Matheus Lima
Full-Stack Engineer · AI Engineer
Caruaru, PE — Brazil · Remote
I build and operate web products end to end.
I'm Matheus Lima, a Computer Science graduate from UFCG with 7+ years building web products — from senior frontend work on production platforms to founding and running my own SaaS.
Since 2024 I have built and operated Todas do ENEM, a subscription study platform for Brazil’s national college entrance exam, now used by 670 registered students. In parallel I deliver AI automations and agent integrations as an independent consultant.
I work end to end — product, interface, API, database, billing and deployment — and I have led a team and mentored junior developers.
Core skills
- Frontend
- React
- Next.js (App Router)
- TypeScript
- TailwindCSS
- shadcn/ui
- Styled Components
- SASS
- Zustand
- TanStack Query
- nuqs
- Zod
- Backend & Data
- Node.js
- Express
- Python
- Supabase
- PostgreSQL
- REST APIs
- Stripe
- Resend
- Java
- AI
- LLM API integration
- AI agents and chatbots
- Workflow automation
- Prompt engineering
- Product & Design
- UI/UX design
- Figma
- Design systems
- Landing pages
- Conversion-focused web
- Ways of working
- Agile (Scrum, Kanban)
- Technical leadership
- Mentoring
- Git
- Web3 fundamentals
Where I have worked
Seven years across product companies, an agency-style client practice and my own SaaS.
Founder & Full-Stack Engineer — Todas do ENEM
Jun 2024 — PresentOwn SaaS product · Remote
- Designed, built and operate a subscription study platform for students preparing for the ENEM, now used by 670 registered students: filterable question bank (subject, topic, year and TRI difficulty), full past exams, mock tests, essay correction and personalized study plans.
- Solo-owned the full product cycle — architecture, interface, database modelling, subscription billing, transactional email and deployment.
Stack: Next.js, TypeScript, TailwindCSS, shadcn/ui, Supabase, PostgreSQL, TanStack Query, Zustand, nuqs, Stripe, Resend
Full-Stack & AI Developer — Independent Consultant
Jun 2024 — PresentFreelance · Remote
- Built AI automations and agents for clients: LLM API integrations, chatbots and automated workflows that replaced manual, repetitive processes.
- Delivered conversion-focused landing pages and institutional websites, from copy structure to deployment.
- Handled UI/UX design and visual identity for the same projects, shipping design and code as a single package.
Frontend Engineer, Mid → Senior — Universidade Libertária
Dec 2021 — Jun 2024Full-time · Remote
- Led the development of an online course platform, the company's main product initiative.
- Rebuilt the homepage and redesigned the company's e-commerce store.
- Ran daily engineering stand-ups and trained and mentored frontend interns.
- Contributed to the Web3 team, including token creation.
Stack: Next.js, React (Vite), TypeScript, TailwindCSS, shadcn/ui, Styled Components, SASS, Axios · Kanban
Frontend Developer, Intern → Junior — Team Soft
Jul 2019 — Dec 2021Full-time
- Migrated modules of legacy websites to React, improving maintainability and delivery speed.
Stack: React, TypeScript, HTML, CSS, Axios · Scrum
Full-Stack Developer Intern — UFCG / PROPEX
Jan 2019 — Jan 2020University internship
- Built a full-stack web platform (frontend and backend) presenting data on the impact of university outreach projects across cities in the state.
Stack: Python, Selenium, JavaScript, HTML, CSS
Education
B.Sc. in Computer Science
Universidade Federal de Campina Grande (UFCG)
2018 — 2023
Certification
Full-Stack Development
Rocketseat
Languages
- English — Fluent
- Portuguese — Native
Things I have shipped
The product I run myself, plus client and side projects. Everything below is live.
Selected work
Todas do ENEM
2024 - PresentSubscription study platform for Brazil's national exam
My own SaaS, used by 670 registered students. It ships a question bank filterable by subject, topic, year and official TRI difficulty, full past exams, mock tests, AI essay correction and personalized study plans. I own the whole cycle: architecture, interface, database modelling, subscription billing, transactional email and deployment.
- Next.js
- TypeScript
- Supabase
- PostgreSQL
- Stripe
- Resend
- AI SDK
Also built
Obulo
2026PIX donation platform with multi-tenant treasury management
A donation platform built for charitable funds: each organization gets its own store with an onboarding and approval flow, admins invite treasurers with read-only access, and every PIX payment is processed through Mercado Pago and reconciled in a dashboard with anonymized donor data. The API is a Fastify gateway backed by Supabase.
- Next.js
- TypeScript
- Fastify
- Supabase
- Mercado Pago
- TanStack Table
PqEstudar
2026Curated tools and step-by-step guides for students
A curation platform for people studying on their own: tools, public exams and practical walkthroughs, with highlights, saved resources and a drag-and-drop editorial ordering system for the content board.
- Next.js
- TypeScript
- TailwindCSS
- shadcn/ui
- dnd-kit
Devocionario
2026Non-profit Catholic content platform
A non-profit project aimed at people beginning or deepening their Catholic faith. It gathers reliable content - prayers, music, articles and homilies - and promotes parishes and Catholic institutions.
- Next.js
- TypeScript
- TailwindCSS
- shadcn/ui
- TanStack Query
Hire me for your next build
I take projects end to end, so you deal with one person from the first call to the production deploy.
Full product builds
Next.js frontend, API, database, authentication, billing and deployment — the whole stack, delivered by one person.
AI features and agents
LLM integrations, chatbots and automated workflows that replace manual, repetitive processes inside an existing product.
Landing pages and websites
Conversion-focused pages and institutional sites, from copy structure and UI design through to production.
Questions you might have
Let's talk about your project
Tell me what you are building and I will get back to you with a plan, a timeline and a price.