#EG Senior Engineer, Network & Security
Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Jul 1, 2026. NCS scores B on the Alion truth index.
NCS is a leading technology services firm that operates across the Asia Pacific region in over 20 cities, providing consulting, digital services, technology solutions, and more. We believe in harnessing the power of technology to achieve extraordinary things, creating lasting value and impact for our communities, partners, and people. Our diverse workforce of 13,000 has delivered large-scale, mission-critical, and multi-platform projects for governments and enterprises in Singapore and the APAC region.
We are seeking a motivated and detail-oriented Implementation Firewall Engineer to support the deployment, configuration, and implementation of network security solutions in enterprise environments. The candidate will be responsible for firewall implementation, VPN setup, troubleshooting, migration activities, and security policy management while ensuring minimal downtime and adherence to security standards.
Key Responsibilities?
- Deploy, configure, and implement firewall solutions in customer or enterprise environments
- Configure security policies, NAT rules, VPN tunnels, and access control lists (ACLs)
- Support firewall migration and cutover activities during implementation windows
- Troubleshoot network connectivity, routing, VPN, and firewall-related issues
- Perform firmware upgrades, backup, and restore activities
- 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
Essential Qualifications:
- Education & Experience: Degree or equivalent with 1-3 years in IT/networking
- Core Networking Skills: Routing & Switching fundamentals, Firewall Administration (security policy creation, rule optimisation, access control, zone based security, object and service management, high availability, etc), Security Concepts (IDS/IPS, URL filtering, App control, Threat Prevention, SSL inspection, Zero Trust, etc), Troubleshooting skills (Packet capture, log analysis, traffic flow, session monitoring, CLI debugging, etc)
- Specialization: Good in 1-2 brands of firewall knowledge, Enterprise Network, or Security
- Certification: Cisco Certified Network Associate (CCNA)/ Checkpoint CCSA/Palo Alto PCNSA/Fortinet NSE/CompTIA Security+
Technical Skills:
- Basic understanding of networking concepts (TCP/IP, VLAN, Routing, Switching)
- Knowledge of firewall technologies and security concepts
- Experience with VPN technologies (IPSec/SSL VPN)
- Familiarity with routing protocols such as OSPF/BGP is an advantage
- Basic troubleshooting and log analysis skills
- Familiarity with Linux/CLI environments
Soft Skills:
- Good communication and interpersonal skills
- Strong analytical and problem-solving abilities
- Ability to work independently and in a team environment
- Willingness to work during maintenance or implementation windows
- Good documentation and reporting skills
We are driven by our AEIOU beliefs-Adventure, Excellence, Integrity, Ownership, and Unity-and we seek individuals who embody these values in both their professional and personal lives. We are committed to our Impact: Valuing our clients, Growing our people, and Creating our future.
Together, we make the extraordinary happen.
Learn more about us at ncs.co and visit our LinkedIn career site.
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