Cloud Engineer

Ncs3; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

NCS is seeking a hands-on Cloud Network Engineer to design, implement, operate, and troubleshoot secure AWS network infrastructure and security within cloud environments. The role requires strong networking fundamentals and practical AWS experience.

You will be the first point of contact for network issues, perform RCA, and collaborate with Cloud, Infrastructure, Security, DevOps, and Applications teams to deliver scalable, reliable cloud solutions while documenting configurations and standards.

Qualifications

• Hands-on experience in designing and operating AWS network infrastructure and security.
• Strong troubleshooting and analytical skills for network connectivity, routing, and performance issues.
• Experience collaborating with Cloud, Infrastructure, Security, DevOps and Applications teams.

Responsibilities

• Design, implement, operate, and maintain secure and highly available AWS network infrastructure.
• Manage and troubleshoot VPCs, Security Groups, NACLs, Route Tables, NAT, and related components.
• Configure and support Transit Gateway, VPC Peering, Endpoints, VPNs, and Direct Connect.
• Manage ALB/NLB and Route 53; monitor with VPC Flow Logs and CloudWatch.
• Implement AWS security services like AWS WAF, Network Firewall, and Shield Advanced.
• Perform RCA, document findings, and implement preventive actions for recurring issues.
• Collaborate across teams to deliver secure cloud networking solutions.
• Ensure configurations meet performance, security, scalability, and reliability standards.

Skills

Cloud Networking

AWS Networking

Network Troubleshooting

Root Cause Analysis

VPC & Security

DNS & TCP/IP

Tools

AWS

Terraform

CloudFormation

Ansible

VPC Flow Logs

Wireshark

Job description

This is a hands-on Cloud Network Engineering role, responsible for designing, implementing, operating, and troubleshooting network infrastructure and security within AWS cloud environments. The ideal candidate will have strong networking fundamentals and practical experience with AWS networking and security services.

The candidate will serve as the first point of contact for network-related issues, independently troubleshooting connectivity, routing, security, and performance issues, performing Root Cause Analysis (RCA), and working closely with Cloud, Infrastructure, Security, DevOps, and Application teams.

What will you do?

• Design, implement, operate, and maintain secure and highly available AWS network infrastructure
• Manage and troubleshoot Amazon VPC, Security Groups, Network ACLs (NACLs), Route Tables, NAT, and related AWS networking components
• Configure and support AWS Transit Gateway (TGW), VPC Peering, VPC Endpoints (PrivateLink/Gateway Endpoints), Site-to-Site VPN, and AWS Direct Connect
• Manage and troubleshoot Application Load Balancer (ALB), Network Load Balancer (NLB), and Amazon Route 53
• Implement and support AWS security services including AWS WAF, AWS Network Firewall, and AWS Shield Advanced
• Monitor and troubleshoot network traffic and connectivity using VPC Flow Logs, Amazon CloudWatch, Wireshark, and other network diagnostic tools
• Act as the first point of contact for network-related incidents and independently troubleshoot connectivity, routing, DNS, VPN, latency, and performance issues
• Perform Root Cause Analysis (RCA), provide appropriate resolution, and implement preventive actions for recurring network issues
• Collaborate with Cloud, Infrastructure, Security, DevOps, and Application teams to resolve network-related issues and deliver cloud solutions
• Ensure network configurations meet required standards for performance, security, scalability, availability, and reliability with proper documentation
• Participate in cloud implementations, migrations, network transformation, and infrastructure improvement projects
• Maintain technical knowledge of AWS networking and security services and contribute to continuous improvement of the cloud environment

Requirements and Experience

• 3+ years of hands-on experience in Network Engineering, Cloud Networking, or Cloud Infrastructure, with strong experience in AWS networking and security
• Problem Solving. Strong troubleshooting and analytical skills with the ability to independently diagnose network connectivity, routing, security, and performance issues and perform effective RCA
• Collaboration and Communication. Ability to work effectively with Cloud, Infrastructure, Security, DevOps, and Application teams and communicate technical issues and solutions clearly
• Technical. Strong networking foundation with hands-on experience in TCP/IP, DNS, routing, NAT, VPN, and BGP
• Strong hands-on experience with Amazon VPC, Security Groups, Network ACLs (NACLs), Route Tables, AWS WAF, AWS Network Firewall, AWS Shield Advanced, ALB, NLB, Transit Gateway (TGW), Route 53, VPC Peering, VPC Endpoints (PrivateLink/Gateway Endpoints), Site-to-Site VPN, AWS Direct Connect, VPC Flow Logs, and Amazon CloudWatch
• Experience with Wireshark or similar network traffic analysis and troubleshooting tools
• Ability to troubleshoot hybrid cloud and on-premises connectivity and resolve complex network issues
• AWS networking or cloud certifications would be advantageous
• Experience with network automation or Infrastructure as Code tools such as Terraform, CloudFormation, or Ansible would be advantageous

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.