Senior DBA
Company: Momcozy (ROOT Global)
Employment Entity: Local subsidiary (Singapore / United States)
Salary Range: [To be confirmed — will be added per local pay transparency laws]
Visa Sponsorship: This role does not provide visa sponsorship. Candidates must be legally authorized to work in the country of employment.
About the role
We are looking for a highly experienced Senior DBA to take ownership of database reliability, performance, availability, and operational excellence across our global business. This role exists to ensure our production databases — supporting e-commerce, IoT, mobile, and internal systems — are highly available, performant, secure, and well-governed across AWS and multiple geographic regions. You will work closely with SRE, DevOps, application development, data engineering, and security teams to build standardized, secure, and highly reliable database infrastructure.
Key responsibilities
Take ownership of production and non-production database environments across multiple global regions
Design, deploy, operate, and maintain MySQL, PostgreSQL, Redis, MongoDB, and other database technologies as required
Manage AWS database services including Amazon RDS, Aurora, ElastiCache, DynamoDB, and related services
Establish standardized database architecture, configuration, and operational practices; define database lifecycle management, upgrade, patching, and capacity planning strategies
Monitor database health, availability, performance, and capacity; perform SQL optimization, index optimization, execution plan analysis, and database parameter tuning
Lead database incident response and root cause analysis; identify potential database risks proactively and implement preventive measures; establish and improve database SLO/SLA standards
Design and implement database high-availability and disaster-recovery architectures; manage replication, failover, backup, and recovery mechanisms; conduct regular backup validation and disaster recovery drills
Automate database provisioning, configuration, backup, monitoring, and maintenance using Python, Bash, or similar scripting languages; implement infrastructure as code using Terraform
Establish database access control, authentication, encryption, and auditing standards; implement least-privilege access policies; support vulnerability remediation and security hardening
Provide technical guidance to DBA and SRE engineers; participate in architecture reviews and technology selection; lead major database migration, upgrade, and optimization projects
About you
Bachelor's degree or above in Computer Science, Information Technology, or a related field, or equivalent industry experience
7+ years of professional database administration or database engineering experience
Strong production experience with MySQL and/or PostgreSQL
Deep understanding of database architecture, replication, high availability, backup/recovery, and performance tuning
Extensive experience with AWS database services, especially RDS, Aurora, and ElastiCache
Strong Linux administration and troubleshooting skills
Excellent SQL troubleshooting and performance optimization capability
Strong scripting and automation skills with Python, Bash, or similar technologies
Experience with Terraform, Ansible, or infrastructure as code
Solid understanding of networking, DNS, TCP/IP, and cloud infrastructure
Benefits
Opportunity to own global database infrastructure for a fast-growing business
Exposure to large-scale e-commerce and IoT database environments
Participation in cloud migration and global architecture initiatives
Competitive compensation and benefits package
Flexible working policy