Jean Pierre Ferreira da Silva

Developed a Home Assistant–integrated SaaS with a NestJS API, Next.js 15 admin, and React Native/Expo mobile in a monorepo. Built a full auth stack (JWT refresh rotation and biometrics/TOTP-MFA), integrated Vindi recurring payments, and implemented real-time WebSocket features plus white-label WebView JS injection without rebuilds.

Built end-to-end web platforms for AI-powered construction analysis and route optimization using a TypeScript/Node.js backend and React dashboard. Implemented a route optimization service (TSP + K-Means) handling 284 contracts/month and 1,943 tasks/month, improving productivity by 18% and saving ~150h/month while delivering LLM+computer-vision site analysis with Langfuse observability.

Built a fintech accounts receivable SaaS with NestJS, Prisma, MySQL, and AWS to automate 800+ recurring contracts with 4-index adjustment, reducing manual work by 90%. Developed a bulk operations engine supporting 500 contracts/run with full audit trail and 10k+ record imports via CSV/Excel through ERP integrations (Omie, Conta Azul).

Migrated 3 legacy Angular 8 applications into a React microfrontend architecture, reducing build time from 12 minutes to 4 minutes and enabling independent deploys. Integrated 8 payment providers processing R$ 250k/month, built a drag-and-drop page editor with a plugin system, and automated iFood product sync (~3,000 items/month), supporting 1,200+ active clients and 1M+ registered users while men

Delivered a healthcare platform with real-time transcription, chat, and video for medical consultations. Implemented multi-party real-time transcription via WebSocket (~600/month, 5,400 total) and integrated Google Transcription API for automatic clinical data extraction, alongside real-time chat and voice/video call features.

Co-founded and led delivery of ~20 full stack web/mobile projects using JavaScript/PHP across multiple industries, averaging R$ 50k/month revenue. Published 3 open source PHP/Laravel packages with 80k+ combined Packagist downloads and led a team of 6 through mentorship, code reviews, and agile delivery.

Developed e-commerce solutions for a company with R$ 40M+ annual revenue, including Moip payment integration and recurring subscription management. Built and maintained web services integrating with major retailers (Ricardo Eletro, Muffato) to automate order processing.

Built the IntergrALL contact-center platform in PHP/SQL/JavaScript, supporting ~1,500 simultaneous channels during AACD Teleton. Delivered scalable platform functionality to handle high-concurrency event workloads.

Activities and societies: 24 lessons/week (full-time ESL).

Completed a full-time English as a Second Language (ESL) program at EC Toronto (24 lessons/week) from Feb 2026 to Jul 2026.

Studied Systems Analyst in Information Technology at Faculdade Impacta from 2012 to 2014.