I will build your fullstack web app

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G
gabriel_luz_sun
Gabriel Luz
build your fullstack web app
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About this gig

Looking for a senior engineer who can actually ship not just write code?

I'm a Full-Stack Software Engineer with 8+ years building production-grade web applications for fintechs, startups and scale-ups. I've worked at companies like PicPay, Wake and iugu, delivering high-reliability systems at scale.

What I can build for you:

  • Full-stack web apps (Rails or Node.js backend + React/Vue frontend)
  • REST APIs and third-party integrations
  • Async systems with queues and event-driven architecture
  • Database design and performance optimisation
  • AWS infrastructure (Lambda, SQS, SNS, S3)

Why work with me:

  • Senior-level code quality with Clean Architecture and DDD
  • Clear communication and fast delivery
  • Experience in fintech, e-commerce and SaaS
  • CI/CD, Docker and automated tests included

Tech stack: Ruby on Rails · Node.js · NestJS · React · Vue.js · TypeScript · PostgreSQL · Redis · Docker · AWS

Message me before ordering so we can align on scope and make sure I'm the right fit for your project.

  • Programming language

    • Ruby/RoR

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Localization
    • Performance
    • Databases

  • Frontend framework

    • Flutter
    • Next.js
    • Nuxt.js
    • React.js
    • Vue.js

  • Backend framework

    • Express.js
    • FastAPI
    • Laravel
    • NestJS
    • Node.js

  • AI & low/no code builders

    • Lovable
    • Bolt.new
    • Co.dev
    • Cursor
    • Bubble
    • FlutterFlow
    • Mendix
    • Webflow
    • Thunkable
    • AppGyver
    • Wappler
    • Stacker
    • Betty Blocks
    • V.One

Get to know Gabriel Luz

Gabriel Luz

FullStack Software Engineer

  • FromBrazil
  • Member sinceMar 2026
  • Avg. response time1 hour

  • Languages

    Portuguese, English
Full-Stack Software Engineer with 8+ years delivering production-grade web products in fintech, govtech and e-commerce. Extensive experience across the full SDLC — from clean architecture design (DDD, modular monolith, microservices) to CI/CD, observability and on-call reliability. Proven track record at high-scale companies including PicPay, Wake and iugu, leading technical migrations, payment integrations and async processing pipelines. Seeking Senior / Staff / Tech Lead remote roles (Brazil or global).

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