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Database Administrator (DBA)

3 weeks, 1 day ago
Azerbaijan, Kazakhstan, Poland, Ukraine
Full-time
Mid Level
Database Administrator
Database Administration
AWS Bash CI/CD ClickHouse Docker Go Grafana Linux MariaDB MongoDB Prometheus Python Secrets Management Terraform
Apply Now
12Go

12Go

12Go Asia is a Singaporean startup company that serves as the leading multimodal OTA in Asia. They offer online booking services for trains, flights, buses, transfers, ferries, hotels, day trips, insurances, car rentals, and other travel inventory acro...

Consumer Services
51-250
Founded 2013
View All Jobs 3

Description

  • Own and operate multi-engine database infrastructure across self-hosted and AWS RDS environments as the primary database expert.
  • Design, execute and validate replication and high-availability strategies, including GTID migrations and replica lag monitoring.
  • Define, test and maintain failover and switchover runbooks and participate in on-call rotation for database incidents.
  • Continuously audit slow query logs, tune engine parameters, and optimize queries and indexes to improve performance and reliability.
  • Set up and maintain observability for databases (PMM, Prometheus + Grafana or equivalent) and own DB metrics monitoring.
  • Define and enforce safe schema migration procedures (online DDL, pt-online-schema-change, gh-ost), integrate migrations into CI/CD, and maintain migration history and rollback procedures.
  • Implement, verify, and document backup and disaster recovery strategies (logical + physical backups, tested restores, point-in-time recovery).
  • Manage database security and compliance: users, roles, least-privilege access, credential rotation, secrets management, and data encryption (at-rest and in-transit).
  • Write and maintain runbooks for failover, restore, migration, and scaling; conduct internal knowledge transfer sessions with DevOps and engineering teams.

Requirements

  • 3+ years working with MariaDB covering replication, GTID, binlog, InnoDB tuning, Mariabackup, and Percona Toolkit.
  • Proven experience performing position → GTID replication migrations in production.
  • Practical knowledge of AWS RDS differences vs self-hosted deployments, including parameter groups and snapshots.
  • Ability to read EXPLAIN, identify bad indexes, and independently diagnose and fix slow queries.
  • Experience designing and testing backup & restore procedures and with tools like xtrabackup / mariabackup.
  • Hands-on experience with schema migration tools (pt-online-schema-change or gh-ost) and understanding of locking implications.
  • Experience setting up monitoring for databases (Prometheus + Grafana or PMM) and owning DB observability.
  • Comfortable with Linux and shell (bash), systemd, and log analysis.
  • Experience running databases in Docker for dev/staging and understanding of volume management.
  • Willingness to participate in on-call rotation and work in a hands-on individual contributor role (not a management position).
  • Nice to have: ClickHouse (MergeTree, partitions, materialized views), MongoDB replica sets, Terraform/IaC for RDS, and Python or Go for automation and custom exporters.

Benefits

  • Full-time remote work (5 days/week, 8 hours per day).
  • Development opportunities with budget for self-paced learning, global training workshops, online English classes and e-learning platforms.
  • Internal growth and mobility opportunities within the company.
  • Competitive annual leave, sick leave, and public holidays.
  • Annual company offsite in Thailand.
  • Work on a product used by millions of travelers daily, with high-impact engineering work.

Interested in this position?

Apply directly on the company website

Apply Now

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