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David Jardón PeinadoDJ

David Jardón Peinado

Senior iOS, Android and KMP Developer

€360/day
8 projects
Madrid, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About David

⚡ TECHNICAL LEADERSHIP, DEVELOPMENT AND TRAINING
With over 14 years of experience, I have led mobile development teams and projects, and designed custom training programs for companies such as Inditex, Banco Santander, BBVA, Telefónica, Bankinter, Adif, Mutua Madrileña, Ilunion, KnowmadMood, Public Administrations, and multiple startups.

🚀 MOBILE TECH LEAD
I bring a strategic and technical vision, coordinating multidisciplinary teams and ensuring quality and deadlines at each project phase. I get involved from planning to maintenance, technically guiding the team and facilitating fluid communication between design, product, and development.

🤖 ANDROID AND KOTLIN MULTIPLATFORM (KMP) EXPERT
With solid experience in Kotlin and Java, I work with technologies like Flow, Coroutines, Ktor, Room, Koin, and NavGraph, under modern architectures (MVVM, UseCases, Repositories). I develop cross-platform solutions with KMP, optimizing shared code without sacrificing native experience on Android and iOS.

🍏 IOS DEVELOPMENT WITH SWIFTUI
I have developed and led iOS projects in Swift, SwiftUI, and Objective-C, using various architectures. I master new APIs like Swift Concurrency (Async/Await) and integrate unit tests to ensure maintainability, performance, and scalability.

🎓 TRAINING AND MENTORING
I provide specialized training in mobile development (Android & iOS), adapted to the profiles and objectives of each company, from basic courses to advanced bootcamps. I also support junior and mid-level developers in their growth within the team.

🎯 VISION, COLLABORATION, AND RESULTS
I am passionate about taking on challenges and delivering real value. I enjoy leading technical initiatives, improving processes, and creating collaborative environments where each member can grow. My focus: building strong teams, paying attention to details, and achieving excellent products.
  • English

    Conversational

  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Dust Summit
    CEO - Senior iOS and Android Developer
    SOFTWARE PUBLISHING
    October 2021 - December 2025 (4 years and 2 months)
    Senior mobile application developer for Android and iOS. Development, consulting, and management of mobile application development projects. Also maintenance of both Android and iOS projects.

    Working on iOS with Swift and UIKit or SwiftUI and on Android with Java or Kotlin.

    -- SOFTWARE --
    Backend, web, and mobile development necessary to deliver the product you need.

    -- CONSULTING --
    Experience and ability to face any challenge, contributing experience and knowledge.

    -- TRAINING --
    Custom training tailored to your needs, from basic to expert level in mobile.
    Android iOS Team Management Project Management Team Leadership
  • Keepcoding
    iOS & Android Trainer
    EDUCATION AND E-LEARNING
    April 2019 - Today (7 years and 2 months)
    Trainer for the Swift module, Data Persistence, and continuous integration with Fastlane in the Fullstack Mobile Development Bootcamp.
    Kotlin Swift Android iOS Fastlane
  • Openbank
    Associated Manager iOS
    BANKING AND INSURANCE
    January 2024 - May 2024 (4 months)
    Madrid, Spain
    Team and project management for mobile development in iOS
    iOS Development Team Management SwiftUI Swift Xcode Atlassian JIRA Git GitHub

Reviews

5.0

Out of 5 ratings

A

Arantxa

Mobile One2One, S.L.

Several weeks project

-

Reviewed on 7/24/2025

We collaborated with David on an Android project, and the experience was extremely positive. From the beginning, his technical skills were evident, he showed great willingness to collaborate, maintaining clear and constant communication, which facilitated smooth and effective coordination throughout the project. On a technical level, his work has been impeccable. For all these reasons, we would recommend David for future projects.
AD

Account deleted

Reviewed on 4/20/2019

Great professional, who has carried out a rather long project with great taste and perfect results. If I need someone trustworthy for future projects, I will definitely count on their services again.

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Education

  • Degree in Business Administration and Management and Technical Engineering in Management Information Systems
    Rey Juan Carlos University
    2011
    Proyecto de Fin de Carrera: Aplicación Android basada en el metro de Madrid. La aplicación Madrid Subway permite cálculos de rutas, crear favoritos y consultar planos de metro. (Disponible en el Market de Android) Calificación del proyecto: 10.0
  • Master's in Cross-Platform Application Development
    CICE
    2013
    - Diseño y desarrollo de aplicaciones móviles en Android, iOS, HTML5, JavaScript, jQuery Mobile, Flash Builder y CSS3. - Creación de aplicaciones multiplataforma y nativas utilizando frameworks de Sencha y PhoneGap.

Certifications

  • Android Application Development
    Camilo José Cela University
    2011
    Android SDK Android
  • iOS Application Development
    Camilo José Cela University
    2012
    Objective-C iOS

Skill set

Categories