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ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience. 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. Required Qualifications Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or other engineering discipline. 5+ 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 office up to 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. 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. 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.
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.