ANDROID Developer

RIDDLE&CODE is looking for an Android Developer with passion for blockchain and crypto technologies. 

Superior:                     Chief Information Officer

Direct Reports:           -

RIDDLE&CODE is Europe’s leading company for blockchain interface solutions. It is one of the few - if not the only company - which has developed its own blockchain based hardware & software products that bridge the digital and the physical world. RIDDLE&CODE offers the opportunity to work at the forefront of blockchain and cryptography products and to expand your skills while driving and developing cutting-edge technology. 

Groundbreaking wallet design, innovative blockchain IOT solutions and technology around identity, integrity and transaction are in the center of our current development efforts.

To make sure that - besides a unique job environment - you’ll have the time of your life RIDDLE&CODE is located in Vienna/Austria which – for the 10th time in a row – has been awarded the city with the best quality of life in the world! ( 


  • Bachelor's degree in Computer Science, Engineering or a related subject.

  • Knowledge of Android SDK, Android Studio and/or appropriate equipment and software.

  • Proven working experience in Android app development.

  • Extensive hands-on experience in creating custom UI controls, designing protocols, implementing interfaces, and performance optimization.

  • Experience working with remote data via REST.

  • Experience with third-party libraries and APIs.

  • Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies.

  • Solid understanding of the full mobile development life cycle.

  • Familiarity with Git source code management.

Who you will work with

  • Work as part of a collaborative team of entrepreneurial people who operate with a young yet globally recognized blockchain technology spearhead company.

  • Work hand in hand with clients functional and technical experts

  • Directly work with many of the biggest players in various industries: luxury goods, energy, production, banks, and exchanges

Duties & Responsibilities

  • Designing and developing advanced applications for the Android platform.

  • Unit-testing code for robustness, including edge cases, usability, and general reliability.

  • Bug analysis and fixing as well as improving application performance.

  • Work from UI/UX requirements, APIs, UML models, and mockups to build functional, high-performance Android phone and tablet apps.

Starting as a team member we plan to expand your responsibilities over time to eventually build up and lead your own project team.


The law obliges us to state gross salary guidelines of the collective agreement for this position (at least € 2,984 p.m. to € 4,006 for a ST2 rating and 38.5 hours per week or at least € 2.393 p.m to € 3.282 p.m. for a ST1 rating and 38.5 hours per week).

We strive to offer compensation that corresponds to your personal qualification, your experience and in line with the current market.

Contact us

We are very much looking forward to receiving your application, please send your CV with Ref: Android Dev, to