JuanPa

Technology Director & Senior Backend Architect Transforming Legacy Systems into High-Performance Cloud Solutions

Contact Me LinkedIn Remote / Colombia
JuanPa Profile

Technology Director and Senior Backend Architect with a relentless drive for system optimization and performance. I specialize in modernizing legacy workflows, transforming sluggish, outdated applications into robust, highly efficient cloud architectures. Highly adaptable and framework-agnostic, I rapidly master new technologies and leverage AI-augmented workflows to accelerate development cycles and deliver scalable solutions. Whether optimizing complex database queries or engineering high-concurrency microservices, my focus is on building resilient systems that eliminate bottlenecks and drive measurable business growth.

Architecting Solutions Trusted By

Technical Expertise

Backend & Frameworks

C# / .NET 9 PHP RESTful APIs .NET Channels

Architecture & Design

Microservices Event-Driven Design High-Availability Legacy Modernization

Cloud & Infrastructure

AWS Lambda EventBridge Serverless Docker

Databases & Tools

SQL Server PostgreSQL DynamoDB AI-Augmented Workflows

Professional Experience

Director of Technology / Senior Backend Developer

Present
Healthcare Cloud ERP Sector
  • Architected and developed a comprehensive Cloud Medical ERP, engineering automated data ingestion pipelines for laboratory equipment and real-time result distribution via WhatsApp and Email integrations.
  • Engineered high-concurrency solutions for Electronic Medical Records (EMR), implementing an auto-save feature using .NET Channels to efficiently process massive request queues and prevent database overloads.
  • Enforced robust database security and performance standards, optimizing data access layers and strictly implementing parameterized queries to eliminate SQL injection vulnerabilities and handle heavy transactional loads safely.
  • Leading the technical expansion strategy for 7 new international branches, designing a centralized pharmacy warehouse transfer module to support a new distribution center model.
  • Driving legacy system migration and stakeholder alignment, conducting periodic progress reviews with clinical directors and designing the end-user training phase for successful software adoption.

Backend Developer / Integration Engineer

Previous Role
Enterprise Solutions
  • Architected and developed a bidirectional REST API in PHP, establishing seamless data synchronization between a proprietary enterprise ERP and HubSpot CRM.
  • Automated critical sales and financial workflows, programmatically generating quotes, invoices, and deals to streamline cross-departmental operations and reduce manual data entry.
  • Optimized data retrieval reliability, engineering custom application-level sorting logic for quote processing to bypass native CRM API search endpoint limitations and ensure data integrity.

Leadership, Content & Products

Published Author & Mentor

Technical Literature & TikTok

Creating educational tech content on TikTok aimed at Junior developers. Published author advocating for the strategic importance of technical English in the software industry.

Tech Content View Book

Founder & Lead Developer

Full-Stack POS System

Architected and deployed a comprehensive Point of Sale system used in a live commercial restaurant. Engineered end-to-end workflows integrating real-time orders, automated kitchen printing, and virtual menus.

Product Planner

EdTech Mobile MVP

Leading requirements and architecture design for a mobile MVP focused on teaching technical English to software developers using tech presentation fragments and AI integrations.