EST. 2003Español--:--:-- CST

Ernesto Vizcaíno

Full-Stack AI / Product Engineer

I build AI products and full-stack software from first idea to production. My work spans fintech, SaaS, mobile apps and applied machine learning, with a focus on useful products and measurable outcomes.

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Experience

I take products from first idea to production, combining engineering, product strategy and a close view of how people actually use the software.

Jan 2026 — Present
Founder / Product Engineer atKashi
Designed and built an offline-first mobile and web POS for small businesses, owning product strategy, architecture, inventory, sales, customer credit and cross-platform subscriptions.
Apr 2026 — Present
Founder / Product Engineer atPasaEGEL
Built a revenue-generating exam-prep SaaS from scratch. Reached 300+ users, more than 5,000 monthly visitors, more than 130 paid orders and top-five Google rankings without paid ads.
Oct 2025 — Jan 2026
AI Engineer / Founding Team atFinanciamiento Inteligente / Xignus
Built a credit pre-approval model that helped SMBs access more than $4M MXN in its first month, plus AI agents and React/Python financial dashboards.
Jan 2024 — Jul 2025
Technical Co-Founder atOliver AI
Led a full-stack fintech platform and production AI workflows for loan origination, risk, compliance and document analysis, backed by AWS and product analytics.
Aug 2021 — Dec 2023
Founder / Engineer atOliver POS / ERP
Shipped a POS mobile app to 10,000+ downloads and 3,000 active users in three months, then expanded it into a full web ERP.