MySQL Database Administrator (DBA) – AWS Migration

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

Company Overview

KRISE SOLUTIONS PTE LTD is an IT services and technology consulting firm driving business growth and digital transformation through expert IT solutions and flexible workforce models across APAC.

Job Summary

We seek an experienced MySQL Database Administrator (DBA) with strong AWS cloud migration expertise to lead the migration of multi-terabyte on-premises MySQL environments to AWS.

Responsibilities

• Lead end-to-end migration of multi-terabyte MySQL databases from on-premises VMware/Hyper-V/KVM environments to AWS, ensuring minimal downtime
• Design and implement near-zero-downtime migration and cutover strategies to maintain business continuity
• Assess workloads including CPU, memory, and disk I/O to accurately size AWS infrastructure
• Configure hybrid connectivity using AWS Direct Connect and IPsec VPN for secure, reliable network integration
• Execute migrations using AWS Database Migration Service (AWS DMS) and AWS Application Migration Service (AWS MGN) to ensure data integrity and efficiency
• Design and manage AWS VPC networking including subnets, routing, Security Groups, Network ACLs, and IAM policies for secure and scalable environments
• Configure and optimize Amazon EC2 instances, EBS storage, and AWS Managed Database services to maximize performance and cost-efficiency
• Implement High Availability, Disaster Recovery, backup, and security solutions to safeguard data and ensure service resilience
• Perform MySQL performance tuning, query optimization, and post-migration validation to ensure database reliability and speed
• Monitor database health and performance using Amazon CloudWatch, Performance Schema, and Slow Query Logs to proactively address issues

Required competencies and certifications

• Proven expertise as MySQL DBA with 5-8+ years managing MySQL 5.7/8.0+ and MariaDB environments
• Minimum 3+ years of hands-on AWS migration experience involving EC2, storage, and networking
• Skilled in AWS services including Amazon RDS, AWS DMS, AWS MGN, AWS EC2, EBS, VPC, Direct Connect, IPsec VPN, Transit Gateway, IAM, and KMS
• Experience with GTID-based Replication, MySQL Group Replication, Orchestrator, ProxySQL, and AWS Network Load Balancer (NLB)
• Strong knowledge of backup, High Availability, and Disaster Recovery best practices

Preferred competencies and qualifications

• Experience migrating on-premises virtualized infrastructure (VMware/Hyper-V/KVM) to AWS
• Strong troubleshooting, performance tuning, and production database administration skills
• Initial Engagement 3months with potential renewable.