Ronny Manuel Medina Malave

Technical Lead at Arara. Upgraded a basic chat feature by building a LangGraph-powered backend that generates Generative UI, integrated into a Next.js frontend for real-time AI-driven interface rendering. Engineered a secure container strategy, achieving a 60% reduction in Docker image size and implementing container hardening across all programming languages. Implemented cloud cost optimization by architecting a Redis caching layer to reduce BigQuery costs and latency. Standardized internal development processes with unified workflows and documentation. Overhauled authentication/authorization by migrating from Django to Auth0 and Fine-Grained Authorization (FGA) for a decentralized, secure infrastructure. Enabled high-efficiency data retrieval with BigQuery streaming queries to prevent memory exhaustion on large datasets. Modernized engineering operations by optimizing GitLab CI/CD pipelines and adding automated vulnerability scanning with Trivy and dedicated testing stages.

Architected and implemented real-time data streaming with Kafka, and orchestrated a large-scale Redis→BigQuery storage migration with secure data isolation. Built a high-performance Publish-Subscribe messaging system coordinating real-time data flows between Kafka and Redis. Migrated mission-critical scheduled tasks from Python to Golang for improved speed and resource efficiency. Strengthened credential security by SSH-based management for private repositories within Docker. Contributed to a React Native mobile app, collaborating with the ML team on indoor navigation for commercial centers.

Standardized unit testing with Jest and Pytest. Improved site loading speed by 20% by deferring unnecessary React components. Mentored juniors on unit testing and code quality.