Senior Database Administrator
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Job Description
Senior Database Administrator operating CockroachDB and PostgreSQL for Hard Rock Digital’s online sportsbook, casino, and social gaming platform. Improving reliability, performance, observability, and incident response.
Responsibilities:
- Operate and evolve multi-region CockroachDB clusters and PostgreSQL instances across production, staging, and development
- Investigate contention, serialization retries, range hotspots, leaseholder placement, monotonic-key write pressure, and cross-region latency
- Analyze slow queries, execution plans, optimizer behavior, schemas, and application call paths
- Detect plan regressions and establish safer rollout patterns
- Assess schema-change and backfill risks, including lock behavior, retry pressure, capacity impact, and rollback paths
- Plan capacity, scaling events, and version upgrades
- Build database observability with Prometheus, Grafana, Mimir, Loki, and Snowflake
- Create dashboards, alerts, and SLO tracking tied to database and application behavior
- Join the data-layer on-call rota, lead incident analysis, and drive blameless postmortems
- Build Go and Python tools for incident analysis, explain-plan analysis, migration checks, capacity modeling, and runbook generation
- Automate provisioning, configuration, backup, and recovery with Terraform and infrastructure-as-code tools
- Collaborate with platform engineering on CI/CD, deployment safety, and change management
- Use Claude Code, Codex, and similar AI harnesses to investigate incidents, generate probes, draft runbooks, and write tooling
- Evaluate AI-assisted observability and anomaly detection
- Implement and audit access controls, authentication, authorization, and encryption
- Support data-protection, audit-logging, and retention requirements
- Build database documentation, standards, and reusable patterns
- Mentor engineers on database fundamentals, distributed-systems behavior, and operational discipline
- Read CockroachDB and PostgreSQL internals and share findings with the team
Requirements:
- 5+ years operating production relational databases as a DBA, Database Reliability Engineer, or Data Platform Engineer
- Deep production experience with PostgreSQL, CockroachDB, or another relational database management system
- Fluency in tradeoffs behind isolation, consensus, locality, and query planning
- Understanding of MVCC, the Volcano iterator execution model, and cost-based optimizer frameworks such as Cascades
- Knowledge of indexing strategy and execution plan analysis
- Working knowledge of distributed-systems fundamentals, including Raft, Paxos, distributed transactions, consistency models, and failure modes
- Ability to write tools and automation in Python or Go
- Ability to debug and suggest fixes to line-of-business code in Java or a similar language
- Experience with infrastructure-as-code and monitoring/observability stacks such as Grafana or Datadog
- UNIX/Linux administration with shell scripting
- Comfort on a cloud platform; AWS preferred, Azure or GCP welcome
- Willingness to join an on-call rota
- Clear technical writing and speech
- Ability to work across teams
Benefits:
- Competitive pay and benefits
- Flexible vacation allowance
- A hybrid / remote working environment
- Startup culture backed by a secure, global brand
- Team gatherings around the US and Europe
- Employer-sponsored training and conference attendance
- Opportunity to work in an AI-first environment with access to the tools you need to excel at your job
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