David
Jaramillo
I sit at the intersection of finance, operations, and software. I don't just analyze broken processes — I build the tools that fix them.
15+
Years exp.
90%
Work automated
3
Apps in prod.
Résumé
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About me
Two worlds that
rarely meet
Industrial Engineer with 15+ years inside the enterprise — logistics, supply chain, and financial control at companies like Holcim/Amrize. At some point I stopped waiting for IT to build what the business needed and started building it myself.
On the enterprise side I design and code SAP integrations in C# and Python, financial reconciliation pipelines, Power BI dashboards, and VBA automation that eliminates hundreds of manual hours per month. I work directly with CFOs, controllers, and ops directors — I speak their language and deliver in code.
On the product side I build and ship full-stack apps solo: React, Next.js, Firebase, TypeScript — a real-time delivery PWA live in Medellín, a language learning platform, and a corporate site for a 100+ member organization. Not prototypes. Real users, real data, real uptime. I speak French C1 and English B2, which lets me work directly with international teams and clients.
Enterprise Automation
Python, C# & VBA pipelines integrated with SAP cutting manual work up to 90%.
Financial Systems
End-to-end reconciliation automation with 100% data quality. I speak the CFO language.
Full Stack Apps
Production PWAs and corporate sites with React, Next.js, Firebase and TypeScript.
Business Intelligence
Power BI dashboards and SQL models that turn raw data into real decisions.
Work
Projects in production
Not side projects collecting dust — real apps used by real people.
DeliStars
Real-Time Delivery Management Platform
Full-stack PWA running live for a food business in Medellín. Handles order management, real-time GPS driver tracking, cashier dashboard, client-facing order flow, and in-app chat.
Guardia Real de Antioquia
Corporate Website
Official site for a 100+ member musical organization founded in 1983. Features service showcase, event section, member portal and contact flows.
Jaralingua
Language Learning Platform
Interactive educational platform for learning English and French with structured lessons, vocabulary exercises and multimedia content.
Tools
Tech Stack
Web & Frontend
React
Next.js
TypeScript
Tailwind
JavaScript
HTMLBackend & Automation
Python
C#
Firebase
SQL
Git
VS CodeData & Enterprise
SAP
Power BI
Excel
VBAContact
Let's work together
Looking for someone who understands both the business problem and how to build the solution? Let's talk.