Senior MySQL DBA — AWS Migration & Cloud Optimization

KRISE SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 100,000 - 180,000; Full time

Job summary

KRISE SOLUTIONS PTE. LTD. seeks an experienced MySQL DBA to lead the migration of large MySQL environments to AWS, ensuring minimal downtime and robust performance. You will size and optimize AWS resources, design secure connectivity, and coordinate migration tooling such as DMS and MGN.

Responsibilities include configuring VPCs, HA/DR, backups, and post-migration validation while leveraging CloudWatch for proactive monitoring and tuning.

Qualifications

• 5–8+ years as MySQL DBA managing MySQL 5.7/8.0+ and MariaDB environments.
• Minimum 3+ years of hands-on AWS migration experience involving EC2, storage, and networking.
• Experience with GTID-based Replication, MySQL Group Replication, Orchestrator, ProxySQL, and AWS Network Load Balancer (NLB).

Responsibilities

• Lead end-to-end migration of multi-terabyte MySQL databases from on-premises to AWS with minimal downtime.
• Design near-zero-downtime migration and cutover strategies for business continuity.
• Assess workloads to size AWS infrastructure (CPU, memory, disk I/O).
• Configure hybrid connectivity using AWS Direct Connect and IPsec VPN.
• Execute migrations using AWS DMS and AWS MGN to ensure data integrity.
• Design and manage AWS VPC networking including subnets, routing, Security Groups, NACLs, and IAM policies.
• Configure and optimize EC2, EBS, and managed DB services for performance and cost-efficiency.
• Implement HA, DR, backup, and security solutions for resilience.
• Perform MySQL performance tuning, query optimization, and post-migration validation.
• Monitor health with CloudWatch, Performance Schema, and Slow Query Logs.

Skills

MySQL DBA

AWS migration

Performance tuning

Cloud architecture

Tools

ProxySQL

Amazon RDS

AWS DMS

AWS MGN

EC2

EBS

VPC

Direct Connect

IAM

KMS

Job description

KRISE SOLUTIONS PTE. LTD. seeks an experienced MySQL DBA to lead the migration of large MySQL environments to AWS, ensuring minimal downtime and robust performance. You will size and optimize AWS resources, design secure connectivity, and coordinate migration tooling such as DMS and MGN.

Responsibilities include configuring VPCs, HA/DR, backups, and post-migration validation while leveraging CloudWatch for proactive monitoring and tuning.