Job Summary
We are seeking a skilled and experienced Cloud Engineer to support a secure and scalable cloud infrastructure for a Singapore Government-appointed agency operating on commercial cloud platforms. This Subject Matter Expert (SME) role requires real-world experience in managing multi-service cloud environments using AWS, strong Infrastructure-as-Code (IaC) capabilities, lifecycle and patching operations, and proactive operational support. The ideal candidate will be hands-on, security-aware, automation-driven, and familiar with strict uptime, compliance, and audit requirements.

Key Responsibilities
Cloud Infrastructure Operations
• Operate and maintain AWS-native services in production, including Lambda, ECS, EKS, FSx, Redshift, Glue, Neptune, SES, GuardDuty, WAF, Shield Advanced, Security Hub, KMS, Secret Manager, SNS, SQS, EventBridge, SageMaker, API Gateway.
• Ensure uptime, availability, and secure operations.
• Monitor infrastructure, manage alerts, and support production incidents.

Infrastructure as Code (IaC)
• Design and maintain infrastructure deployment pipelines using Terraform, CloudFormation, and Ansible.
• Troubleshoot environment drift and pipeline failures.
• Promote automation in cloud operations.

OS Lifecycle & Patch Management
• Manage patching across RHEL (v8→v9) and Windows Server (2016→2025) using AWS Patch Manager, WSUS, and YUM/DNF.
• Schedule, automate, and track patches.
• Coordinate approvals and ensure compliance.

SSL and EOL Management
• Track SSL certificate renewals across environments.
• Identify and remediate EOL components like OS versions and Lambda runtimes.

Tool Integration & Interoperability
• Integrate tools like NGINX and input into the observability stack.
• Work with SRE teams to enhance infrastructure monitoring.

Documentation & Reporting
• Maintain infrastructure runbooks, patch/change logs, post-mortem reports, and audit artifacts.

Soft Skills & Competencies
• Problem Solving – Troubleshooting complex systems
• Communication – Clear with technical and non-technical teams
• Collaboration – Cross-functional teamwork
• Adaptability – Responsive in changing environments
• Accountability – Takes ownership of outcomes
• Attention to Detail – Accurate and secure implementations
• Customer Focus – Supportive and service-oriented
• Time Management – Prioritizes critical tasks effectively
• Continuous Learning – Keeps up with cloud and security practices
• Resilience – Performs under pressure and in incidents

SME Expectations – Role Behavior
This Subject Matter Expert (SME) role requires:
• Proficiency across AWS services and architecture.
• Experience in uptime-critical and compliant environments.
• Mentorship capabilities for junior engineers.
• Initiative and proactive incident prevention.
• Calm and structured incident handling.
• Adherence to change and incident processes.
• Audit-readiness and documentation discipline.

Technical Skills & Experience
Area Skills Required
Cloud Hands-on with AWS services in production
IaC Terraform, CloudFormation, Ansible
OS RHEL & Windows Server administration
Patching AWS Patch Manager, WSUS, YUM/DNF
SSL/EOL Managed certs and lifecycle remediation
Documentation Runbooks, change logs, compliance docs

Required Qualifications
• Bachelor’s degree in computer science, Information Systems, or a related field
• Minimum 6 years’ experience in DevOps / SRE roles, with at least 4 years on public sector or regulated Cloud environment
• AWS Certified Solutions Architect
• RHCE or Microsoft Server Admin
• ITIL v4 Foundation (preferred)