Senior Network Security Engineer

About the role

A Senior Network & Security Engineer is needed in Moratuwa, Sri Lanka, on a hybrid basis, Monday to Friday at local standard working hours. The role covers monitoring, troubleshooting and maintaining enterprise network infrastructure and security, with on-call support and collaboration with internal teams, vendors and customers.

Key responsibilities

• Monitor, troubleshoot and resolve network and security incidents within agreed SLAs.
• Configure, maintain and support routers, switches, firewalls, wireless solutions and cloud environments.
• Perform system upgrades, security patching and infrastructure maintenance.
• Manage firewalls, VPNs, authentication systems and access control solutions.
• Support SD-WAN deployments and troubleshooting.
• Use monitoring tools to proactively identify and resolve issues.
• Maintain documentation, asset records and technical knowledge articles.
• Take part in on-call support, planned maintenance and service improvement initiatives.

Required profile

• Minimum 5 years of hands-on experience in network and security engineering.
• Experience supporting enterprise networks and working with clients and stakeholders.
• Previous managed services (MSP) experience is highly advantageous.
• Preferred certifications: CCNA / CCNP, Palo Alto PCCET, PCNSA or PCNSE, Fortinet NSE, Azure Administrator Associate, AWS Solutions Architect.

Required skills

• Cisco and/or Juniper routing and switching (CCNA / CCNP)
• Palo Alto firewalls, Cisco ASA, Cisco ISE, VPNs and NAC
• SD-WAN (Fortinet, VMware VeloCloud, Juniper), wireless networking, load balancing (F5, NetScaler)
• SolarWinds, Wireshark, Nagios, NetFlow, PRTG (advantageous)
• Cloud networking: Microsoft Azure, AWS, Google Cloud Platform