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Currently at Phew.ai · New YorkOpen to selected collaborations

Fullstack Engineer · AI & SaaS

Murilo
Matias

From interface to infrastructure.

I design and ship fullstack products for international teams — AI platforms, SaaS systems, and interfaces with enterprise composure.

View journeyGet in touch
5+
Years shipping product
4
Countries, one standard
AI
SaaS & automation focus
7.0
IELTS · full professional English

Murilo Henrique Matias

React/Next.js/Vue/Nuxt.js/React Native/Node.js/Nest.js/TypeScript/AWS/n8n/PostgreSQL/MongoDB/Docker/Cypress/Jest/Figma/Stripe/Supabase/Expo/Electron/Tailwind/Keycloak/React/Next.js/Vue/Nuxt.js/React Native/Node.js/Nest.js/TypeScript/AWS/n8n/PostgreSQL/MongoDB/Docker/Cypress/Jest/Figma/Stripe/Supabase/Expo/Electron/Tailwind/Keycloak/
01About

A builder who treats software as a system, not a stack of screens.

I am a fullstack web developer with more than five years of experience, and a particular depth in SaaS and AI-based products. I have worked inside international teams in the United States, the United Kingdom, and Finland — always with the same brief: ship something that holds up.

On the engineering side I design APIs in Node.js and TypeScript, serverless systems on AWS, and web, mobile, and desktop clients. On the product side I prototype in Figma, write SEO-aware interfaces, and lead frontend teams when the work needs direction as much as delivery.

The through-line is composure. Enterprise constraints, technological edge, and an interface that feels inevitable.

Profile

Based
Brazil
Focus
SaaS · AI · platforms
Languages
PT native · EN professional · FR elementary
Education
Systems Analysis & Development, Universidade Positivo

Signals

  • Hackathon Yaak Ventures
  • IELTS Band 7.0
  • Digital product design with Lean & UX
02Capabilities

The stack is a means. The system is the work.

01

Product engineering

Web and mobile clients with Next.js, React, Vue, Nuxt, React Native, and Expo. SEO-aware HTML and CSS. Component systems in Tailwind, MUI, Ant Design, and Bootstrap.

ReactNext.jsVueNuxtReact NativeExpoElectron
02

Platform & cloud

REST APIs with Nest.js and Express. Serverless on AWS Lambda, S3, Cognito, and DynamoDB. Persistence in PostgreSQL and MongoDB. Docker, GitHub Actions, and cloud deploys on AWS, GCP, and DigitalOcean.

Node.jsNest.jsAWSPostgreSQLMongoDBDockerCI/CD
03

Intelligence & automation

AI content platforms, n8n workflow orchestration, programmable search agents, and payment systems with Stripe and RevenueCat. Built for operators, not demos.

n8nOpenAI / LLMsGCP SearchStripeSupabase
04

Interface systems

UI/UX prototyping in Figma, Lean product design, and frontend leadership. Interfaces that survive real users, real data, and real enterprise constraints.

FigmaUXDesign systemsLeadership
03Career journey

A path through product companies, not just codebases.

From Curitiba to New York, Helsinki, and Bournemouth — building marketplaces, credit platforms, AI automation, and operator tools.

  1. Jan 2026 — Present

    Phew.ai

    Fullstack Developer

    New York, United States

    • Building an AI platform for automated content creation.
    • Web application in Next.js and mobile in React Native with Expo.
    • Automation flows in n8n, plus Stripe and RevenueCat for payments.
    Next.js·React Native·n8n·Stripe

  2. Oct 2025 — Jan 2026

    Skoobie AI & Digital Strategy

    Frontend Developer

    Bournemouth, United Kingdom

    • Frontend for a property rental and management platform.
    • Built with Nuxt.js and Pinia, with Cypress and Mocha coverage.
    Nuxt.js·Pinia·Cypress

