Principal Database Engineer (Contract)

Responsibilities

• Lead the operation and optimisation of database platforms, ensuring high availability, data integrity, and sufficient capacity for business growth and peak workloads.

• Identify and resolve database performance and architecture risks, including slow queries, oversized Redis keys, and inappropriate dependencies on caching systems.

• Plan and execute database version upgrades and security patches, with tested rollback procedures and minimal service disruption.

• Assess database software, infrastructure, and availability risks, working with cloud providers and engineering teams to implement improvements.

• Establish standards for database configuration, monitoring, backup, disaster recovery, and cost management.

• Design and develop database management tools and automation using Go or Python.

• Provide technical guidance on database selection, architecture, and production incident resolution.

Requirements

• At least 8 years of hands-on database administration or engineering experience supporting large-scale production environments.

• Experience owning database operations within an organisation’s internal engineering team.

• Deep expertise in MySQL and Redis, including architecture, performance tuning, replication, high availability, and recovery.

• Strong working knowledge of TiDB and distributed database concepts.

• Hands-on experience with AWS services such as VPC, Amazon Aurora, Amazon RDS, and Amazon ElastiCache for Valkey.

• Proficiency in Python or Go, with experience developing database management platforms or operational automation tools.

• Experience with capacity planning and maintaining database reliability during significant traffic spikes.

• Ability to define availability and recovery targets and implement tested procedures to meet them.

• Strong problem-solving, collaboration, and change management skills, including clear communication during production incidents.

Nice to Have

• Experience with Elasticsearch, Amazon OpenSearch Service, or Apache Doris.

• Experience with geographically separate backups, disaster recovery, data classification, and data masking.

• Experience supporting data security audits and compliance initiatives.

Wong Shu Teng Joey

EA License: 23C2060

Reg ID: R2095170

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