Network Security Engineer

Xai; Austin (TX); On-site; USD 100,000 - 258,000; Full time

Job summary

SpaceXAI is seeking a seasoned Senior Network Security Engineer to join our dynamic security team. The ideal candidate brings deep expertise in network security, with focus on switching and routing within cloud-native and AI-focused infrastructure.

You will act as a hands-on engineer, deploying firewalls, switches, routers, and security devices, while continuously improving threat detection, incident response, and secure network design across AWS, GCP, Azure, and data centers.

Qualifications

• Bachelor's degree in CS, Cybersecurity, IS, or related field.
• 4+ years of hands-on network security engineering experience.
• Certifications like CISA, CRISC, CGEIT, Security+, CASP+ preferred.
• Strong TCP/IP, VLANs, ACLs, and secure routing/switching knowledge.
• Experience with AWS, GCP, or Azure network security services (VPCs, Security Groups).
• Familiarity with Wireshark and tcpdump; vendors like Cisco, Juniper, Palo Alto Networks.

Responsibilities

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

Skills

Network security

Switching & routing

Cloud networking

Scripting (Python/Bash)

Threat detection

Education

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

Tools

Wireshark

tcpdump

Cisco

Juniper

Palo Alto

Job description

SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

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.

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.

COMPENSATION AND BENEFITS:

$100,000 - $258,000 USD

Base salary is just one part of our total rewards package at SpaceXAI, 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.

SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.