Senior Multiphysics Simulation Engineer

Reposted 10 Days Ago
Be an Early Applicant
Everett, WA, USA
In-Office
182K-214K Annually
Mid level
Energy
The Role
The Senior Multiphysics Simulation Engineer will enhance analysis workflows, run multiphysics models, collaborate on hardware designs, and build software tools for fusion energy projects.
Summary Generated by Built In

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 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 will own hardware designs for Helion's fusion generator prototypes. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report directly to our Senior Manager of Engineering at our Everett, WA office.

You Will:

  • Enhancing Helion’s analysis workflow for critical structures (electromagnets)

  • Running transient multiphysics finite-element models to generate margins for critical designs

  • Collaborating with a multidisciplinary engineering team to improve critical hardware designs

  • Learning from in-house experts to expand your skillset into electrical and thermal analysis

  • Building software tools to automate the analysis workflow and allow Helion engineers and scientists to run their own analysis

Required Skills:

  • You have a bachelor’s degree in electrical engineering, applied mathematics, physics or related field with a minimum of 3 years of hands-on engineering experience.

  • Strong background in analytical, computational and numerical simulation methods

  • Expert level understanding of electromagnetic and thermal finite element modeling

  • Experience in taking on complex analysis problems from formulation through hardware testing and model correlation.

  • Proficiency with multiphysics finite-element analysis tools such as COSMOL, ANSYS or equivalent

  • Experience with programming environments (Matlab, Python, etc.) for scripting, tooling or data analysis

  • Familiarity with semiconductor physics, solid mechanics and structural dynamics (modal, transient)

  • Familiarity with Slurm or other high-performance computer cluster (HPC) batch schedulers

  • Desire to positively impact complex structural designs, rather than just execute on analysis

#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.

Skills Required

  • Bachelor's degree in electrical engineering, applied mathematics, physics or related field
  • Minimum of 3 years of hands-on engineering experience
  • Strong background in analytical, computational and numerical simulation methods
  • Expert level understanding of electromagnetic and thermal finite element modeling
  • Experience in taking on complex analysis problems from formulation through hardware testing and model correlation
  • Proficiency with multiphysics finite-element analysis tools such as COSMOL, ANSYS or equivalent
  • Experience with programming environments for scripting, tooling or data analysis
  • Familiarity with Slurm or other high-performance computer cluster (HPC) batch schedulers

Helion Energy Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Helion Energy and has not been reviewed or approved by Helion Energy.

  • Fair & Transparent Compensation Compensation is considered competitive for many roles, with employer materials emphasizing competitively benchmarked pay. Total rewards commonly include salary plus equity and benefits that align with market expectations.
  • Healthcare Strength Health coverage includes medical, dental, and vision with options for fully employer‑paid premiums, HSA support, and core protections like life and disability. This breadth signals robust medical benefits for a growth‑stage company.
  • Equity Value & Accessibility Equity is broadly offered through stock options for all employees, positioning ownership as a meaningful part of total rewards. Employer communications consistently highlight equity participation as a differentiator.

Helion Energy Insights

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The Company
Everett, WA
100 Employees
Year Founded: 2013

What We Do

Helion is a fusion power company based in Everett, WA, with the mission to enable a future with unlimited clean energy. Our vision is a world with clean, reliable, and affordable electricity for everyone. Currently, we are scaling up our latest fusion prototype to make our vision a reality. We’re hiring brilliant scientists, engineers, and builders passionate about developing world-changing technologies. If that sounds like you, check out our open positions.

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