O pozici
Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/
About the role
We are building a high-scale payment orchestration system that processes millions of financial transactions every month across multiple payment providers, regions, and products.
Our platform operates at the intersection of payments, billing, subscriptions, analytics, and internal CRM tooling, where data correctness, performance, and reliability are mission-critical. As our transaction volume and customer base continue to grow rapidly, our database layer has become one of the most important parts of the system.
We are looking for a strong Database Engineer who will own, scale, and evolve our data infrastructure, ensuring it remains fast, reliable, and ready for long-term growth.
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.
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.
Co budeš dělat
- 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
Han
- 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 strategies
Balance flexibility, correctness, and performance at scale
- Analytics & Logging
Work with event and log data pipelines, including Tinybird / ClickHouse -based analytics
Decide which data belongs in transactional databases vs analytical stores
Enable fast, real-time insights for product, finance, and operations teams
- Reliability & Operations
Ensure data integrity and consistency in financial workflows
Define and monitor database health metrics (latency, replication lag, storage, IOPS)
Plan and execute safe schema changes and migrations on large tables
Participate in incident analysis related to data performance or availability
Work in backups, replication, and disaster-recovery strategies
Koho hledáme
- Strong hands-on experience with PostgreSQL in production
- Experience managing large databases (hundreds of millions of rows or more)
- Solid understanding of:
Indexing strategies
Query planners and execution paths
Transactions, isolation levels, and locking
- Experience working with AWS-based infrastructure, ideally AWS Aurora
- Ability to independently investigate and resolve complex performance issues
Benefity
- Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0#heading=h.ndsdl4wapxtt
- Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!
- Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.
