About this role.
AECOM is seeking a senior Electrical Engineer with a focus on Battery Energy Storage Systems (BESS) to join its US Energy Practice. The role entails leading electrical design for renewable projects including solar PV and BESS, from feasibility through commissioning. Responsibilities include system design, energy modeling, specification development, and cost estimation. The ideal candidate is a technical leader with a strong power engineering background and experience in distributed energy solutions. This remote-friendly position offers the opportunity to work on cutting-edge renewable energy projects across the country.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Job Complexity
3/5Pace & Pressure
4/5Autonomy Level
4/5Communication Load
4/5Salary analysis
Estimated compensation compared with the broader US market for similar roles.
Core skills
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Cover letter sample
Dear Hiring Manager,
I am excited to apply for the Electrical Engineer (BESS Focus) position at AECOM. With a strong background in power engineering and extensive experience in designing battery energy storage and solar PV systems, I am confident in my ability to contribute to your renewable energy projects. My expertise includes system design, utility interconnection, and energy production modeling, which align perfectly with your requirements.
At my previous role, I successfully led the electrical design of multiple utility-scale BESS installations, delivering projects on time and within budget. I am adept at using tools like PVsyst and AutoCAD, and I have a thorough understanding of NEC codes. I thrive in collaborative environments and am eager to bring my technical leadership to AECOM’s global team.
Thank you for considering my application. I look forward to the opportunity to discuss how my skills can support AECOM’s mission to deliver a better world.
Sincerely,
[Your Name]
Sample interview questions
I have designed multiple BESS systems ranging from 10 MW to 100 MW. For DC string sizing, I start with the battery manufacturer's specifications and calculate maximum voltages and currents under worst-case temperature conditions. I select inverters based on system voltage, power rating, and compatibility with the battery management system. I also consider charging/discharging strategies to optimize cycle life.
I stay updated with the latest NEC articles, particularly 690 (Solar PV) and 706 (Energy Storage). I pay close attention to conductor sizing, overcurrent protection, grounding, and rapid shutdown requirements. I typically create a compliance checklist and review designs at each phase to ensure code adherence.
I start with a site survey and existing conditions. Then I develop a single-line diagram, followed by plan views for array layout, conduit routing, and equipment locations. I coordinate with structural and civil disciplines. Detailed sections and details are added for installation clarity. Finally, I include schedules for panels, inverters, and BESS components.
During commissioning of a 20 MW BESS, we noticed lower than expected round-trip efficiency. I reviewed the battery management system data and found that the HVAC system was cycling too frequently, drawing parasitic load. I coordinated with the HVAC engineer to optimize setpoints, which improved efficiency by 3%. I also documented the issue for future reference.
I subscribe to industry journals like PV Magazine and Energy Storage News, and attend conferences such as RE+ and ESA Annual Conference. I also participate in online forums and take courses on new battery chemistries like lithium iron phosphate and solid-state batteries. Networking with peers helps me understand practical applications.
Company Description
Work with Us. Change the World.
At AECOM, we’re delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world’s trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.
There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.
We’re one global team driven by our common purpose to deliver a better world. Join us.
Job Description
AECOM has a position available for an Electrical Engineer to strengthen our talented team of engineers and designers working on renewable projects across the country for the US Energy Practice. For this role, AECOM offers the freedom and flexibility to work remotely and/or be located at a variety of Energy offices located in multiple locations across the United States.
Our team provides a wide range of engineering services in support of projects across the country with renewable project scopes such as commercial and industrial installations focused on resiliency, efficiency and reliability as well as those utility scale projects seeking to power communities via interconnected networks or high-density installations. Areas of focus include solar photovoltaics (PV), including new technologies in agrivoltaics and floating PV, energy storage (e.g. BESS, supercapacitors), interconnection, wind repowering, next generation energy generation (e.g. fuel cells), new site development, data centers and more.
Focused on a BESS experience, we are looking for a strong candidate with a power engineering background to promote our skills to new clients and maintain our existing client base.
