Network Security Engineer

2 days ago

Muscat, Muscat, Oman Integrated Systems LLC Full time 70,000 - 120,000 per year

Location:
Bowsher

Employment Type:
Full-time

About the Role:

We are seeking a motivated
Network & Security Engineer
with strong fundamentals in networking and security to join our team. The ideal candidate should have solid technical knowledge of Layer 2/3 networking, switching concepts, and firewall management, along with a willingness to learn and grow in a dynamic environment.

Key Responsibilities:

  • Configure, manage, and troubleshoot network infrastructure devices (switches, firewalls, etc.).
  • Implement and support VLANs, trunk/access ports, and inter-VLAN routing.
  • Maintain and optimize network performance, ensuring redundancy and loop prevention using LACP and STP.
  • Manage firewall environments (preferably FortiGate), including policy creation, troubleshooting, and upgrades.
  • Support VPN configuration and troubleshooting.
  • Provide basic DNS and DHCP administration, including IP helper configuration.
  • Collaborate with team members on network projects, security implementations, and incident resolution.

Requirements:

  • Strong understanding of the
    OSI Model
    (Layer 2 & Layer 3).
  • Clear knowledge of
    access vs. trunk ports
    (tagged/untagged traffic) and their use cases.
  • Experience with
    LACP
    and
    STP
    , with the ability to prevent and troubleshoot network loops.
  • Practical knowledge of
    VLANs
    ,
    SVIs (Switch Virtual Interfaces)
    , and
    inter-VLAN routing
    .
  • 1–2 years of hands-on experience with firewalls
    (FortiGate experience preferred).
  • Basic understanding of
    DNS
    and
    DHCP (including IP helper addresses)
    .
  • Basic knowledge of
    VPNs
    (site-to-site and remote access).
  • Excellent troubleshooting skills and eagerness to learn new technologies.

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