Database Administrator — SaaS Infrastructure (SG)

Longbridge Singapore; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Longbridge Singapore is seeking a skilled Database Administrator to own the operations and build-out of the data layer for our multi-region SaaS clusters in Singapore. You will manage PostgreSQL/MySQL databases across US/SG/JP, ensure high availability, backups, and incident response, and work with Terraform and other tooling to automate tenant onboarding and DR drills.

The role emphasizes performance tuning, capacity planning, and collaboration with SRE and engineering; Mandarin is a plus,

Qualifications

• 3+ years of production DBA experience with PostgreSQL and/or MySQL.
• Experience with HA and backup/recovery solutions and failover drills.
• Strong performance tuning and query optimization skills.
• Experience with AWS RDS/Aurora or equivalent cloud databases.
• Proficient in English; Mandarin is a plus.

Responsibilities

• Operate databases of multi-region SaaS clusters including deployment, upgrades, backups, monitoring and incidents.
• Design and deliver multi-tenant SaaS data solutions with isolation and onboarding.
• Own multi-AZ high availability and DR drills with defined RPO/RTO targets.
• Run capacity planning and performance tuning, including slow-query governance and indexing.
• Review schema designs and gate production changes with engineering; participate in on-call with SRE.

Skills

Production DBA experience

English communication

Tools

PostgreSQL

MySQL

Redis

ClickHouse

Terraform

Bytebase

SRE tooling

Job description

Job Description

Our databases power order management, market data, clearing and settlement, risk controls, and customer asset systems — with high demands on availability, data consistency, and multi-jurisdiction compliance.We are looking for a DBA to join our Singapore team and take ownership of the operations and build-out of the data layer of our multi-region SaaS clusters, with plenty of room to grow into financial-grade data architecture and multi-market compliance practices.

Job requirements

Our databases power order management, market data, clearing and settlement, risk controls, and customer asset systems — with high demands on availability, data consistency, and multi-jurisdiction compliance.We are looking for a DBA to join our Singapore team and take ownership of the operations and build-out of the data layer of our multi-region SaaS clusters, with plenty of room to grow into financial-grade data architecture and multi-market compliance practices.

• Operate the databases of our multi-region (US/SG/JP) SaaS clusters day to day: deployment, upgrades, backup and recovery, monitoring and alerting, and incident handling — mainly PostgreSQL, MySQL, Redis, plus analytics engines such as ClickHouse.
• Help design and deliver our multi-tenant SaaS data solutions: tenant isolation (dedicated instance / database / schema), automated tenant onboarding (provisioning, password rotation), and per-tenant backup and recovery.
• Own multi-AZ high availability and DR drills within each region, meeting RPO/RTO targets for core systems.
• Run capacity planning and performance tuning: slow-query governance, indexing and execution plans, connection pooling; participate in P0/P1 incident response and post-mortems.
• Use and improve our database platform tooling (Terraform, Bytebase, self-service query tools) to make launching a new market or onboarding a new tenant increasingly automated.
• Review schema designs and SQL with engineering teams, gate production changes, and share on-call duties with SRE.

Job responsibilities

• 3+ years of production DBA experience with PostgreSQL and/or MySQL, including independently handling live incidents.
• Hands-on experience with mainstream HA and backup/recovery solutions (e.g., replication, Patroni, MHA, or Redis Sentinel), including real failover or recovery drills.
• Solid performance tuning skills: slow-query analysis, index design, reading execution plans, diagnosing locking and connection-pool issues.
• Working experience with AWS RDS/Aurora (or equivalent cloud databases), including Multi-AZ deployment and cloud backup/recovery patterns.
• Working English: able to read and write documentation and join meetings in English; Mandarin is a plus.

Nice to Have

• Financial industry experience — database operations at a broker, exchange, payments, or banking system; familiarity with order, market-data, or settlement data models is a bonus.
• SaaS / multi-tenancy — involvement in designing or operating multi-tenant data platforms.
• Larger-scale experience — systems with 100k+ QPS or TB+ data volumes.
• Database internals — deep understanding of MVCC, transaction isolation, and replication; able to analyze issues at the protocol or source-code level.
• Engineering skills — Python/Go/Shell scripting for ops tooling; Kubernetes experience.
• Time-series / analytics — production experience with ClickHouse or TimescaleDB.