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Maicol Fariño

Software Engineer · Full Stack · Mobile & Web

I'm a versatile Software Engineer who understands every layer of the stack — from frontend interfaces and mobile apps to backend architecture and DevOps pipelines. I design clean, testable systems that solve real-world problems.

Let's build something great together

10+ Years Experience
50+ Projects Delivered
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About Me

Engineering end-to-end solutions

I'm a Software Engineer who has worked across the entire software lifecycle — from pixel-perfect frontend interfaces and mobile applications to robust backend architectures and cloud infrastructure. Currently I'm contributing to European mobility and traffic projects, but my experience spans AI integrations, e-commerce platforms, real-time systems, and enterprise dashboards.

I believe great software is built at the intersection of clean code, user experience, and solid architecture. Whether it's designing agentic workflows with LLMs, building microservices with NestJS, or crafting responsive UIs with React — every line I write is kept testable, scalable, and maintainable.

Full Stack AI & LLMs Mobile & Web Clean Architecture

Languages

Spanish — Native English — B2 Intermediate
Experience

Where I've made an impact

Senior Software Engineer — Full Stack R&D

2025 — Present

Etra I+D · Valencia

Leading R&D across the entire technology stack for world-class European traffic and mobility projects. Architecting scalable systems that process real-time data — from desktop analytics platforms and web scraping pipelines to mobile applications and responsive web dashboards used by traffic operators across Europe. Working with Angular, SASS, Docker, and hexagonal architecture in agile Scrum teams.

Full Stack Real-time Systems GIS Web Scraping Desktop Apps Mobile

Senior Frontend Developer — Angular

Oct 2024 — Mar 2025

Domain Logic SL · Madrid

Part of a team of 4 senior developers building mission-critical frontend systems for national security projects. Improved code practices through reviews and testing, promoted agile Scrum workflows, and delivered high-performance Angular applications with SASS following DDD and hexagonal architecture principles.

Angular TypeScript Security RxJS Accessibility

Senior Frontend Developer

Apr 2022 — Apr 2023

Overgroup SAS · Remote

Led frontend development for enterprise web applications using React and Next.js. Managed a team of three developers with Jira and Scrum methodology, optimizing workflows and continuously improving development practices for pixel-perfect interfaces delivered with SASS and Figma.

React JavaScript UI/UX

UI/UX Designer & Senior FullStack Developer

Apr 2021 — Aug 2022

4to Ángulo · Remote

Responsible for frontend development and UI/UX design using React, creating interactive interfaces and Odoo integrations for business management. Implemented Docker containers for dev and production, used Kubernetes to orchestrate microservices deployments, and established a code review policy that significantly improved internal quality processes.

GIS Leaflet PostGIS Real-time Data Traffic APIs

Freelance FullStack Developer

Jan 2019 — Jan 2024

Workana & Independent · Remote

Multifaceted freelance developer specialized in React, Next.js, React Native, Ionic, Angular, NestJS, Google Apps Script, Laravel, SASS, PHP, WordPress, and Python. Led and collaborated on multiple projects with a focus on UI design using Figma and Adobe XD. Deployed and managed cloud applications using Azure and Kubernetes.

Node.js PHP REST APIs WordPress

Frontend Developer

Oct 2021 — Sep 2022

Gamification Project · Freelance

Developed the frontend with React for a workplace gamification application. Designed a landing page with WordPress to capture the essence of the product. Combined modern JavaScript with Node.js to deliver an engaging user experience focused on productivity and team engagement.

React UI/UX Figma CSS

Frontend Developer

Jan 2017 — Jun 2018

Nelumbo Consultores · Cúcuta, Colombia

Built responsive websites and interactive user interfaces with React and Angular. Created efficient, accessible frontend solutions optimizing performance and user experience. Contributed to project success while collaborating in agile teams.

HTML/CSS JavaScript WordPress jQuery

WordPress Developer

Jan 2018 — Jun 2019

Freelance

Created and customized advanced WordPress themes and plugins for clients across multiple market sectors. Delivered versatile, efficient solutions with HTML, CSS, JavaScript, and PHP — building a strong foundation in web development and client communication.

WordPress PHP JavaScript Google Maps API
Selected Work

Projects that matter

Unmetrocuadrado real estate web platform developed by Maicol Fariño
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Unmetrocuadrado

Real estate platform with modern property listings and search.

React JavaScript UI/UX
Outs business solutions website by Maicol Fariño
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Outs

Business solutions website with custom WordPress integrations.

