Open to remote opportunities!
sergio@portfolio: ~/about
sergio@portfolio:~$ whoami

Sergio Andres Jimenez Ortiz

// Full Stack Web Developer

sergio@portfolio:~$ cat ./about.txt
  • // 3 years building production-grade web apps that scale
  • // Shipped a platform with 60,000+ registered users
  • // Specialized in Next.js, TypeScript, NestJS, Go, PostgreSQL
  • // Interactive data visualization with Three.js / D3.js / p5.js
  • // Based in Barquisimeto, Venezuela — open to remote roles
sergio@portfolio:~$ ls -la ./social/
sergio@portfolio:~$
Get in touch LinkedIn GitHub

~$ git log --author="sergio"

  1. Full Stack Developer

    @ Brian Calli Music
    Nov 2025 → Present

    // Developing interactive music visualization tools for research and education, used by music students and researchers. Built 3D chord exploration environments and data-driven graphs using Three.js, D3.js, p5.js, and Processing, backed by a NestJS API and a PostgreSQL database.

    • + Interactive data visualization
    • + 3D chord exploration environments
    • + NestJS API and PostgreSQL database
  2. Full Stack Developer

    @ Pinguino Digital C.A
    May 2024 → Nov 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, owning architecture decisions, performance optimization, and feature delivery.

    • + Full stack development (60K+ users)
    • + Architecture decisions
    • + Performance optimization
  3. Freelance Full Stack Developer

    @ Freelance
    Dec 2024 → May 2025

    // Designed and developed a mobile dating and services app for the Peruvian market, end-to-end frontend and backend, using React Native, Expo, PostgreSQL, Drizzle ORM, and Node.js.

    • + Mobile development (React Native / Expo)
    • + Backend and ORM design
    • + Database architecture
  4. Full Stack Developer

    @ Elvensa Barinas C.A
    Apr 2023 — May 2024

    // Designed and developed a full-stack e-commerce and management web application for an SME using Next.js, MongoDB, and TailwindCSS. Modernized internal workflows and proposed new business opportunities in a growing market. Served as my Systems Engineering thesis project.

    • + Full stack e-commerce
    • + Inventory management system
    • + Systems Engineering thesis project

Projects

Brian Calli Music - Visualization Tools

Brian Calli Music - Visualization Tools

[ JavaScript ] [ TypeScript ] [ PostgreSQL ]

// Interactive music visualization tools for research and education. 3D chord exploration environments and data-driven graphs built with Three.js, D3.js, p5.js, and Processing, served through a NestJS backend with a PostgreSQL database.

Pesca y Gana

Pesca y Gana

[ Nextjs ] [ TailwindCSS ] [ Supabase ] [ PostgreSQL ] [ TanStack ]

// Web-based betting game with 60,000+ registered users, built and scaled at Pinguino Digital C.A. Worked on the optimization and development of features such as live support chat, player statistics, and automated top-ups, using Next.js, Supabase, and PostgreSQL.

Moneda Feliz

Moneda Feliz

[ Nextjs ] [ TailwindCSS ] [ Supabase ] [ PostgreSQL ]

// Multiplayer Heads or Tails betting game. Built the complete project at Pinguino Digital C.A, from the top-up and withdrawal flow, the admin panel, bets, match creator, and real-time game logic using Supabase, Next.js, and TailwindCSS.

Rack

Rack

[ Nextjs ] [ TailwindCSS ] [ TanStack ]

// SaaS used by small businesses in my locality. As part of my work at The Vault Software, I developed the complete frontend, using Next.js and leveraging tools like SSR and TanStack Query for an efficient and pleasant user experience.

Shark TAInk

Shark TAInk

[ Nextjs ] [ TailwindCSS ] [ MongoDB ] [ Solana Blockchain ] [ Express ]

// Web3 page created as part of a freelance job inspired by Shark Tank, featuring AI agents called 'Sharks' that evaluate projects from entrepreneurs and startups. Users can create their own AI agents and share them with the community, integrating blockchain for payment management in agent creation.

~$ cat ./about.md

Sergio Jimenez

// Systems Engineer and Full Stack Web Developer with 3 years of production experience.

I build production-grade web applications that scale, from database architecture to polished UI. Over the past 3 years I have delivered platforms with real user impact: a betting game serving 60,000+ registered users, interactive music visualization tools for research and education, and custom management systems for SMEs. I thrive on challenging projects that push technical boundaries, long-term professional relationships, and scalable systems with real user impact. Open to remote Full Stack and Backend roles.

.skills/
├── primary/
│ ├── Next.js
│ ├── TypeScript
│ ├── NestJS
│ ├── PostgreSQL
│ └── Tailwind CSS
├── comfortable/
│ ├── React
│ ├── Node.js
│ ├── Supabase
│ ├── MongoDB
│ ├── Docker
│ ├── GitHub Actions
│ ├── Go
│ └── FastAPI
└── exploring/
├── Three.js
├── D3.js
├── p5.js
├── GraphQL
└── gRPC

Want to contact me?

// I can boost your project or be part of your team

sergio@portfolio:~/connect$ git remote add origin mailto:sergio2jo13@gmail.com
sergio@portfolio:~/connect$ git remote -v
origin sergio2jo13@gmail.com (fetch)
origin github.com/SergioJOZ (push)
sergio@portfolio:~/connect$