Full Stack Engineer

Open to full-time
Bio

Juan C. is a Full Stack Engineer with four years of experience specializing in Next.js, TypeScript, and legacy platform migrations. His expertise extends to AI-powered automation and delivering clean, scalable code. Juan's core technology stack includes JavaScript, React.js, Node.js, and PostgreSQL, which he uses to build SaaS platforms, web applications, and automated workflow systems. He is proficient in using tools like n8n, Docker, and CI/CD practices to ensure robust and efficient development processes. At JYM Industry, Juan founded and developed JYM Agent, a SaaS platform for AI-based customer service and inventory management, achieving significant improvements in operational efficiency. At Carson Inc., he led a website migration from WordPress to Next.js, boosting SEO performance from 65% to 96% and increasing organic traffic by 25%. Juan holds a degree in Mechatronic Engineering from Instituto Tecnológico Metropolitano, Medellín, and has completed several specialized courses in web development and AI automation. He is well-suited for roles that focus on innovative engineering projects, particularly those involving AI integrations and scalable web solutions.

Expertise
Next.jsTypeScriptNode.jsGraphQLMongoDBGitJavaScriptWordPressCSSHTMLReactAWSVue.jsWeb Scraping
Video Intro
Assessments
APPLICANT AVG · 53%JUAN · 91%0255075100TopASSESSMENT SCORE (0–100)

General Project Assessment

(91/100)
  • Great on Count Subarrays with Sum Equal to KEasy
  • Great on Client-Side Authentication Failure InvestigationMedium
  • Great on Discuss the Advantages of Context API vs. Redux in ReactHard
Projects

JYM Agent

JYM Agent is a SaaS platform that delivers automated WhatsApp chatbots powered by n8n as the external workflow engine, with a built-in RAG system that lets each customer train their own model by uploading their business knowledge and customizing system prompts per agent. Built on Next.js, PostgreSQL, and Stripe (deployed on Railway), the product offers a multi-agent dashboard, paid-only plans with usage-based pay-as-you-go billing, and pluggable tools for calendar booking, inventory, email, and marketing automation with a dedicated multi-agent module for Dropi dropshipping users in LATAM currently in development

Experience

  1. Founder & Full Stack Developer

    JYM Industry· Enterprise & SaaSMay 2025 — Present
    • Founded JYM Industry and built JYM Agent, a SaaS platform offering AI agents for customer service, appointment scheduling, and RAG-powered inventory management.
    • Architected and developed the full platform end-to-end with Next.js and TypeScript, delivering a scalable, production-ready application.
    • Designed complex automation workflows with n8n and MCP servers, integrating RAG systems and AI agents to automate core business operations.
    Next.jsTypeScriptn8nMCP servers

  2. Mid-Level Full Stack Developer

    Carson Inc· OtherApr 2024 — May 2026
    • Designed and built a complete internal ticketing system from the ground up, with ticket creation, status tracking, priority levels, authentication, and notifications.
    • Reduced average support ticket response time by 40% through a custom-built ticketing workflow tailored to the team's needs.
    • Cut internal task resolution times by 30% by streamlining ticket categorization, tracking, and team communication.

  3. Junior Full Stack Developer

    Carson Inc· OtherFeb 2024 — May 2024
    • Led the full migration of the company's website from WordPress to Next.js with TypeScript, improving performance, scalability, and maintainability.
    • Boosted SEO performance from 65% to 96% via SSR and advanced optimization, improving page load speed and Core Web Vitals.
    • Increased organic traffic by 25% within 3 months of launching the SEO improvements.
    • Built user-facing features including a product comparison tool, indexed search, and a multilingual system supporting 6 languages via i18n.
    Next.jsTypeScriptWordPress
Education

  1. N8N + MCP Servers: Automation and Smart AI Agents

    UdemyMedellin2026 — 2026

  2. Frontend Specialization

    Digital House, Argentina (Remote)Argentina2024 — 2025

  3. Fullstack Web Development

    Digital HouseArgentina2022 — 2023

  4. Mechatronic Engineer

    Instituto Tecnológico Metropolitano, MedellínMedellín, Colombia2018 — 2023
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Full Stack Engineer

Medellín, Antioquia, COL · 3-4 years experience

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