Ian Valdez

Español

Sales and marketing background, hands-on Python automation, web development and Playwright QA. I find where a business loses customers or time, then build and test the fix. English and Spanish.

Work with me on Freelancer · Upwork

Projects

Internal project

Website contact auditor

Python + Playwright system that checks, on an emulated phone, whether a business website's contact paths work (WhatsApp, phone, email, SSL). Ran on 217 sites in Guatemala; 22 broken paths found. Six classes of false positives fixed with tests before reporting anything.

Verified result: 22 broken contact paths on 17 of 217 sites, plus 2 invalid certificates; every finding verified on the live site.
Limitations: It finds broken sites, not buyers: owners contacted so far have not replied yet. Guatemala-specific rules (+502).

Web tool

ISCV Guatemala

Turns the official 2026 vehicle-tax table from Guatemala's tax authority (a 97-page PDF, 8,422 vehicles) into a fast mobile search. 84,220 values validated against the official rule with zero discrepancies, plus manual spot checks. Static frontend with automated QA.

Verified result: 0 discrepancies across 84,220 values; table amounts shown exactly as published, never recomputed.
Limitations: Independent site, not affiliated with SAT. The reduction estimate uses publicly reported minimums.

Open live

Interactive concept · fictional brand

ORIGEN

Scroll-driven story site: a coffee bean travels from harvest to cup. Custom motion system with no libraries (JS under 40 KB, zero external media, code-generated frames), responsive, measured at 60 fps. Fictional brand; a technical showcase.

Verified result: 19.4 KB of JavaScript, 0 media files, CLS 0, 60 fps on a normal computer.
Limitations: With the CPU slowed 4× it runs at 35–53 fps depending on the session; the 55 fps target was not met. Not a client project.

Open live

Internal software + research

AI Business OS

In-house Python/SQLite system that orchestrates AI agents (Claude, Codex) to research business opportunities, run a sales pipeline with anti-spam rules, and log results in an append-only history. Includes data pipelines, browser automation and a paper-trading lab with pre-registered rules.

Verified result: 1,300+ automated tests. It caught its own errors (false positives, an inflated estimate, an unsourced statistic) before they reached anyone.
Limitations: It has generated no revenue. Private: it holds business data.

No client case studies yet: these are my own projects, labeled as such. Built with AI coding agents as tools; every result above was verified.