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Network Engineer (L2) - Part-Time

salary Salary :

$6,000 - 8,000 monthly

icon briefcase Job Type : Part-Time

Number of Applicants

 : 

000+

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Job Description - Network Engineer (L2) - Part-Time

Role Overview

We are seeking an experienced Network Engineer (L2) on a contract basis to support and operate enterprise network infrastructure across LAN, WAN, and cloud environments. The role requires hands-on expertise in switching, firewall management, VPNs, DNS/DHCP, and network security.

You will be responsible for maintaining network performance, implementing configurations using infrastructure-as-code, and ensuring high availability, security, and compliance across all network systems.

Key Responsibilities

Network Infrastructure & Operations

  • Manage and support LAN/WAN environments including VLANs, trunking, Spanning Tree, and Layer 3 routing.
  • Configure and maintain Aruba switching infrastructure (VLAN provisioning, port and policy management).
  • Monitor network performance, availability, and capacity to meet SLAs.

Firewall & Security Management

  • Administer Fortinet FortiGate and MikroTik firewalls including rule lifecycle, NAT, and security profiles.
  • Perform security patching (CVE) and ensure policy compliance.
  • Monitor and respond to network security incidents and anomalies.

VPN & Remote Access

  • Configure and manage SSL VPN and client VPN gateways.
  • Administer user access, profiles, and VPN tunnel health monitoring.

Core Network Services

  • Manage DNS, DHCP, and IPAM including zones, scopes, and IP allocation lifecycle.
  • Configure and maintain load balancing (rules, health checks, listeners).

Cloud & Advanced Networking

  • Support cloud networking environments (AWS/Azure/GCP) including virtual networks, routing, and security groups.
  • Deploy and manage cloud network virtual appliance (VA) firewalls.
  • Operate and maintain anti-DDoS solutions (on-prem and cloud-native).

Monitoring & Optimization

  • Use Cisco DNA Centre and Cisco ThousandEyes for network monitoring and synthetic testing.
  • Monitor QoS performance metrics and conduct trend analysis.
  • Perform regular performance tuning and policy optimization.

Automation & Configuration Management

  • Implement and manage Infrastructure as Code (IaC) using Terraform and Ansible.
  • Maintain version-controlled configurations and reusable templates.

Support & Governance

  • Provide L2 support for network incidents and service requests.
  • Participate in change management (CAB) and maintain audit records.
  • Maintain network documentation, runbooks, and topology diagrams.
  • Coordinate with vendors and L3 teams for escalations where needed.

Required Skills & Competencies

  • 2–5 years of experience in network engineering and operations
  • Hands-on experience with LAN/WAN, VLANs, routing, and switching
  • Strong experience with Aruba switches
  • Experience managing Fortinet FortiGate and/or MikroTik firewalls
  • Knowledge of VPN technologies (SSL VPN, client VPN)
  • Experience with DNS, DHCP, and IPAM solutions
  • Familiarity with network monitoring tools (Cisco DNA, ThousandEyes)
  • Exposure to cloud networking concepts (AWS/Azure/GCP)
  • Basic experience with Terraform and Ansible
  • Strong troubleshooting and analytical skills

Preferred Skills

  • Experience with load balancers and anti-DDoS solutions
  • Knowledge of network security frameworks and compliance standards
  • Scripting skills (Python, Bash)
  • Relevant certifications (CCNA, NSE, Aruba, etc.)
Original job Network Engineer (L2) - Part-Time posted on GrabJobs ©. To flag any issues with this job please use the Report Job button on GrabJobs.
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About the Company

NTT SINGAPORE PTE. LTD.

NTT Singapore Pte Ltd (NTTS) is the regional headquarters of NTT Communications Corporation (NTT Com) for Asia Pacific Region. Established in 1997, NTT Singapore has more than 10 years of expertise in providing information and communications technology (ICT) solutions worldwide. NTT Singapore...

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