Skip to content

Navigation Menu

Sign in
Sign up
@dev-queiroz
dev-queiroz
Follow

Douglas Queiroz dev-queiroz

Backend Developer | Node.js • TypeScript • NestJS • PostgreSQL • Docker • AWS

Highlights

  • Pro

Block or report dev-queiroz

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
dev-queiroz /README.md

Douglas Queiroz

Backend Developer · Node.js · TypeScript · NestJS · Java

I build backend systems, APIs and developer tools with a focus on architecture, scalability, security and reliability.

Currently studying Computer Science at UFC Quixadá and deepening my expertise in backend engineering, distributed systems and Java/Spring Boot.


What I Build

  • Production-oriented REST APIs
  • Authentication & authorization with JWT, OAuth2 and RBAC
  • PostgreSQL-backed systems
  • Scalable backend architectures
  • Clean Architecture & modular design
  • Caching, rate limiting and background processing
  • Dockerized applications and CI/CD
  • Full-stack systems when the product requires it

Featured Projects

🚗 AutoRadar

Open-source platform for discovering, comparing and finding where to buy vehicles.

TypeScript · Next.js · APIs · Data Integration

View repository

📊 Tracked

Product analytics platform with event ingestion, real-time analytics, authentication, rate limiting and observability.

NestJS · TypeScript · Prisma · PostgreSQL · Docker · Clean Architecture

View repository

🏟️ ArenaHub

Sports arena management and reservation platform with authentication, reservations and administrative operations.

NestJS · TypeScript · PostgreSQL · Prisma · Docker · JWT

Backend · Frontend

🏥 Hospital Management System

Healthcare management platform designed around clinical operations, authentication, permissions and data management.

NestJS · Express · TypeScript · PostgreSQL · Supabase · Docker · Python

Backend · Frontend

⚙️ Forge

Contract-first DSL that generates TypeScript and JSON Schema from a single source of truth.

JavaScript · DSL · Code Generation · JSON Schema

View repository


Tech Stack

Backend

Node.js TypeScript NestJS Express Java Spring Boot

Databases & Infrastructure

PostgreSQL Redis Docker Supabase

Engineering

REST APIs · JWT · OAuth2 · RBAC · Prisma · Clean Architecture · Testing · CI/CD · Rate Limiting · Caching · API Design


Currently

I'm focused on becoming a stronger backend engineer, with particular interest in:

  • Java & Spring Boot
  • Distributed systems
  • System design
  • Performance & scalability
  • Observability
  • Event-driven architectures
  • Cloud infrastructure

Connect

LinkedIn Portfolio


Building systems that are meant to work beyond the demo.

Pinned Loading

  1. autoradar autoradar Public

    An open-source platform that helps people discover, compare and find where to buy vehicles.

    TypeScript 1

  2. tracked tracked Public

    Complete Product Analytics platform featuring robust event ingestion, real-time analytics, JWT authentication, and observability. Built with NestJS, TypeScript, Prisma, and PostgreSQL. Production-r...

    TypeScript 1

  3. arenahub-backend arenahub-backend Public

    ArenaHub backend — TypeScript API for court booking, reservations and authentication; PostgreSQL-backed, Docker-ready and production-ready.

    TypeScript 1

  4. sistema-hospitalar sistema-hospitalar Public

    API RESTful projetada para gerenciar operações de clínicas e unidades de saúde.

    TypeScript 6

  5. financeflow financeflow Public

    Personal Finance Manager with AI-powered insights, smart budgeting, and beautiful visualizations. Built with NestJS, React 19, TypeScript, Prisma, and Clerk. Full TDD, Docker, and CI/CD.

    1

  6. forge forge Public

    Contract-first DSL that generates TypeScript and JSON Schema from a single source of truth.

    JavaScript 2

AltStyle によって変換されたページ (->オリジナル) /