Luis Eduardo Marin Aguilera
Senior Backend Developer
Based in Peru (GMT-5) • Full Overlap with US Business Hours
Currently accepting new B2B contracts & technical partnerships
18 Years of Engineering Resilient Systems
I don't just write code; I engineer business stability. My specialty is bridging the gap between legacy operations and modern cloud architectures. I build systems designed to run autonomously for years—like a custom automation bot I deployed in 2015 that ran uninterrupted for a decade until the external platform changed in 2025. I bring that same level of reliability to Node.js, Python, and Vertex AI integrations.
Problems I Solve
- You need Senior-level architecture decisions without the friction of hiring a full-time executive
- Your high-value employees are wasting 40+ hours/month on manual data entry that a script could do in seconds
- You have valuable data trapped in legacy systems (Excel, SQL) that needs to talk to modern AI & Cloud tools
- You want to integrate AI (Vertex AI/OpenAI) into your workflows but need a robust, production-grade implementation, not just a toy demo
- You need custom Shopify integrations that no plugin can handle
What I Deliver
- Cloud & Serverless Architecture: AWS (Lambda, Step Functions) & Google Cloud (Functions, Pub/Sub)
- AI & Process Automation: Vertex AI integrations, Intelligent Document Processing, and Python scripting
- Legacy Modernization: Migrating Visual Basic/Excel macros to modern Web/Cloud stacks
- Google Workspace Ecosystem: Advanced Add-ons, Drive/Docs automation, and Gmail contextual gadgets
- Shopify Development: Custom apps, themes, and third-party integrations
Tech Stack
What Clients Say
"Luis demonstrated exceptional technical proficiency across multiple projects. His in-depth knowledge of Google Apps Script and Cloud Functions was instrumental in delivering Google Workspace add-ons and Vertex AI integration demos."
"The collaboration demonstrated exceptional technical proficiency and project management capabilities. The delivered Google Workspace widget met all specified requirements and significantly improved our operational workflow efficiency."
"A custom web interface was developed that integrated with our price prediction model, facilitating scenario visualization and accelerating decision-making. The tool was clear, functional and quickly adapted to our internal needs."
"We received a sales and inventory solution fully adapted to our operations, which we used for several years. The automation bot for product registration worked reliably for 10 years. The work was always punctual, effective and focused on solving real business problems."