Available for remote roles — US/EU

Hi, I'm Matheus. 👋

I build scalable web products.

Senior Full-Stack Engineer specialising in TypeScript, Next.js, Nest.js & Node.js.

6+ years shipping production web apps — from a B2B marketplace processing 4,000+ vehicle listings to SAP-integrated ERP tools and AI-adjacent Next.js products. Open to remote roles with international teams across US/EU time zones.

Get in touchDownload CVGitHubLinkedIn

// about

Who I am

I'm Matheus — a Senior Full-Stack Engineer based in Curitiba, Brazil, with 6+ years architecting and shipping web products in the JavaScript/TypeScript ecosystem. I use Nest.js and Node.js to build secure, scalable backends, and Next.js and React.js to build websites that are user-friendly, SEO-optimised, performant, and customisable. At G2i I delivered two successful Next.js + AI products in a short, fast-paced engagement. At Grupo LW I architected and launched lwauto.com.br, a B2B vehicle marketplace that processed 4,000+ listings and enabled hundreds of B2B transactions. At Golive (SAP Partner) I shipped SAP HANA-integrated software behind a modern React/Next.js interface. I care about mentoring, code quality, and aligning technical decisions with business outcomes — and I'm currently looking for remote opportunities with international teams across US/EU time zones.

MF
Location
Curitiba, Brazil (UTC-3)
Experience
6+ years
Languages
Portuguese (Native)
English (Full Professional)
Education
Bachelor's, Computer Science
Universidade Federal do Paraná (UFPR)
Technical Degree, Informatics
Instituto Federal do Paraná (IFPR)
Certifications
Arc Certified Remote Developer
Open to
Remote, US/EU time zones

// experience

Where I've been

  1. Mar 2026 — Present

    Senior Full-Stack Engineer · G2i Inc.

    Remote (US Client)

    • Engaged through G2i, a talent network for software engineers, to deliver a project for a US-based client.
    • Worked with Next.js and AI-related technologies in a fast-paced, fully remote environment. (Details under NDA.)
    • Next.js
    • TypeScript
    • AI
  2. Apr 2024 — Mar 2026

    Senior Full-Stack Developer · Grupo LW (LW Tecnologia)

    Curitiba, Brazil (Hybrid)

    • Architected and launched a full-stack B2B vehicle marketplace (lwauto.com.br) processing 4,000+ vehicle listings and facilitating hundreds of business-to-business transactions, directly increasing revenue opportunities for fleet clients.
    • Engineered a responsive, pixel-perfect front-end with Next.js, TailwindCSS, and TanStack Query, enforcing component-driven architecture practices and maintaining good code structure and modularity.
    • Designed and implemented secure back-end REST APIs using Nest.js, Prisma, and MariaDB, applying microservices architecture and clean code principles to boost maintainability and reduce bug density.
    • Integrated third-party services and APIs, managing authentication flows, data synchronization, and error handling across distributed systems.
    • Next.js
    • Nest.js
    • TypeScript
    • Prisma
    • MariaDB
    • TailwindCSS
    • TanStack Query
  3. Nov 2021 — Present

    React Freelance Developer · Freelance

    Remote

    • Delivered custom web solutions for clients across industries, including Irrigate (irrigate.com.br), a business-facing site that expanded the client's digital reach.
    • Maintained and modernized legacy codebases, implementing new features and improving code quality with timely delivery.
    • Next.js
    • React.js
    • TypeScript
    • Node.js
  4. Jun 2022 — Nov 2023

    Full-Stack Developer · Golive Consultoria (SAP Partner)

