Sr. Network Engineer - Bilingual (English/Korean)

WOONGJIN, Inc. is seeking a Sr. Network Engineer to design, implement, and manage scalable and secure enterprise network infrastructures using Cisco Catalyst and Nexus platforms. The role involves optimizing routing protocols (BGP, OSPF, EIGRP, EVPN), deploying F5 load balancing solutions, and troubleshooting critical network issues. Responsibilities also include securing infrastructure with IPSec, 802.1x, TACACS+, and firewalls, supporting multicast in manufacturing environments, and leading network upgrades. Candidates must have 10+ years of experience, CCNP/CCIE certification, and be bilingual in English and Korean.

Must Have

• Design and architect enterprise networks using Cisco Catalyst and Nexus platforms.
• Manage advanced routing & switching protocols (BGP, OSPF, EIGRP, EVPN).
• Implement and maintain F5 Load Balancing Solutions with iRules scripting.
• Troubleshoot critical L2/L3 network issues, hardware failures, and VPN disruptions.
• Secure network infrastructure using IPSec, 802.1x, TACACS+, and firewalls.
• Support multicast technologies (PIM, MSDP, Anycast-RP) in manufacturing environments.
• Lead network upgrades and migration projects.
• Maintain detailed network diagrams, configuration records, and SOPs.
• Bachelor’s Degree in Computer Science, IT, or related field.
• 10+ years of experience in large-scale enterprise network operations.
• CCNP Enterprise or CCIE certification (current or expired within 3 years).
• Proficiency in troubleshooting complex network issues.
• Experience with Network Monitoring Tools.
• Bilingual in Korean and English.
• Reside within a 1-hour drive of Taylor, TX and commute 5 days/week.

Good to Have

• Experience supporting networks in large manufacturing environments (24/7 operations).
• Expertise in high availability network environments.
• Strong background in server network connectivity (Teaming, VPC, LACP).
• Experience with F5 Load Balancing setups, including iRules.
• Experience with Packet Capture Analysis, SSL certificates.
• F5 Load Balancers or Palo Alto Firewalls certification (5+ years hands-on).
• Familiarity with Unix/Linux and scripting (Python, Ansible).

Perks & Benefits

• Medical Insurance
• Vision Insurance
• Dental Insurance
• 401(k)
• Paid Sick hours

Company Description

For More Open Positions Visit us at:

http://recruiting.woongjininc.com/

Our Mission

WOONGJIN, Inc. is a rapidly growing team who provides a range of unique, exceptional, and enhanced services to our clients. We have a strong moral code that includes the service of goodness without expectations of reward. We are motivated by the sense of responsibility and servant leadership.

Benefits

• Medical Insurance
• Vision Insurance
• Dental Insurance
• 401(k)
• Paid Sick hours

Job Description

Responsibilities:

• Design and Architect Enterprise Networks: Lead the planning and implementation of scalable, secure network infrastructures using Cisco Catalyst and Nexus platforms, tailored to support high-demand environments.
• Manage Advanced Routing & Switching Protocols: Configure and optimize complex routing protocols such as BGP, OSPF, EIGRP, and EVPN, ensuring efficient traffic flow and high availability across global sites.
• Implement and Maintain F5 Load Balancing Solutions: Deploy and manage F5 appliances, including custom iRules scripting, to ensure application resilience, performance, and intelligent traffic distribution.
• Troubleshoot Critical Network Issues: Serve as the escalation point for diagnosing and resolving L2/L3 connectivity problems, hardware failures, and VPN-related disruptions across enterprise systems.
• Secure Network Infrastructure: Enforce robust security practices using technologies like IPSec, 802.1x, TACACS+, and firewalls, while maintaining compliance with internal and external standards.
• Support Multicast and Manufacturing-Specific Protocols: Configure and maintain multicast technologies including PIM, MSDP, and Anycast-RP to support real-time data delivery in manufacturing environments.
• Lead Network Upgrades and Migrations: Drive hardware/software refreshes, network expansions, and migration projects with minimal downtime and maximum operational continuity.
• Collaborate Across Teams and Vendors: Interface with cross-functional teams, ISPs, and hardware vendors to coordinate maintenance windows, resolve escalations, and manage RMA processes.
• Document and Standardize Network Operations: Maintain detailed network diagrams, configuration records, and SOPs to support audit readiness and streamline troubleshooting.
• Mentor and Develop Team Talent: Provide technical leadership and guidance to junior engineers, fostering a culture of continuous learning, accountability, and operational excellence.

Salary: $110k - $125k/yr. (D.O.E)

Qualifications

Requirements/Qualifications:

• Bachelor’s Degree in Computer Science, Information Technology, or a related field.
• 10+ years of hands-on experience in large-scale, enterprise-class network operations, including planning, design, implementation, and support, with a focus on Cisco devices (Catalyst, Nexus), Firewalls, and Load Balancers.
• CCNP Enterprise or CCIE certification (current or expired within the last 3 years).
• Extensive experience with routing protocols and network technologies.
• Proficiency in troubleshooting complex network issues, including hardware, L3/L3 problems, application connectivity, and P2P VPN connections.
• Experience with PIM, MSDP, Anycast-RP, and Multicast in a manufacturing environment.
• Experience with Network Monitoring Tools.
• Strong customer focus, a sense of ownership, urgency, responsibility for network documentation, and a passion for mentoring team members.
• Must reside within a 1-hour drive of Taylor, TX.
• Willing and able to commute to the office 5 days per week.
• Bilingual in Korean and English

Preferred Qualifications:

• Experience supporting networks in large manufacturing environments, particularly within a 24/7 operational context.
• Expertise in high availability network environments.
• Strong background in server network connectivity (Teaming, VPC, LACP).
• Experience with F5 Load Balancing setups, including iRules.
• Experience with Packet Capture Analysis, SSL certificates.
• F5 Load Balancers or Palo Alto Firewalls certification, with at least 5 years of hands-on experience.
• Familiarity with Unix/Linux and scripting in Python, Ansible, or other automation tools is a plus.

Additional Information

All your information will be kept confidential according to EEO guidelines.

* NO C2C *