Cali, Colombia · Working globally

I build digital products that feel clear, fast and human.

Product Engineer & Mobile with 7 years building web platforms, backend services and cross-platform apps. I turn open-ended product challenges into fast, maintainable systems — from polished interfaces to serverless services and offline-ready mobile flows.

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01 Product core clear · fast · human

02Webinterfaces

03APIsservices

04Clouddelivery

05Mobilenative flows

From interaction to infrastructure One product system, engineered end to end.

30 Products & learning projects

15+ Technologies across the stack

7 Years delivering software

B2 Professional English

What I bring

One product mindset, across the entire stack.

I connect interaction design, software architecture and business context to ship experiences that are easier to use and maintain.

Product interfaces

Accessible design systems and responsive product experiences with purposeful motion.

React
Vue
Astro
TypeScript

Scalable services

APIs and event-driven services designed around clear domain boundaries and real operations.

Node.js
Python
AWS
Supabase

Mobile products

Native and cross-platform flows that turn complex processes into focused mobile experiences.

React Native
Expo
Flutter
Swift

Selected work

Products built for conversations, operations and everyday decisions.

Explore production platforms and hands-on studies spanning modern frontend, serverless backend and cross-platform mobile engineering.

Showing 9 of 30 projects

01Frontend

Selected work

Assignar Operations Platform

Workforce and field-operations platform delivered across a modern React client and Python/Django REST and GraphQL services.

02Frontend

Selected work

Assignar Pay Web

Multi-tenant SaaS workspace for forms, scheduling and field operations, built with server-first web patterns and secure data access.

03Backend

Backend service architecture code preview

Selected work

Assignar Core API

Serverless core services exposing operational capabilities through AWS Lambda, event-driven integrations and resilient data access.

04Backend

Assignar DB Manager

Versioned database migration tooling for safe tenant schema evolution, repeatable upgrades and contextual change tracking.

05Mobile

Selected work

Assignar Pay Mobile

Cross-platform companion for submissions and field workflows with offline-ready data, secure authentication and shared product modules.

06Mobile

Selected work

Assignar Fieldworker

Field operations app bringing assignments, forms, timesheets, dockets and site workflows to crews on iOS and Android.

07Frontend

Selected work

Keybe V6

Multi-channel workspace for AI-assisted conversations, CRM, campaigns and sales funnels.

08Frontend

Selected work

Biky

Configuration platform for AI assistants, capabilities, personality and visual identity.

09Frontend

Selected work

Keybe Flows

Visual automation builder for conversational flows and third-party integrations.

Experience

A career built close to users, teams and production.

From workforce operations and fintech workflows to AI-centered communication products, each role expanded my product ownership, technical leadership and production impact.

Product Engineer & Mobile · Fullstack developer

Assignar

Own product capabilities end to end across web, backend and mobile — modernizing high-traffic workflows, strengthening service quality and accelerating delivery through AI-assisted engineering, CI/CD and AWS observability.

Aug 2024 — Present

Fullstack & mobile developer · Frontend team lead

Keybe

Led a five-person frontend team and helped evolve real-time AI conversation products across web and Flutter — introducing hexagonal boundaries, modular React frontends and measurable Core Web Vitals gains.

Sep 2021 — Jul 2024

Backend developer

Colegium

Shipped event-driven microservices and production integrations for an education platform serving 500+ schools, improving reliability through RabbitMQ workflows and focused incident response.

Jan 2021 — Sep 2021

Fullstack developer

PCA Ingeniería

Owned discovery-to-deployment delivery for 8+ custom web and mobile products, building REST APIs and operational dashboards that halved time spent processing business data.

Jun 2019 — Dec 2020

Fullstack developer

Créalo Digital

Turned client requirements into production-ready applications and supported adoption through documentation, on-site training and hands-on rollout.

Mar 2019 — Jun 2019

Fullstack developer

JetSet Viajes

Expanded a live travel platform with booking and operations modules, resolving production defects and translating business feedback into adopted usability improvements.

Dec 2018 — Mar 2019

Technology

Tools change. Strong engineering principles travel.

A broad toolkit applied with clean boundaries, measurable performance and maintainable delivery practices.

React Next.js Vue.js Angular Astro TypeScript Supabase Node.js Python Django Serverless Framework AWS Docker Supabase PostgreSQL MongoDB MySQL React Native Expo Ionic Capacitor Flutter Swift SwiftUI Kotlin React Next.js Vue.js Angular Astro TypeScript Supabase Node.js Python Django Serverless Framework AWS Docker Supabase PostgreSQL MongoDB MySQL React Native Expo Ionic Capacitor Flutter Swift SwiftUI Kotlin

Product interfaces

Accessible, responsive products with thoughtful motion and resilient component systems.

React
Next.js
Vue.js
Angular
Astro
TypeScript
Supabase

Services & cloud

Maintainable APIs, event-driven systems and pragmatic infrastructure decisions.

Node.js
Python
Django
Serverless Framework
AWS
Docker
Supabase
PostgreSQL
MongoDB
MySQL

Mobile experiences

Native and cross-platform mobile products with clean, user-centered flows.

React Native
Expo
Ionic
Capacitor
Flutter
Swift
SwiftUI
Kotlin

Let’s build

Have a meaningful product challenge?

Tell me about the product, the team and the outcome you are pursuing. I am open to full-time roles and focused collaborations.

Prefer email? gutierrezmayamiguelangel@gmail.com Write me on WhatsApp