--- title: 'Lead Power Electronics Engineer - MW-Class Multi-Port Power Conversion at Exowatt' canonical: 'https://feeny.ai/job/lead-power-electronics-engineer-mw-class-multi-port-power-conversion-exowatt-k4r7111dc3yc' type: 'job' last_seen: '2026-09-07' --- # Lead Power Electronics Engineer - MW-Class Multi-Port Power Conversion at Exowatt - **Company:** Exowatt - **Location:** Miami, FL - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-07-24 - **Last confirmed live:** 2026-09-07 - **Apply:** https://jobs.lever.co/exowatt/94611625-b554-4900-b14f-08f930e26ba2 ## Job description Exowatt is revolutionizing the energy landscape for the AI era with our groundbreaking P3 system that captures solar energy, stores it as heat, and generates electricity on demand. Founded in 2023 and backed by leading investors including Andreessen Horowitz, Sam Altman, and Felicis, we're committed to providing clean, modular, and scalable power that meets the rapidly growing demands of AI infrastructure. Our mission is to make sustainable renewable energy always available and almost free, enabling technological advancement while protecting our planet. We are looking for a Lead Power Electronics Engineer to lead development of Exowatt’s next-generation MW-class multi-port power conversion solution. This person will own system architecture, product and engineering requirements, partner evaluation, development oversight, validation, and certification readiness for a high-power solution using advanced technologies such as SiC, GaN, and/or Solid State Transformer architectures. This is a senior technical role for someone who has designed, developed, or brought up power conversion systems at the hundreds-of-kW to MW scale. The ideal candidate has practical experience with high-power converter design, grid-interactive systems, controls integration, protection, thermal and mechanical design, EMI/EMC, safety, and certification. The person in this role will work closely with product, systems, controls, firmware, mechanical, thermal, manufacturing, supply chain, and external development partners to bring a robust MW-level multi-port solution to certification readiness by Q4 2027. This position is based in Miami, FL. If selected, relocation to Miami, FL is required. Exowatt provides relocation assistance. Key Responsibilities: - Product Definition & Architecture - Lead architecture definition for a MW-class multi-port power conversion system supporting interfaces such as solar, storage, thermal generation, grid, load, and/or DC bus integration - Develop the Product Requirements Document and translate product needs into detailed Engineering Requirements across electrical, thermal, mechanical, controls, firmware, safety, reliability, manufacturability, serviceability, and certification - Evaluate SiC-based, GaN-based, and Solid State Transformer architecture options, including tradeoffs across performance, cost, reliability, scalability, manufacturability, certification complexity, and time-to-market - Define key system requirements, including voltage levels, power ratings, efficiency, isolation, grounding, protection, communications, operating modes, grid behavior, and thermal performance - Build technical roadmaps, risk registers, design review gates, and validation strategies to support the target development timeline MW-Class Power Electronics Development - Lead technical development of high-power converter architectures, including DC/DC, DC/AC, AC/DC, AC/AC, bidirectional, isolated, modular, and multi-port conversion systems - Guide topology selection and trade studies for architectures such as dual-active-bridge converters, resonant converters, modular multilevel converters, NPC/ANPC topologies, interleaved converters, and medium-frequency transformer-based systems - Drive power stage design decisions, including semiconductor selection, gate drivers, magnetics, DC link design, busbars, sensing, filtering, protection, cooling, packaging, creepage/clearance, and insulation coordination - Review schematics, power layouts, high-power interconnects, thermal designs, safety systems, and controls interfaces - Work with controls and firmware teams to align modulation, protection logic, fault response, communications, diagnostics, and system state machines with system requirements Partner Evaluation & Joint Development - Identify and evaluate external development partners, including power electronics design firms, OEMs, ODMs, contract manufacturers, labs, universities, and certification partners - Develop technical evaluation criteria for partner selection, including MW-level design experience, SiC/GaN capability, Solid State Transformer experience, controls expertise, manufacturing maturity, certification history, and execution speed - Lead technical due diligence through architecture reviews, capability assessments, reference checks, test data reviews, and risk assessments - Define statements of work, deliverables, milestones, design review gates, validation requirements, and acceptance criteria for joint development programs - Serve as the primary technical owner for external partner execution, ensuring performance, schedule, quality, documentation, and