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Pablo Palou

@pablopalou

Message

I build scalable backend and search systems for high-volume products.

Uruguay

Message

At Mercado Libre, I build search and data systems handling 1B requests per day. I've improved routing across 40 search nodes, built a NoSQL-to-BigQuery streaming pipeline, and led the backend design for a new seller-facing search experience.

Previously, I improved healthcare database performance at Felix through Light-it, cutting query latency 15x with Redis and optimization. I work across Java, distributed systems, event-driven architecture, cloud data platforms, and observability, and I'm a Codeforces Expert ranked first in Uruguay since 2023.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Mercado Libre

May 2024 - Present (2 years 4 months)

Improved query routing balance and horizontal scalability across 40 document-search nodes by implementing consistent hashing. Built a high-throughput streaming pipeline replicating production NoSQL data into BigQuery for analytics on a system handling 1B requests/day.

Java Distributed Systems Search Infrastructure Consistent Hashing BigQuery NoSQL Event Driven Architecture Observability API Design Microservices

Software Engineer

Light-it Software

Mar 2022 - Mar 2024 (2 years)

Configured an AWS proxy service to control network access and route requests through designated IPs, reducing latency by 20%. Implemented an integration between Redox and OpenMRS electronic health record systems.

AWS Proxy Configuration Management Network Access Control Redox OpenMRS EHR Integration Interoperability Java PHP

Software Engineer (Through Light-it)

Felix

Aug 2022 - Sep 2023 (1 year 1 month)

Redesigned database schemas and query patterns, improving performance and query efficiency by 5x. Reduced query latency by 15x through Redis caching and query optimization.