AWS Cloud Network Engineer (Terraform & CI / CD)

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

Job summary

HCLTech in Singapore seeks an experienced AWS Cloud Network Engineer to design, implement, and optimize AWS networking using Terraform-driven deployments. The role emphasizes strong hands-on AWS networking, Terraform modules, and CI/CD automation to enable scalable cloud infrastructure.

The ideal candidate has 5+ years of AWS networking experience, deep knowledge of VPCs, subnets, and load balancers, and a focus on security and operational excellence.

Qualifications

• Bachelor’s degree required in CS/IT or related field.
• Minimum 5 years of AWS cloud infrastructure experience with strong networking focus.
• Hands-on with VPC design, subnets, route tables, IGW/NAT, and ALB/NLB.

Responsibilities

• Design, implement, and manage AWS cloud network infrastructure using Terraform.
• Develop subnet strategies (public, private, isolated).
• Configure and maintain ALB/NLB, listeners, and target groups.
• Manage Security Groups and NACLs; ensure security best practices.
• Develop Terraform modules and CI/CD pipelines for deployments.
• Refactor and optimize Terraform code to reduce debt.
• Enhance automation for provisioning and configuration.
• Support cloud migration activities and troubleshooting.

Skills

AWS networking

Terraform

CI/CD automation

VPC design

Subnetting

Security Groups

NACLs

Load Balancers

Troubleshooting

Education

Bachelor’s degree in Computer Science/ IT or related field

Tools

Terraform

AWS

CI/CD pipelines

Git

Job description

We are seeking an experienced AWS Cloud Network Engineer with strong expertise in Infrastructure as Code (Terraform) and CI/CD automation. The ideal candidate will be responsible for designing, implementing, automating, and optimizing AWS cloud network infrastructure using Terraform-driven deployments. This role requires deep hands-on experience in AWS networking, strong troubleshooting skills, and the ability to enhance and maintain scalable cloud network environments.

Responsibilities

• Design, implement, and manage AWS cloud network infrastructure using Terraform. Create and modify Virtual Private Clouds (VPCs), subnets, route tables, gateways, and related networking components.
• Develop and implement subnet strategies (public, private, and isolated subnets).
• Configure and maintain Load Balancers (ALB/NLB), including listeners and target groups.
• Manage and optimize Security Groups and Network Access Control Lists (NACLs).
• Implement approved network designs using Terraform modules and CI/CD pipelines.
• Develop new Terraform modules and enhance existing ones to improve scalability and reusability.
• Refactor, clean up, and optimize existing Terraform code to eliminate technical debt.
• Enhance automation capabilities for infrastructure provisioning and configuration.
• Support cloud migration activities and ensure smooth transition to new environments.
• Troubleshoot complex AWS networking issues and provide root cause analysis.
• Ensure adherence to security best practices and organizational standards.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field
• Minimum 5 years of experience in AWS Cloud infrastructure with strong focus on networking.
• Extensive hands-on experience with: VPC design and configuration, Subnetting strategies, Route tables and gateways (IGW, NAT), Load Balancers (ALB/NLB), Security Groups and NACLs
• Strong expertise in Terraform: Writing reusable modules, Managing remote state, Code refactoring and optimization
• Experience with CI/CD pipelines for infrastructure deployment.
• Strong troubleshooting and analytical skills.
• Experience supporting cloud migration initiatives.
• Solid understanding of networking fundamentals (CIDR, DNS, routing, firewalls).
• Experience in enterprise-scale AWS environments.
• Familiarity with DevOps practices and Git-based workflows.
• Experience implementing security best practices in cloud environments.