---
title: 'Senior Power Electronics Engineer at Critical Loop'
canonical: 'https://feeny.ai/job/senior-power-electronics-engineer-critical-loop-long-beach-rcjrg0yw0eb2'
type: 'job'
last_seen: '2026-10-30'
---

# Senior Power Electronics Engineer at Critical Loop

- **Company:** Critical Loop
- **Location:** Long Beach
- **Compensation:** $150k–$200k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-28
- **Last confirmed live:** 2026-10-30
- **Apply:** https://jobs.ashbyhq.com/criticalloop/26f92dd0-4e91-4194-a81b-73e061f3e7bb

## Job description

## About Critical Loop

Critical Loop is shaping the next generation of energy systems by building the integrated edge grid of the future. Specializing in advanced energy management and battery control systems, Critical Loop empowers businesses and communities to seamlessly unite distributed energy resources for faster, more reliable, and affordable grid access. With deep expertise in grid modernization and a passion for creating resilient, responsive energy solutions, Critical Loop drives innovation at the intersection of technology and energy.

About the Role: Critical Loop is looking for a Senior Power Electronics Engineer to lead the development of sophisticated power, digital, and mixed-signal electronic systems. This role will have significant ownership of hardware development, spanning initial system architecture and component selection through schematic design, PCB development, hardware bring-up, validation, and final production release. The successful candidate will be comfortable working independently while partnering closely with engineering leadership to make system-level technical decisions, solve complex hardware challenges, and bring designs from concept to production. Strong hands-on expertise in power electronics, FPGA-based control, and hardware development is essential.

What You’ll Do: Electrical Design & System Architecture

- Take ownership of complete electrical hardware development, including mixed-signal, digital, and power electronics, from initial architecture through final design release.
- Establish and drive system-level electrical architectures, including power-conversion approaches, control interfaces, protection strategies, and signal-processing chains.
- Design and develop high-voltage DC-DC and DC-AC conversion systems, motor-drive electronics, and power-management circuitry.
- Create and support FPGA-based control and signal-processing systems using VHDL or Verilog, including simulation, timing closure, and integration with embedded control platforms.
- Develop production-ready schematics, bills of materials, and PCB layouts while establishing design practices that support manufacturability, reliability, and consistent production.
- Contribute to electrical design reviews, failure-mode analysis, and design-for-manufacturing activities to identify and address potential issues before production.

Hardware Bring-Up, Testing & Validation

- Take the lead on hardware bring-up, troubleshooting, and debugging of new boards and electronic systems across power, digital, and mixed-signal applications.
- Utilize oscilloscopes, logic analyzers, power analyzers, and other laboratory equipment to diagnose hardware performance and complex electrical issues.
- Develop and execute electrical validation and characterization strategies covering areas such as thermal performance, efficiency, EMI, and functional operation.
- Analyze test results and convert findings into actionable hardware and design improvements.
- Support environmental qualification and regulatory compliance activities, including EMC, electrical safety, and other applicable certification requirements.

What We’re Looking For: Required

- Bachelor’s degree in Electrical Engineering or a closely related discipline; a Master’s degree is preferred.
- 3–7 years of relevant electrical engineering experience focused on hardware or product development.
- Extensive hands-on experience designing power electronics, particularly in areas such as DC-DC converters, motor drives, high-voltage systems, or energy-storage interfaces.
- Strong background in mixed-signal circuit development, including analog signal conditioning, ADCs, sensors, and filtering.
- Demonstrated FPGA development experience with VHDL or Verilog, including simulation, synthesis, and hardware-level validation.
- Proficiency with Altium or comparable PCB design software, along with a strong understanding of GD&T and formal engineering documentation.
- Significant laboratory experience with advanced electrical test equipment and the ability to independently diagnose and resolve sophisticated hardware problems.
- Experience collaborating with contract manufacturers, PCB fabrication partners, and component suppliers, including design feedback, manufacturing considerations, and component qualification.
- Excellent communication skills with the ability to lead technical discussions, clearly document engineering decisions, and collaborate effectively across engineering and operations teams.

Work Authorization: Critical Loop does not provide visa sponsorship for this role. Please do not apply for this role if at any time (now or in the future) you will need immigration support (i.e H-1B, OPT training plans etc.).

At Critical Loop, we're committed to rewarding and supporting our team. Our benefits package includes equity ownership through stock options, giving you a stake in our success, along with comprehensive health coverage (medical, dental, and vision) through an HRA with a generous allowance. We also provide a retirement savings plan and unlimited paid time off so you can recharge and maintain work-life balance. Critical Loop is an equal opportunity employer. We're committed to building a diverse team and creating an inclusive workplace where everyone can thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected characteristic under applicable law.

