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Marc Güell Segarra

Freelance Software Developer with over 15 years of experience, specializing in React and React Native projects.

Catalonia, Spain, CET

LinkedInX
MGS

About

Since my early childhood, I have had fascination for computers in themselves and everything that they can be made to do. Working in IT since 2005. I love mountains, coffee and technology. I've done remote work for agencies, collaborated with large companies and also helped small startups. I'm naturally curious and perpetually working on improving my problem solver skills.

Work Experience

We Agile You, S.L
Contract
Remote

Nov 2024 - Present

Frontend Developer

Barcelona, Spain
Frontend Software Developer specializing in React and TypeScript for planningpokeronline.com and other company projects, including JIRA plugins and apps.

GISCE-TI, S.L.
Contract
Remote

Nov 2020 - Present

Senior Frontend Developer

Girona, Spain
Create and maintain a modular, dynamic Server-driven UI front-end system for the company's main ERP solution.

Editorial Claret
Contract
Remote

Apr 2018 - Present

Full Stack Developer

Barcelona, Spain
Developing React Native application and its serverless infrastructure in AWS. Creating a few company's static websites.

Ondori.dev
Self-employed

Mar 2017 - Present

Freelance Software Developer

Valls, Catalonia

Scopely
Contract
Remote

Jul 2022 - Nov 2024

Frontend Developer

Los Angeles, California, United States
Responsible for developing the front-end of playscrabble.com and its HTML5 game engine.

niikiis
Contract
Remote

Oct 2020 - Feb 2021

Full Stack Developer

Barcelona, Spain
React developer and backend with microservices in AWS stack.

Human Life Technologies, LLC
Contract
Remote

Sep 2020 - Feb 2021

React Native Developer

Massachusetts, United States
Created an iOS extension for React Native to give the company mobile app Caller ID features linked with their CRM.

Opentrends
Contract
Remote

Mar 2017 - Apr 2018

Android Architect and Team Lead

Barcelona, Spain
Led the Android architecture and development team.

NEXIONA
Remote

Jan 2017 - Mar 2017

Front-end Engineer

Barcelona, Spain
Front-end engineer of MIIMETIQ, an IoT/M2M framework designed to simplify the creation of bespoke IoT verticals.

Moddity
Remote

Oct 2014 - Feb 2017

Full Stack Developer

Lleida, Spain
Part of VIKO group, focused on developing transactional mobile apps and offering various e-commerce services.

Tecnocom

Jun 2012 - Nov 2014

Cross-platform Senior Mobility Developer

Tarragona, Spain
Developed mobile applications for a leading Catalan financial institution.

Getronics

Jun 2007 - Jun 2012

IBM Mainframe z/OS Analyst Programmer

Tarragona, Spain
Analysis and development of applications using PL/I and DB2 in a banking HOST environment. Responsibilities included resolving incidents, customer communication, project estimation, software documentation, and team supervision.

Skills

JavaScript
TypeScript
React
React Native
Next.js
Node.js
AWS
Vite
GitHub Actions
SEO
Styled Components
Tailwind CSS
Mobile Game Development
Lambda
DynamoDB
Cloudformation
Amplify
API Gateway
iOS
Objective-C
Android
Java
CSS
Web
S3
Cognito
MongoDB
Angular.JS
Express
Bootstrap
Cloudfront
Route53
Unity
Maven
Github Pages
Clean architecture
Jenkins
Sonarqube
Dexguard
Cordova
Ionic
Developer Tools

Projects

Highlight on Copy

A Visual Studio Code extension that briefly flashes and highlights the selected text that has been copied. This tool enhances the coding experience by providing visual feedback for copy operations.

Visual Studio Code
Extension Development
JavaScript
Text Editing
Developer Tools

Playscrabble.com

Developed a feature-rich online Scrabble game platform. Created reusable React components and libraries, implemented drag-and-drop functionality for tile placement, integrated sound effects, and optimized for search engines. Used Vite for fast development and Next.js.

React
Vite
Next.js
GitHub Actions
SEO
TypeScript
Styled Components
Tailwind CSS

Kotobayama

React Native guess-the-word mountain game. This open-source project combines word puzzles with a mountain-climbing theme, offering a unique mobile gaming experience.

