Network Security Engineer

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:

As a Network Security Engineer, you'll play a critical role in protecting the infrastructure that powers our mission to unlock unlimited clean energy. You'll be on the front lines defending against evolving cyber threats, implementing cutting-edge security measures, and ensuring that our networks remain strong as we scale. This is an onsite role at our Everett, WA office, reporting directly to our Senior Network Security Engineer.

You Will:

• Design and deploy highly-available network architectures tailored to the unique needs of fusion energy systems
• Configure and manage networking hardware, including routers, switches, firewalls, and wireless access to ensure high availability and security
• Implement and maintain network monitoring tools to proactively identify and resolve performance bottlenecks
• Collaborate with IT and engineering teams to integrate network solutions with other infrastructure components
• Develop and enforce network policies and procedures to maintain compliance with industry standards and best practices
• Provide technical support and training to staff on network-related issues and technologies
• Stay up-to-date with networking technologies and recommend innovative solutions to improve reliability

Required Skills:

• Bachelor's degree in computer science, Information Technology, or a related field
• Minimum 3 years of experience in network engineering, with a strong understanding of LAN/WAN technologies
• Proficiency configuring and managing network devices, including routers, switches, and firewalls (Cisco, Juniper, Fortinet, or similar)
• Strong understanding of network security protocols, VPNs, and firewall configurations
• Expertise in deploying segmented networks to separate business and OT workloads
• Experience with network troubleshooting, performance tuning, and optimization techniques
• Strong problem-solving skills and ability to troubleshoot complex network issues
• Experience with developing and maintaining network architecture diagrams based on internal customer requirements
• Excellent communication and collaboration skills, with a team-oriented mindset
• Experience installing and servicing structured cabling
• Comfortable working on lifts or at height to service and install network hardware
• Ability to work in a dynamic, fast-paced environment and adapt to evolving technologies

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.