Network Security Engineer

SpaceXSI; Palo Alto, Austin, New York, Washington (CA, TX, NY, District of Columbia); On-site; USD 100,000 - 258,000; Full time

Benefits offered by this job

Equity

Medical, vision, dental coverage

401(k) retirement plan

Job summary

SpaceXSI is seeking a seasoned Senior Network Security Engineer to safeguard our cloud-native AI infrastructure. You will specialize in switching, routing, firewalls, VPNs, and incident response across multi-cloud environments.

The role demands hands-on expertise, strong automation mindset, and the ability to operate independently in a fast-paced setting. Ideal candidates have 4+ years of network security experience, familiarity with Cisco/Juniper hardware, and scripting skills to automate

Qualifications

• Bachelor's degree in Computer Science, Cybersecurity, Information Systems, or a related field.
• 4+ years of experience in network security engineering, with hands-on focus on switching and routing.
• Strong understanding of TCP/IP, VLANs, ACLs and secure routing/switching practices.

Responsibilities

• Serve as SME in network security including firewalls, VPNs, IDS/IPS, routing protocols like BGP/OSPF.
• Manage and update firewall configurations across the enterprise network.
• Deploy new firewalls, switches, routers, and security devices as needed.
• Develop innovative network security solutions for routing and switching environments.
• Enhance security processes through thorough documentation and change management.
• Act as primary resolver for complex network security issues and escalations.
• Ensure devices are up-to-date with patches and firmware.
• Monitor and respond to security events in cloud environments (AWS, GCP, Azure, Datacenter).

Skills

Network security

Switching & routing

Cloud security

Scripting (Python/Bash)

Documentation & change mgmt

Education

Bachelor's degree in Computer Science, Cybersecurity, Information Systems, or related field

Tools

Wireshark

tcpdump

Cisco

Juniper

Palo Alto Networks

Terraform

Job description

Palo Alto, CA; Austin, TX; New York, NY; Washington, DC

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.

ABOUT THE ROLE:

We are seeking a seasoned Senior 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 related field.
• 4+ years of experience in network security engineering, with hands-on focus on switching and routing.
• Certifications like CISA, CRISC, CGEIT, Security+, CASP+, or similar preferred.
• Strong understanding of network security principles, protocols (e.g., TCP/IP, VLANs, ACLs), and best practices for secure routing and switching.
• 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.

PREFERRED SKILLS AND EXPERIENCE:

• Relevant network-specific certifications (e.g., CCNP Security, CCIE Security, JNCIP-SEC, PCNSE).
• 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.

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 .

COMPENSATION AND BENEFITS:

$100,000 - $258,000 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.