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 and 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). Now, we're turning up operations for Polaris, working towards delivering the world's first fusion power plant. More than ever, it's a pivotal time to join us and have the opportunity to solve real challenges to create a better energy future. You will see first-hand how we value urgency, rigor, ownership, and hard truths, knowing it will take each to do what no one has before. Joining us, you will push the boundaries of what's possible and transform humanity for the better - because the world can't wait. What You Will Be Doing: As a Senior Environmental Health & Safety (EHS) Engineer at Helion, you will drive the development, implementation, and continuous improvement of safety programs across our fabrication and manufacturing facilities. You will partner closely with technical teams, site leadership, and executive stakeholders to build a safe, compliant, and high performing environment. You’ll shape and reinforce a safety-first culture by providing operational oversight, regulatory expertise, and ownership of key safety initiatives. You will report to the EHS Manager and this is an onsite role located at our Everett, WA office. You Will: Champion and Strengthen Helion’s Safety Culture – Promote ownership of safe work practices, facilitate Safety Committee meetings, and drive continuous improvement through active engagement and communication Ensure Compliance and Drive Continuous Improvement – Lead audits and inspections to proactively identify risks and close compliance gaps. Develop and track corrective actions to support adherence to OSHA, hazardous materials regulations, contractor safety standards, and incident investigation protocols Lead Safety Program Development and Execution – Create job hazard analyses, high-risk work procedures, and materials handling improvements. Ensure documentation is up to date and training requirements are met across teams Deliver Operational Safety Oversight and Support – Conduct routine walkthroughs, providing real-time safety support Required Skills: 8+ years of experience in EHS roles within manufacturing, R&D, energy, or high-complexity industrial environments Demonstrated success building and scaling EHS programs from the ground up Deep knowledge of OSHA regulations, safety policies, and risk management practices Experience managing audits, incident investigations, and implementing effective mitigation strategies Demonstrated ability to influence teams, communicate effectively across functions, and promote a safety-first mindset Physically able to conduct inspections and carry equipment used for inspections Ability to lift up to 25 pounds at a time and climb stairs and ladders as needed Must be able to use all required PPE CSP certification preferred #LI-Onsite #LI-MM1 Total Compensation and Benefits Helion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation. This is an exempt salaried role. Annual Base Pay $130,000 - $170,000 USD Benefits Our total compensation package includes benefits, including but not limited to: • Medical, Dental, and Vision plans for employees and their families

The experience expected from applicants, as well as additional skills and qualifications needed for this job are listed below. • 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.

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