Senior Database Reliability Engineer, Mercury

• Have 5 years of experience administering PostgreSQL in medium-to-large organizations
• Have experience with Amazon RDS, Google Cloud SQL, Azure Database, or similar managed offerings
• Have 1 year of experience using Infrastructure-as-Code tooling: Terraform is preferred
• Have deep query optimization experience with PostgreSQL
• Know how to combine PostgreSQL with other data systems for cost efficiency, scalability, and reliability reasons
• Be comfortable with a scripting language such as Python
• Be open to learning Haskell/Persistent/Esqueleto to support product engineers
• Be willing to learn and solve new problems

Desirable

• You will join Mercury as its first DBRE. We have managed to draw on expertise and curiosity across the organization to get us to this point, but see value in having a full-time owner
• You bring a sense of direction and organization that helps us unlock the next chapter of Mercury’s growth
• PostgreSQL is wonderfully general, but you know its limits and can implement architectures that make sense for the features we are developing
• You will be part of the Stability team: a small group that holds SRE values and seeks to do high-leverage reliability and performance work that benefits Mercury engineering
• Guide product engineers towards structures and practices that maximize performance, efficiency, and reliability
• Pair with product engineers on query performance improvements
• Automate processes and distribute knowledge so that you are not a bottleneck
• Drive database upgrades and migrations
• Identify long-term architecture goals and plan, coordinate, and execute incremental steps to achieve those
• Collect and present database metrics to inform scaling and architecture discussions
• Educate product engineers who are generally excited about PostgreSQL, data consistency, correctness, immutability, and performance
• Make code and infrastructure changes so that our applications better interact with the database