Client work
Sara Raquel — Nurse & Doula
Institutional site for a client who is a nurse and doula: professional profile, specialties and consultation booking. In production.
Hi there, I'm
Patrick Meirelles
Backend Developer
I build scalable, high-performance APIs with Node.js and TypeScript.
About Me
As a backend developer with over 4 years of experience, I specialize in building high-performance, scalable applications using Node.js, TypeScript, and JavaScript. My focus is on creating APIs that drive business growth and improve the user experience. I also hold a postgraduate degree in Machine Learning, and I like bringing that data-driven perspective into the projects I build.
4+years of experience
3companies
APIs & Cloudcurrent focus
What I use
Skills
From the API in production to the model behind it.
Languages
TypeScriptJavaScriptPython
Backend
Node.jsREST APIs
Databases
MySQLRedisElasticsearch
Cloud & DevOps
AWSDocker
Machine Learning
Pandas / NumPyScikit-learnTensorFlow / PyTorch
Tools
GitClaude Code
Where I've worked
Experiences
Work
Projects
A few personal and open-source projects.
Coming soon
Clinic Management System
Management system for a clinic client: appointments, services and products, with PDF receipts emailed automatically. NestJS backend + Next.js frontend, built via Astrophage Labs.
Next.jsNestJSTypeScript
Finance Core
Backend API for a personal finance system: accounts, categories and transactions, with JWT access/refresh authentication and email password reset.
NestJSTypeScriptTypeORMPostgreSQL
Let's talk
Contact
I'm open to new opportunities and collaborations. Send me an email or reach out on social media.