About

A senior developer, architect and team lead in one.

Code Instinct is a one-person studio. That means you shape your project directly with the person who designs, builds and ships it.

Marc Janga, founder

I’m Marc Janga, founder of Code Instinct. I grew up in Curaçao, studied Computer Science in Utrecht, and have been building apps professionally since 2010.

I started out making iOS and Android apps for Dutch non-profits such as the Dutch Cancer Society (KWF). At Accenture Interactive I spent almost seven years building apps for large brands, first as an iOS developer and later as a solution architect. Since then I have worked on products where software meets hardware: at Proxy, a San Francisco startup later acquired by ŌURA, and at a European EV-charging company, where I lead the mobile engineering team behind the apps and embedded APIs for electric-vehicle chargers.

Code Instinct is where that experience goes into two things: projects I shape with clients, and products I craft myself. I work in English, Dutch, Spanish and Papiamentu, for clients in the Netherlands, the Caribbean and beyond.

Track record

15+ years across agencies, startups and hardware.

  1. 2023 – now

    Team Lead, Mobile Engineering

    European EV-charging company

    Sets vision, coding and quality guidelines for the mobile division; KMP + CMP migration of a live iOS + Android app.

  2. 2022 – now

    Senior iOS / Embedded API Engineer

    European EV-charging company

    iOS apps, embedded APIs for EV chargers, phone-to-charger data transfer; its home charger won an independent industry benchmark in 2023.

  3. 2020 – 2022

    Senior iOS Developer

    Proxy (acquired by ŌURA), remote

    iOS apps and SDKs, wireless data transfer between devices, CI/CD.

  4. 2016 – 2020

    Solution Architect

    Accenture Interactive

    API and mobile architecture, third-party integrations, translating complex tech for clients.

  5. 2014 – 2020

    iOS Developer

    Accenture Interactive

    iOS apps for clients, Jenkins CI/CD, led development teams.

  6. 2012 – 2013

    Web & iOS development intern

    MobGen

    iOS and Android apps; hand-gesture interaction with Leap Motion.

  7. 2010 – 2012

    Mobile App Developer

    Conclusion

    iOS and Android apps for non-profit and government clients, including KWF.

  8. 2008 – 2014

    Freelance developer

    Self-employed

    Websites for student groups, iOS and Android apps for small businesses.

Skills

  • Swift
  • SwiftUI
  • Objective-C
  • Kotlin Multiplatform
  • Compose Multiplatform
  • Flutter/Dart
  • PHP/Laravel
  • JavaScript
  • Python
  • REST
  • GraphQL
  • Firebase
  • Fastlane
  • Bitrise
  • Codemagic
  • GitLab CI
  • CircleCI
  • Claude Code
  • Augment Code

Credentials

  • BSc Computer Science (Technische Informatica), Hogeschool Utrecht
  • PRINCE2 Foundation
  • Scrum and SAFe

Start a project

Have an idea, a stuck project or an app that needs a second life?

Let’s talk. The first call is always free.

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