j
jefersongomez1

JefersonG

@jefersongomez1

From idea to working API

Costa Rica
English, Spanish
About me
From idea to working API. Hi! I'm Jeferson, a backend developer from Costa Rica. I build secure, documented REST APIs and web apps with Node.js, TypeScript, Express and PostgreSQL, and I also work with Go and React. I deploy with Docker, Linux and GitHub Actions, and I have built AI chatbots that answer questions from documents (RAG). I'm new on Fiverr, so I put extra care into every order and keep you updated at every step. Tell me about your project and I'll reply with a clear plan, timeline and price.... Read more

Skills

j
jefersongomez1
JefersonG
Offline • 
Average response time: 1 hour

See my services

API & Integrations
I will build a secure backend API with nodejs and postgresql
From$120 / projectMore details

Work experience

Independent

Backend Developer

Independent • Full-time

May 2026 - Present • 6 mos

Designing, building and deploying my own backend and full-stack projects: - Inventory management system: REST API (Node.js, TypeScript, Express, PostgreSQL, Prisma) with JWT authentication, role-based access, validation and tests, plus a React + Vite frontend. Both repositories use GitHub Actions. - StudyFlow: REST API in Go (Gin) with Google OAuth 2.0 login and Swagger documentation. - TechRAG Assistant: document ingestion, embeddings and semantic search with pgvector. - Personal portfolio deployed on a Linux server with Nginx, HTTPS and automatic deployment. All projects are on my GitHub.