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UNISON CONSULTING PTE. LTD.

ICT security engineer (Network Security)

Early Applicant
  • Posted 18 days ago
  • Be among the first 10 applicants
3-5 Years
SGD 6,800 - 9,900 per month

Job Description

  • Design, deploy, and maintain Extranet networks to enable secure and controlled access for external partners and vendors.
  • Implement and manage VPN solutions (site-to-site, remote access, SSL VPN, IPsec VPN) to secure communication channels.
  • Configure and maintain firewalls, VPN gateways, and related security infrastructure to protect Extranet and VPN traffic.
  • Monitor and troubleshoot VPN and Extranet connectivity issues to ensure uptime and performance SLAs.
  • Develop and enforce security policies for external network access, including identity and access management.
  • Collaborate with internal IT teams and external partners to establish and maintain trusted network connections.
  • Document network architecture, configurations, and procedures related to Extranet and VPN environments.
  • Perform regular audits, vulnerability assessments, and compliance checks on VPN and Extranet systems.
  • Provide support for incident response related to network breaches or access issues in Extranet/VPN areas.

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Required Skills and Qualifications:

  • Bachelor's degree in Computer Science, Information Technology, or related field.
  • 3+ years of experience in network engineering or administration with a focus on VPN and Extranet technologies.
  • Strong hands-on experience with VPN technologies: IPsec, SSL VPN
  • Working knowledge in configuring and managing firewalls and VPN gateways(Cisco ASA, Palo Alto, Fortinet, Check Point, etc.).
  • Solid knowledge of network protocols including TCP/IP, BGP, OSPF, and routing principles.
  • Familiarity with network security best practices, including encryption, authentication, and access controls.
  • Experience with monitoring and diagnostic tools for VPN and network performance.
  • Ability to document and communicate complex network configurations clearly.
  • To work with business unit focal from start to end and deploy the solutions required to connect client and partners over the B2B Extranet network

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Preferred Qualifications:

  • Certifications such as CCNA, CCNP or equivalent
  • Experience with multi-vendor VPN environments and complex Extranet architectures.
  • Understanding of Dot1Q, VXLAN, VRF and deployment
  • Knowledge of cloud-based VPN solutions and hybrid cloud networking.
  • Familiarity with network automation tools and scripting will be an advantage

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Working Conditions:

  • May require 24/7 on-call L3 support for critical network issues.
  • Change requests timings are usually after 12am, with compensation time off.
  • Occasional travel to data center for support.

More Info

Industry:Other

Function:Network Engineering

Job Type:Permanent Job

Date Posted: 13/09/2025

Job ID: 126042119

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Last Updated: 28-09-2025 08:06:53 PM
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