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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 :

The Senior Site Reliability Engineer is a strategic technical leader responsible for designing and maintaining resilient systems and infrastructure. This role involves proactive reliability engineering, incident response leadership, and mentoring junior SREs to uphold high operational standards across the organization. This is an onsite role that reports directly to the Director of IS&T at our Everett, WA office.

• Collaborate with engineering teams to design scalable, fault-tolerant systems that meet performance and reliability goals
• Define and manage SLIs, SLOs, and SLAs; implement error budgets and reliability metrics
• Lead major incident responses, conduct root cause analyses, and drive postmortem processes
• Build and maintain automation for deployments, monitoring, and infrastructure management using tools like Terraform, Kubernetes, and CI / CD pipelines
• Develop and maintain observability platforms to ensure real-time system health tracking and proactive alerting
• Forecast system demands and optimize performance through load testing and tuning
• Collaborate with security teams to ensure infrastructure meets compliance and security standards
• Guide junior engineers, promote best practices, and contribute to a culture of reliability and continuous improvement

Required Skills :

#LI-Onsite

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

$150,000 - $190,000 USD

Benefits

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

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.