Sr. Network Engineer

About us:

CEF Solutions Inc. is a Consulting Services and Business Process Outsourcing (BPO) company specializing in BPO Operations, Operations Management, Process Engineering and Innovation, Cost Optimization, and Staffing solutions. We take pride in our expertise in providing specialized staffing services, ensuring that clients have access to top talent that aligns with their operational goals. We service some of the largest multinational companies in the world and are expanding quickly by delivering an unmatched end-to-end client experience.

Company website: https://CEF.inc

Job Description:

We are looking for a Bilingual Network Engineer fluent in Korean and English with proven hands-on technical experience, particularly in environments utilizing Samsung Semiconductor systems and Cisco networking equipment. Adept at producing clear and thorough documentation, including 8D reports, incident reports, network strategies, and daily work logs. Demonstrates exceptional communication and relationship-building skills, especially when collaborating with Korean vendors, ensuring smooth coordination and efficient issue resolution in high-stakes technical environments.

Key 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.

Qualifications:

• 100% hands-on experience(To be tested on simulation exercises in CCNP Enterprise (ENSLD, ENARSI, ENWLSD) and/or CCNP Security (SISE))
• Design enterprise networks - switching and routing
• Solid background and understanding of Aruba or Cisco wireless
• Strong experience in collaborating with multi-disciplinary teams, including vendors, carriers, facilities, security, accounting, overseas team, and others.
• Expertise in understanding and implementing network access control, authentication, authorization, and identity directories, like Active Directory.
• 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.