Open to opportunities

Hi, I'm
Yurkin Calderón

> AI-Driven Software Developer _

I build production software with AI as a force multiplier. From AI-automated logistics to cloud integrations, I turn ideas into scalable systems that deliver measurable results.

View my work Download CV

📍San José, Costa Rica ⌥github.com/yurkin22 @yurkinch10@gmail.com

React Node.js AWS AI

Results that ship

I don't just write code — I measure the impact. Here's what AI-accelerated engineering delivered in production.

records processed daily

optimized to ~1s queries

fewer lost orders

AI-assisted delivery module

growth in bookings

built with Astro + AI

inventory accuracy

AWS Textract automation

AI-native development

AI isn't a crutch — it's the base layer of how I build software. I use it end-to-end to ship faster, cleaner, and with real business impact.

Architect

AI-assisted system & database design

Generate

Code generation & scaffolding

Review

Code review & refactoring

Test

Test generation & debugging

Optimize

Query & performance tuning

Document

Docs & workflow automation

stack > ChatGPT Claude Gemini DeepSeek GitHub Copilot Cursor

Work experience

From intern to co-founder — shipping with AI at every step.

Full Stack Web Developer

Sep 2025 — Present

Digital SAT

Building production system modules end-to-end — from architecture to deployment — handling large-scale data and cloud automation on AWS.

▸ Built a delivery-management module that replaced a manual WhatsApp/Excel process, cutting lost orders from 60% to under 2%.
▸ Integrated Amazon Textract into PHP APIs to automate SIM inventory validation with 100% accuracy.
▸ Optimized databases handling ~1M records/day to ~1s queries; doubled weekly delivery throughput (80 → 160+ shipments).

PHP AWS MySQL DeepSeek Git

Co-Founder & Full Stack Developer

Dec 2024 — Present

Tico Flow

Co-founder building full-stack apps and fast, scalable websites for small businesses — replacing manual workflows with custom software.

▸ Developed an Astro website that grew client bookings 167% (30 → 80 per period).
▸ Built a React + Node.js inventory system (~300 SKUs) that eliminated ₡30,000/month in stock losses.

React Node.js Astro MySQL Tailwind CSS

Web Developer Intern

Jun 2024 — Sep 2024

ParallelDevs

Configured and maintained Drupal sites on Pantheon, improving platform stability through structured Git workflows and deployment practices.

▸ Maintained 10+ client sites; cut deployment incidents from ~10 to 1 per period using AI-assisted debugging.
▸ Built a nationwide directory of 800+ hospitals (~1,000 visits/day) with location search returning results in ≤3s.

Drupal Pantheon PHP Git

Selected projects

Real systems shipped to production — built fast and clean with an AI-assisted workflow.

Dark logistics delivery management dashboard with real-time tracking.

Sep 2025

Digital SAT — Logistics Delivery Module

Production logistics module that replaced a manual WhatsApp/Excel process, cutting lost orders from 60% to under 2%.

PHP AWS MySQL DeepSeek

Apr 2025

Auto Repair Shop Website

Fast Astro website that grew a client’s bookings by 167% (30 → 80 per period).

Astro Tailwind CSS JavaScript

Apr 2025

TicoFlow Site

Official website for Tico Flow Solutions — a fast, scalable Astro site for a Costa Rican development company.

Astro Tailwind CSS JavaScript

Dark inventory management dashboard with data tables.

Mar 2025

Supermarket Inventory System

React + Node.js inventory system for ~300 SKUs that eliminated ₡30,000/month in stock losses.

React Node.js MySQL

Interactive terminal

Don't just read — type. Explore my world through a terminal, the way I think every day.

yurkin@portfolio: ~

Welcome to Yurkin's terminal. Type 'help' to get started.
This is how I think: fast, typed, and to the point.

yurkin@portfolio:~$

Let's build something with AI

I'm open to full-time roles, freelance projects, and collaborations where AI accelerates real impact.

Get in touch WhatsApp

Hi, I'm Yurkin Calderón