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Senior Network Security Engineer
Skaleartlinkedin.com
Nov 2, 2026, 10:07 PM2h ago
Full-timeColombo, Western ProvinceSecuritySenior (5+ yrs)
About the role
The Senior Network Security Engineer will be responsible for designing, implementing, maintaining, and troubleshooting enterprise network and security infrastructure. The role involves configuring and managing routers, switches, firewalls, wireless technologies, and network security solutions, as well as handling complex technical incidents and ensuring reliable infrastructure services. The position requires strong hands-on technical expertise with various networking and security technologies, and the ability to work independently on complex issues. The engineer will also coordinate with customers, vendors, and internal teams, and contribute to continuous service improvement.
Must have
- 5+ years of hands-on experience in network engineering and network security.
- Strong experience in routing and switching technologies, particularly Cisco or Juniper.
- Hands-on experience with enterprise firewall technologies such as Palo Alto, Cisco ASA/ISE or Fortinet.
- Strong understanding of network security, VPNs, access controls and network infrastructure.
- Experience with SD-WAN technologies.
- Experience with wireless networking and authentication solutions.
- Exposure to load balancing technologies such as F5 or NetScaler.
- Experience with network monitoring and troubleshooting tools such as SolarWinds, NetFlow, Nagios or Wireshark.
- Good understanding of cloud networking across AWS, Azure or GCP.
- Strong troubleshooting, analytical and problem-solving capabilities.
- Excellent communication and customer-facing skills.
Nice to have
- Relevant certifications such as CCNP, PCNSE, Fortinet NSE or equivalent.
- Experience working in managed services or enterprise IT environments.
- Experience handling complex escalations and supporting business-critical network infrastructure.
Technologies
- Authentication
- AWS
- Azure
- CCNP
- Cisco
- Firewall
- Firmware
- Fortinet
- GCP
- Nagios
- Network Security
- Palo Alto Networks
- SD-WAN
- SolarWinds
- VPN
- WAN
- Wireshark