We are seeking a Senior Network Engineer to design, secure, and support our enterprise network infrastructure. The ideal candidate brings strong Cisco expertise (NX-OS, IOS-XE, ASR), deep routing and switching knowledge, hands-on firewall and wireless experience, and a solid understanding of network security and monitoring best practices.
Responsibilities:

• Design, deploy, and maintain core network infrastructure across switching, routing, firewalls, wireless, and WAN environments.
• Troubleshoot complex technical issues, perform root-cause analysis, and ensure high availability, resilience, and performance.
• Implement and enforce network security controls including segmentation, firewall policies, VPNs, MFA/2FA, and L2/L3 security mechanisms.
• Manage and optimize wireless environments (Ruckus, Mikrotik, Ubiquiti).
• Maintain routing policies and high-availability technologies (VPC, LACP, load balancing, etc.).
• Operate, tune, and improve monitoring and observability systems (SNMP, telemetry, Prometheus, Grafana, Splunk, PRTG, Zabbix, SolarWinds).
• Produce clear network documentation, standards, and diagrams, and participate in knowledge sharing with the team.

Required Skills:

• Minimum 3 years of hands-on experience in network engineering or a similar technical role.
• Strong experience with Cisco NX-OS, IOS-XE, ASR platforms, and Firepower appliances.
• Deep understanding of L2/L3/L4 networking (VLANs, STP, ACLs, QoS, NAT, VRFs, VPC, EtherChannel/LACP).
• Hands-on experience with firewalls: Fortigate, Mikrotik, pfSense, OPNsense.
• Expert-level knowledge of VPN and tunneling technologies: IPsec, WireGuard, OpenVPN, SSL-VPN, L2TP, PPTP, ZeroTier.
• Strong routing protocol experience: OSPF, EIGRP, BGP.
• Experience with WAN, SD-WAN, load balancing, and HA solutions.
• Linux administration fundamentals.
• Wireless expertise with Ruckus, Mikrotik, Ubiquiti, etc.
• Understanding of MFA/2FA, access controls, and network security principles.
• Knowledge of VoIP traffic requirements (jitter, latency, QoS).

Preferred Skills:

• Network automation: Ansible, Terraform, Python.
• Understanding of HTTP/HTTPS, REST APIs, and general web communication concepts.
• Familiarity with PKI, certificates, and encryption.
• Experience integrating logs with SIEM tools.
• Understanding of microservices and container networking (Docker, Kubernetes).
• Exposure to ITIL or similar service-management frameworks.
• Preferred Certifications (any of the following):
• Cisco: CCNA, CCNP Enterprise, CCNP Security
• Fortinet: NSE4 or above
• CWNP: CWNA (for wireless)
• Linux Foundation: LFCS or LPIC
• VMware VCP/VCAP