AWS Cloud Network Engineer (Terraform & CI / CD)

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

Job summary

HCLTech in Singapore is seeking an experienced AWS Cloud Network Engineer with deep expertise in Terraform and CI/CD automation. You will design, implement, and optimize AWS networking infrastructure, build reusable Terraform modules, and drive secure, scalable network deployments.

The role requires 5+ years in AWS networking, strong troubleshooting, and a solid grasp of VPCs, subnets, route tables, ALB/NLB, Security Groups, and NACLs.

Qualifications

• 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, subnets, route tables, gateways, and ALB/NLB.
• Strong expertise in Terraform: writing modules, managing remote state, refactoring.

Responsibilities

• Design, implement, and manage AWS cloud network infrastructure using Terraform.
• Develop subnet strategies (public, private, and isolated).
• Configure and maintain Load Balancers (ALB/NLB) with listeners and target groups.
• Manage and optimize Security Groups and NACLs.
• Implement Terraform modules and CI/CD pipelines for deployment.
• Develop new Terraform modules and enhance existing ones for scalability.
• Refactor, clean up, and optimize existing Terraform code to reduce debt.

Skills

AWS networking

Terraform

CI/CD automation

Networking troubleshooting

Education

Bachelor's degree in CS/IT

Tools

CI/CD pipelines

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.