Security jobs in Singapore

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 skilled and motivated System & Network Infrastructure Engineer to design, implement, manage, and support our IT infrastructure systems. You will play a critical role in ensuring the performance, availability, and security of enterprise systems and networks across our organization.

• Deploy, and maintain on-premises and cloud-based infrastructure solutions (e.g., servers, networks, storage).
• Administer and monitor enterprise systems including Windows/Linux servers, Active Directory, DNS, DHCP, virtualization platforms (VMware/Hyper‑V).
• Implement system updates, patches, and configuration changes in accordance with best practices.
• Perform regular system performance tuning, backup and recovery, and security monitoring.
• Collaborate with DevOps, security, and application teams to ensure infrastructure scalability and reliability.
• Troubleshoot and resolve hardware, software, and networking issues.
• Maintain detailed documentation for infrastructure architecture, configurations, and procedures.

• Diploma/Degree in Computer Science, Information Technology, or related field.
• 5+ years of experience in system administration or infrastructure engineering.
• Strong knowledge of Linux and Windows server environments.
• Proficient with Cisco, Huawei, Alcatel-Lucent or similar network hardware.
• Strong understanding of network protocols (e.g., BGP, OSPF, EIGRP, STP, VLANs, NAT, QoS).
• Experience with firewalls, VPNs, IDS/IPS, and other network security technologies.
• Familiarity with monitoring tools (e.g., SolarWinds, PRTG, Nagios).
• Understanding of network automation tools and scripting (e.g., Python, Ansible) is desirable.
• Experience with virtualization technologies (VMware, Hyper‑V, etc.)
• CCNP/ CCNA/ CISSP is preferred
• Excellent problem-solving and analytical skills.
• Strong communication and teamwork abilities.
• Ability to manage multiple tasks and prioritize effectively.

We are 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, wemake the extraordinary happen.

Learn more about us at ncs.co and visit our LinkedIn career site.