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
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.
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.
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.
New York, United States - Remote
- 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
Bournemouth, United Kingdom - Remote
- Frontend for a property rental and management platform.
- Built with Nuxt.js and Pinia, with Cypress and Mocha coverage.
Nuxt.js·Pinia·Cypress
Helsinki, Finland - Remote
- B2B automation for social marketing content generation.
- n8n orchestration with GCP Programmable Search as an AI research agent.
n8n·GCP·AI agents
Curitiba, Brazil - Remote
- 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
Curitiba, Brazil - Remoto
- 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
Helsinki, Finland - Remote
- 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
São Paulo, Brazil - Remote
- 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
Curitiba, Brazil - On site
- 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
Curitiba, Brazil - Remote
- 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
Curitiba, Brazil - On site
- 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.
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.