Helion Energy

Senior Engineering Technician, Operations Support

Join Helion Energy in Everett as a Senior Engineering Technician supporting fusion power prototypes. Work hands-on with cutting-edge hardware in a fast-paced R&D setting. Enjoy comprehensive health benefits, generous PTO, and a 401(k) match while advancing clean energy technology.
Helion Energy
Helion Energy
Everett, United States On-site Full time UTC-07:00

Helion Energy

Company Overview

Helion Energy

Everett, WA, United States

2013

Approximately 350 employees (source: linkedin.com). No public revenue figures disclosed as the company is pre-commercialization.

What They Do

Helion Energy is a pioneering private fusion energy company that specializes in magneto-inertial fusion (MIF) technology. This innovative approach combines magnetic confinement for stability with inertial confinement for heating, enabling controlled fusion reactions that utilize deuterium from water and self-generated helium-3 in a closed-fuel cycle. This technology allows for direct electricity generation without the need for steam turbines, significantly enhancing efficiency (source: tsginvest.com). The company’s flagship product, the Fusion Engine, includes notable prototypes such as Trenta, which became the first private company to achieve a fuel temperature of 100 million degrees Celsius, and the seventh-generation Polaris, which aims to demonstrate net electricity generation from fusion (source: nucnet.org). Helion targets high-demand sectors, particularly tech data centers, and has secured over 50 industrial clients, focusing on long-term power purchase agreements (PPAs) rather than hardware sales (source: vizologi.com). The company differentiates itself through its compact design, aneutronic fusion for low radioactivity, and a faster commercialization timeline compared to competitors like Commonwealth Fusion Systems (source: equityzen.com).

Projects & Track Record

While Helion Energy has not yet completed any fully commercial projects, it has made significant strides with its prototypes, Trenta and Polaris, the latter of which is operational and aims to demonstrate net electricity generation from fusion (source: tsginvest.com). The company is currently focused on the Orion fusion power plant, a 50 MW facility under construction in Chelan County, Washington, which is expected to connect to the grid by 2028. This plant will supply power to Microsoft data centers through the state's primary power networks after a one-year ramp-up period (source: nucnet.org). Helion's client base includes Microsoft, with whom they announced the world's first fusion PPA in May 2023, and they have expressed interest from other major players like OpenAI's Sam Altman for large power purchases (source: equityzen.com). The company’s geographic presence is primarily in Washington state, with future expansion linked to the Orion project and potential data center grids (source: tsginvest.com).

Recent Developments

In the past two years, Helion Energy has made notable advancements, including the announcement of a 50 MW power purchase agreement with Microsoft in May 2023 (source: equityzen.com). The company began site work on the Orion plant in Chelan County in 2025, marking a significant step towards its goal of commercial fusion energy (source: nucnet.org). Additionally, Helion raised $425 million in a Series F funding round in January 2025, achieving a valuation of $5.4 billion and bringing its total funding to over $1 billion (source: tsginvest.com). Recent milestones also include a behind-the-scenes tour of the Polaris prototype and progress towards manufacturing fusion power at scale, with the fusion market projected to reach $572.75 billion by 2032 (source: equityzen.com).

Working There

Helion Energy offers a variety of roles across research and development, engineering, plasma physics, manufacturing, and leadership positions, including scientists and executives. Departments focus on critical areas such as accelerator development, E-BEAM optics, and laboratory operations (source: vizologi.com). The company is headquartered in Everett, WA, where open positions are listed, although no current jobs were shown on Y Combinator as of the latest data. The culture at Helion emphasizes rapid iteration and a transition from academic research to commercialization, fostering a team of experts in a high-stakes environment as they work towards the 2028 deployment of their fusion technology (source: tsginvest.com). While specific employee benefits are not detailed in available sources, the private nature of the company and its substantial funding suggest competitive perks typical of tech-sector startups in Washington's innovation ecosystem (source: aceventurefunds.com).


Last updated on Feb 23, 2026 | Report an issue

Job Description

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 over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant.

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'll work side-by-side with engineers and scientists to turn ideas into prototypes, prototypes into experiments, and experiments into real systems operating on Polaris and the next generation of Helion fusion machines.

This isn't a routine technician role. It's a hands-on engineering role for people who like solving hard problems, building first-of-a-kind hardware, and working in a fast-paced R&D environment where each day brings new challenges and opportunities to build, test, and advance the next generation of fusion energy systems.

One day, you might be installing diagnostics or troubleshooting high-voltage pulsed power systems. Next, you could be fabricating a rapid prototype, integrating new instrumentation, or helping reconfigure a test bay to support the next phase of development.

You Will

  • Support the operation, maintenance, and ongoing development of Polaris and future generations of Helion fusion systems
  • Collaborate with a multidisciplinary team to fabricate, assemble, test, troubleshoot, deploy, operate, maintain, and repair complex mechanical, electrical, and electronic systems
  • Install, align, and maintain high voltage pulsed power systems, including ultra-high vacuum (UHV) and fuel systems
  • Fabricate one-of-a-kind prototypes, assemblies, fixtures, and instrumentation enclosures, supporting rapid design iterations from engineering concepts
  • Perform PCB assembly, soldering, rework, and custom cable fabrication
  • Install and integrate diagnostics, sensors, cameras, and scientific instrumentation used to monitor and support system development
  • Support upgrades, modifications, and reconfiguration of experimental test bays to enable evolving research and development work
  • Operate safely at heights using scissor lifts and fall protection systems within Helion facilities
  • Communicate project progress, technical issues, and system status with engineers and technical owners
  • Create and maintain technical documentation, build records, and inventory of parts and consumables while maintaining a strong commitment to safety and operational excellence
  • Support either our 6:00 am to 2:30 pm OR 11:00 am to 7:30 pm work schedule, Monday through Friday at our Everett, WA office

Required Skills

  • 5+ years of hands-on experience building, integrating, testing, or operating complex electromechanical or experimental hardware systems
  • Demonstrated ability to develop first-of-a-kind hardware and solve complex technical challenges where solutions are not always immediately obvious
  • Ability to operate effectively in fast-paced R&D environments where priorities shift and new hardware is continuously being developed and integrated
  • Experience troubleshooting complex electrical, mechanical, and instrumentation systems in experimental or industrial environments
  • Strong hands-on fabrication and prototyping skills, including machining, fixture design, mechanical assembly, and rapid hardware iteration
  • Ability to work safely at heights using ladders, scissor lifts, and fall protection equipment
  • Proficiency with electrical systems and electronics assembly, including wiring harnesses, cable fabrication, soldering, PCB assembly, and signal routing
  • Familiarity working with instrumentation and diagnostic systems, including sensors, cameras, and precision measurement equipment
  • Experience interpreting technical drawings, electrical schematics, and engineering documentation
  • Strong communication and organizational skills with the ability to maintain build documentation, test records, and technical notes while operating to high standards of safety and quality

Preferred Skills

  • Background working with high voltage electrical systems (200V+)
  • Working knowledge of vacuum systems, including high or ultra-high vacuum environments (<10⁻³ Torr)
  • Hands-on work with scientific instrumentation and diagnostic systems
  • Experience supporting experimental test infrastructure or research hardware platforms
  • Exposure to experimental physics, plasma systems, aerospace systems, or advanced energy technologies

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.

Apply now

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About the role

May 14, 2026

Full time

Company

May 14, 2026

On-site

Hydrogen

Helion Energy

helionenergy.com

  •  Everett, United States

5+ years

UTC-07:00