We're hiring: Mobile Developer (React Native)(m/f/d, 10–40 hrs/week, 0-100% Remote)

We're hiring: Mobile Developer (React Native)(m/f/d, 10–40 hrs/week, 0-100% Remote)

📌 Note: We strongly prefer applicants who can understand spoken German, as most of our internal meetings are held in German. You don’t need to speak or write it – just being able to follow along is enough.


Filen builds secure, end-to-end encrypted cloud services – private, independent, and with zero backdoors. Since 2020, we’ve been committed to privacy “Made in Germany.”
We’re now looking for a Mobile Developer (m/f/d) to maintain and further develop our mobile app for iOS and Android, which is set to launch soon.


🧠 Who we’re looking for

You're a mobile developer who knows your way around cross-platform apps, native modules, and modern dev stacks? Perfect.

What you’ll do:

  • Maintain and improve our new mobile app (iOS & Android)
  • Build new features, fix bugs, and optimize performance
  • Collaborate with a small, focused team
  • Proactively contribute ideas and take ownership of your work

✅ Requirements

To be a good fit for this role, you should have solid experience with most of the following:

  • React
  • React Native
  • Node.js
  • Expo
  • Swift / Objective-C (iOS native)
  • Kotlin / Java (Android native)

We're looking for someone who’s comfortable working across the full stack of our mobile codebase – both cross-platform and native.
If you're missing one or two of these but are confident you can learn fast, we still encourage you to apply.


🎁 What you’ll get

  • Fair and transparent compensation
  • Work from anywhere – 0 to 100% remote
  • Fully flexible working hours
  • Real ownership and no micromanagement
  • Work on a real product used by thousands
  • Friendly, no-BS team culture
  • Option to join long-term after studies
  • Snacks & drinks at the office if you’re local

This position is open for full-time, part-time, or working students (10–40 hrs/week).


✉️ How to apply

We made it super easy:
👉 Use our Smart Application Tool

No cover letter needed. Just a few clicks and you're in.

Or send your info directly to: marketing@filen.io

Any questions? Get in touch anytime – via email, social media, or support.
Looking forward to hearing from you!

– Team Filen

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