SENIOR FRONTEND & AI DRIVEN ENGINEER

Guilherme

Developing aesthetic, dynamic production-grade web systems. Architect of high-performance tools powered by LLMs.

May 2022 - Present

CI&T

Senior Frontend Engineer

React 19Next.js 15TypeScriptCursorClaude CodeMCPJestRTL

Spearheaded frontend architecture and AI-driven engineering workflows using React 19 and Next.js 15. Defined strategic AI governance guidelines, scaled autonomous agent orchestration (Cursor, Claude Code), and led team upskilling initiatives.

Mar 2020 - Apr 2022

JUST DIGITAL

Mid Level Frontend Drupal Developer

DrupalJavaScriptHTML5CSS3SCSSAcquia Site Studio

Developed and enhanced web platforms for global brands like Danone, Ambev, and Claro. Engineered core design systems (Gaudi, Davinci) and built accessible developer portal integrations.

Jun 2019 - Mar 2020

Prefeitura de São Paulo

Frontend Developer

DrupalHTMLCSSTwigPHP

Maintained and modernized municipal web portals using Drupal CMS and HTML/CSS/Twig.

Aug 2018 - May 2019

Prefeitura de São Paulo

Estagiário

DrupalHTMLCSS

Assisted in frontend updates and basic layouts maintenance.

PROFESSIONAL CREDENTIALS

ANTHROPIC • VALID THROUGH 2026

Claude Certified Architect - Foundations

Validates expert proficiency in designing and deploying production-grade AI applications using Anthropic's Claude ecosystem. Confirms technical mastery in agentic architecture and multi-agent orchestration (Claude Agent SDK), tool design and custom Model Context Protocol (MCP) server integration, developer velocity workflows (Claude Code), robust prompt engineering for structured outputs, and enterprise-grade context window management and system reliability.

Credential ID: p5yfvbuxg5qi
VERIFY CREDENTIAL ↗

SELECTED PRODUCTION WORKS

WRITINGS & ARTICLES