Senior AWS Cloud Architect — Cost-Savvy & Secure Cloud

Unison Group; Singapore; On-site; SGD 140,000 - 210,000; Full time

Job summary

Unison Group is seeking a highly experienced Cloud Architect to lead architecture and engineering efforts for enterprise cloud solutions in Singapore. The role emphasizes translating architecture into automated, scalable implementations using AWS services and IaC tooling.

The candidate will shape cloud strategy, governance, and security controls while collaborating with CloudOps, SRE, DBA, security, and business stakeholders. A hands-on, results-oriented mindset is essential.

Qualifications

• 7-8+ years of experience in cloud architecture and engineering roles.
• Strong hands-on expertise with AWS core services including EC2, ECS/EKS, Lambda, ELB, RDS, EFS, FSx, S3, KMS, Secrets Manager, EventBridge, CloudWatch, and IAM.
• Strong understanding of AWS networking concepts such as VPC, Transit Gateway, Direct Connect, routing, and security controls.
• Solid understanding of container-based deployments, orchestration, and lifecycle management.
• Proficiency in scripting and automation using Python, Ansible, Bash, or PowerShell.
• Strong experience with CI/CD and Infrastructure-as-Code tools such as GitLab, CloudFormation, and Terraform.
• Proven ability to design and implement scalable, resilient, secure, and cost-optimized architectures.
• Good understanding of cloud security practices, including IAM, encryption, secrets management, and access controls.
• Strong troubleshooting, problem-solving, and performance tuning skills.
• Excellent communication skills with the ability to engage stakeholders across different levels, including engineers, architects, and management teams.

Responsibilities

• Lead design and implementation of cloud-native architectures for enterprise workloads.
• Define and maintain cloud reference architectures, reusable patterns, and engineering standards.
• Review solution architectures and provide recommendations on scalability, reliability, high availability, performance, security, and cost optimization.
• Drive adoption of AWS best practices across projects and platforms.
• Partner with enterprise architects, business stakeholders, and engineering teams to align technology with business objectives.
• Support cloud transformation initiatives and modernization programs.
• Design and implement GitLab CI/CD pipelines and automation frameworks.
• Build and manage AWS infrastructure and services including EC2, ECS, EKS, Lambda, ELB, RDS, EFS, FSx, S3, KMS, Secrets Manager, EventBridge, CloudWatch.
• Develop Infrastructure-as-Code using CloudFormation and Terraform; scripting in Python, Ansible, Bash, PowerShell.

Skills

Cloud architecture

Leadership

Automation

Communication

CI/CD

Infrastructure as Code

Tools

GitLab CI/CD

CloudFormation

Terraform

Python

Ansible

Bash

PowerShell

EC2

ECS

EKS

Lambda

S3

KMS

Secrets Manager

EventBridge

CloudWatch

IAM

Job description

Unison Group is seeking a highly experienced Cloud Architect to lead architecture and engineering efforts for enterprise cloud solutions in Singapore. The role emphasizes translating architecture into automated, scalable implementations using AWS services and IaC tooling.

The candidate will shape cloud strategy, governance, and security controls while collaborating with CloudOps, SRE, DBA, security, and business stakeholders. A hands-on, results-oriented mindset is essential.