Miguel Coleto Muñoz

Miguel Coleto Muñoz

Senior Fullstack & Founding Engineer

Scaling Products from Idea to 500k+ MAUs

Professional Summary

My career is defined by the capacity to act as a Founding Engineer: the individual who builds the core system from scratch and makes it scalable. With 9+ years of experience, I have navigated the complexity of creating hybrid technology ecosystems, combining the high performance of native mobile development (Android, iOS) with the versatility of advanced web platforms (Next.js, React).

My specialty lies in Cross-Platform Architecture and Convergence. I have led implementations of Kotlin Multiplatform (KMP) to maximize shared logic and reduce technical debt. My focus is not just writing clean code, but designing modular architectures that support exponential growth (up to 500k Monthly Active Users) and facilitate investment rounds, such as the $3.4M Seed Round we secured at Tacter.

My Mission: To translate the business vision into robust and profitable technical solutions.

Technology Stack

My expertise is built on a comprehensive command of the stack, from architectural design (Clean Architecture, Modularization) to end-to-end frontend and backend implementation.

Native Mobile

Kotlin, Jetpack Compose, KMP, Swift, SwiftUI

Leadership in high-performance native development. Implementation of KMP for shared business logic and mastery of declarative UIs (Compose and SwiftUI).

Web & Frontend

React, Next.js, TypeScript, Tailwind

Designing state-of-the-art web platforms with Next.js for SEO and performance, ensuring seamless synchronization with mobile clients.

Backend & Data

Node.js, Python, AWS Serverless, Lambda

Experience with serverless systems and microservice architectures, with proficiency in Python and Node.js for critical services.

Architecture & DevOps

Clean Architecture, Modularization, CI/CD, Git

Designing architectures that enable team autonomy and improve developer velocity.

Innovation

AI Agents, RAG Systems, Web3 Integration

Exploration and implementation of cutting-edge features to differentiate the product in competitive markets.

Experience

Oct 2020 – Present

Founding Engineer

TACTER

The Challenge: To build a coaching and strategy platform for gamers from the ground up, as the first engineering hire. The core challenge was creating a multi-platform ecosystem (Web, Android, iOS) that was highly performant and scalable for a global market.

The Impact: Developing a solid architecture allowed us to scale the product rapidly, achieving the milestone of the $3.4M Seed Round and becoming official Riot Games partners.

Technical Focus:
  • Advanced Cross-Platform: Architected the mobile platform around Kotlin Multiplatform (KMP) to share the Business Logic and Data Layer across iOS and Android.
  • Innovation: Participated in the implementation of AI Features (RAG Systems) to offer personalized game recommendations and Web3 gaming integrations.
  • Fullstack: Development of the landing page and user platform using Next.js and React-Native.
  • Leadership: Established initial technical hiring processes and mentored junior engineers.
Feb 2020 – Oct 2020

Senior Android Engineer

JEFF

The Challenge: Integrating multiple business verticals (laundry, fitness, etc.) into a single "Super App." This demanded a total architectural refactoring to support growth and the autonomy of multiple development teams.

Technical Focus:
  • Part of the Core Team that successfully migrated and modularized large segments of the app from Java to Kotlin.
  • Implemented a Clean Architecture that decoupled teams, allowing for independent feature rollouts without affecting the entire ecosystem.
May 2018 – Dec 2019

Android Architect

VITCORD

The Challenge: Redesigning the core architecture of a video content social network looking to scale rapidly.

The Impact: Lead architect responsible for the new Android app in Kotlin, contributing to a platform that reached 500k MAUs and facilitated the securing of $3M across funding rounds.

Nov 2016 – May 2018

Co-Founder & Full-Stack Developer

COME

The Challenge: Co-founded a project to build a complete ecosystem for restaurants.

The Impact: Winners of IDEAS Institute 2k17.

Technical Focus:
  • Led development across the full stack: Kotlin (Android), React (Web), and Node.js (Backend).
Jul 2017 – May 2018

Freelance Full-Stack Developer

PLEASOUND

The Challenge: Building serverless backend infrastructure and mobile applications for a music-tech startup.

Technical Focus:
  • AWS Serverless architecture with Python and Lambda.
  • iOS application development using Swift and UIKit.
Jan 2017 – Jun 2017

Full-Stack Developer Intern

INFOPORT

The Challenge: Maintenance and development of systems for port logistics.

Technical Focus:
  • Worked with Angular, Ionic, and .NET technologies.