We are looking for an experienced Front End Developer with at least 5 years of industry experience, a solid track record and a passion to work as part of an agile team that creates products at the cutting edge of technology.

General qualifications

5+ years of UI/UX development experience
Good English is a must
Fluent in German
Writing efficient code
Develop new user-facing features
Experience with SaaS products; bonus for developer tools and data-driven visualization
Candidate must have a strong understanding of UI, cross-browser compatibility, general web functions and standards.
Experience with web applications for mobile devices is a big bonus
Experience in planning and delivering software platforms used across multiple products and organizational units.
Maintaining software documentation
Maintaining and expanding/enhancing the web application once built
A strong portfolio that demonstrates a range of UI and Front End and development techniques and achievements
Experience with wireframing and prototyping tools
Excellent attention to detail
The ability to work independently as well as experience in working with teams in a pro-active fashion
The ability to work your way through research & planning stages, figure out all possibilities & handle edge-cases.
Good sense of humor (at times “Viennese sarcasm”) and basic table soccer skills are a plus.

Technical skills

Deep expertise and hands on experience with Web Applications and programming languages such as HTML, CSS, JavaScript, JQuery and RESTful API’s
Deep expertise in at least one of the following JavaScript Frameworks as React JS or Vue.js
Experience with at least one server-side frameworks such as python, ruby, php, Java, ASP, ASP.NET
Deep functional knowledge or hands on design experience with Web Services (RESTful, etc ..) is needed to be successful in this position.
Strong grasp of security principles and how they apply to interface applications.

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 technical experts of various domains (Internal and external)
Directly work with the product manager on the various product streams (digital asset management solutions, car wallet, track & trace solutions etc.)
Directly work with many of the biggest players in various industries: luxury goods, energy, production, banks, and exchanges

Duties & Responsibilities

Determine the needs of end users (various types) of technical and product documentation
Study product and solution and align with PM and developers to identify the requirements of the interfaces to develop
Basic experience to sketch UI prior to development
Work with technical staff to identify technical requirements
Adopt existing CI guidelines
Use photographs, drawings, diagrams, animation, and charts that increase users’ understanding
Test final UI/UX in a structured way before release (with focus to automation)

Candidate is expected to take existing UI/UX requirements and inputs and sketch and develop/program the user interfaces. Work directly with our computer hardware and software engineers and product manager to identify and translate technical-, product- and consumer-related interface requirements. Therefore, you must be able to understand complex information and communicate the information to people with diverse professional backgrounds. Interact with various engineers to plan API and data endpoint integrations. After a product is released, you also may work with customers to improve the end-user experience through product design changes.

Candidate will have to be located in Vienna and work from RIDDLE&CODE office.


The law obliges us to state gross salary guidelines of the collective agreement for this position (at least € 3.139,- p.m. to € 3.565,- for a ST2 rating and 38.5 hours per week or at least € 2.518,- p.m to € 3.048,- p.m. for a ST1 rating and 38.5 hours per week. Rates for free-lance assignments are negotiable based on experience and skills, with certain travel costs being reimbursed.

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

About the company

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, groundbreaking wallet design and technology around identity, integrity and transaction are in the center of our current development efforts. More information can be found at www.riddleandcode.com

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!