---
title: 'Power Electronics Engineer at Helion'
canonical: 'https://feeny.ai/job/power-electronics-engineer-helion-everett-tzb55tp6vspj'
type: 'job'
last_seen: '2026-09-19'
---

# Power Electronics Engineer at Helion

- **Company:** [Helion](https://feeny.ai/companies/helion)
- **Location:** Everett, WA
- **Compensation:** $165k–$200k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-02-26
- **Last confirmed live:** 2026-09-19
- **Apply:** https://jobs.ashbyhq.com/helion/4f0b0e62-cdd6-4f66-803b-c2d8ee3703c0/application

**Skills:** Power Electronics, Python, MATLAB, LTSpice, SIMetrix/SIMPLIS, Simulink, Oscilloscope, DMM, PCB Design, Analog Front Ends, DC/DC Converters, AC/DC Converters, High Voltage Systems, Pulsed Power Systems, Solid State Switching Devices, Low Voltage Control, Schematic Capture

> Design, test, and scale high-voltage pulsed power systems and power electronics for fusion energy applications. The role involves developing DC/DC/AC converters, low-voltage control electronics, and precision sensing while ensuring measurement integrity in high-EMI environments.

## Job description

## About Helion

We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.

Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.

This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait. What You Will Be Doing: You will play a critical role in supporting the core electrical energy management systems that power our fusion generators. Our work spans pulsed power delivery to magnetics, power electronics and fusion energy recovery, low voltage controls and networking, and precision sensing in electrically noisy environments.

We look for strong electrical engineers who bring deep expertise in a few areas and give them real ownership immediately. You’ll focus on the areas where your strengths drive the most impact today, while gaining hands-on opportunities to grow into expanded scopes and solve system-level challenges.

Focus Areas:

- High Voltage/Pulsed Power Systems
- Design, test, troubleshoot, support, and scale high-voltage systems for driving pulsed magnetic coils (1<ms) at currents up to 5MA and voltage up to 40kV
- Evaluate and apply solid-state switching devices (IGBTs, MOSFETs, SCRs/thyristors) with attention to losses, protection, di/dt, dv/dt, and thermal performance
- Specify and integrate high energy components (capacitors, switches, pulse forming networks, buswork, protection, grounding)
- Power Electronics
- Design, test, scale, and integrate DC/DC, AC/DC, DC/AC converters used for energy delivery, energy recovery, and distribution ranging from hundreds of volts to thousands of volts
- Develop switching-stage designs including half/full bridges, phase-shifted/full-bridge, LLC/series-resonant, or buck/boost-derived converters (topology selection based on efficiency, controllability, and fault behavior)
- Low Voltage Control and Diagnostics
- Design low voltage control electronics and PCBAs that interface with high energy systems
- Own schematic capture and support layout, help scale PCBA deliveries to tens of thousands of boards
- Build analog front ends for current/voltage/field/temp and other diagnostics: amplification, filtering, isolation, ADC interfacing
- Ensure measurement integrity in high EMI environments (noise mitigation, grounding, shielding, calibration strategies)
- Partner with firmware/software teams on acquisition requirements and data quality

Required Skills:

- 2+ years experience in power electronics, solving complex electrical engineering problems from design to delivery
- Bachelor’s or Master’s level degree in Electrical Engineering, Physics, or a related technical field
- Demonstrated strength in at least one of the focus areas above
- Hands-on troubleshooting ability with standard lab equipment (oscilloscope, DMM, power supplies, loads, function/pulse generators, etc)
- Comfortable working in high-energy or electrically noisy environments with strong safety mindset and disciplined documentation
- Experience with Microsoft Suite, LTSpice, SIMetrix/SIMPLIS, Simulink, Python, and/or MATLAB

#LI-Onsite #LI-KL1

## Benefits

Our total compensation package includes benefits, including but not limited to:

- Medical, Dental, and Vision plans for employees and their families
- 31 Days of PTO (21 vacation days and 10 sick days)
- 10 Paid holidays, plus company-wide winter break
- Up to 5% employer 401(k) match
- Short term disability, long term disability, and life insurance
- Paid parental leave and support (up to 16 weeks)
- Annual wellness stipend

Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.

## About Helion

## Company Overview
- **One-liner**: Helion is building the world’s first fusion power plant to deliver clean, reliable, and affordable baseload electricity.
- **Entity Type**: Private (Series G – $465M raised in 2026 at a $15.5B post-money valuation, led by Thrive Capital)
- **Headquarters**: Everett, Washington, USA (with additional facilities in Chelan County, WA)
- **Founded**: 2013
- **Founders**: David Kirtley (CEO), Anthony Pancotti, and others

## Core Business
- **Primary industry**: Fusion energy generation (clean energy / climate tech)
- **Target customers**: B2B – utilities, large-scale energy buyers (e.g., Microsoft, Nucor), and data center operators
- **Mission**: Build the world’s first fusion power generators to provide clean, reliable, and affordable electricity for everyone.

## Products & Services
- **Polaris**: The latest prototype fusion machine – a 19‑meter device with 50 MJ capacitor banks that demonstrated deuterium‑tritium fusion in early 2026. It is a pulsed, field‑reversed configuration (FRC) reactor designed to directly convert fusion energy into electricity (no steam turbine).
- **Orion**: The planned first commercial fusion power plant, targeting 50 MW of electricity to Microsoft data centers by 2029. Modular, factory‑built generators that can be shipped to customers.
- **HERCULES Program**: A $4M initiative funding 20 research institutions to develop enabling technologies for scaled fusion deployment.

