Senior Network Engineer

Austin, Texas, United States (On-site)

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Location: Austin, TX (Onsite – must be within 1 hour of Taylor, TX)

Red Oak Technologies is seeking an experienced Enterprise Network Engineer fluent in Korean and English to join a high-availability manufacturing network environment. This position involves collaborating with stakeholders, Korean vendors, and internal teams to design, implement, and maintain resilient, secure enterprise networks.

• Design, deploy, and maintain enterprise networks using Cisco Catalyst and Nexus platforms
• Configure and optimize routing protocols such as BGP, OSPF, EIGRP, and EVPN
• Implement and manage F5 Load Balancers
  , including iRules configuration
• Serve as the escalation point for complex L2/L3 network issues, VPNs, and hardware failures
• Ensure network security through IPSec, 802.1x, TACACS+, and firewalls
• Support multicast technologies relevant to manufacturing (
  PIM, MSDP, Anycast-RP
  )
• Lead network upgrades, migrations, and expansion projects with minimal disruption
• Collaborate with cross-functional teams, ISPs, and vendors on RMAs and escalations
• Maintain thorough documentation:
  8D reports, SOPs, diagrams, and incident logs
• Mentor junior engineers and encourage best practices and operational excellence

• Bachelor’s degree in Computer Science, IT, or related field
• 8+ years of enterprise network engineering experience
• Extensive experience with Cisco enterprise networking (Catalyst, Nexus)
• Hands‑on experience with firewalls and load balancers
• Prior experience supporting Samsung Semiconductor environments
• Advanced understanding of routing, switching, multicast, and VPN technologies
• CCNP Enterprise or CCIE (current or expired within last 3 years)
• Proven troubleshooting skills for complex hardware, L2/L3, and application connectivity
• Familiarity with network monitoring tools
• Strong ownership, urgency, and documentation discipline
• Excellent communication skills and ability to work with Korean‑speaking vendors
• Must commute onsite 5 days/week

• Experience in large‑scale manufacturing or 24/7 production environments
• High‑availability network design expertise
• Server networking knowledge (
  VPC, LACP, NIC teaming
  )
• Advanced F5 Load Balancer experience (iRules strongly preferred)
• Packet capture analysis and SSL certificate management
• F5 or Palo Alto certifications with 5+ years hands‑on experience
• Familiarity with Linux/Unix systems and automation tools (Python, Ansible)