Sr Engineer BESS Technology SME

Westinghouse Electric Company; Juno Beach (FL); Hybrid; USD 76,000 - 83,000; Part time

Job summary

Westinghouse Electric Company is seeking a Sr Engineer BESS Technology SME in Florida for a 1-year contract (W-2). The role leads sizing, technology evaluation, and develops tools for utility-scale energy storage projects, focusing on performance, maturity, cost, and applicability.

You will own sizing methodologies, manage assumptions, and collaborate with Engineering, Development, and Supply Chain to optimize interconnection through GSU/substation, PCS, DC system, and battery.

Qualifications

• Bachelor's or Master's degree in Electrical Engineering, Mechanical Engineering, Chemical Engineering, Materials Engineering, or a related field.
• Demonstrated expertise in utility-scale BESS sizing and optimization, including AC/DC sizing, degradation, system losses, augmentation/overbuild, thermal impacts, and project-specific operating requirements.
• Experience applying AI, automation, programming, or advanced data-analysis tools to engineering problems is strongly preferred.

Responsibilities

• Support the lead SME for utility-scale BESS sizing, providing technical leadership on sizing methodology, assumptions, optimization, and project-specific sizing decisions.
• Develop and optimize end-to-end BESS sizing from interconnection through GSU/substation, PCS/inverters, DC system, and battery, accounting for losses, degradation, and constraints.
• Own and continuously improve BESS sizing methodologies, calculators, assumptions, and technical guidance for consistent sizing across projects.
• Review sizing results, identify optimization opportunities and risks, and provide sizing recommendations to Engineering, Development, Supply Chain, and project teams.
• Develop and improve engineering tools that automate BESS sizing, technical evaluations, battery performance forecast, and repetitive workflows.

Skills

BESS sizing

AI analytics

Python

Power BI

Excel/VBA

Automation

Data analytics

Project leadership

Thermal management

AC/DC sizing

Education

Bachelors in EE

Masters in EE

Tools

Python

Power BI

Excel/VBA

Low-code

Claude

Devon Desktop

Job description

*Must be able to work in the United States without sponsorship*

We are searching for a Sr Engineer BESS Technology SME on behalf of our client. This is a 1-year contract assignment. (W-2) The Utility Scale Energy Storage team is looking for an engineer to serve as the Battery Technology & Sizing Lead in a key Sr. Engineering role. You will support the team as a Subject Matter Expert (SME) in evaluating existing and emerging energy storage technologies, including battery technologies, PCS/power electronics, and alternative energy storage solutions.

The role will focus on assessing technology performance, technical maturity, commercial readiness, cost, and applicability to utility-scale projects and new use cases, while also providing strong technical expertise in BESS sizing and system optimization.

You will lead BESS sizing methodologies, manage system losses and project specific assumptions, and ensure optimized solutions aligned with power purchase agreements and other project requirements. You will also be expected to continuously improve BESS sizing tools and engineering processes. Experience applying AI, automation, data analytics, or software tools to engineering applications is preferred, along with an open and innovative mindset toward adopting emerging technologies to improve engineering quality, efficiency, and decision-making. This position generally prefers in-person office presence at Juno Beach headquarters but offers hybrid options for the right candidate.

1-year contract assignment. (W-2)

Key Responsibilities

• Support the lead Subject Matter Expert (SME) for utility-scale BESS sizing, providing technical leadership on sizing methodology, assumptions, optimization, and project-specific sizing decisions.
• Develop and optimize end-to-end BESS sizing from the point of interconnection through GSU/substation, PCS/inverters, DC system, and battery, accounting for system losses, degradation, augmentation/overbuild strategies, temperature, operating constraints, and contractual requirements.
• Own and continuously improve BESS sizing methodologies, calculators, assumptions, and technical guidance to ensure consistent and accurate sizing across projects.
• Organize and maintain a clear tracking record of sizing assumptions, inputs, decisions, and results from early-stage development through project execution.
• Review project-specific sizing results, identify optimization opportunities and technical risks, and provide sizing recommendations to Engineering, Development, Supply Chain, and project teams.
• Fully own and maintain the sizing tools to ensure the latest and greatest BESS and PCS equipment ratings are incorporated in the sizing database.
• Support the lead SME in the team to assess and evaluate new and existing battery technologies and their applicability to utility-scale systems. Conduct thorough technical evaluations and performance assessments such as degradation, efficiency, available energy, and overall reliability, SOC/SOH, encompassing battery cells, modules and system. And utilization of Claude, VS Code, Devon Desktop, etc. to build tools for performance prediction.
• Evaluate non-lithium-ion and emerging energy storage technologies for new and evolving use cases, regional market demand, assessing technical maturity, performance, safety, scalability, supply chain readiness, and commercial viability.
• Develop preliminary system sizing and CAPEX estimates for alternative energy storage technologies to support technology selection, business-case development, and pilot or commercial deployment decisions.
• Utilize the annual technology RFP and RFI database from major and emerging energy storage technology vendors to track and visualize technology advancements, product roadmaps, performance, and commercial readiness, and provide a concise summary of key findings and recommendations to management.
• Develop and improve engineering tools that automate BESS sizing, technical evaluations, battery performance forecast, and repetitive engineering workflows.
• Utilization of AI, automation, data analytics, or software-based tools to improve engineering productivity and decision-making is preferred.
• Experience developing engineering tools using Excel/VBA, Python, Power BI, low-code platforms, AI tools, or similar technologies is preferred.
• Demonstrated curiosity and willingness to adopt emerging technologies, including AI, and identify practical applications that improve engineering quality, speed, consistency, and knowledge sharing in a dynamic environment.
• Partner with software development and other technical teams to translate engineering methodologies into scalable digital tools and automated workflows.

Preferred Qualifications

• Bachelor's or Master's degree in Electrical Engineering, Mechanical Engineering, Chemical Engineering, Materials Engineering, or a related field.
• Demonstrated expertise in utility-scale BESS sizing and optimization, including AC/DC sizing, degradation, system losses, augmentation/overbuild, thermal impacts, and project-specific operating requirements.
• Experience with alternative chemistry technologies, such as flow battery, multi-day storage system, fuel-cell-like technologies, sodium ion battery, supercapacitor. Background in IGBT and SIC inverters is a plus.
• Established experience in the energy storage industry with a strong professional network and demonstrated relationships with major and emerging battery and/or PCS vendors.
• Experience applying AI, automation, programming, or advanced data-analysis tools to engineering problems is strongly preferred.
• Ability to combine strong engineering fundamentals with an innovative mindset and willingness to challenge and improve existing engineering processes.
• Excellent document and folder organizational skills for easy access and retrieval and data base tracking.
• Excellent project management, communication, and leadership abilities.
• Willingness to travel to battery manufacturing sites for technology assessments.

We are committed to transparency and equity in all of our people practices. The base salary range for this position, which is dependent upon experience, qualifications and skills, is estimated to be $55.00/hr. to $60.00/hr.

Equal Opportunity Employer including Veterans and Individuals with Disabilities