Database Administrator
Liminal provides institutional digital-asset custody and wallet infrastructure. Its platform offers MPC and multisig wallets, custody, staking, compliance, transaction governance, automation, and APIs for banks, exchanges, fintechs, and other digital-asset businesses.
Funding history
About Liminal
Liminal is an institutional crypto custody and wallet infrastructure company. It provides Wallet-as-a-Service, managed and self-custody solutions, MPC and multisig wallet technology, cold custody, institutional staking, HSM Vault, transaction screening, compliance integrations, policy-based governance, automation, and REST APIs through Liminal Express. Its clients include exchanges, OTC and brokerage firms, Web3 platforms, hedge funds, family offices, market makers, private equity and venture capital firms, banks, and other enterprises building on digital assets.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You own the reliability, performance, security, and resilience of production databases. You administer PostgreSQL, MySQL, Aurora, RDS, and MongoDB; design backup and recovery strategies; optimize queries and schemas; support ORM and GraphQL data access; implement security controls; automate database operations; and support incident response and root-cause analysis.
Requirements
- 3-5 years of experience as a DBA, Database Engineer, or Database Administrator
- Hands-on experience with PostgreSQL and MySQL
- Experience with AWS Aurora and RDS
- Experience managing MongoDB in production
- Understanding of database architecture, replication, backups, recovery, and high availability
- Strong SQL skills and experience with query and performance optimization
- Experience with ORM frameworks and their impact on database performance
- Familiarity with GraphQL and modern application data-access patterns
- Understanding of AWS, Linux, networking, and cloud infrastructure
- Strong troubleshooting and problem-solving skills
- Experience with database monitoring and observability tools
- Experience with Terraform or Infrastructure as Code is an advantage
- Familiarity with Kubernetes and containerized workloads is an advantage
- Experience with database security, auditing, and compliance is an advantage
- Exposure to blockchain, Web3, fintech, or digital asset infrastructure is an advantage
Responsibilities
- Own the availability, performance, reliability, and security of production databases
- Administer and optimize PostgreSQL, MySQL, Aurora, RDS, and MongoDB environments
- Design and maintain backup, recovery, replication, and high-availability strategies
- Monitor database health, capacity, performance, and resource utilization
- Troubleshoot database performance and production issues
- Optimize queries, indexes, schemas, connections, and database configurations
- Work with Engineering teams on ORMs, database design, migrations, and query optimization
- Support applications using GraphQL and ensure efficient and secure data access patterns
- Implement and maintain database security controls
- Participate in disaster recovery planning, testing, and RTO/RPO initiatives
- Automate database operations, monitoring, provisioning, and routine maintenance
- Support incident response and root-cause analysis for database-related incidents