  3. Aug 2025 — Nov 2025

    Tribe Networks Oy

    AI Automation Analyst

    Helsinki, Finland

    • B2B automation for social marketing content generation.
    • n8n orchestration with GCP Programmable Search as an AI research agent.
    n8n·GCP·AI agents

  4. May 2025 — Oct 2025

    DBFactory Informática

    Fullstack Developer

    Curitiba, Brazil

    • B2B platform for real-estate sales operations.
    • React, React Query, and Zustand on the client. Nest.js, Keycloak, and PostgreSQL on the server.
    • Containerized environments and Cypress / Jest coverage.
    React·Nest.js·PostgreSQL·Keycloak

  5. Mar 2025 — May 2025

    Moonshot AI

    Frontend Scripts Developer

    New York, United States

    • JavaScript enhancement scripts for e-commerce storefronts.
    • Scripts used as LLM training data for later automatic site improvement.
    JavaScript·LLMs

  6. Oct 2024 — May 2025

    Sitehenger

    Founder · Fullstack Developer

    Curitiba, Brazil

    • Designed and built conversion-focused sites for small companies, from Figma to Next.js.
    • Custom component library, hosted on AWS S3 and CloudFront.
    • Multi-tenant admin SPA in React and Nest.js on AWS Lightsail — analytics, form submissions, and dynamic content.
    Next.js·Nest.js·AWS·Figma

  7. May 2023 — Oct 2024

    Tribe Networks Oy

    Fullstack Developer

    Helsinki, Finland

    • Marketplace for space rental and freelance services.
    • Next.js and MUI with Redux on the frontend. Nest.js and MongoDB on the backend. Stripe for payments.
    Next.js·Nest.js·MongoDB·Stripe

  8. Apr 2022 — Jul 2024

    Liquid AI

    Frontend Developer · Team Lead

    São Paulo, Brazil

    • Frontend for a B2B SaaS platform for credit-risk analysis.
    • React and Redux, with Cypress for user flows and Jest for complex logic.
    • Led the frontend team and mentored junior engineers.
    React·Redux·Cypress·Jest

  9. Mar 2021 — Feb 2022

    WeON Omnichannel

    Frontend Developer

    Curitiba, Brazil

    • Features and fixes on a B2B SaaS call-center platform.
    • Vue.js, Vuetify, and Vuex. Introduced the first Cypress coverage for common user flows.
    Vue.js·Vuetify·Cypress

  10. Jun 2019 — Jan 2021

    YouSendr

    Fullstack Developer

    Curitiba, Brazil

    • Google Workspace add-ons in Vue and React with Ant Design, plus Google Apps Script.
    • Serverless backend on AWS Lambda, DynamoDB, and Cognito.
    React·Vue·AWS Lambda·DynamoDB

  11. Feb 2018 — May 2018

    Orbital

    Fullstack Developer

    Curitiba, Brazil

    • Features and defect work on e-commerce and corporate sites.
    • PHP and Laravel, with Dockerized development environments.
    PHP·Laravel·Docker

Education

Universidade Positivo

Technologist, Systems Analysis and Development

2018 — 2021

Federal University of Technology — Paraná

Telecommunications Systems · incomplete

2016 — 2017

04Selected work

A portfolio built for case studies — assembling now.

Engineering write-ups will live here. Until then, design and web work is on Behance, and source is on GitHub.

Open BehanceEnter the archive

Studio · 2024–2025

01

Sitehenger

Conversion sites, a custom component system, and a multi-tenant admin for operators.

Open ↗

Web · Behance

02

The Venue

A designed web presence for hospitality — part of the public design archive.

Open ↗

Web · Behance

03

Talent on Rails

Product-minded interface work for a talent platform.

Open ↗

Engineering

Reserved

Next case study

A deep-dive on architecture, interface, and outcome. Slot reserved.

Reserved
05Contact

If the brief is serious, so is the reply.

Product teams, founders, and studios — especially where AI, SaaS, and interface quality have to coexist.

LinkedIn ↗GitHub ↗Behance ↗