Database Administrator

Location: Remote
Reporting to Lead DevOps Engineer

The Purpose

- Administer and maintain production PostgreSQL databases on Amazon RDS and Aurora across development, staging and production environments.
- Monitor and tune database performance using Performance Insights, pg_stat_statements and EXPLAIN ANALYZE, covering indexing, vacuum and query optimisation.
- Plan and execute major-version upgrades and configuration changes with minimal downtime using blue/green deployments and logical replication.
- Own backup, restore and disaster recovery, including point-in-time recovery, cross-region snapshots and regular restore drills against agreed RTO and RPO targets.
- Review schema migrations from application teams (Knex, TypeORM) and enforce zero-downtime change patterns such as concurrent index builds and expand/contract.
- Manage database infrastructure as code using Terraform and Terragrunt, delivered through GitHub Actions pipelines.
- Implement database security controls including least-privilege roles, encryption, credential rotation via AWS Secrets Manager and audit logging with pgAudit.
- Manage connection pooling, high availability and failover using RDS Proxy or PgBouncer and Multi-AZ configurations.
- Support the data and BI teams with read replicas, replication and secure connectivity into Amazon Redshift and ELT tooling.
- Define database alerting and runbooks, and participate in an on-call rotation to maintain 24/7 reliability.
- Track and optimise database spend, including instance sizing, storage and IOPS selection and reserved capacity.
- Collaborate closely with backend (Node.js/NestJS), DevOps and data teams to deliver reliable, well-modelled data services.

What Makes You a Fit

- Deep experience administering PostgreSQL 14+ in production, including MVCC, vacuum tuning, WAL, replication and lock behaviour.
- Strong hands-on knowledge of Amazon RDS and Aurora PostgreSQL, including parameter groups, Performance Insights, Enhanced Monitoring and blue/green deployments.
- Proven backup and recovery experience, including real restore exercises and cross-region recovery.
- Proficiency in Terraform and Git-based workflows for managing database infrastructure.
- Solid scripting skills in Python, Bash or SQL for automation, health checks and reporting.
- Strong understanding of schema design, query optimisation and indexing strategies for high-transaction workloads.
- Working knowledge of Redis/ElastiCache and MongoDB administration.
- Understanding of database security and compliance requirements (PCI DSS, GDPR) for customer and payment data.
- Comfortable operating in a multi-account AWS environment with SSO and CI/CD-driven deployments.
- Ability to write clear runbooks, post-mortems and change plans that other engineers can follow.

Preferred/Bonus Qualifications

- Background in iGaming, Sportsbook or Fintech platforms.
- Experience with Amazon Redshift or another columnar data warehouse, and ELT tools such as Airbyte or AWS Glue.
- Experience with PostgreSQL extensions and tooling such as pgAudit, pg_partman and pg_repack.
- Experience with observability tooling (Grafana, OpenTelemetry, CloudWatch) in high-traffic environments.
- Familiarity with Node.js ORMs and migration tooling (Knex, TypeORM, Prisma).
- Knowledge of event-driven architectures (Kafka, RabbitMQ) and change data capture (Debezium).
- AWS Certified Database Specialty or Solutions Architect certification.

What's in it for you?

🚀 Serious Startup Energy

The chance to build and scale a B2B platform from the ground up within a fresh tech ecosystem launched in 2025.

🗺️ A truly global remote environment working with teammates from all over the world.
🏝️ Take up to 28 unavailable days a year plus public holidays.

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