Senior Database QA Engineer

Newbridge Alliance Pte Ltd; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Newbridge Alliance Pte Ltd is seeking a Database Test Engineer to own the quality and reliability of cloud-native database services. You will build and maintain an automated testing framework that validates every release, patch, and architecture change before production.

Between DBA, QA, and DevOps, this role demands deep database knowledge and the ability to code automated tests at scale. You will work across MySQL, PostgreSQL, Redis, MongoDB, ClickHouse, and Elasticsearch to ensure robust

Qualifications

• Minimum 5+ years in Database Testing/QA/DBA role with strong testing focus.
• Experience with at least two databases (MySQL, Redis, MongoDB, PostgreSQL, ClickHouse).
• Deep understanding of database internals: replication, ACID, transactions, indexing, backup/restore.
• Proficiency in test automation with Python/Go/Shell.
• Experience with Linux, SQL, and performance testing tools (Sysbench is a must).
• Experience working in high-traffic internet companies handling large-scale databases.

Responsibilities

• Own end-to-end testing for database products: MySQL, PostgreSQL, Redis, MongoDB, ClickHouse, Elasticsearch.
• Design and execute test strategies covering: functional, HA/failover, backup & recovery, upgrade, compatibility, and data consistency testing.
• Build and maintain automated testing platform (Python / Go) for large-scale database clusters.
• Conduct performance and stress testing using Sysbench, TPCC, JMeter and develop custom workload simulators.
• Validate high-availability architectures: replication, failover, switchover, disaster recovery.
• Collaborate closely with Database Engineers, SREs, and Backend teams to reproduce issues and certify fixes.
• Integrate database testing into CI/CD pipelines and improve observability (Prometheus, Grafana, ELK).

Skills

Database Testing

Test Automation

Python

Go

SQL

Linux

Performance Testing

Cloud DBaaS

Tools

Sysbench

JMeter

Prometheus

Grafana

ELK

Kubernetes

Job description

We are seeking a Database Test Engineer to own the quality and reliability of our clients cloud-native database services. You will be responsible for building the automated testing framework that validates every database release, patch, and architecture change before it hits production.

This role sits between DBA, QA, and DevOps - ideal for someone who understands databases deeply and can code automation to test them at scale.

Key Responsibilities

• Own end-to-end testing for database products: MySQL,PostgreSQL, Redis, MongoDB, ClickHouse, Elasticsearch
• Design and execute test strategies covering: functional, HA/failover, backup & recovery, upgrade, compatibility, and data consistency testing
• Build and maintain automated testing platform (Python / Go) for large-scale database clusters
• Conduct performance and stress testing using Sysbench, TPCC, JMeter and develop custom workload simulators
• Validate high-availability architectures: replication, failover, switchover, disaster recovery
• Collaborate closely with Database Engineers, SREs, and Backend teams to reproduce issues and certify fixes
• Integrate database testing into CI/CD pipelines and improve observability (Prometheus, Grafana, ELK)

Mandatory Requirements

• 5+ years of experience in Database Testing, Database QA, or DBA role with strong testing focus
• Strong hands‑on expertise in at least 2 of: MySQL, Redis, MongoDB, PostgreSQL, ClickHouse
• Deep understanding of database internals: replication, ACID, transactions, indexing, backup/restore
• Proficiency in test automation with Python / Go / Shell
• Experience with Linux, SQL, and performance testing tools (Sysbench is a must)
• Experience working in high‑traffic internet companies handling large‑scale databases

Preferred Profile

• Experience testing DBaaS / Cloud Database Platforms / Kubernetes Operators for Databases
• Experience with chaos engineering, Jepsen testing, or PXC / Galera clusters
• Former DBA transitioning into automation/testing role is highly preferred