React Native
JavaScript
Mobile Game Development
Word Game
GitHub

Niikiis

Fullstack development services for an HR management Software for small business and companies.

AWS
Lambda
DynamoDB
Cloudformation
Amplify
API Gateway
Javascript
React

BetterLivingPRO

Developed a React Native module for both Android and iOS platforms. The module provides caller id features to an US real estate agency CRM app.

iOS
Objective-C
Android
Java
React Native
Javascript

tombatruites

Custom site for sharing cooking recipes in catalan

Javascript
Gatsby
React
Ghost
CSS
Netlify
Jamstack
Web

Missa de Cada Dia - App

React Native app for Android and iOS. Custom reader for the daily mass, based on geolocation and language. Subscription based business model. Top #1 in its category in Spain.

Javascript
React Native
iOS
Android
Objective-C
Java
S3
AWS
Lambda
Amplify
Cognito
DynamoDB
MongoDB
Angular
Express

Missa de Cada Dia - Web

Landing page for Missa de Cada Dia's mobile app. Help, contact and mass web reader.

Web
Javascript
Bootstrap
CSS
React
S3
AWS
Cloudfront
Lambda
DynamoDB
API Gateway
Route53
MongoDB
Angular
Express

Ringotap

Addictive minimal pixel art game consisting in tapping red apples as fast as you can. Train your reflexes and deactivate apples before they explode.

Unity
Game

Lawliet

Node.js tool for searching broken links in your documentation files.

Javascript
Node.js

Myopic

Custom library for replacing Android app switcher thumbnail with blur or with your customized image overlay

Android
Java
Maven

Personal blog

My own personal blog where I share my thoughts from time to time.

Web
Javascript
Github Pages
Hexo.io
Jamstack

Caixabank

Worked as a solution analyst for CaixaBank's mobility architecture SDK for Android platform. The SDK is used in the top #1 banking app in Spanish markets. Security auditor (APK reverse engineering).

Android
Clean architecture
Java
Node.js
Jenkins
Sonarqube
Dexguard

DiceRoll

An easy implementation of a Telegram bot for rolling the dice made with Node.js.

Javascript
Node.js
Bot

Pudahuel

Santiago de Chile's airport app. Check flight information and subscribe for notifications. QR reader and parking information.

Android
iOS
Java
Objective-C
Node.js
Angular
Javascript
MongoDB
Express
Web

MySEAT

MySEAT connected Car project. Using car data for different driving metrics, graphics, tips, and more

Android
Java

Abaxis VueScan

An app-based solution to veterinary diagnostics, operating right from your iOS mobile device. Abaxis is an American medical technology company from Mountain View, California.

Web
Angular
CSS
iOS
Objective-C

Animalear

eCommerce app with veterinary products. Tinder like application for your pets with geolocation and push notifications. Integrated chat. Admin site

Web
Angular
CSS
Node.js
iOS
Android
Java
Objective-C
MongoDB
Express

CocaCola

CocaCola's promocodes landing page.

Web
PHP
CSS

GProvincia

Touristic app where you can consult a large number of places of interest in the Tarragona province, as well as daily offers in shops, services, bars, restaurants…

Cordova
iOS
Ionic
Javascript
Objective-C

Imprify

Application for creating photo albums, prints and photo collages. Simply, easy to use and with a lovely result.

Android
iOS
Java
Objective-C

Loodi

Mobile app for scheduling and making appointments for padel matches

Android
Java

Marketing4eCommerce

RSS-like reader app for the company news feed

Android
Java

Pans & Company

Mobile app for customer loyalty through offers and discounts for the restaurant chain

Android
iOS
Java
Objective-C

ABA English

English learning course app. Featured by Apple in 2014. Google Play best of 2016: 'Best self help app'. Top #5 Apple AppStore.

Android
iOS
Java
Objective-C

Butifarra

Traditional catalan card game named botifarra. First multiplayer game of its kind in the AppStore, for iPhone and iPad. Reached top #1 in Cards category. In-app purchases and ads.

iOS
Game
Objective-C