certification requirements are met Test, Validation & Certification Readiness - Develop system-level test and validation strategies for MW-class power conversion hardware, including prototype bring-up, integration testing, load testing, grid simulation, fault testing, thermal testing, and reliability testing - Define validation plans for electrical performance, efficiency, dynamic response, protection behavior, controls performance, communications, safety, EMI/EMC, thermal limits, and environmental operating conditions - Analyze test data to validate performance against requirements and identify design gaps, control issues, thermal issues, component limitations, or system-level risks - Lead root-cause analysis and corrective actions for prototype failures, test anomalies, performance gaps, and certification issues - Work with certification bodies and test labs to define the pathway toward applicable UL, IEEE, IEC, NEC, NRTL, grid interconnection, EMI/EMC, and safety requirements Required Qualifications: - B.S., M.S., or Ph.D. in Electrical Engineering, Power Electronics, Power Systems, Controls, or a related field - 10+ years of experience in power electronics, high-power converter development, grid-interactive systems, or advanced energy systems - Demonstrated experience with power conversion systems in the hundreds-of-kW to MW range; direct MW-class converter experience strongly preferred - Strong hands-on experience with SiC-based power conversion; GaN experience preferred - Experience leading high-power electrical products from concept through prototype, validation, and certification or production readiness - Deep understanding of converter topologies, semiconductor switching behavior, gate drivers, magnetics, DC link design, busbars, protection, filtering, EMI/EMC, and thermal constraints - Experience developing product requirements, engineering requirements, system specifications, test plans, validation plans, and certification-readiness documentation - Strong understanding of high-voltage and high-power safety, including isolation, creepage/clearance, grounding, fault containment, arc flash considerations, and lab safety practices - Ability to evaluate system-level tradeoffs across performance, cost, reliability, manufacturability, scalability, certification complexity, and time-to-market - Excellent technical communication skills with the ability to influence architecture decisions and align technical and non-technical stakeholders ## Preferred Experience - Experience with Solid State Transformers, multi-port converters, modular converters, medium-voltage power conversion, or high-power isolated DC/DC architectures - Development of MW-class inverters, converters, rectifiers, UPS systems, EV fast charging systems, BESS power conversion systems, solar inverters, wind converters, industrial drives, or medium-voltage power electronics - Experience with grid-tied systems, renewable energy systems, energy storage, data center power, DC microgrids, or hybrid energy systems - Familiarity with grid-forming, grid-following, droop control, black start, synchronization, fault ride-through, harmonic control, and power quality requirements - Experience with SiC MOSFET modules, GaN devices, advanced gate drivers, laminated busbars, high-frequency magnetics, and high-power capacitor banks - Familiarity with simulation tools such as MATLAB/Simulink, PLECS, PSCAD, PSIM, LTspice, SPICE-based tools, or equivalent platforms - Experience with NRTL/certification labs and standards such as UL 1741, UL 1973, UL 9540, UL 2202, IEEE 1547, IEC 62477, IEC 61000, IEC 61800, or related high-power product standards - Experience working in a startup or fast-moving hardware product development environment Ideal Candidate Profile The right candidate has real MW-class power electronics experience, not just simulation or low-power design experience. They can compare SiC, GaN, Solid State Transformer, modular, isolated, and transformer-based architectures and make practical tradeoffs across performance, cost, reliability, certification, manufacturability, and schedule. They are comfortable moving from product requirements to engineering requirements, from architecture to prototype, and from test data to root-cause analysis. They also know how to evaluate external partners and hold them accountable while helping Exowatt build strong internal technical capability. ## About Exowatt ## Company Overview - **One-liner**: Exowatt designs and manufactures modular, full-stack solar energy systems that capture solar energy, store it as heat, and dispatch electricity on demand to power energy-intensive infrastructure like AI data centers. - **Entity Type**: Private (Series A) - **Headquarters**: Miami, FL, USA - **Founded**: 2023 (implied by company narrative) - **Founders**: Not publicly disclosed on the website or job postings ## Core Business - **Primary industry/industries**: Renewable Energy, Clean Technology, Energy Storage, AI Infrastructure. - **Target customers**: B2B — specifically AI data centers, high-performance computing (HPC) data centers, and utility-scale energy projects. They also target utility companies and industrial