Santiago Andres P.

Senior Software Backend Engineer

Senior Backend Engineer with 10+ years of experience designing, building, and operating large-scale distributed systems used by millions of people worldwide. I specialize in Java, Spring Boot, microservices, event-driven architecture, and system design. I’m particularly effective at turning ambiguous business requirements into reliable, production-ready services and improving the performance and scalability of existing systems. Selected accomplishments: * Improved critical API response times by up to 13x through Hibernate, PostgreSQL, and Elasticsearch optimizations. * Reduced a containerized Spring Boot application’s memory consumption by 40% through JVM and Tomcat tuning. * Designed and technically owned backend services involving asynchronous workflows, financial operations, advertising systems, Kafka, Kinesis, and third-party integrations. * Led architectural decisions and cross-functional delivery across engineering, product, data, and infrastructure teams. Core technologies include Java, Spring Boot, Spring Cloud, Spring Data, Spring Security, Hibernate, Node.js, PostgreSQL, MySQL, MongoDB, Elasticsearch, Kafka, RabbitMQ, ActiveMQ, Git, and Maven. I can help you design a new backend system, improve an existing architecture, resolve performance and scalability problems, or deliver a complex feature from initial design through production.