Eduardo Lemos

About Me

Hi, I'm Eduardo

Full-Stack AI Developer with 10 years shipping production web apps and
2 years designing and deploying AI systems — RAG (chunking, semantic retrieval, grounding, citations), multi-model LLMs, prompt optimization, and tool-calling agents — with modern frontends. A problem solver who owns the end-to-end path from prototype to production APIs, evaluation, and monitoring on AWS (including Amazon Bedrock).

On the AI side: Python (FastAPI, LangGraph/LangChain), pgvector RAG, MCP, and LangSmith for tracing and answer-quality eval. On the web side: React, TypeScript, JavaScript, Node.js, and PostgreSQL — with a deep foundation in PHP and WordPress.

I studied Psychology at the University of Western Ontario. When I'm not working, I'm a dad to my kids, and I'm happiest when surrounded by my family and friends; playing video games, talking about sports, or just trying to break up the occasional sibling rivalry. If you want to meet me, send me an email.

Skills

Python LangGraph / LangChain RAG / pgvector Multi-model LLM React JavaScript PostgreSQL FastAPI AWS PHP OpenAI Anthropic Gemini AWS Bedrock MCP LangSmith TypeScript Tool-calling agents LlamaIndex Prompt engineering AI evaluation MySQL Neo4j Valkey / Redis Node.js REST APIs WebSockets Docker CI/CD Observability Cloud Platforms Nginx / Apache Linux Git / GitHub WordPress Drupal Microsoft Azure

Latest Work

Master Ball — competitive companion homepage
Master Ball — Professor (AI assistant)
Master Ball — team builder
2025 – Present · Personal project

Master Ball

Production competitive Pokémon companion with Professor (AI assistant): LangGraph tool-calling over Pokédex, damage calc, and meta data; pgvector RAG with grounded citations; streaming chat; MCP server; FastAPI + React/TypeScript; multi-model LLMs (including Amazon Bedrock); LangSmith tracing and quality eval — deployed on AWS with Docker.

LangGraph RAG / pgvector MCP Multi-model LLM AWS Bedrock FastAPI LangSmith React PostgreSQL Docker AWS

Experience

Selected work — production platforms and full-stack delivery, alongside the AI systems work above.

Lifemark website

Lifemark

Professional

Maintained and improved a large Canadian healthcare platform serving thousands of monthly users. Developed front-end features and improvements with Drupal, HTML, and JavaScript/TypeScript; managed backend integrations, deployments, and production fixes within Microsoft Azure.

pt Health website

pt Health

Professional

Developed and maintained WordPress-based healthcare websites supporting clinic services across Canada. Implemented clinic search, booking functionality, and custom features with PHP and JavaScript; built backend integrations with Salesforce for clinic operations and data workflows.

Elerea — Web Design & Digital Marketing

Elerea

Professional

Designed and developed the Elerea website end-to-end on Webflow — booking forms, filters, security updates, and a clean, modern UI with a focus on usability and accessibility. Delivered as a full custom build.

Right Time

Right Time

Contractor

Delivered front-end development, search, geolocation, filters, tracking, and MySQL database migration for this WordPress site.

Contact

Let's talk 💬

I'm open to new opportunities and always happy to connect. Whether you have a project in mind, a question, or just want to say hi — feel free to reach out. I'll get back to you!

Send me an email