Simera Professional Key (SPK)

Sergio J

Venezuela

Full Stack Developer

$ 1,700/month

4 yrs exp

I don’t just code features; I take full ownership of your build. At 24, I combine the technical rigor of a Systems Engineer with the agility of a modern Fullstack Developer. My goal is to help founders and businesses transition from ideation to a live, scalable product, ensuring that every technical decision made today supports your growth tomorrow. Why work with me? Unlike developers who only focus on tasks, I bring a holistic architectural mindset to your project. Whether we are building…

Skills

  • Docker
  • Git
  • Linux
  • MongoDB
  • Node.js
  • PostgreSQL
  • Python
  • React
  • Typescript
  • BackEnd Developer
  • c# Developer
  • Full Stack
  • Full Stack Developer
  • GraphQL
  • NestJS
  • NextJS
  • Phyton
  • ReactJS
  • Python/R
  • RESTful APIs
  • Python3
  • FastAPI
  • Fullstack
  • Nuxt.js
  • Paython
  • Nest.js
  • Next.js
  • Next js
  • GitHub Actions
  • Supabase
  • REST APIs
  • Full Stach
  • Fullstack developer
  • Three.js
  • Fast API
  • Fullstack Development
  • RMA Processing
  • Full Stack Development
  • Type Script
  • Full-Stack Development
  • Typescrtipt
  • gRPC

Sergio J

Venezuela

Full Stack Developer

$ 1,700 /month

Part Time: $ 1,450/month

4 yrs exp

I don’t just code features; I take full ownership of your build. At 24, I combine the technical rigor of a Systems Engineer with the agility of a modern Fullstack Developer. My goal is to help founders and businesses transition from ideation to a live, scalable product, ensuring that every technical decision made today supports your growth tomorrow. Why work with me? Unlike developers who only focus on tasks, I bring a holistic architectural mindset to your project. Whether we are building…

Skills

  • Docker
  • Git
  • Linux
  • MongoDB
  • Node.js
  • PostgreSQL
  • Python
  • React
  • Typescript
  • BackEnd Developer
  • c# Developer
  • Full Stack
  • Full Stack Developer
  • GraphQL
  • NestJS
  • NextJS
  • Phyton
  • ReactJS
  • Python/R
  • RESTful APIs
  • Python3
  • FastAPI
  • Fullstack
  • Nuxt.js
  • Paython
  • Nest.js
  • Next.js
  • Next js
  • GitHub Actions
  • Supabase
  • REST APIs
  • Full Stach
  • Fullstack developer
  • Three.js
  • Fast API
  • Fullstack Development
  • RMA Processing
  • Full Stack Development
  • Type Script
  • Full-Stack Development
  • Typescrtipt
  • gRPC

Full Stack Developer

Brian Callipari Music
November 2025 - present

Developing interactive music visualization tools for research and education. Built 3D chord exploration environments and data-driven graph tools using Three.js, D3.js, p5.js, and Processing. Designed and maintained PostgreSQL databases with a NestJS backend.

Full Stack Developer

Pinguino Digital C.A.
May 2024 - November 2025

Built and scaled Pesca y Gana, a web-based betting game with 60,000+ registered users. Led full stack development using Next.js, NestJS, Supabase, and PostgreSQL. Responsible for architecture decisions, performance optimization, and feature delivery.

Full Stack Developer

Elvensa Barinas C.A.
April 2023 - May 2024

Developed and maintained a custom management and e-commerce system for an SME. Handled end-to-end development from database design to frontend implementation.

Backend Developer

Freelance
January 2023 - present

Delivered backend APIs and services for multiple clients, primarily using Python and FastAPI.

Smart Scores

Role Fit
100