Mathieu Clerici, Software Developer in Guadalajara, Mexico
Mathieu Clerici

Software Developer in Guadalajara, Mexico

Member since March 3, 2015
Mathieu is a mobile developer with 13 years of experience programming native and cross-platform apps. He knows Objective-C, Swift, Java, Kotlin, iOS, Android, Xamarin, Xamarin Forms, and React Native frameworks. He also works with common industry standards like GraphQL, REST API, and agile methodology. Mathieu strives to deliver outstanding products by writing high-quality code and following best architecture practices such as design patterns and automatic tests.
Mathieu is now available for hire


  • Toptal
    React Native, TypeScript, GraphQL, iOS, Android
  • Freelance
    Xamarin.Forms, Xamarin, Windows Phone, iOS, Android, C#, .NET
  • iTexico
    Windows Phone, iOS, Android, .NET, C#, Xamarin.Forms, Xamarin



Guadalajara, Mexico



Preferred Environment

Visual Studio, Xcode, Android Studio

The most amazing...

...project I've developed is the Android app for PCR Essentials, a service for helping users plan their research remotely through their mobile device.


  • Head of Engineering

    2018 - PRESENT
    • Worked on personal growth and self-help applications, helping people feel fulfilled while being myself fulfilled at my job.
    • Implemented the whole front end and back end in GraphQL metric tools.
    • Participated in all the processes and ensured that the front end, back end, and everything was going well based on strict KPIs and OKRs.
    Technologies: React Native, TypeScript, GraphQL, iOS, Android
  • Xamarin Team Lead

    2015 - 2018
    • Worked in a freelance capacity on a variety of applications using Xamarin.
    • Developed an application similar to Vine with mobile client-side video encoding, decoding, and playing.
    • Constructed a dating application, personal growth applications, and some nonprofit companies' applications.
    • Developed an event creation, invitation, and management app.
    Technologies: Xamarin.Forms, Xamarin, Windows Phone, iOS, Android, C#, .NET
  • Xamrin Team Leader

    2014 - 2015
    • Developed mobile applications connected to machine learning and generated content from REST and JSON back ends.
    Technologies: Windows Phone, iOS, Android, .NET, C#, Xamarin.Forms, Xamarin
  • Xamarin Team Lead Developer

    2013 - 2014
    • Developed an app for Europe's leading import/export company called Bollore. The app is used on-site to manage incoming and outgoing goods from warehouses.
    Technologies: .NET, SQLite, C#, iOS, Android, Xamarin
  • Analyst Developer

    2012 - 2013
    • Developed back-end infrastructure for a bank system that allowed the bank to connect with loan evaluation services companies.
    Technologies: ASP.NET, Xamarin, C#, Microsoft SQL Server, .NET
  • Analyst Programmer

    2009 - 2011
    • Gained experience in a variety of fields including accounting fundamentals, business plan generation, and budget management tools development.
    Technologies: Windows Forms, Microsoft SQL Server, ASP.NET, VB.NET, C#, .NET


  • T1D Reachout

    A Slack clone application developed for the University of British Columbia, connecting users with type 1 diabetes to share experiences, motivations, and tips.

    The delivery included an API, website, and mobile application for both iOS and Android.

  • Engrafis

    A building entry kiosk application for tablets. The entry process is made safe and easy using a thermal camera combined with a face detection algorithm to check the visitor's temperature.

    The application also automatically prints an entry badge in matters of seconds by scanning and extracting the visitor's driving license, passport, or ID.

  • My Team Channel

    An Android and iOS scheduling app that manages work schedules in real time.

    Users can see their schedule clearly and easily, request and manage shift giveaways, or swap shifts with other coworkers.

    Department heads can see who is working, consult any employee schedule, and manage swaps, giveaway, and time-off requests.

  • Smith Brothers Farms

    An online grocery delivery application where users are able to set up recurring delivery products, apply coupons, browse by category, order and receive them on a weekly basis. The application is available for both iOS and Android users.

  • PCR Essentials

    An iOS/Android application created for molecular biology researchers who conduct research on polymerase chain reactions (PCR) using Xamarin. I was responsible for the entire Android app and was an important team member as well.

  • Econduce

    With the Econduce application, you can book, locate, and turn your nearest scooter on or off using Bluetooth LE protocol. The application is available for both iOS and Android users.


  • Languages

    C#, Swift, TypeScript, GraphQL, Objective-C, JavaScript, Kotlin, Java, Python
  • Frameworks

    .NET, React Native, UIKit, Redux
  • Tools

    Xcode, Android Studio, Visual Studio
  • Platforms

    Xamarin, Android, iOS, Mobile, Meteor
  • Storage

    SQLite, JSON
  • Other

  • Libraries/APIs

    Scikit-learn, Pandas, TensorFlow, Node.js, React
  • Paradigms

    Scrum, REST


  • Bachelor's Degree in Software Engineering
    2009 - 2012
    European Institute of Technology - Paris, France

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