Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy.
We are rapidly designing and building a pulsed magnetic fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems.
Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders.
The Senior Network Security Engineer will be responsible for the day-to-day operation, monitoring, and security of the company’s enterprise network infrastructure across multiple offices and cloud environments. This role focuses on maintaining secure connectivity for users, applications, and SaaS platforms, ensuring strong access controls, and enforcing network security policies.
The Engineer will configure and manage firewalls, switches, and wireless networks; monitor network and security events; and collaborate with IT, security, and cloud teams to protect critical business systems. The ideal candidate combines hands-on technical ability with a security-first mindset and experience supporting hybrid environments that blend on-prem networks, SaaS applications, and cloud resources in AWS.
Configure, maintain, and troubleshoot enterprise firewalls, switches, and wireless access points across all office locations.
Manage VLANs, routing, and network segmentation for security, performance, and user separation.
Implement and manage secure remote access and Zero Trust solutions for employees and contractors.
Monitor and respond to network alerts, investigate anomalies, and implement remediations.
Perform firmware upgrades, patches, and policy updates for all network and security devices.
Review and optimize firewall rules, security policies, and access controls.
Collaborate with IT and cloud teams to ensure reliable connectivity to SaaS platforms and AWS environments.
Maintain visibility into network and cloud traffic using monitoring and logging tools.
Manage ISP and vendor relationships to ensure stable and redundant internet connectivity.
Document network configurations, diagrams, and incident response procedures.
3+ years of experience in network administration or network security engineering.
Hands-on experience configuring and managing enterprise firewalls, switches, and wireless access points (e.g., Palo Alto, Fortinet, Cisco/Meraki).
Strong understanding of routing, switching, VLANs, and segmentation.
Experience securing wireless networks and implementing best practices for authentication and access.
Solid understanding of network security principles, intrusion detection/prevention, and threat mitigation.
Familiarity with tools for network visibility, monitoring, and logging.
Ability to diagnose and resolve complex connectivity and performance issues.
Strong documentation and communication skills.
Familiarity with automation or scripting (Python, PowerShell, or Bash) for configuration and monitoring.
Experience with IDS/IPS or network security monitoring tools (e.g., Zeek, Snort, Suricata).
Vendor certifications (e.g., PCNSE, CCNP Security, CWNP).
Familiarity with OT or lab networks is a plus but not required.
Industry-competitive salary
Equity plan
6% employer 401k matching
Generous paid time off (including sick leave, vacation, paid family leave)
Medical, Dental, and Vision insurance
Actual base salary offered will be determined by: experience, skills, and work location. This range is for base salary, our total compensation includes equity and benefits. We welcome you to apply even if your expectations are outside our listed range.
Pacific Fusion is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.
Pacific Fusion is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures and throughout employment. If you need assistance or any accommodation, please let us know.
Pacific Fusion does not accept unsolicited resumes from recruiters or employment agencies without a fully executed recruitment agreement in place. In the absence of such agreement, Pacific Fusion reserves the right to pursue and hire any candidates without an obligation to pay fees. Agencies are requested not to contact Pacific Fusion hiring managers or employees regarding recruiting services.
Compensation Range: $170K - $200K