Senior Engineer - Battery Energy Storage Systems (BESS)

What You Can Expect

As a Battery Energy Storage Systems (BESS) Senior Engineer within Renewables Flex Power Business Unit (RFGBU) in North America, you will play a key role in developing advanced battery energy storage solutions, with a focus on lithium-ion technologies. You’ll collaborate with Subject Matter Experts (SMEs) to define system requirements, design battery systems, specify components, and support both business development and operations teams.

Your responsibilities will span the full project lifecycle—from initial design and sizing through development, installation, commissioning, and operation. You’ll generate detailed bills of materials for cost evaluation and serve as the primary engineering interface for EPC partners, ensuring technical excellence throughout project execution.

What You Will Do:

- Lead the design and development of lithium-ion Battery Energy Storage Systems (BESS), including system sizing, layout, and component specification, in collaboration with Subject Matter Experts (SMEs)

- Oversee all technical aspects of project execution—from design through commissioning and operation—serving as the primary engineering interface for EPC partners and Owner’s Engineers

- Support business development by identifying technical requirements, engaging with utilities and Authorities Having Jurisdiction (AHJs), and contributing to proposals and cost evaluations

- Review and ensure compliance with system designs and drawings with ENGIE standards, NEC, IEEE, and other applicable codes and regulations

- Independently lead and collaborate with project teams to deliver high-quality electrical engineering, including oversight of consultants and contractors, ensuring compliance with company policies, safety standards, interconnection agreements, and overall project objectives

- Generate and update site layouts, grading and stormwater plans, single ‑ line and utility diagrams, and incorporate external survey, geotechnical, and consultant drawings—maintaining company CAD standards

- Support Operations & Maintenance (O&M) teams through training, troubleshooting, and staying current on emerging technologies, industry standards, and regulatory changes

What You’ll Bring

- Minimum of a Bachelor's Degree in Electrical or Mechanical Engineering or related field

- At least five (5) years of experience in renewable systems engineering, with a focus on battery energy storage

- Extensive technical expertise in battery energy storage systems (BESS), including inverters, transformers, substations, protection and controls, battery management and energy management systems

- Proven experience managing projects across the full lifecycle—from design through commissioning—while collaborating with EPCs, SMEs, and O&M teams

- Analytical and problem-solving skills applied to complex BESS challenges, including system integration and performance optimization

- Proficiency in creating, reading, and interpreting construction plans and technical specifications

- Advanced AutoCAD Civil 3D experience to create and revise full civil drawing sets for utility ‑ scale BESS sites

- Excellent communication skills and the ability to engage effectively with internal stakeholders, utilities, and regulatory authorities

Additional Details

- This role is eligible for our hybrid work policy

- Must be available to travel domestically up to 30% of the time and with the need for some overnight trips

- Must be willing and able to comply with all ENGIE ethics and safety policies

Compensation

Salary Range:

$99,000 – $151,800 USD annually

This represents the average expected pay range for a qualified candidate.

ENGIE complies with all federal, state, and local minimum wage laws. Actual salary offered may vary depending on geography, experience, education, internal pay alignment, or other bona fide factors.

In addition to base pay, this position is eligible for a competitive bonus / incentive plan.

Your Talent Acquisition Partner can share more specific information regarding the benefits or the salary for the position based on the work location.

At ENGIE, we take your well-being seriously. Our comprehensive benefits package includes options for medical, dental, vision, life insurance, employer-paid short-term and long-term disability insurance, ESPP, generous paid time off including wellness days, holidays and leave programs. We also help you plan for retirement by offering a 401(k) Retirement Savings Plan with a company match. But that's not all – we're dedicated to the health and happiness of your entire family, offering supplemental benefits for full time employees that enhance emotional and physical well-being through all stages of life from family forming to caregiver benefits. Explore our benefits package to see how we can support you. Learn more .

Why ENGIE?

ENGIE North America isn’t just participating in the Zero-Carbon Transition, we’re leading it! Join us as we develop energy that is renewable, efficient, and accessible to everyone.

ENGIE is proud to be an equal opportunity workplace, and we are firmly committed to creating an inclusive workplace for all employees. We are committed to providing employees with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or other legally protected status.

If you need assistance with this application or a reasonable accommodation due to a disability, you may contact us at ENGIENA-ENGIEHR@ENGIE.com . This email address is reserved for individuals with disabilities in need of assistance and is not a means of inquiry regarding positions or application status.

We are unable to sponsor or take over sponsorship of an employment visa for this role at any time.

The safety of our employees is our number one priority. All employees at ENGIE have both a duty and the authority to STOP WORK if unsafe acts are observed.

Business Unit: GBU Renewables

Division: REN NORTHAM - US

Legal Entity: ENGIE North America Inc.

Professional Experience: Skilled ( >3 experience <15 years)

Education Level: Bachelor's Degree

Company Name: ENGIE North America