    Curitiba, Brazil

    • Architected ERP system integrations with custom applications, connecting SAP HANA with modern web interfaces implemented with React/Next.js.
    • Increased project delivery, managing to develop and deliver 3 full-stack applications during tenure.
    • Improved API performance by up to 200% through advanced MongoDB optimizations, indexing strategies, and caching layers.
    • Built and maintained a reusable React/TailwindCSS component library, accelerating front-end development and enabling rapid deployment of white-label platforms for multiple clients.
    • Implemented CI/CD pipelines with GitLab, Heroku, and Firebase, reducing deployment errors and boosting reliability.
    • Mentored junior developers in best practices, code reviews, and Agile workflows.
    • React.js
    • Next.js
    • Node.js
    • MongoDB
    • SAP HANA
    • GitLab CI/CD
  5. May 2020 — Apr 2022

    Junior Full-Stack Developer / Intern · +A Educação / Imersys

    Curitiba, Brazil (Remote)

    • Developed EdTech platforms specializing in immersive learning with Virtual and Augmented Reality, serving thousands of users with Vue.js, Nuxt.js, Node.js, PostgreSQL, and MongoDB.
    • Led the implementation of key features, building interactive user interfaces and robust RESTful APIs integrated with multiple databases.
    • Collaborated with designers to translate prototypes into responsive, accessible, and mobile-friendly interfaces.
    • Worked with a Scrum team to build and deploy a successful learning application used in colleges throughout the country.
    • Vue.js
    • Nuxt.js
    • Node.js
    • PostgreSQL
    • MongoDB
  6. Aug 2019 — May 2020

    Intern · Tribunal de Contas do Estado do Paraná

    Curitiba, Brazil

    • Developed and maintained internal ASP.NET applications.
    • Contributed to an audit tool that improves transparency in public spending.
    • ASP.NET
    • C#
View full résumé

// live work

Deployed applications

A rolling showcase of sites and apps I've shipped that are live in production today. Scroll →

LW Auto Marketplace

LW Auto Marketplace

B2B vehicle marketplace processing 4,000+ listings.

  • Next.js
  • Nest.js
  • Prisma
  • MariaDB
Visit site
Irrigate

Irrigate

Business-facing site that expanded the client's digital reach.

  • Next.js
  • React.js
  • TailwindCSS
Visit site
Portfolio — Amanda

Portfolio — Amanda

Designer/dev collaboration — design-to-code handoff.

  • Next.js
  • TypeScript
  • TailwindCSS
Visit site

// projects

Selected work

LW Auto Marketplace

LW Auto Marketplace

B2B vehicle marketplace processing 4,000+ vehicles. Architected full-stack with Next.js, Nest.js, Prisma, and MariaDB.

Next.jsNest.jsPrismaMariaDB
Live site
Irrigate

Irrigate

Business-facing website that expanded the client's digital reach. Built as a freelance engagement.

Next.jsReact
Live site
URL Shortener

URL Shortener

TypeScript API that shortens URLs with clean architecture and REST conventions.

TypeScriptNode.jsAPI
Source

Pokémon List

Front-end app listing the first 151 Pokémon — clean TypeScript/React showcase.

TypeScriptReact
Code →

Portfolio Collab

Portfolio designed by Amanda Bonato and implemented by Matheus. Design-to-code collaboration.

TypeScriptNext.js
Code →
View all on GitHub

// skills

What I work with

Languages

TypeScriptJavaScriptPythonSQLJavaC#C

Frontend

Next.jsReact.jsVue.jsNuxt.jsTailwindCSSTanStack QuerySSRCSRResponsive Design

Backend

Node.jsNest.jsREST APIsJWT / OAuthMicroservices

Databases & ORMs

PostgreSQLMariaDBMongoDBSAP HANAPrismaTypeORMMongoose

Cloud & DevOps

AWS (EC2, S3, CloudWatch)Azure DevOpsDockerGitHub ActionsGitLab CI/CDFirebaseHerokuElastic APM

Architecture

Clean ArchitectureHexagonal ArchitectureDomain-Driven DesignTDDSystem DesignAgile / Scrum

// contact

Let's build something

I'm currently open to remote roles with international teams — US and EU time zones especially. If you're hiring, collaborating, or just want to compare notes on Next.js, Nest.js or system design, my inbox is open.

Say hi
matheusmfraresso@gmail.comGitHubLinkedIn