#EG Network Engineer / Senior Engineer (Day 1)

NCS Group; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading technology services firm in Singapore seeks a highly motivated Infra Engineer / Senior Engineer, Network. This position involves designing, implementing, and optimizing enterprise and data center network infrastructure. The ideal candidate should have over 2 years of IT or networking experience, with strong skills in Cisco ACI technologies and network security. Applicants will contribute to both independent and team projects, ensuring high-quality performance and compliance in network operations. The firm values excellence and integrity in every employee.

Qualifications

• 2 or more years of IT or networking experience.
• Good knowledge of Cisco ACI Technologies and Nexus Switches.
• Able to work independently and in a team.

Responsibilities

• Design, implement, and optimize enterprise/campus and data center network infrastructure.
• Translate high‑level network architecture into detailed technical designs.
• Monitor, analyze, and report on network performance using management tools.

Skills

Basic to Advanced Routing and Switching

Basic to Advanced Wired and Wireless networks

Network Security (ACL, Firewall, VPN, ISE)

Network Performance Monitoring

Education

CCNA/CCNP/CCIE Certification

Tools

Cisco ACI Technologies

Nexus Switches (7K, 9K)

Job description

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 15,000 has delivered large-scale, mission‑critical, and multi-platform projects for governments and enterprises in Singapore and the APAC region.

Job Description

We are looking for a highly motivated Infra Engineer / Senior Engineer, Network to design, implement, and optimise enterprise/campus and data centre network infrastructure. In this role, you will work on end‑to‑end network solutions—from translating high‑level architecture into detailed designs, to validating performance, ensuring security compliance, and driving operational excellence.

Responsibilities

• Translate high‑level network architecture into detailed technical designs, including physical and logical diagrams, traffic flows, and failover plans.
• Prepare clear and concise requirement documents and component‑level design validations for simple to complex network solutions.
• Maintain accurate documentation such as test plans, traceability matrices, and design artefacts, ensuring alignment across the project lifecycle.
• Configure and implement network infrastructure in accordance with the design and security requirements.
• Perform baseline security configuration of devices to meet compliance and best practices.
• Use network management tools to monitor, analyse, and report on network performance and status.
• Participate in root‑cause investigations, validating proper operation of network installations.
• Resolve routine to complex network issues by applying diagnostic tools and employing structured troubleshooting methods.
• Develop and execute test plans to validate network performance, reliability, and integration.
• Conduct functional and integration tests, document results, and clearly report issues or risks.
• Link requirements to test cases with proper traceability to ensure end‑to‑end validation of solutions investigations, validating proper operation of network installations.
• Able to work independently and also to work in a team.

Qualifications

• Experience: 2 or more years of IT or networking experience.
• Technical / Professional Skills: Certification – CCNA/ CCNP/ CCIE
• Networking Knowledge:
  • Basic to Advanced Routing and Switching
  • Basic to Advanced Wired and Wireless networks
  • Network Security (ACL, Firewall, VPN, ISE)
  • Network Performance Monitoring
• Specialization breakouts 1-2 domains

Minimum One Or More Area

• Data Center Network

Nexus Switches (7K, 9K) & NX‑OS Technologies

• OTV, vPC, Fex, VxLAN
• Fabric‑Path, Anycast Gateway
• Multicast

Cisco ACI Technologies (SD‑DC)

• L‑2, L‑3 Fabrics, VxLAN, Single‑POD Design
• L‑2 Out, L‑3 Out networks
• vPC, Anycast Gateway
• VMM Domain Integration
• L4‑L7 Services Integration

Others (Good To Have)

• Application Delivery Controllers, LSLB, GSLB
• NGFW, NGIPS, Application Detection Engines, Anti‑virus Anti‑Malware Engines
• Bandwidth Management Systems
• Secure Proxy Systems
• DNS Technologies
• Enterprise/Campus Network

Wired Network

• 2‑Tier, 3‑Tier Architectures
• MCE, SSO, NSF, Stack Switching
• MP‑BGP, MPLS‑VPN, Vrf‑lite
• Network Access Control, 802.1x, Posturing, Profiling

Wireless Network

• Radio Design, Heat Map, Site Survey Tools
• Wireless Security, Rouge AP detection & isolation
• Wireless Network Analytics
• Antenna Design and Signal Strength, data throughput

Software Defined Access Network

• VxLAN, AutoQoS, QoS Anywhere
• APIC‑EM, Cisco DNA Center
• SD‑WAN
• Security
• PKI Infrastructure
• NGFW, NGIPS, Application Detection Engines, Anti‑virus Anti‑Malware Engines
• Stealth Watch & AMP
• Cisco ISE / Aruba Clearpass
• Security Baseline of Network Equipment
• Vulnerability Assessment
• Programmability
• Ansible, Python, Rest API
• OpenStack, OpenShift, UCSD

Additional Information

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.

Scam Alert

We are aware of fraudulent job offers and impersonations of NCS recruiters. Phishing emails using convincing‑looking but fake addresses are also commonly used to trick you into thinking that they come from official NCS sources. All official communications from NCS Group will only be sent from verified corporate email addresses. Always check that the sender’s email address ends with the genuine NCS domain, @ncs.com.sg and beware of extra letters, symbols or misspellings. When in doubt, verify the sender’s identity by contacting us at [e-mail].