Michael Liendo Projects
Recent product, AI, and full-stack work; below that, open source, learning projects, and earlier pieces.
Tech lead · Vitrina Online
Nov 2025 – Present · 5 mos
AI customer service on WhatsApp for an online store: first reply went from 7 hours to ~2 minutes and the chat team from 10 to 2–3 people, saving ~US$2,100 a month. Handles payments, shipping and catalog.
Lead developer
Nov 2025 – Present · 5 mos
An AI study platform for math, physics and chemistry, used by 430+ students. I built it solo for web, iOS and Android, with an AI tutor, quizzes and tools for teachers.
Tech lead · Freelance
Jun 2025 – Aug 2025 · 3 mos
A WhatsApp AI assistant that checks payments and tracks cash flow in real time: operations went from 12 people to 3 while serving twice as many customers, with US$2,700 less in payroll every month for about US$150 a month in AI. I led 2 developers through delivery.
Mobile developer · Full-time & freelance
Sep 2023 – Aug 2024 · 1 yr full-time; Mar 2025 · 1 mo freelance
A pet-care app. For a year I built the mobile app, with built-in maps, and the system behind it; later I came back for a freelance sprint of improvements.
Personal project
Browser-based accounting for one or more companies: chart of accounts, journal entries, financial reports and Excel export.
Developer · Freelance
Feb 2025 · 1 mo
Supplier reports in Power BI: on-time delivery, lead times, defects and risk in one place, with AI-written summaries you can also listen to out loud.
Frontend developer · Freelance
Dec 2024 – Jan 2025 · 2 mos
The interface for a cooperative's AI assistant: it answers questions about products, policies and procedures in real time, with a personal sign-in for each user.
Frontend lead · Full-time
Aug 2024 – Feb 2025 · 7 mos
A management system to run inventory, purchasing, sales and finance from one clear interface, built to grow with the business.
A team project to learn Rust: a community platform in the style of Reddit and X, for beginner to intermediate developers.
Rust · Open source · Community
A terminal tool that checks a list of links and records which ones work and which ones fail.
Rust · Terminal · Open source
A chat app with user-created rooms, invite-only access and real-time messages.
Chat · Real time · Open source
A small utility that copies files and folders into a backup folder.
Rust · Backups · Open source
A landing page for a software studio, with a contact section.
Landing page · Web · Open source
An online store with categories, a cart and checkout.
E-commerce · Web · Open source
A personal cloud concept to upload, sync and share files.
Storage · Web · Open source
The school's public website: page structure, layout and connection to its data.
Website · Education
Tell me about it. I reply within a day.