Guilherme – React, Python, AWS

An AI-powered B2B chatbot platform that automates customer service and centralizes customer operations for business owners. The platform combines intelligent chatbots, model orchestration, document ingestion, CRM-linked analytics, observability, and multi-channel integrations to reduce response time and operational costs while surfacing actionable AI insights.

• Designed and built user interfaces with a focus on optimal user experience;
• Implemented message orchestration, including queues, retry logic, and persistent caching;
• Added native integrations with multiple external channels;
• Built the intelligence layer for bots, including model orchestration, document ingestion, and structured prompts;
• Architected and implemented secure APIs and the database layer;
• Participated in key product decisions, balancing product requirements and usability, and supported targeted marketing campaigns;
• Assisted with deploying and setting up project infrastructure.

An AI healthcare company that built B2B solutions for health clinics, hospitals, and beauty clinics in the Middle East and Brazil. It offers an arsenal of internal tools to automate lead generation, customer service, content creation, marketing, etc., for healthcare businesses.

• Onboarded new clients into the product ecosystem;
• Built most of the internal toolbox end-to-end;
• Collaborated closely with the CEO, CTO, and PM on product strategy;
• Iterated product improvements from usage data and client feedback;
• Participated in client and investor meetings;
• Welcomed new team members and participated in in-person business events and meetings.

A retrieval-augmented generation (RAG) chatbot that ingests layered research and market-data sources to answer user questions in natural language via WhatsApp. The service delivered fee-based, authenticated access to survey results, sponsored papers, and proprietary datasets, enabling clients to query research insights on demand and monetize access to market intelligence.

• Collaborated with the CTO and COO to plan the implementation;
• Built n8n flows to handle inbound and outbound WhatsApp requests;
• Built the RAG with orchestration between services to operate using different ingestion sources;
• Integrated with internal CRM to create a secure authentication flow;
• Set up infrastructure using AWS services (EC2, S3, SES).

A travel agency and air ticket marketplace from the UAE that operates mainly on the Middle East, France and Japan. The website uses web crawling flows and a robust REST API to scrape for discounted tickets and ensure the best prices in their preferred routes.

• Served directly with the founders as the main full-stack developer for the project;
• Transitioned to a product-focused engineer working with key stakeholders;
• Debugged and fixed broken production APIs;
• Built internal tools, prototypes, and infrastructure components;
• Migrated database and data from Supabase to PostgreSQL.