Overview

Job Title: Sr. Engineer - BESS TechnologyLocation: Juno Beach, FLDuration: 12 months renewable contractOverviewJob Summary: The Utility Scale Energy Storage team is looking for an innovative and dynamic engineer toserve as the Battery Technology & Sizing Lead in a key Sr. Engineering role. The successful candidate willsupport the team as a Subject Matter Expert (SME) in evaluating existing and emerging energy storagetechnologies, including battery technologies, PCS/power electronics, and alternative energy storagesolutions. The role will focus on assessing technology performance, technical maturity, commercialreadiness, cost, and applicability to utility-scale projects and new use cases, while also providing strongtechnical expertise in BESS sizing and system optimization.The successful candidate will lead BESS sizing methodologies, manage system losses and projectspecific assumptions, and ensure optimized solutions aligned with power purchase agreements andother project requirements. The candidate will also be expected to continuously improve BESS sizingtools and engineering processes. Experience applying AI, automation, data analytics, or software tools toengineering applications is preferred, along with an open and innovative mindset toward adoptingemerging technologies to improve engineering quality, efficiency, and decision-making.This position generally prefers in-person office presence at Juno Beach headquarters but offers hybridoptions for the right candidate.Key Responsibilities1. BESS Sizing & Optimization SME Support the lead Subject Matter Expert (SME) for utility-scale BESS sizing, providing technicalleadership on sizing methodology, assumptions, optimization, and project-specific sizingdecisions. Develop and optimize end-to-end BESS sizing from the point of interconnection throughGSU/substation, PCS/inverters, DC system, and battery, accounting for system losses,degradation, augmentation/overbuild strategies, temperature, operating constraints, andcontractual requirements. Own and continuously improve BESS sizing methodologies, calculators, assumptions, andtechnical guidance to ensure consistent and accurate sizing across projects. Organize and maintain a clear tracking record of sizing assumptions, inputs, decisions, andresults from early-stage development through project execution. Review project-specific sizing results, identify optimization opportunities and technical risks, andprovide 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 PCSequipment ratings are incorporated in the sizing database2. Technology Evaluation Support the lead SME in the team to assess and evaluate new and existing battery technologiesand 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 forperformance prediction. Evaluate non-lithium-ion and emerging energy storage technologies for new and evolving usecases, 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 storagetechnologies to support technology selection, business-case development, and pilot orcommercial deployment decisions. Utilize the annual technology RFP and RFI database from major and emerging energy storagetechnology vendors to track and visualize technology advancements, product roadmaps,performance, and commercial readiness, and provide a concise summary of key findings andrecommendations to management.3. Digital Tools, Automation & AI Develop and improve engineering tools that automate BESS sizing, technical evaluations, batteryperfo