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NCS

ICT consulting, digital transformation, cybersecurity services

Implementation Firewall Engineer - Network & Security

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeSingaporeNo salary listedIn-person

About the Job

Requirements

  • A degree or equivalent and 1–3 years of experience in IT or networking.
  • Knowledge of routing and switching fundamentals, firewall administration, security policy creation, rule optimization, access control, zone-based security, object and service management, and high availability.
  • Knowledge of security concepts including intrusion detection and prevention systems, URL filtering, application control, threat prevention, SSL inspection, and Zero Trust.
  • Troubleshooting skills including packet capture, log analysis, traffic flow analysis, session monitoring, and command-line debugging.
  • Knowledge of one or two firewall brands, enterprise networking, or security.
  • Basic understanding of TCP/IP, VLANs, routing, and switching.
  • Knowledge of firewall technologies and security concepts.
  • Experience with VPN technologies, including IPSec and SSL VPN.
  • Basic troubleshooting and log analysis skills.
  • Familiarity with Linux and command-line environments.
  • Willingness to work during maintenance or implementation windows.
  • Documentation and reporting skills.

Responsibilities

  • Deploy, configure, and implement firewall solutions in customer or enterprise environments.
  • Configure security policies, NAT rules, VPN tunnels, and access control lists.
  • Support firewall migration and cutover activities during implementation windows.
  • Troubleshoot network connectivity, routing, VPN, and firewall-related issues.
  • Perform firmware upgrades, backups, and restores.
  • Validate firewall functionality and traffic flow after implementation.
  • Coordinate with internal teams, vendors, and customers during implementation activities.
  • Prepare implementation documentation, network diagrams, and handover reports.
  • Ensure compliance with security standards and organizational policies.
  • Participate in maintenance windows and change management processes.

Desired Qualifications

  • Familiarity with routing protocols such as OSPF or BGP.

About the Company

NCS

ICT consulting, digital transformation, cybersecurity services

NCS delivers ICT services in the Asia Pacific region, including consulting, digital transformation, technology solutions, and cybersecurity for government and private sector clients. It offers advisory, implementation, and managed services, supported by three innovation centers in Singapore, Melbourne, and Shenzhen and a workforce of about 13,000 across 20 cities. The company emphasizes long-term client partnerships, regional scale, and practical solutions developed at its innovation centers. Its goal is to help clients navigate digital transformation and cybersecurity while maintaining ethical conduct and transparent governance.

Company size
10,001+
Company stage
Grant
Total funding
$780K
Headquarters
Singapore, Singapore
Founded
1981

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