Joaquim Medeiros

Led full-stack development and technical direction for a US-based telehealth platform. Rebuilt checkout/payments, implemented a server-side Meta CAPI pipeline, migrated analytics to PostHog, and hardened security across authentication, rate limiting, and patient data access.

Built an end-to-end AI platform focused on developer tooling, real-time collaboration, and AI-assisted workflows. Designed MCP-based integrations, RAG pipelines, and low-latency AI workflows for ingestion, embeddings, streaming responses, and tool orchestration.

Led a rewrite of core application features using modern frontend and backend technologies to improve stability and scalability. Owned APIs, services, and frontend integration, and implemented background processing, caching strategies, and observability for a distributed system.

Contributed to building and scaling a data-heavy analytics platform for enterprise use cases. Led frontend modernization and improved testing practices, while optimizing database performance and supporting large-scale data pipelines and observability.

Worked with global teams building e-learning and e-commerce platforms serving international users. Helped drive architectural decisions for backend integrations and frontend scalability, and mentored engineers through code reviews and sprint planning.

Built and maintained an ERP/CRM platform for regulated industries across frontend, backend, and mobile. Delivered system upgrades and performance optimization, developed Python/Flask backend APIs, implemented end-to-end testing, and contributed to containerization and mobile development.

Completed a Bacharelado em Direito (law degree) at PUCPR in Curitiba.

Studied Processamento de Dados (data processing) at Faculdade OPET in Curitiba.