Mike (@mikerb95)CodeByMike
Available · Colombia · Remote

Websites, custom software, AI training, AI assistants and apps for your business

From $250 USD · ready in 3 to 5 days

LiveDobleYo CaféGorillaz MotorbikesToledo Producciones

Fixed price before we start · from $250 USD

Inventory, bookings, payments, e-invoicing or a portal for your customers.

8 hands-on hours · up to 20 people · $1.000.000 COP

Your organization’s processes first, then the tools.

Answers with your real prices and hands the customer to you on WhatsApp

Try it: it’s the chat in the corner of this page.

Android and iPhone · ready in 8 to 14 weeks

Published under your business name, with a panel to manage it.

An AI answers using the published prices. Mike confirms everything.

/01What I do
Practice

I design the architecture that scales your product. And I build it.

5+
Years exp.
20+
Projects
8+
Industries
Now
Building full-stack products with Astro + Next.js and serverless architecture.
Capabilities
  • Scalable architecture · Full-stack
  • REST APIs · GraphQL · tRPC
  • Performance · Core Web Vitals
  • Testing · Unit · E2E · TypeScript
Based in--:--:--local time
Colombia
GMT−5 · Global remote
4.71° N · 74.07° W · Bogotá
Inbound
First response within 24h · Mon–Fri.
Projects evaluated for fit and timing.
Brief
mikerb95
Open source · daily commits
View profile
/02Selected work

Projects in production.

11 projects
  1. 01DobleYo CaféAstro · ReactE-commerce platform, QR-based traceability, and ERP for Colombian specialty coffee (B2C Colombia + B2B/B2C USA). Built with AI assistance under Extreme Programming practices.Astro · React
  2. 02Gorillaz MotorbikesEJS · JavaScriptWebsite for the Gorillaz Motorbikes shop: motorcycle repair, customization, and maintenance.EJS · JavaScript
  3. 03MinimarketHTML · TypeScriptPoint of sale for a corner store, with three surfaces on top of a single domain layer: a desktop app with barcode scanning and keyboard shortcuts, a mobile app for staff, and the table bill customers open by scanning a QR code. Next.js App Router + React + TypeScript.HTML · TypeScript
  4. 04Toledo Producciones WebsiteAstro · TypeScriptWebsite for Toledo Producciones, an event production company in Bogotá: DJ, sound, lighting, laser shows, robotic lights, 4K coverage and drone. Bilingual one-page landing with an admin panel, built on Astro + Turso/libSQL.Astro · TypeScript
  5. 05ResidentialAccessTypeScript · HTMLTypeScript · HTML
  6. 06SlideHubHTML · JavaSlideHub — real-time presentation control system. Spring Boot microservices (Java 21) with multi-screen sync, AI-assisted presenter notes (Gemini + Groq), GitHub repository integration, and Deploy Tutor. Stack: Spring Security OAuth2, Redis, MongoDB, PostgreSQL, Thymeleaf, S3, deployed on Render.HTML · Java
  7. 07GrupofamaroHTML · CSSCorporate landing page for Grupo FAMARO, a Colombian business group operating across three strategic sectors: architecture and design, energy, and specialty coffee. One-page site with section navigation, scroll-driven animation and an English version.HTML · CSS
  8. 08SlideHubHTML · control-systemsSlideHub — real-time presentation control system. Spring Boot microservices (Java 21) with multi-screen sync, AI-assisted presenter notes (Gemini + Groq), GitHub repository integration, and Deploy Tutor. Stack: Spring Security OAuth2, Redis, MongoDB, PostgreSQL, Thymeleaf, S3, deployed on Render.HTML · control-systems
  9. 09joxeJavaScriptManagement system for a salon and barbershop, split into separate portals: admin panel (calendar, CRM, register, staff, services and blocks), customer booking, on-site check-in, a staff portal and a barbering academy. React served as a static site backed by API functions, installable as a PWA.JavaScript
  10. 10capacitaciones-iaHTMLHTML
  11. 11antidotoTypeScriptTypeScript
/03How I work

A four-step process, calibrated to your pace.

  1. /01Wk 1–2

    Diagnosis

    Two weeks listening - every flow, every spreadsheet, every workaround.

  2. /02Wk 3

    Architecture

    Mapping product decisions. What is critical vs. cosmetic.

  3. /03Wk 4–8

    Prototype

    Real React, real data, real constraints. Tested with end users.

  4. /04Wk 9+

    Ship & mentoring

    I build alongside your team. I leave them a system they can scale.

/04Technical expertise

Scalable Architecture

I design distributed, modular systems built to grow. Monorepos, robust APIs, and solid design patterns.

Performance First

Speed is a feature. I optimize Core Web Vitals, API response times, and database efficiency.

Code Quality

Rigorous testing (Unit, E2E), strict static typing, and clear documentation. Maintainable code is profitable code.

/05Live lab
Interactive demo · security

Hall of mirrors:
I recognize you without cookies.

I built a device fingerprinting lab to make visible something almost no one sees: your browser exposes dozens of signals (canvas, GPU, fonts, audio) that together form an almost unique fingerprint. Scan a QR code, join a room, and a live board identifies you without login and without cookies.

The goal? To make you feel it: go incognito, clear your cookies, and come back. It recognizes you all the same. And it ends by teaching you how to defend yourself. A demo that explains privacy and tracking without slides.

Enter the labEphemeral · no PII · rooms are wiped after 2h
Your fingerprint in this browserReading signalsComputed here, on your device. Nothing is sent anywhere. Open it in incognito: it will be the same.
  • Scan and join

    Several devices link to the same room via a QR code - like a classroom or a live event.

  • It recognizes you, it does not log you in

    A custom collector cross-checked against FingerprintJS. Come back incognito and the revisit counter still goes up.

  • Learn to defend yourself

    Ends by explaining why incognito isn't enough and what actually works: Tor, resistFingerprinting, and more.

/06Open source

Latest GitHub activity.

Exploring ideas and building tools in public.