Infrastructure Architect

Ambition Singapore; Singapore; On-site; SGD 180,000 - 240,000; Full time

Job summary

Ambition Singapore is seeking an experienced Infrastructure Architect to lead the design and evolution of hybrid and cloud infrastructure environments. This hands-on role requires strong AWS, network, compute, storage, DevOps, automation and security expertise, providing technical leadership across engineering and infrastructure teams.

You will drive modernization, cloud adoption and automation while establishing standards and governance.

Qualifications

• 10+ years IT infrastructure experience with cloud architecture and DevOps.
• Hands-on AWS expertise; Azure or GCP exposure advantageous.
• Strong enterprise networking knowledge: routing, VPNs, firewalls, load balancing, DNS.
• Experience with VMware, enterprise storage, backup and disaster recovery.
• Strong knowledge of Docker, Kubernetes and AWS EKS.
• Experience with CI/CD, GitOps and release automation.
• IaC experience with Terraform; CloudFormation or Ansible advantageous.
• Scripting with Python, Bash or PowerShell.
• Knowledge of cloud monitoring/observability tools such as CloudWatch, CloudTrail, VPC Flow Logs, OpenTelemetry.
• Strong cloud security knowledge: IAM, encryption and network security.

Responsibilities

• Design secure, scalable, highly available multi-cloud and hybrid architectures with AWS expertise.
• Define standards, frameworks and best practices across cloud, network, compute, storage and security.
• Lead cloud migration, adoption and infrastructure modernization initiatives.
• Architect containerised/serverless environments using Docker, Kubernetes/EKS, Lambda and Step Functions.
• Design and optimise enterprise networking (VPC, Transit Gateway, Direct Connect, VPN, load balancing, WAF).
• Provide architectural guidance across LAN/WAN, firewalls, DNS, DHCP, IPAM and network security.
• Ensure robust integration between on-premise and cloud environments.
• Design and oversee compute platforms (VMware, Hyper-V, EC2, bare-metal).
• Develop scalable storage, backup, archival and DR architectures (SAN/NAS, object storage).
• Drive performance, capacity planning and infrastructure hardening.

Skills

AWS

Cloud architecture

DevOps

Kubernetes

Terraform

CI/CD

Python

Networking

Security

VMware

Automation

GitLab

OpenTelemetry

Tools

Docker

Kubernetes/EKS

CloudFormation

Ansible

GitLab

Job description

We are looking for a highly experienced Infrastructure Architect to lead the design and evolution of complex hybrid and cloud infrastructure environments.

This is a hands-on architecture role suited to someone with strong expertise across AWS, network infrastructure, compute, storage, DevOps, automation and security. You will play a key role in infrastructure modernisation, cloud adoption, automation and operational resilience, while providing technical leadership across engineering and infrastructure teams.

Key Responsibilities

• Design secure, scalable and highly available multi-cloud and hybrid architectures, with strong AWS expertise.
• Define infrastructure architecture standards, frameworks and best practices across cloud, network, compute, storage and security.
• Lead cloud migration, adoption and infrastructure modernisation initiatives.
• Architect containerised and serverless environments using Docker, Kubernetes/EKS, Lambda and Step Functions.
• Design and optimise enterprise and cloud networking across VPC, Transit Gateway, Direct Connect, VPN, load balancing, WAF, routing and network segmentation.
• Provide architectural guidance across LAN/WAN, firewalls, DNS, DHCP, IPAM and network security.
• Ensure robust integration between on-premise and cloud environments.
• Design and oversee enterprise compute platforms including VMware, Hyper-V, EC2 and bare-metal infrastructure.
• Develop scalable storage, backup, archival and disaster recovery architectures across SAN/NAS and object storage.
• Drive performance optimisation, capacity planning and infrastructure hardening.

DevOps & Automation

• Lead the design and implementation of CI/CD pipelines, with GitLab preferred.
• Drive infrastructure automation using Terraform, CloudFormation and Ansible.
• Champion DevOps/SRE practices including observability, monitoring, incident management and reliability engineering.
• Automate infrastructure provisioning, configuration and policy enforcement.

Security & Governance

• Embed security controls across cloud and infrastructure environments, including IAM, KMS, encryption, SIEM and security baselines.
• Partner with security teams on Zero Trust, identity governance, compliance and audit readiness.

Technical Leadership

• Act as a senior technical escalation point for complex infrastructure, architecture and production issues.
• Mentor cloud, infrastructure, DevOps and operations engineers.
• Collaborate closely with application, network, security and engineering teams.
• Produce architecture documentation and communicate technical solutions to senior stakeholders.

What We're Looking For

• 10+ years of overall IT infrastructure experience, with 5+ years in cloud architecture and DevOps.
• Strong hands-on expertise in AWS; Azure or GCP exposure is advantageous.
• Strong knowledge of enterprise networking, including routing, VPN, firewalls, load balancing, DNS and cloud networking.
• Experience with VMware/virtualisation, enterprise storage, backup and disaster recovery.
• Strong knowledge of Docker, Kubernetes and AWS EKS.
• Experience with CI/CD, GitOps and release automation.
• Strong Infrastructure-as-Code experience, particularly Terraform, with CloudFormation or Ansible advantageous.
• Scripting/programming experience with Python, Bash or PowerShell.
• Knowledge of cloud monitoring and observability tools such as CloudWatch, CloudTrail, VPC Flow Logs and OpenTelemetry.
• Strong understanding of cloud security, IAM, KMS, encryption and network security.

Certifications

• AWS Solutions Architect - Professional preferred; Associate certification considered for candidates progressing towards Professional.
• Additional certifications in Azure, GCP, Kubernetes or Cyber Security are advantageous.

Preferred Experience

• Designing and managing hybrid on-premise and cloud environments.
• Designing DR/BCP strategies for mission-critical systems.
• Leading large-scale infrastructure modernisation and cloud transformation programmes.
• Experience within financial services or other highly regulated environments.
• Strong stakeholder management, communication and technical presentation skills.