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Open nowFirst seen 19 hours ago

L2 Network Security Engineer

Skaleart31 open roles

Where
Colombo, Sri Lanka
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Your applicationOpen nowL2 Network Security EngineerSkaleart · Colombo, Sri Lanka

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Skaleart's own form.

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The clock on this job

Early applications get read.

11.3% of postings close within 7 days. Measured by our own scanner across the market. Skaleart postings stay open a median of 1 days.

Share of postings closed within
  1. 2.0%1 day
  2. 4.2%3 days
  3. 11.3%7 days
  4. 17.6%14 days
  5. 34.3%30 days
  6. 43.5%60 days
This job: first seen 19 hours ago

Skaleart median: 1 days open

The posting

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
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