Senior AWS Cloud & Infrastructure Engineer (L3)
Summary
Senior (L3) cloud infrastructure engineer at an IT consulting firm in Singapore: handles escalated AWS production incidents, root cause analysis, HA/DR design, and infrastructure optimisation across EC2, Lambda, ECS, S3, IAM, KMS, WAF, Route 53 and CloudWatch, with advanced Windows/Linux administration and escalation support to L1/L2 engineers.
Job Description
We are looking for a senior AWS Cloud Engineer with strong expertise in cloud infrastructure and Windows/Linux systems to handle complex technical escalations, infrastructure optimisation and production support.
Key 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.
Requirements
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.
#AWS #AWSArchitecture #CloudInfrastructure #Linux #WindowsServer #AWSBackup #DisasterRecovery #CloudOperations