sites with high energy demands. - **Mission or purpose statement**: "Our mission is to deliver ultra-low-cost, reliable power that fuels global AI infrastructure while protecting our planet" — as stated by the founders on their vision page. ## Products & Services - **Exowatt P3**: The flagship product, a "dispatchable solar" system. It is a modular, full-stack energy system that captures solar energy using custom optical lenses (Fresnel lenses), stores it as heat in a proprietary high-temperature sensible heat battery (long-duration energy storage), and converts it into electricity on demand via a proprietary heat engine. It is designed to provide up to 24 hours of dispatchable energy, essentially serving as a baseload power source. The system can be deployed behind the meter (BTM) to reduce interconnection wait times, and is built in the USA without rare earth minerals. - **Energy Optimization Software**: Integrated software platform for real-time monitoring, control, and automation of Exowatt P3 systems. Enables intelligent dispatch, integration with other energy assets (solar PV, wind, natural gas, grid), and participation in arbitrage and virtual power plants (VPPs). ## Market Standing - **Valuation**: Not publicly disclosed. - **Key Metric**: Total Funding — $70 million Series A round announced on April 22, 2025 [exowatt.com](https://www.exowatt.com/faq). - **Notable Investors/Partners**: Not named on the website (the funding announcement and Crunchbase profile are referenced but not detailed on the main site). The company claims a "Made in the USA" supply chain and mentions partnerships with utility companies and data center operators. - **Growth Signals**: - Raised a significant $70M Series A in early 2025, signaling strong investor confidence. - Actively hiring across multiple key engineering and leadership roles (Electrical, Mechanical, Controls, Power Electronics) in two locations (Miami, FL and Austin, TX). - Targeting the rapidly expanding AI and HPC data center market, which has an enormous and growing demand for clean, dispatchable power. - Their product’s "Bring Your Own Power" (BYOP) capability directly addresses the critical bottleneck of long interconnection queues for new data centers, a major market pain point. ## Competitive Advantages - **Dispatchable Solar + Storage**: Unlike standard solar PV, Exowatt's system can provide 24/7 baseload power by storing solar energy as heat and generating electricity on demand, solving the intermittency problem of renewables. - **Expedited Time-to-Power**: The ability to deploy fully behind the meter allows customers to bypass lengthy utility interconnection queues, accelerating project timelines for energy-intensive facilities like data centers. - **No Rare Earth Minerals**: The system is built with abundant, domestically sourced materials, avoiding supply chain vulnerabilities and environmental concerns associated with rare earth mining. - **Modular & Scalable**: Factory-built modules allow for linear scaling, enabling customers to start small and expand capacity as their energy needs grow. - **30-Year Lifespan**: Designed for low maintenance and a 30-year operational life, providing long-term reliability. ## Strategic Focus - **Targeting the AI Energy Boom**: Exowatt is squarely focused on providing clean, reliable, and rapidly deployable power to solve the massive energy demands of AI and HPC data centers. - **U.S. Manufacturing & Energy Independence**: The company is prioritizing domestic manufacturing to ensure quality, supply chain security, and alignment with national energy independence goals. - **Scaling Rapidly to Meet Demand**: With a $70M Series A, the focus is likely on scaling manufacturing, building out their deployment pipeline with initial customers, and expanding the engineering team to accelerate product development and deployment. ## Why Work Here - **High-Impact Mission**: The opportunity to work on a critical technology that directly enables the AI revolution by solving its most fundamental constraint: sustainable, scalable power. - **High-Performance Team**: The company describes itself as a "high-performance team of engineers, scientists, and builders pushing the boundaries of what’s possible," indicating a fast-paced, ambitious environment. - **On-Site Engineering Roles**: The posted positions (Electrical Engineer, Lead Mechanical Engineer, Lead Controls & Firmware Engineer) are full-time and on-site in either **Miami, FL** or **Austin, TX**. No remote or hybrid options are visible in current job listings. - **Competitive Benefits**: Benefits include comprehensive healthcare, flexible PTO, and team-wide equity [exowatt.com/careers](https://www.exowatt.com/careers). - **Small, Fast-Moving Company**: With a Series A funding, this is an early-stage company, offering roles with high ownership, influence, and the chance to build foundational systems. ## Sources 1. [exowatt.com](https://www.exowatt.com/?gad_campaignid=21982037242) 2. [exowatt.com](https://www.exowatt.com/faq) 3. [exowatt.com](https://www.exowatt.com/vision) 4. [exowatt.com](https://www.exowatt.com/careers) 5. 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