## Market Standing
- **Valuation**: $15.5 B (post‑money Series G, 2026)
- **Key Metric**: Total funding raised – $465 M (Series G) plus prior rounds (undisclosed total). Annual revenue not applicable (pre‑revenue).
- **Notable Investors/Partners**: Sam Altman (early backer, recently stepped off board), Thrive Capital (lead Series G), Microsoft (first PPA for fusion energy), Nucor (500 MW development deal)
- **Growth Signals**: ~600 employees (up from 51‑200 in earlier years); Polaris achieved first privately‑developed DT fusion demonstration; signed first ever fusion power purchase agreement (Microsoft); expanding manufacturing capacity in Washington.

## Competitive Advantages
- **Direct energy conversion**: Helion’s pulsed FRC design recovers electricity directly from the expanding plasma at >95% efficiency, skipping the inefficient steam cycle used by most fusion concepts.
- **Pulsed approach**: The reactor pulses rapidly (sub‑second), producing fusion energy in bursts that can be synchronized to the grid, and uses solid‑state switches capable of hundreds of millions of pulses.
- **Simpler magnets**: FRC plasma is self‑confining, requiring fewer and lower‑field magnets than tokamaks or stellarators, reducing cost and complexity.
- **Fuel flexibility**: Uses deuterium and tritium (with tritium breeding planned) and ultimately can burn advanced fuels (D‑D, D‑He3) as the technology matures.

## Strategic Focus
- **Commercial deployment**: Delivering 50 MW to Microsoft by 2029 (Orion plant); scaling up manufacturing to produce modular generators in factories.
- **Technology maturation**: HERCULES program to solve tritium breeding, materials, and other enabling challenges; advancing Polaris toward net electricity generation.
- **Partnership growth**: Expanding power purchase agreements and development deals with industrial and tech customers to meet surging demand (especially AI data centers).

## Why Work Here
- **Culture**: “Urgency, rigor, ownership, and hard truths” – a mission‑driven environment focused on solving the hardest problems in fusion engineering.
- **Work**: Hands‑on with real hardware (capacitors, magnets, plasma diagnostics) across mechanical, electrical, and physics disciplines.
- **Location**: Based in the Pacific Northwest (Everett & Chelan County) with immediate access to skiing, hiking, and water sports.
- **Benefits**: Premier medical/vision/dental (fully employer‑paid options), HSA contributions, wellness stipend, 5% 401(k) match, stock options, up to 12 weeks paid parental leave + 4 weeks for birthing parents, 21 vacation days, 10 sick days, 11 holidays + winter break.
- **Hybrid/Remote**: Not explicitly stated; roles appear to be on‑site in Washington (given the hardware‑focused nature).
- **Open Roles**: Engineers (mechanical, electrical, simulation, controls), magnet analysts, experimental scientists, technicians, machinists – over 100 positions listed.

## Sources
1. [helionenergy.com](https://www.helionenergy.com/) – Company overview, funding, technology, updates
2. [helionenergy.com/careers](https://www.helionenergy.com/careers) – Careers page, values, benefits
3. [helionenergy.com/careers/open-positions](https://www.helionenergy.com/careers/open-positions) – Current job listings
4. [scientificamerican.com](https://www.scientificamerican.com/article/helion-energy-is-building-a-fusion-power-plant-can-its-technology-deliver/) – In‑depth profile, 600 employees, Microsoft PPA, Polaris details
5. [indeed.com](https://www.indeed.com/cmp/Helion-Energy?campaignid=mobvjcmp&from=mobviewjob&fromjk=9e3fd74c2e72805f&tk=1jrv4ci0di9cp800) – Company size, revenue, 108 jobs

## Other roles at Helion

- [Senior Financial Analyst (Contract)](https://feeny.ai/job/senior-financial-analyst-contract-helion-seattle-dykvm3k402hv) — Seattle, WA
- [Electrical Systems Engineer](https://feeny.ai/job/electrical-systems-engineer-helion-everett-en8hx2zfvxrn) — Everett, WA
- [Integration and Test Engineer](https://feeny.ai/job/integration-and-test-engineer-helion-everett-z9az43jbzjv9) — Everett, WA
- [Senior Supplier Development Engineer, Mechanical](https://feeny.ai/job/senior-supplier-development-engineer-mechanical-helion-everett-ab4sy302v53q) — Everett, WA
- [Senior Materials Engineer, Material Health Monitoring](https://feeny.ai/job/senior-materials-engineer-material-health-monitoring-helion-everett-qnqhsn1y3qnq) — Everett, WA
- [Corporate Communications Specialist](https://feeny.ai/job/corporate-communications-specialist-helion-seattle-rh1tjaqp01c0) — Seattle, WA
- [Manufacturing Engineer](https://feeny.ai/job/manufacturing-engineer-helion-everett-2151ykfwt769) — Everett, WA
- [Senior Manufacturing Engineer](https://feeny.ai/job/senior-manufacturing-engineer-helion-everett-ajdszzvj4trq) — Everett, WA
- [Manager, Electrical Engineering](https://feeny.ai/job/manager-electrical-engineering-helion-everett-xc30n5x0s4vt) — Everett, WA
- [Principal Applied Plasma Data Scientist](https://feeny.ai/job/principal-applied-plasma-data-scientist-helion-everett-33tnj2pdtxam) — Everett, WA