Sr. Network Security Engineer

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next. SR. NETWORK SECURITY ENGINEER We are seeking a Network Security Engineer to join our dynamic security team. The ideal candidate will possess deep expertise in network security technologies, focusing on switching and routing systems within cloud-native and AI-focused infrastructure. You will thrive in a fast-paced, challenging environment, demonstrating adaptability, excellent multitasking skills, and the drive to tackle complex security issues independently while ensuring robust protection for our innovative technologies. RESPONSIBILITIES: Serve as a subject matter expert in network security, particularly firewalls, VPNs, IDS/IPS, routing protocols (e.g., BGP, OSPF), and switching technologies Manage and update firewall configurations across our enterprise network to align with operational and security needs Deploy new firewalls, switches, routers, and network security devices in response to evolving threats and demands Develop and propose innovative network security solutions to address operational challenges in routing and switching environments Enhance security processes through thorough documentation and change management Act as the primary resolver for complex network security issues, including escalation support Ensure network security systems, switches, and routers are up-to-date with patches, firmware, and maintenance Monitor and respond to security events in cloud environments (e.g., AWS, GCP, Azure, Datacenter), with emphasis on network traffic analysis BASIC QUALIFICATIONS: Bachelor's degree in computer science, cybersecurity, information systems, or a science discipline 5+ years of experience in network security engineering, with hands-on focus on switching and routing PREFERRED SKILLS AND EXPERIENCE: Proficiency in at least one major cloud platform (AWS, GCP, or Azure) and its network security services (e.g., VPCs, Security Groups) Experience with network analysis tools such as Wireshark, tcpdump; and vendors including Cisco, Juniper, Palo Alto Networks Familiarity with scripting languages (e.g., Python, Bash) for automation of network security tasks Relevant network-specific certifications (e.g., CCNP Security, CCIE Security, JNCIP-SEC, PCNSE) Certifications such as CISA, CRISC, CGEIT, Security+, CASP+ preferred Experience in multi-cloud environments and Infrastructure as Code tools like Terraform for network provisioning Knowledge of DevSecOps practices tailored to network security integration Experience building custom tools or integrations for enhancing network security operations Interest in leveraging AI for network threat detection and automation Contributions to open-source projects in network security or related tools Strong understanding of network security principles, protocols (e.g., TCP/IP, VLANs, ACLs), and best practices for secure routing and switching COMPENSATION AND BENEFITS: $180,000 - $330,000 USD Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks. ITAR REQUIREMENTS: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here . SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice .