Available for freelance & full-time

Hi, I’m Efrain Palencia 👋

Full-stack Web developer focused on React/TypeScript, Python (FastAPI), and Java (Spring Boot). I ship clean architectures, strong DX, and thoughtful UX—deployed to AWS, Vercel, or Railway.

  • React / Vite
  • TypeScript
  • OpenAI / Pinecone
  • Python / FastAPI
  • Java / Spring Boot
  • PostgreSQL
  • AWS

10+

Projects shipped

2–5w

Typical delivery

EST

US-based

View Projects Download Résumé Let’s talk
Portrait of Efrain Palencia
Location
Florida (EST)
Focus
SMB apps, AI
Stack
React • FastAPI • Spring
DB
Postgres • MySQL

A bit of my story

  1. B.S. in Software Engineering (WGU)

    Built foundations in software design, data, and systems.

  2. Shipped SaaS MVPs & internal tools

    React dashboards, FastAPI/Spring services, CI/CD, auth, and monitoring.

  3. Lean into AI integrations

    Chatbots, RAG, embeddings, and voice pipelines that improve ops & CX.

What I’m great at

Frontend

  • React + TypeScript, Vite
  • Design systems (Tailwind, shadcn/ui)
  • Accessibility & performance

Backend & DevOps

  • FastAPI, Flask, Spring Boot
  • PostgreSQL, SQLAlchemy/JPA
  • Docker, GitHub Actions, AWS

AI Integrations

  • OpenAI, embeddings, RAG
  • Pinecone, retrieval tuning
  • TTS/STT, chat UX

Let’s build something great

Have an idea or a team that needs a boost? I’d love to help.

Book a free consult efrain@efai-tech.com