WordPress PHP CSS
Arquiboutique architecture boutique brand website
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Arquiboutique

Architecture boutique brand website with elegant design.

WordPress UI/UX JavaScript
Patricio professional portfolio website
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Patricio

Professional portfolio website with custom theme development.

WordPress PHP CSS
Jakas Arquitectura architecture firm website
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Jakas Arquitectura

Architecture firm website showcasing projects and services.

WordPress JavaScript Responsive
INTER B ADVISORS financial advisory website
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INTER B ADVISORS

Financial advisory firm website with professional branding.

WordPress PHP CSS
iMoney financial services platform
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iMoney

Financial services platform with modern web presence.

WordPress JavaScript CSS
PlumaPro professional services website
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PlumaPro

Professional services website with clean design.

WordPress PHP CSS
IPAS Games gaming community website
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IPAS Games

Gaming community website with interactive features.

WordPress JavaScript PHP
Biodiversidad Colombia environmental conservation platform
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Biodiversidad Colombia

Environmental conservation platform with rich content.

React JavaScript CSS
Betsweet gaming platform
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Betsweet

Gaming and betting platform with real-time features.

React Node.js WebSockets
Mas que fruta fruterias franchise website
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Mas que fruta fruterias

Fruit shop franchise website with store locator.

WordPress PHP Google Maps
Motivarnos motivational platform
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Motivarnos

Motivational platform with engaging user experience.

UI/UX React CSS
Overoption trading platform
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Overoption

Options trading platform with data visualization.

React JavaScript Charts
Lifestriving Calculadora mobile calculator app on Google Play
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Lifestriving Calculadora

Mobile calculator app published on Google Play Store.

React Native Mobile Android
elviejogarca restaurant website
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elviejogarca

Restaurant website with menu showcase and reservations.

WordPress PHP JavaScript
4To Angulo creative agency website
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4To Angulo

Creative agency website with bold visual identity.

React JavaScript CSS
World Wide Tech Connections tech consulting website
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World Wide Tech Connections

Tech consulting firm website with modern design.

React JavaScript Responsive
Nelumbo Consultores consulting firm website
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Nelumbo

Consulting firm website with professional layout.

HTML CSS JavaScript
DNA Testing Philadelphia medical testing platform with geo-routing
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DNA Testing Philadelphia

Multi-location medical testing platform with geo-routing.

WordPress PHP Google Maps
DNA Testing San Diego medical services website
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DNA Testing San Diego

Medical services site with appointment booking and results portal.

WordPress PHP JavaScript
Cool & Passion brand website with bold visual identity
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Cool & Passion

Brand website with bold visual identity and smooth animations.

WordPress JavaScript CSS
La Despensa de Iñaki gourmet e-commerce platform
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La Despensa de Iñaki

E-commerce platform for a gourmet food business.

WordPress WooCommerce PHP
Capabilities

Tools & Technologies

Languages & Frameworks

  • JavaScript & TypeScript
  • React.js & Next.js
  • Angular
  • Node.js & NestJS
  • PHP & Laravel
  • Python, Go, C/C++, C#
  • Java & Spring Boot

Web Development

  • HTML5, CSS3, SASS
  • WordPress & WooCommerce
  • jQuery, JSX, Tailwind
  • Responsive Design
  • Accessibility (a11y)
  • SEO & Performance

Frontend

  • React, Next.js, Redux
  • TypeScript & JavaScript (ES6+)
  • CSS / SCSS / Tailwind
  • RxJS & State Management
  • HTML5 & Accessibility
  • Responsive & Mobile-First Design

Backend

  • Node.js, Express & NestJS
  • Python & Go
  • REST & GraphQL APIs
  • Microservices Architecture
  • Serverless & WebSockets
  • Google Apps Script

Data & Storage

  • PostgreSQL & PostGIS
  • MongoDB & Firebase
  • Redis & Data Modeling
  • ETL Pipelines
  • Google Cloud & Azure
  • Real-time Data Processing

DevOps & Integrations

  • Git, GitHub, GitLab, Bitbucket
  • Docker & Kubernetes
  • CI/CD Pipelines
  • Twilio & Microsoft Azure
  • OpenAI & Firebase APIs
  • Cloud Deployment

Mobile & Testing

  • React Native & Expo
  • Ionic Framework
  • Flutter & Dart
  • Android (Java/Kotlin)
  • Cypress & Selenium
  • Unit, Integration & E2E Tests
Get in Touch

Let's build something great together

Whether you need a new web platform, a mobile application, an AI-powered solution, or a scalable full-stack system — I'm ready to jump in and deliver.