Senior Materials Engineer, Diagnostics

Job details

Work model

On-site

Salary

$164K - $236K

Location

Everett, WA

Hiring context

How this role compares at Helion

Helion has 90 live roles in MeritLog’s catalog across 5 job families, and 62 of them are in engineering. 87 of those listings publish a pay range, a disclosure rate of 97%.

This role's posted range of $164K - $236K sits above 51% of the 80 other Helion roles quoted over the same currency and period.

Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.

What the role asks for

Parsed by MeritLog from the employer’s own posting. The full description follows below.

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: We are looking for a Senior Materials Engineer, Diagnostics to lead the development of materials health monitoring for Helion’s fusion generators. You will design, qualify, and deploy in-situ and ex-situ diagnostics to detect and quantify materials degradation under combined stimuli, including thermomechanical stress, radiation, high electric fields, and coolant environments. You will work cross-functionally with Materials, Research, and Engineering teams to translate failure modes into measurable signals and integrate diagnostics into hardware and predictive models. This onsite role is based in Everett, WA. You Will: - Develop and deploy in-situ and ex-situ diagnostics for degradation and failure in fusion-relevant materials and components (e.g., first wall, magnets, insulators, capacitors, HV interfaces, seals) - Translate failure and degradation modes into measurable signals using sensors, inspection methods, or indirect indicators - Design and execute coupled-stimuli experiments and post-irradiation examinations (PIE) to validate diagnostic methods - Build test matrices and analysis plans linking microstructural evolution to sensor outputs and component performance - Own the materials diagnostics roadmap by converting risk assessments into diagnostic requirements (what to measure, where, how often, and accuracy) - Collaborate with design engineers to embed diagnostics into hardware and ensure compatibility with system constraints - Partner with modeling teams to integrate diagnostic outputs into predictive models and maintenance strategies - Productize diagnostic methods and sensors for reliable deployment in fusion environments - Document test plans, procedures, and design guidance; communicate results, risks, and recommendations across teams Required Skills: - BS with 10+ years, or MS/PhD with 5+ years, in Materials Science, Materials Engineering, Applied Physics, Nuclear Engineering, or related field - 5+ years (with PhD or MS) or 10+ years (with BS) of experience in at least one of: - Materials diagnostics / NDE / SHM (strain, acoustic, optical, EM, fiberoptic, etc.). - Familiarity with data analysis / feature extraction for degradation detection (Python preferred). - Experience designing and executing coupled-stimuli experiments (e.g., thermomechanical, electrothermal, irradiation with stress) - Experience embedding or integrating sensors into structural materials (ceramics, composites, polymers, or metals) Preferred Skills: - Experience in fusion, fission, accelerator, or high-radiation environments - Experience with radiation effects and post-irradiation examination (PIE) - Familiarity with high-voltage systems or safety-critical experimental environments #LI-TM1 #LI-Onsite 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.