DBA Position/Database Operations Engineer

CEKAP LINK TECH SDN. BHD.; Kuala Lumpur; On-site; MYR 90,000 - 140,000; Full time

Job summary

CEKAP LINK TECH SDN. BHD. is seeking an experienced DBA to maintain production databases across MySQL, MongoDB, and Redis, focusing on high availability and performance optimization.

You will design scalable architectures, implement read/write splitting for high concurrency, and contribute to data model design while documenting deployment and operations.

Qualifications

• At least 3+ years of DBA experience.
• Deep knowledge of MySQL internal architecture.
• Experience with high-availability designs for MongoDB, Redis, and MySQL.
• Strong performance optimization and SQL tuning skills.
• Expertise in read/write splitting under high concurrency.
• Ability to ensure sub-second queries on billion-row tables at very high QPS.
• Experience with microservices and globally distributed deployments.
• Knowledge of hot/cold data separation and data lifecycle planning.
• Nice to have cross-border logistics industry experience.

Responsibilities

• Maintain, monitor, back up, and troubleshoot production databases and their operating systems to ensure stable, uninterrupted operation.
• Plan, design, and implement high-availability database architectures for MySQL, MongoDB, and Redis; establish standardized database management practices.
• Conduct performance analysis, SQL tuning, and troubleshooting of locking and transaction issues; optimize read/write splitting to support high-concurrency scenarios and prevent major production incidents.
• Review and deploy database code for new business launches, and design data models.
• Introduce new technologies and middleware, plan data lifecycle and hot/cold data separation to meet evolving business needs.
• Write database deployment, operations, and training documentation.

Skills

DBA experience

MySQL architecture

High-availability design

Performance tuning

SQL optimization

Read/Write splitting

Distributed deployment

Data lifecycle planning

Job description

DBA Position/Database Operations Engineer

This is a Database Administrator (DBA) role focused on maintaining, monitoring, and optimizing production databases across MySQL, MongoDB, and Redis platforms. You will design high-availability database architectures, ensure stable uninterrupted operation, and support business growth through database performance optimization and new technology implementation.

Key responsibilities

• Maintain, monitor, back up, and troubleshoot production databases and their operating systems to ensure stable, uninterrupted operation
• Plan, design, and implement high-availability database architectures for MySQL, MongoDB, and Redis; establish standardized database management practices
• Conduct performance analysis, SQL tuning, and troubleshooting of locking and transaction issues; optimize read/write splitting to support high-concurrency scenarios and prevent major production incidents
• Review and deploy database code for new business launches, and design data models
• Introduce new technologies and middleware, plan data lifecycle and hot/cold data separation to meet evolving business needs
• Write database deployment, operations, and training documentation

About you

• 3+ years of DBA experience
• In-depth knowledge of MySQL's internal architecture and principles
• Familiar with high-availability architecture design for MongoDB, Redis, and MySQL, with solid experience in database fault tolerance
• Deep understanding of performance optimization, SQL tuning, and locking/transaction issues
• Hands-on experience designing and maintaining read/write splitting under high concurrency
• Ability to ensure sub-second query performance for billion-row tables at tens of thousands of QPS through data architecture optimization and middleware adoption
• Familiarity with microservices and globally distributed deployments with data synchronization
• Experienced in hot/cold data separation and data lifecycle planning
• Cross-border logistics industry experience (e.g., systems for logistics, warehousing, line-haul transportation, pickup and delivery) is a plus