Hardware Product Manager; Energy Storage Systems

• 2–5 years of hands‑on engineering experience (electrical or mechanical engineering background working on similar products)
• Technical degree in engineering or a related field
• Strong engineering fundamentals: heat transfer, thermodynamics, basic circuit analysis, and core electrical concepts
• Direct experience developing a physical/hardware product through design and into production
• Comfort going deep on technical content: standards documents, engineering tradeoffs, system‑level analysis
• Strong written communication (you can write a tight technical spec, a clear engineering memo, or a structured competitive brief)
• Structured, analytical thinking and comfort with ambiguity — you make decisions with incomplete information and are honest about what you don't know
• Interest in broadening beyond a pure engineering role to help shape product direction and commercial strategy

• Energy storage, grid‑scale renewables, power electronics, automotive, EVs, or micromobility
• Adjacent hardware industries are also strong: consumer electronics, aerospace, defense, or anywhere you've had to contend with the laws of physics
• Exposure to BESS procurement, project development, or system integration
• Familiarity with grid interconnection, utility tariffs, or wholesale energy markets (ERCOT, CAISO, PJM)
• Experience working with inverter manufacturers or EMS vendors on technical integration
• Background in a startup or high‑growth hardware company

We're looking for a Technical Product Manager to join the product team and own the intersection of product requirements, hardware specifications, and go‑to‑market configuration strategy. This is a role for someone who is genuinely comfortable going deep on technical content — reading through standards documents, interrogating engineering tradeoffs, and translating them into clear, actionable product requirements — while also thinking at the level of market positioning and product offering strategy.

You'll work closely with our engineering, commercial, and operations teams to define what we build and how we package it. You won't be managing external customer relationships day-to-day, but your decisions will directly shape what customers experience: what configurations are available, what certifications we hold, our strategy around power conversion and software, and how our product competes on technical merit in the markets we serve.

• Own and maintain detailed product requirements documents (PRDs) covering hardware specifications, electrical and mechanical configurations, construction and installation requirements, and operational capabilities
• Define requirements across energy and power dimensions — including power constraints, round‑trip efficiency, auxiliary load budgets, and thermal operating envelopes
• Translate market, regulatory, and customer input into clear engineering requirements and acceptance criteria
• Track and maintain certification and compliance roadmap across relevant standards (e.g., UL 9540, IEC 62933, IEEE 693, NEC Article 706)
• Work with engineering to evaluate tradeoffs in hardware design decisions and ensure requirements reflect real‑world deployment constraints

• Define and maintain the inverter compatibility matrix — identifying target integration partners, characterizing interface requirements (communication protocols, control modes, grid‑forming capability), and driving qualification processes
• Help shape the EMS offering strategy — defining integration requirements, characterizing how EMS capabilities should be packaged and positioned, and ensuring our product works seamlessly within customers' control environments
• Contribute to competitive analysis of BESS products, focusing on technical differentiation: system architecture, performance specifications, integration flexibility, and certification status
• Support product roadmap planning with well‑reasoned recommendations grounded in technical and market analysis
• Work across teams to ensure product configuration options are well‑documented, manufacturable, and commercially coherent
• Contribute to the development of our client's long‑term service agreement (LTSA) and service contract strategy — including what commitments we make on performance, availability, and maintenance, and how service offerings are structured and priced