L2 Network Security Engineer

About the Role

We are looking for a proactive L2 Network Security Engineer to join our Infrastructure & Security Operations team. You will be responsible for providing Level 2 support for enterprise network and security environments, ensuring the availability, performance, and security of critical customer infrastructure.

The ideal candidate is hands-on, enjoys troubleshooting complex technical issues, and has experience supporting enterprise networking and security technologies within a Managed Services or enterprise IT environment.

Key Responsibilities

Incident & Service Management

• Investigate and resolve Level 2 network and security incidents within agreed SLAs.
• Troubleshoot network connectivity, firewall, VPN, wireless, and routing issues.
• Perform detailed technical analysis to identify root causes of recurring incidents.
• Escalate complex issues to senior engineers (L3) when required.
• Provide accurate and timely ticket updates throughout the incident lifecycle.

Network Administration

• Configure and maintain enterprise network devices.
• Support LAN, WAN, SD-WAN, VPN, wireless, and switching environments.
• Troubleshoot routing and switching issues.
• Perform firmware upgrades and routine maintenance activities.
• Monitor network health and respond to alerts proactively.

Security Operations

• Administer firewall policies and security configurations.
• Configure and troubleshoot IPSec and SSL VPNs.
• Support security monitoring and incident response activities.
• Perform firewall rule reviews and implement approved changes.
• Assist with vulnerability remediation and security patching.

Change Management

• Execute approved infrastructure and network changes.
• Participate in maintenance windows and planned upgrades.
• Validate successful implementation of network changes.
• Maintain accurate technical documentation.

Documentation

• Document troubleshooting procedures and resolutions.
• Update knowledge base articles and operational runbooks.
• Maintain network diagrams and configuration records.

Customer Support

• Provide professional technical support to internal and external stakeholders.
• Communicate technical updates clearly during incidents.
• Work closely with L1 and L3 engineers to ensure timely issue resolution.

Required Skills & Experience

• 2–4 years of experience in Network and Security Engineering or Infrastructure Support.
• Experience supporting enterprise network environments.
• Strong troubleshooting skills across networking and security technologies.
• Experience working within an ITIL-based support environment.
• Excellent analytical and problem-solving skills.
• Strong communication and customer service skills.

Technical Skills

Networking

• TCP/IP
• VLANs
• Routing & Switching
• OSPF (basic knowledge)
• BGP (basic understanding)
• NAT
• DHCP
• DNS

Firewalls & Security

• Fortinet FortiGate
• Palo Alto (preferred)
• Cisco ASA / Firepower (preferred)
• Firewall Policy Management
• IPSec VPN
• SSL VPN
• ACLs

Network Technologies

• SD-WAN
• LAN/WAN
• Wireless Networking
• Load Balancing (basic understanding)

Monitoring & Tools

Experience with one or more

• PRTG
• SolarWinds
• Zabbix
• FortiAnalyzer
• FortiManager
• Cisco DNA Center (nice to have)

Operating Systems

• Windows Server
• Linux (basic administration)

IT Service Management

• Incident Management
• Change Management
• Problem Management
• ServiceNow, Jira, or similar ticketing platforms

Preferred Certifications

One or more of the following is desirable

• Fortinet Certified Professional (FCP) / NSE 4 or above
• Cisco CCNA
• Cisco CCNP (advantage)
• Palo Alto PCNSA (advantage)
• ITIL Foundation