About us:
About the role:
We are looking for a strong Database Engineerwho will own, scale, and evolve our data infrastructure, ensuring it remains fast, reliable, and ready for long-term growth.

As a Database Engineer at RubyLabs, you will be responsible for designing, operating, and optimizing databases in a high-volume payments environment. This role goes far beyond basic CRUD operations — you will work with large datasets, complex queries, performance bottlenecks, migrations on massive tables, and analytics pipelines.

You will collaborate closely with backend engineers and product teams to ensure our data layer supports both transactional workloads and analytical use cases, including internal CRM search and observability.

You will be joining a high-talent, fully remote engineering organization with strong backend, infrastructure, and product teams. We value ownership, technical excellence, and pragmatic decision-making. Engineers at RubyLabs work on real scale, real money, and real impact.

Key Responsibilities:
Database Ownership & Scalability:




- Own and operate AWS Aurora (PostgreSQL) in a high-load production environment
- Design and evolve schemas for large transactional domains (payments, customers, subscriptions, events)
- Implement and maintain:
- Table partitioning strategies (time-based, tenant-based, hybrid)
- Advanced indexing (B-Tree, GIN, partial indexes)
- Query optimization and execution-plan tuning
- Handle databases with millions of new records per month while maintaining predictable performance

Performance Optimization:
- Analyze and optimize slow queries and production metrics
- Identify and resolve:
- Lock contention
- Vacuum / autovacuum issues
- Connection pool saturation
- Long-running or inefficient queries
- Proactively prevent performance regressions as data volume grows

Search & Internal Tools:
- Design high-performance search solutions for large operational datasets used in internal CRM tools
- Implement efficient search strategi

📌 Senior Database Engineer (Buenos Aires)
🏢 Ruby Labs
📍 Buenos Aires