Senior Mobile App Developer (Hybrid) - Firefly Wallet

Engineering · Remote, Germany
Department Engineering
Employment Type Full-Time

Senior Mobile App Developer (Hybrid) - Firefly Wallet

Introducing Firefly 

Firefly is the official wallet for the IOTA cryptocurrency. Firefly’s goal is to simplify digital asset management to the point where cryptocurrency can achieve mass adoption. Firefly Desktop has already been released ( with industry-leading security and a delightful user experience. We are now building a mobile app (Firefly Mobile) and a web extension (Firefly Web).

As a Senior Mobile Developer you will be working on Firefly Mobile. You will be instrumental in unlocking the full potential of web3, by building one of the best mobile wallet user experiences for a cryptocurrency that has no fees. Over the coming months we will be introducing interesting features like NFTs, ERC20 tokens, decentralised voting and more. 

Firefly Mobile is written in a mixture of JavaScript/TypeScript, Rust and native iOS and Android (via Ionic Capacitor). 

As a Mobile Developer in the Firefly Team, you will: 

  • Be part of an ambitious, self-organising agile team
  • Build a world-class user experience in a novel industry
  • Develop applications used by hundreds of thousands of people
  • Be actively involved in setting product and technical direction

Your Experience

  • Solid experience developing mobile apps for iOS and/or Android
  • Experience developing cross-platform mobile apps (e.g. Capacitor, React Native, Flutter)
  • Experience with JavaScript and TypeScript
  • Front-end experience in frameworks such as Svelte, React, Vue.js, Angular
  • Enthusiasm for building a great user experience

Bonus Experience

  • Experience working with smart contracts
  • Experience working in fintech 
  • Experience with the Rust programming language
  • Experience working with open-source software

What we offer

  • The opportunity to work with the brightest minds in the industry
  • A culture of trust, empowerment and support
  • A flexible organization with a flat hierarchy
  • Independence and responsibility from day one

The IOTA Foundation is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all our employees.

IOTA Foundation’s Mission


The IOTA Foundation’s mission is to drive the development and adoption of the IOTA protocol. IOTA is a distributed ledger offering a novel alternative to blockchain that is scalable, feeless and lightweight. We are a not-for-profit organization headquartered in Berlin with our team distributed around the world. We work alongside businesses, governments, developers and academic institutions to bring IOTA’s vision to reality.

Thank You

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  • Location
    Remote, Germany
  • Department
  • Employment Type