni
• ng.Manage the technical scope of projects and serve as the technical point of contract to the project manag
• er.Coordinate with internal engineering, procurement, and construction teams to ensure project milestones are m
• et.Collaborate with customers, EPC contractors, OEMs, and design consultants on integration of BESS with data center electrical infrastructu
• re.Review and validate system designs (electrical, civil, mechanical) and vendor submittals to ensure technical compliance and quali
• ty.Design and develop Single line diagrams, Schematics, Wiring diagrams for Battery storage syst
• emsPrepare Electrical Equipment Specifications, Data Sheets, Purchase Requisitions and Bid evaluations for inverters, Switchgear, Transformers and other electrical equipment as requi
• redDevelop Short circuit, load flow, and arc flash studies using software such as ET
• AP.Assist in developing project schedules, procurement plans, and technical documentati
• on.Conduct site walks and support field activities during installation and commissioni
• ng.Participate in Factory and Site Acceptance Testing (FAT/SAT) of BESS components and syste
• ms.Identify technical risks and propose mitigation strategies in coordination with Project Manageme
• nt.Ensure all work is compliant with relevant codes (e.g., NEC, IEEE, NFPA) and On Energy Storage’s internal standar

ds.
Qualificat

• ions
  Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or other engineering discip
• line.3 years of experience in project engineering, preferably within the BESS, electrical infrastructure, or data center sec
• tors.Familiarity with energy storage systems (CATL, Sungrow, Tesla, etc.) and high-voltage infrastruc
• ture.Strong understanding of electrical schematics, single-line diagrams, and equipment lay
• outs.Strong understanding of the electrical system design, system studies, relay coordination, and protection & con
• trol.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 dra
• wingsAbility to manage subcontractors and drive schedule of Engineering activ
• itiesAbility to manage multiple projects concurr
• entlyAbility to problem solve issues and have an “outside the box” ment
• alityStrong attention to detail, with the ability to recognize discrepa
• nciesAble to produce clear and concise document
• ationStrong work
• ethicExcellent interpersonal skills with the ability to work with clients and staff in a
• team.Excellent communication, problem-solving, and cross-functional coordination sk
• ills.Ability to travel to project sites across the U.S. as needed (up to

50%).
Preferred Qualific

• ations
  Experience working on EPC or design-build projects in the energy or critical infrastructure sector in North A
• merica.Familiarity with commissioning protocols and QA/QC procedures for electrical s
• ystems.PE or EIT certification is
• a plus.Hybrid in Houston or Mclean office 3 days