Qualified candidates are those established technical leaders with a diverse background in distributed energy solutions committed to quality project delivery with an interest and curiosity in devising innovative solutions.
The responsibilities include, but may not be limited to, the following:
- Responsible for the electrical engineering design work on assigned projects under the guidance of senior staff
- Work with Project Engineer and Project Manager on developing design schedules and budgets for electrical engineering work activities
- Solar PV and BESS system design including array layouts, DC string sizing, equipment layouts, and utility interconnections for rooftop, carport, and ground mount (fixed tilt and single-axis tracking) systems
- Solar PV and BESS system energy production modelling
- Developing construction and equipment specifications
- Engineering calculations (NEC maximum system voltage, conductor sizing, overcurrent protection sizing, utility disconnect requirements, voltage drop, and conduit sizing)
- Engineering development and support of construction drawing developments – one lines, network diagrams, etc.
- PV and BESS system cost estimation and payback evaluations
- DC and low to medium voltage power distribution design
- Supporting projects through complete life cycle including the feasibility phase, preliminary and detailed design, issue-for-bid, construction, start-up, and commissioning
- Participating in and presenting at meetings including those requiring occasional travel
At AECOM, we’re delivering a better world.
At AECOM, we believe infrastructure creates opportunity for everyone. Whether it’s improving your commute, keeping the lights on, providing access to clean water or transforming skylines, our work helps people and communities thrive. We take on the most complex challenges and pioneer innovative, iconic solutions that push the limits of what’s possible – the world’s longest cable-stayed bridge, record-breaking sports events, the largest greenfield port development mega project, life-sustaining disaster recovery programs, and the tallest tower in the Western Hemisphere. On projects spanning transportation, buildings, water, energy and the environment, we deliver professional services throughout the project lifecycle.
We are proud to be recognized for excellence:
- Named one of Fortune magazine’s “World’s Most Admired Companies” for the eleventh consecutive year
- Ranked #1 in Engineering News-Record’s in Environmental Engineering, Facilities, Water, Transportation, Green Design, Airports, and more
- Named one of TIME Magazine’s Best Companies for Future Leaders
DCS—Energy
AECOM’s Energy practice provides a wide range of services from consulting and engineering design to engineering, procurement and construction (EPC) for power, energy efficiency, and renewable energy clients. Our understanding of the big picture – and the interconnection between generation, distribution, storage, and behind the meter services – allows us to deliver holistic strategies that improve and modernize next generation energy infrastructure. We connect knowledge and experience across our global framework to bring together a unique combination of engineers, planners, scientists, and project managers who advance cleaner, secure, and more sustainable energy solutions.
Qualifications
Minimum Requirements
- BA/BS in Electrical Engineering or Engineering related discipline and 4 years of relevant experience or demonstrated equivalency of experience and/or education.
- Demonstrated experience in design and integration of utility-scale renewable and battery storage systems.
Preferred Qualifications
- Current professional engineering license (PE) and ability to attain additional states by comity
- 8+ years of relevant experience preferred
- Proficient in industry software such as Homer, NREL SAM, ForgeSolar, and Helioscope
- MV AC Collection System Design Experience
- Protection and Controls Experience
- Knowledgeable in power system modeling in ETAP and/or SKM
- Strong familiarity with the NEC, as well as related codes such as IBC and NFPA 855
- Familiarity with utility practices, industry codes and standards (NESC, IEEE, PIP etc.).
- Strong written and verbal skills with an ability to lead engineering tasks
- Experience on full EPC, Design/Build projects from start to finish.
- Capable of system financial estimation (Capex, Opex), PPA recommendation and calculating ROI
- Special design experience: floating PV, fuel cells, agrivoltaics, super capacitors, etc.
- Field construction and commissioning experience
Additional Information
Relocation assistance is not available for this position
Sponsorship for US employment authorization is not available now or in the future for this position
At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.
About AECOM
AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.
AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.
What makes AECOM a great place to work
You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects – both in your local community and on a global scale – that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity.
As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.
Annual salary information is not provided for this position. Explore salary ranges for similar roles in our Salary Directory ›
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