## About Critical Loop

## Core Business
- **Primary industry**: Energy infrastructure, distributed energy resources (DER), battery energy storage systems (BESS), microgrids.
- **Target customers**: B2B / enterprise – industrial manufacturing, data centers, utilities, critical infrastructure, and EV fleet operators.
- **Mission**: “We’re building a world where energy is abundant and accessible on demand.” The company also states it aims to “accelerate access to reliable power, even where it’s otherwise impossible.” [criticalloop.com](https://www.criticalloop.com/about)

## Products & Services
- **Modular Battery Storage Systems**: Relocatable, megawatt-scale batteries that can be deployed in weeks to provide fast, flexible capacity.
- **Microgrid Cabinet**: A smart, scalable cabinet that integrates different power sources (grid, battery, renewables) into a single controlled system.
- **Control Software**: Proprietary platform for orchestrating power sources, real-time monitoring, diagnostics, and optimization.
- **Full‑Spectrum Energy Solutions**: End‑to‑end project development including financing, design, permitting, deployment, and ongoing operations & maintenance.

## Market Standing
- **Valuation / Market Cap**: Not disclosed.
- **Key Metric**: 50 MWh deployed, scaling to 100+ MWh in 2026, with a stated path to 5–10 GWh within five years. The company operates 55+ active control nodes under actual utility contracts. [criticalloop.com](https://www.criticalloop.com/)
- **Notable Investors / Partners**: Not publicly disclosed. The team includes former leaders from SpaceX, Palantir, Tesla, and Rivian, and the company works with “blue‑chip customers” and utilities.
- **Growth Signals**: Rapid scaling of deployed capacity; 67 employees (as of mid‑2026); active hiring across hardware, software, and business development roles; operating in California with utility contracts.

## Competitive Advantages
- **Speed to power**: “Get megawatts in weeks, not years” – a key differentiator in a market where grid interconnection often takes 5+ years.
- **Configurable platform**: Combines grid power with a proprietary battery fleet, allowing the same hardware/software stack to serve multiple industries (manufacturing, data centers, utilities, etc.).
- **Aerospace‑level engineering**: Founding team from SpaceX, Palantir, and Tesla brings rigor in safety, reliability, and system integration.
- **Proven in the field**: Systems already deployed in extreme conditions with real utility contracts, not just prototypes.

## Strategic Focus
- **Current priorities**: Scale deployed capacity to 100+ MWh in 2026, expand industrial customer base, and deepen partnerships with utilities to close grid gaps. The company is solving the “time‑to‑power” problem that limits business growth in the U.S.

## Why Work Here
- **Culture**: “No endless meetings. No busywork. Just real problems, real ownership, and shipping things that matter.” Early‑stage, fast‑paced environment with a bias toward action. [criticalloop.com/careers](https://www.criticalloop.com/careers)
- **Location & work model**: Engineering roles (Senior Mechanical Engineer, Senior Electrical Engineer, Hardware Technical Program Manager) are listed as “Long Beach (On‑site).” Other roles may vary.
- **Notable perks**:
  - Equity ownership (stock options) for all team members.
  - 401(k) retirement savings plan.
  - Individual Coverage Health Reimbursement Arrangement (ICHRA) – a monthly allowance to choose health, dental, and vision plans.
  - Generous paid time off (unlimited for some roles, 15 days for others) and unlimited sick leave.

## Sources
1. [criticalloop.com](https://www.criticalloop.com/) – Main company site with product, deployment, and mission details.
2. [criticalloop.com/careers](https://www.criticalloop.com/careers) – Careers page with culture, perks, and open roles.
3. [criticalloop.com/about](https://www.criticalloop.com/about) – About page with mission, speed‑to‑power narrative, and customer segments.
4. [criticalloop.com/team](https://criticalloop.com/team) – Team page listing co‑founders and leadership backgrounds.
5. [jobs.ashbyhq.com/criticalloop](https://jobs.ashbyhq.com/criticalloop) – Active job listings with salary ranges and location details.

## Other roles at Critical Loop

- [Senior Electrical Engineer (Systems)](https://feeny.ai/job/senior-electrical-engineer-systems-critical-loop-torrance-nsmszrcdm4se) — Torrance
- [Site Operations Technician](https://feeny.ai/job/site-operations-technician-critical-loop-long-beach-7kavv8vckkx5) — Long Beach
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- [Business Operations Assistant](https://feeny.ai/job/business-operations-assistant-critical-loop-torrance-66s5062v2h1x) — Torrance
- [Test Engineer](https://feeny.ai/job/test-engineer-critical-loop-long-beach-eky9kfs81x5a) — Long Beach
- [Project Manager](https://feeny.ai/job/project-manager-critical-loop-torrance-yvswfnw6gym4) — Torrance
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- [Quality Inspector](https://feeny.ai/job/quality-inspector-critical-loop-torrance-96w5svaw6208) — Torrance
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