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Cloud Network Engineer - L3

HCLTech
Singapore
S$8,000-S$10,000 p/m
Above market
Information & Communication Technology → Networks & Systems Administration
Full-time
On-site

Posted 20 hours ago


About the role

Provide SME-level expertise for AWS cloud networking, hybrid connectivity, cloud security, network modernization, and automation initiatives. Manage, support, and optimize enterprise cloud network infrastructure to ensure high availability, resilience, performance, and compliance. Act as the technical escalation point for complex cloud networking incidents, major outages, and transformation programs. Drive automation, operational excellence, observability, and continuous service improvement initiatives across cloud networking platforms. Collaborate with Cloud, Security, Infrastructure, Application, and Operations teams to deliver secure and scalable cloud network services.

Key responsibilities

Manage and support AWS cloud networking services including VPCs, Subnets, Route Tables, Internet Gateways, NAT Gateways, Transit Gateway, VPC Peering, Security Groups, NACLs, ALB/NLB, VPN, and Direct Connect

Provide SME-level support and technical leadership for cloud network operations, architecture, and service optimization

Lead troubleshooting and resolution of complex cloud networking incidents, connectivity issues, routing problems, latency, packet loss, and load balancer issues

Act as the technical escalation point for P1/P2 incidents and drive Major Incident Management activities

Perform Root Cause Analysis (RCA) and implement permanent corrective actions to reduce recurring incidents and improve service stability

Manage hybrid cloud connectivity solutions including AWS Direct Connect, Site-to-Site VPN, Transit Gateway, and on-premises integrations

Execute approved cloud networking changes, upgrades, and maintenance activities following ITIL-aligned change management processes

Support cloud transformation and modernization initiatives including VPC redesign, Transit Gateway adoption, network segmentation, and load balancer modernization

Implement and maintain cloud network security controls, ensuring compliance with enterprise security standards and regulatory requirements

Develop and maintain Infrastructure-as-Code (IaC) and automation solutions using Terraform, Ansible, and scripting technologies

About you

Bachelor's Degree in Computer Science, Information Technology, Electronics & Communication, Engineering, or related discipline

10+ years of experience in Enterprise Networking

Minimum 5+ years of hands-on experience in AWS Cloud Networking

Strong expertise in AWS Cloud Networking, including VPC, Subnets, Route Tables, Transit Gateway, VPC Peering, Direct Connect, Site-to-Site VPN, Internet Gateway, NAT Gateway, ALB, and NLB

Deep understanding of Enterprise Networking protocols including TCP/IP, BGP, OSPF, MPLS, SD-WAN, Routing, and Switching

Experience managing Hybrid Cloud Connectivity between AWS, on-premise data centers, branch locations, and third-party environments

Strong knowledge of Cloud Network Security including Security Groups, Network ACLs, network segmentation, and Zero Trust principles

Expertise in Infrastructure as Code (IaC) and automation using Terraform and Ansible

Proficiency in Python scripting and API-based automation for network operations and cloud provisioning

Experience with Cloud Monitoring and Observability tools such as AWS CloudWatch, Datadog, and Grafana


About HCLTech

Sydney, NSW, Australia
Information & Communication Technology
1001-5000 employees

HCLTech is a global technology company, home to more than 220,755 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending December 2024 totaled $13.8 billion. To learn how we can supercharge progress for you, visit hcltech.com

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