Open to opportunities

Juan Fernando Arango

@juanfernandoarango

Message

I’m a senior full-stack developer building AI-powered web apps and automation systems with production-ready delivery.

Colombia

Message

What I'm looking for

I’m looking to build production-ready full-stack and AI automation systems remotely and asynchronously—using senior judgment, clean architecture, and LLM-driven agents—to deliver without adding headcount.

I build and ship full-stack web applications and AI-powered automations end-to-end—backend logic, APIs, databases, and clean functional UIs. AI coding tools (Claude Code, GitHub Copilot) are part of my daily workflow as a co-pilot, not an autopilot. What I bring beyond shipping code is 15+ years of IT leadership: I directed a 6-company IT division, ran core banking applications at Bancolombia, and served as General Manager of a manufacturing company.

I focus on production work that’s meant for real users, not demos, by reading business processes—not just specs. I work 100% remote and asynchronously, delivering senior technical capacity without adding headcount, including end-to-end SaaS and multi-tenant apps, LLM-based agents (OpenAI/Anthropic), WhatsApp bots, dashboards, and workflow automation with n8n.

Experience

Work history, roles, and key accomplishments

Current

Independent Full-Stack Dev

Current

Independent

Jan 2020 - Present (6 years 5 months)

Built and shipped production-ready full-stack web applications and AI-powered automations end-to-end, including backend logic, APIs, databases, and functional UIs. Developed LLM-based agents and tools using Node.js/TypeScript and n8n to automate real operational workflows.

TypeScript REST APIs Prisma AI Agents Prompt Engineering N8n Flutter

IT Director

Organización Equitel

May 2014 - Dec 2020 (6 years 7 months)

Directed IT for a 6-company business group, implementing unified ERP and DRP while delivering COP 3B+ (~USD 750K) savings through portfolio rationalization and vendor consolidation.

IT leadership ERP Implementation ITIL IT Governance Vendor Consolidation Application Architecture

Operations Director

LAP International

Jul 2013 - May 2014 (10 months)

Redesigned the control center and built an in-house web tool that freed 1.5 FTEs for other tasks.

Control Center Redesign Web Tools Process Optimization Operational Efficiency Stakeholder Management

General Manager

Tecnidecor S.A

Jul 2010 - Mar 2011 (8 months)

Managed a manufacturing company, owning marketing planning, costing and pricing systems, and receivables recovery.

Business Management Manufacturing Operations Marketing Planning Financial Operations

Senior Systems Analyst

Bancolombia S.A

Jun 2006 - Nov 2009 (3 years 5 months)

Implemented credit card core applications including Membership Rewards and the American Express Business card, supporting the Banconautas program.

Membership Rewards Implementation Banconautas Program Systems Analysis

Education

Degrees, certifications, and relevant coursework

Universidad Carlos III de Madrid

Master's in Banking Management, Banking Management

2008 - 2010

Completed a Master's in Banking Management from 2008 to 2010 as part of a multi-university program with Universidad Autónoma de Barcelona and Universidad de Alicante.

Universidad Autónoma de Barcelona

Master's in Banking Management, Banking Management

2008 - 2010

Completed a Master's in Banking Management from 2008 to 2010 as part of a multi-university program with Universidad Carlos III de Madrid and Universidad de Alicante.

Universidad de Alicante

Master's in Banking Management, Banking Management

2008 - 2010

Completed a Master's in Banking Management from 2008 to 2010 as part of a multi-university program with Universidad Carlos III de Madrid and Universidad Autónoma de Barcelona.