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:

Our Network Security Engineer will be responsible for designing, implementing, and maintaining secure network systems to protect Helion’s data and infrastructure from cyber threats. This role acts as the first line of defense against intrusions, ensuring that firewalls, routers, and monitoring tools are configured and managed effectively. This is an onsite role at our Everett, WA office, reporting directly to our Senior Network Security Engineer.

Configure firewalls, intrusion detection/prevention systems (IDS/IPS), VPNs, and proxies
Use tools to detect suspicious activity, mitigate risks, and respond to incidents
Investigate network vulnerabilities, hardware malfunctions, and security breaches
Create and enforce network security policies, maintain system documentation, and ensure compliance with standards
Work with IT, cloud, and operations teams to integrate secure solutions across platforms
Contribute to business continuity strategies and recovery plans in case of cyberattacks or outages

Required Skills:

5+ years of network security engineering experience
Technical expertise: Strong knowledge of TCP/IP, routing protocols (BGP, OSPF, ISIS), and network architecture
Security tools proficiency: Experience with firewalls, IDS/IPS, SIEM platforms, and forensic tools
Certifications: Commonly required certifications include CISSP, CCNP Security, CEH, or CompTIA Security+
Problem-solving ability: Analytical mindset to identify vulnerabilities and propose effective solutions
Cloud security knowledge: Familiarity with securing cloud environments (AWS, Azure, GCP)

#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

$124,000—$151,000 USD

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.

Network Security Engineer

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