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Senior full-stack engineer with 7+ years of experience delivering production-grade platforms across e-commerce, education, and enterprise SaaS. Strong track record of technical leadership within cross-functional teams, architecting scalable systems from requirements to deployment. Experienced in building AI-powered features (GPT-4, RAG, embeddings), real-time systems, and multi-tenant architectures. Committed to long-term ownership, mentoring junior engineers, and driving technical excellence within established engineering organizations. Expert in NestJS, Next.js, TypeScript, and cloud services (Azure, AWS).…Senior full-stack engineer with 7+ years of experience delivering production-grade platforms across e-commerce, education, and enterprise SaaS. Strong track record of technical leadership within cross-functional teams, architecting scalable systems from requirements to deployment. Experienced in building AI-powered features (GPT-4, RAG, embeddings), real-time systems, and multi-tenant architectures. Committed to long-term ownership, mentoring junior engineers, and driving technical excellence within established engineering organizations. Expert in NestJS, Next.js, TypeScript, and cloud services (Azure, AWS).

Matheus Piffer

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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Senior full-stack engineer with 7+ years of experience delivering production-grade platforms across e-commerce, education, and enterprise SaaS. Strong track record of technical leadership within cross-functional teams, architecting scalable systems from requirements to deployment. Experienced in building AI-powered features (GPT-4, RAG, embeddings), real-time systems, and multi-tenant architectures. Committed to long-term ownership, mentoring junior engineers, and driving technical excellence within established engineering organizations. Expert in NestJS, Next.js, TypeScript, and cloud services (Azure, AWS).…Senior full-stack engineer with 7+ years of experience delivering production-grade platforms across e-commerce, education, and enterprise SaaS. Strong track record of technical leadership within cross-functional teams, architecting scalable systems from requirements to deployment. Experienced in building AI-powered features (GPT-4, RAG, embeddings), real-time systems, and multi-tenant architectures. Committed to long-term ownership, mentoring junior engineers, and driving technical excellence within established engineering organizations. Expert in NestJS, Next.js, TypeScript, and cloud services (Azure, AWS).

Available to hire

Senior full-stack engineer with 7+ years of experience delivering production-grade platforms across e-commerce, education, and enterprise SaaS. Strong track record of technical leadership within cross-functional teams, architecting scalable systems from requirements to deployment. Experienced in building AI-powered features (GPT-4, RAG, embeddings), real-time systems, and multi-tenant architectures. Committed to long-term ownership, mentoring junior engineers, and driving technical excellence within established engineering organizations. Expert in NestJS, Next.js, TypeScript, and cloud services (Azure, AWS).

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Portuguese

Fluent

English

Fluent

Spanish; Castilian

Intermediate

Work Experience

Senior Full-Stack Engineer at Talentus

June 1, 2025 - Present

Lead multi-tenant higher-education information portal modernization; designed modular architecture with 31 feature modules; built server components using Next.js 15, App Router, React 19; implemented authentication, multi-tenancy, i18n; achieved WCAG 2.2 AA compliance; built language support for EN/PT/ES/FR; implemented automated cross-browser E2E tests.

Lead Software Engineer at Intra commerce

January 1, 2024 - Present

Full technical ownership of a multi-tenant SaaS platform for field sales and promoter management; backend architecture using NestJS; polyglot persistence (PostgreSQL, MongoDB, Redis); 50+ models via Prisma; implemented multi-tenant architecture; AI & WhatsApp integration; Next.js 15 frontend; i18n tenant isolation; built Admin panel; BFF services; unit/integration/E2E tests with Jest; collaboration with product and stakeholders.

Lead Software Engineer at PremierSoft

November 1, 2023 - June 1, 2025

High-traffic e-commerce multi-tenant SaaS platform; backend services with NestJS and asynchronous processing via BullMQ; migration of critical integrations from Magento to VTEX; internal admin panel with Next.js; asset management via Azure Blob Storage; Backend-for-Frontend services; database ops including schema design, migrations; Jest unit/integration/E2E tests; collaboration with product/business stakeholders; AI WhatsApp integration.

Internal Asset Management System Lead at UDT

November 1, 2022 - November 1, 2023

Built internal asset management dashboard across organization; Angular + Material with role-based access control; Azure AD integration and Chrome Console for automated asset tracking; timer-triggered Azure Functions for scheduled data sync; technologies: Angular, Node.js, TypeScript, TypeORM, Azure Functions, PostgreSQL.

Full-Stack Engineer at Hallo

January 1, 2019 - January 1, 2022

Assemble ias Online: secure real-time voting platform; real-time chat and voting using Socket.IO and Redis pub/sub; React front-ends for users and admins; deployed on AWS ECS with Lambda and SQS for automation.

Planning Analyst at Seara Alimentos

January 1, 2018 - January 1, 2019

Planning analysis and production control responsibilities within the food manufacturing company.

Production Control Analyst at Seara Alimentos

January 1, 2013 - January 1, 2015

Production control duties focusing on manufacturing processes and efficiency improvements.

Client Support Analyst at Seara Alimentos

January 1, 2010 - January 1, 2012

Client support and service delivery, addressing inquiries and issues.