Database Specialist

WealthNavi

SQL

Fintech

Backend

Postgres

About this role

WealthNavi, Japan's leading robo-advisor, is in its ninth year of operation and is raising the reliability and scalability of its whole platform. Rapid growth has exposed database problems, so the Database Specialist is expected to maintain the databases at an expert level, solve existing problems and find future ones early, improve or replace legacy environments, and design databases for upcoming new services.

Work includes long-term maintenance that considers the business plan, keeping performance steady for complex financial services, close communication with application engineers, optimising monitoring and alerts, and splitting existing schemas. The environment is AWS and GCP, with Aurora MySQL, DynamoDB and ElastiCache (Redis), Go, Python and PowerShell, and Terraform and CloudFormation.

Applicants need operation and maintenance experience with AWS Aurora and MySQL, proposal, design and build experience with relational databases, troubleshooting, performance analysis and tuning of them, and SQL review and query tuning. Experience with AWS Performance Insights, AWS Glue, schema splitting, non-relational data stores and non-AWS infrastructure is preferred.

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