Job Summary

We are seeking a skilled and experienced Cloud Engineer (SRE – Level 2) 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