Senior AWS Cloud & Infra Engineer - HA/DR & Automation Lead

sagl consulting pte. ltd.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

sagl consulting pte. ltd. is seeking a senior AWS Cloud Engineer in Singapore to manage complex cloud infrastructure, handle escalations, optimise performance and support production environments. The role requires hands-on AWS expertise across EC2, Lambda, ECS and security services, plus Windows/Linux administration.

The successful candidate will lead troubleshooting, implement HA/DR solutions and drive automation to improve reliability and resilience in mission-critical systems.

Qualifications

• Minimum 6 years of overall relevant experience.
• Minimum 5 years in AWS/Cloud and Windows/Linux infrastructure operations.
• Strong hands‑on experience with EC2, Lambda, ECS, S3, IAM, KMS, WAF, Route 53 and CloudWatch.
• Strong Windows and Linux administration and troubleshooting skills.
• Experience in automation, HA/DR, performance optimisation and root cause analysis.
• Experience handling complex production infrastructure incidents.
• Bachelor's degree in IT, Computer Science or equivalent qualification.
• AWS Certified Solutions Architect – Professional and/or AWS Certified DevOps Engineer – Professional certification required.

Responsibilities

• Provide L3 technical support across AWS cloud services and operating systems.
• Administer and troubleshoot AWS EC2, Lambda, ECS, S3, IAM, KMS, WAF and Route 53.
• Manage AWS CloudWatch monitoring and AWS Backup services.
• Perform advanced Windows and Linux troubleshooting.
• Lead root cause analysis for recurring and critical infrastructure incidents.
• Analyse infrastructure performance and implement optimisation measures.
• Support automation of cloud and operating system administration tasks.
• Design and support High Availability (HA) and Disaster Recovery (DR) solutions.
• Execute complex infrastructure changes and validate implementation.
• Support cloud security, IAM, KMS, WAF and OS hardening.
• Provide technical escalation support to L1 and L2 engineers.

Skills

AWS Cloud

Windows Admin

Linux Admin

Automation

HA/DR

Root cause analysis

Performance optimisation

Incident management

Education

Bachelor's degree in IT/CS

Tools

EC2

Lambda

ECS

S3

IAM

KMS

WAF

Route 53

CloudWatch

Job description

sagl consulting pte. ltd. is seeking a senior AWS Cloud Engineer in Singapore to manage complex cloud infrastructure, handle escalations, optimise performance and support production environments. The role requires hands-on AWS expertise across EC2, Lambda, ECS and security services, plus Windows/Linux administration.

The successful candidate will lead troubleshooting, implement HA/DR solutions and drive automation to improve reliability and resilience in mission-critical systems.