Software Engineer
Juan Pablo Valenzuela Castro
Software Engineer — Backend, Cloud & AI on GCP | I build and operate production SaaS end-to-end
Projects
SaaS products in production, client systems, and applied ML — built and operated end-to-end.
Explore →Experience
Production backend engineering, distributed systems, and data platforms on Google Cloud.
Explore →Education
Graduate research in applied ML and precision agriculture.
Explore →Contact
Hiring for a backend, cloud or AI role — or need software built for your business? Let's talk.
Explore →For businesses
VALC Tech
Through my independent practice I build and run custom software and SaaS for real companies: WhatsApp appointment booking, POS with CFDI invoicing, produce-sourcing cost control, sports league management. If your business needs software that pays for itself, let's talk.
How I work with businesses →About
Software engineer with 3+ years shipping cloud-native systems on GCP and Firebase. Through VALC Tech, my independent practice, I design, build and operate production SaaS end-to-end: AI agents with GPT function calling, Stripe billing, Mexican CFDI 4.0 e-invoicing and offline-first PWAs, serving real businesses in Mexico. My graduate research applied machine learning to geospatial and multispectral imagery. Open to remote backend, cloud and AI roles — and to a select number of client projects.
Top Skills
Backend & Cloud
AI & LLMs
Product & Payments
Frontend