
Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone.
51 - 200 employees
Founded 2006
October 23
🇺🇸 United States – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
👮♂️ Cybersecurity / Security Engineer

Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone.
51 - 200 employees
Founded 2006
• Design, configure, and maintain network security solutions, including firewalls, VPNs, IDS/IPS, and secure routing. • Monitor and analyze network traffic to detect and respond to security threats. • Implement network segmentation and zero-trust principles to minimize attack surfaces. • Conduct regular vulnerability assessments and penetration tests on network devices. • Collaborate with system administrators and cybersecurity teams to align network configurations with security best practices. • Manage and document firewall policies, access control lists (ACLs), and change requests. • Respond to security incidents involving network infrastructure and participate in root-cause analysis. • Evaluate new tools and technologies to strengthen network security posture.
• Bachelor’s degree in Computer Science, Information Security, or related field. • 5+ years of experience in network security engineering or related roles. • Strong hands-on experience with firewalls (Fortinet, Palo Alto, Cisco ASA) and VPN technologies. • Proficient in network protocols, routing, switching, and network monitoring tools (e.g., Wireshark, SolarWinds). • Understanding of NIST, ISO 27001, or similar security frameworks. • Relevant certifications such as CCNP Security, Fortinet NSE, Palo Alto PCNSE, CompTIA Security+, or CEH are highly desirable.
• Ongoing Business Support • Access to CX guidance, regulatory updates, and industry insights through our professional network
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