Senior Network Engineer – Job Description (15+ Years Experience)

Job Title: Senior Network Engineer
Experience: 15+ Years
Location: [Location] (Onsite/Hybrid/Remote)
Duration: [Contract/Full-Time]

Job Summary

We are seeking a highly experienced Senior Network Engineer with 15+ years of hands-on experience in designing, implementing, securing, and supporting large-scale enterprise network infrastructure. The ideal candidate should have expertise in routing, switching, firewalls, wireless networking, VPNs, network security, cloud networking, and data center technologies. Experience working in complex enterprise environments is required.

Key Responsibilities

• Design, implement, and maintain enterprise LAN, WAN, WLAN, and SD-WAN environments.
• Configure and troubleshoot Cisco, Juniper, Arista, and Palo Alto network devices.
• Implement and manage routing protocols including BGP, OSPF, EIGRP, and MPLS.
• Configure Layer 2 and Layer 3 switching technologies including VLANs, STP, HSRP, and VRRP.
• Manage enterprise firewalls including Palo Alto, Cisco ASA, Fortinet, and Check Point.
• Configure VPN technologies including Site-to-Site VPN and Remote Access VPN.
• Support network monitoring using SolarWinds, PRTG, Cisco Prime, or similar tools.
• Implement high availability and disaster recovery solutions.
• Perform network capacity planning, performance tuning, and optimization.
• Troubleshoot complex network issues and perform root cause analysis.
• Support cloud networking on AWS, Azure, or Google Cloud Platform.
• Collaborate with security, infrastructure, cloud, and application teams.
• Create network architecture diagrams and technical documentation.
• Maintain network security policies and compliance standards.
• Lead network upgrades, migrations, and infrastructure modernization projects.
• Provide Level 3 support and mentor junior engineers.

Required Skills

• 15+ years of Network Engineering experience.
• Strong expertise in:
  • LAN/WAN
  • TCP/IP
  • Routing & Switching
  • BGP
  • OSPF
  • EIGRP
  • MPLS
  • VLAN
  • STP
  • HSRP
  • VRRP
  • DNS
  • DHCP
  • NAT
  • QoS
  • VPN
  • SD-WAN
  • Wireless Networking
  • Network Security
• Experience with:
  • Cisco Catalyst/Nexus
  • Cisco ISR/ASR
  • Juniper
  • Arista
  • Palo Alto
  • Cisco ASA
  • Fortinet
  • F5 Load Balancers
• Knowledge of cloud networking (AWS, Azure, Google Cloud Platform).
• Experience with network monitoring tools:
  • SolarWinds
  • PRTG
  • Wireshark
  • Cisco Prime
• Familiarity with automation using Python, Ansible, or Terraform is preferred.
• Strong troubleshooting and analytical skills.

Preferred Certifications

• CCIE Enterprise Infrastructure (Preferred)
• CCNP Enterprise
• Cisco Certified Specialist
• JNCIP / JNCIE
• PCNSE (Palo Alto)
• AWS Advanced Networking Specialty
• Azure Network Engineer Associate

Education

• Bachelor''s degree in Computer Science, Information Technology, Engineering, or related field.
• Master''s degree is a plus.