Cloud Network Engineer

AVENSYS CONSULTING PTE. LTD.; Singapore; On-site; SGD 70,000 - 120,000; Full time

Job summary

Avensys is seeking a hands-on Cloud Network Engineer in Singapore to design, implement, operate, and troubleshoot AWS network infrastructure and security.

As the first point of contact for network issues, you will troubleshoot connectivity, routing, DNS, VPN, and latency, and work closely with Cloud, Infrastructure, Security, DevOps, and Application teams to deliver secure, scalable cloud solutions.

This role offers growth, competitive compensation, and a balanced work environment.

Qualifications

• 3+ years of hands-on experience in Network Engineering, Cloud Networking, or Cloud Infrastructure, with strong AWS networking and security.
• Strong troubleshooting and analytical skills to diagnose connectivity, routing, security, and performance issues.
• Excellent collaboration and communication with Cloud, Infrastructure, Security, DevOps, and Application teams.
• Strong TCP/IP, DNS, routing, NAT, VPN, and BGP knowledge.
• Proficiency with AWS networking services such as VPC, Security Groups, NACLs, Route 53, and WAF/Firewall.

Responsibilities

• Design, implement, operate, and maintain secure and highly available AWS network infrastructure.
• Configure and support TGW, VPC Peering, PrivateLink, VPN, and Direct Connect.
• Manage ALB, NLB, and Route 53; monitor with CloudWatch and VPC Flow Logs.
• Implement AWS security services including WAF, Network Firewall, and Shield Advanced.
• Troubleshoot network traffic and connectivity using Wireshark and other tools.
• Perform RCA, provide resolutions, and drive preventive actions.
• Collaborate with Cloud, Infrastructure, Security, DevOps, and Application teams.
• Maintain documentation and ensure standards for performance, security, scalability.
• Participate in cloud implementations, migrations, and infrastructure improvements.
• Maintain up-to-date knowledge of AWS networking and security services.

Skills

Troubleshooting

Networking fundamentals

Communication

Collaboration

AWS Networking

Tools

AWS

VPC

Security Groups

NACLs

Route Tables

Transit Gateway

VPC Peering

Direct Connect

ALB/NLB

Route 53

WAF/Shield

CloudWatch

Wireshark

Job description

Avensys is a reputed global IT professional services company headquartered in Singapore. Our service spectrum includes enterprise solution consulting, business intelligence, business process automation and managed services. Given our decade of success, we have evolved to become one of the top trusted providers in Singapore and service a client base across banking and financial services, insurance, information technology, healthcare, retail, and supply chain.

We are currently looking to hire Cloud Network Engineer This is an exciting opportunity to expand your skill set, achieve job satisfaction and work-life balance. More details as below.

Position Summary

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

Qualifications

• 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.

Overview

WHAT'S ON OFFER

You will be remunerated with an excellent base salary and entitled to attractive company benefits. Additionally, you will get the opportunity to enjoy a fun and collaborative work environment, alongside a strong career progression.