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A Network Engineer designs, implements, monitors, and manages an organization’s LAN/WAN infrastructure to ensure maximum uptime, security, and performance. They configure routers, switches, and firewalls, troubleshoot network bottlenecks, and support cloud/physical connectivity. Key skills include knowledge of TCP/IP, BGP, OSPF, and security protocols, with certifications like CCNA/CCNP preferred. [1, 2, 3, 4]
Key Responsibilities
Infrastructure Management: Install, configure, and maintain network hardware (routers, switches, firewalls, load balancers).
Performance Monitoring: Ensure 24/7 network availability and optimize performance using tools like SolarWinds or Wireshark.
Security Implementation: Set up security measures (VPNs, firewalls, IPS, ACLs) to protect network integrity.
Troubleshooting: Diagnose and resolve network failures, packet loss, and connectivity issues.
Design & Planning: Plan capacity, design network topologies, and support upgrades or cloud migrations (AWS/Azure).
Documentation: Maintain comprehensive, up-to-date documentation of network topology and configurations. [1, 2, 3, 4, 5, 6, 7, 8]

Required Skills and Qualifications
Technical Knowledge: Strong understanding of LAN/WAN, TCP/IP, VLANs, VoIP, and DNS.
Experience: Usually requires 3+ years of hands-on experience in network administration or engineering.
Certifications: Cisco CCNA/CCNP (preferred), Network+, or similar vendor-specific certifications.
Platforms: Experience with vendors like Cisco, Palo Alto, Juniper, or Meraki.
Soft Skills: Analytical problem-solving, communication, and ability to manage multiple projects. [1, 2, 3, 4]

Common Job Titles
Network Support Engineer, Network Administrator, Network Architect, Systems Engineer, or IT/Systems Support Engineer.