Senior Database Engineer

Responsibilities

• Improve database performance
• Investigate our current database setup to find performance bottlenecks and reliability risks, using instrumentation, code review, and staging tests where appropriate.
• Find and improve slow-running queries, identify missing or inefficient indexes, and evaluate database settings against what the application actually needs.
• Diagnose distributed-database issues such as transaction contention and retries, hot ranges, and inefficient access patterns, and partner with application engineers to fix them at the source.
• Establish performance baselines so meaningful changes in workload behavior are visible early.
• Be the database subject-matter expert
• Help engineering teams understand the risks and trade-offs of significant changes before they reach production, including schema migrations, new access patterns, and configuration changes.
• Participate in design reviews for systems that place significant demands on the database, and give clear guidance on schema design, primary key selection, indexing, and transaction boundaries.
• Contribute database expertise to incident response and root-cause analysis, and turn what we learn into lasting fixes.
• Own database practices

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