Senior Ruby Fintech Developer

Who we are
As a software consultancy, we build products that solve real problems.
Whether it's starting from scratch or working alongside your existing development team, we bring the startup mentality that gets stuff done. Every day.
Since YND’s founding in 2014, we have delivered more than 50 successful projects from MVP building and mobile apps to complex system integrations and web applications for some of the largest players in Europe. Among them are big names like Volkswagen, Hypoport, Lufthansa and Burger King as well as fast-growing startups like Kayak and orderbird.

About the role
As a Frontend Engineer at YND, you will actively participate in software product delivery and work closely with our experienced engineering teams.
In this role you will:
Work on building modern interfaces and frontend logic for mission-critical features in the products
Build mobile and web optimized user flows
Propose the best technical solutions and influence the product shape
Effectively work within a team of other frontend engineers, backend engineers as well as Product, UX, QA peers

Expectations
Proven experience as front end developer with excellent knowledge of JavaScript / TypeScript, CSS, HTML
Demonstrable experience with ReactJS
Basic understanding of Babel compiler
Experience with CSS-in-js solutions like styled-components
Practical knowledge and understanding of React State Management libraries like Redux, MobX
Knowledge of the module bundlers (Webpack, Parcel, etc.)
Experience with Unit and Components testing (jest, react-testing-library, or equivalents)
Knowledge of the RWD approach
Proactive approach for suggesting, researching, and finding solutions to the problems
Creative with attention to details always looking for an opportunity to make things better
Good command of English written and spoken

Nice to have
Strong knowledge of TypeScript
Knowledge of Redux-saga
Experience with GraphQL
Knowledge of SSR, practical experience in Next.js or Gatsby
Experience with React Query or other similar fetching and caching tool
Understanding of UI design principles
Backend technologies & frameworks knowledge (Node.js, Express.js, Ruby)
React Native experience

What we offer
Competitive salary on B2B contract based on your skills and experience
Flat hierarchy and quick decision making
Remote work and flexible working hours
For those who prefer to work from the office: an excellent office location with astonishing views (Metro Politechnika Station) and as much coffee, drinks, cakes, etc. as you like.



You will be part of an international team where you can use your creativity and enjoy a fun working environment. If communication in English and GIFs, flat organization structure, and permanent challenge make you feel like a kid in a candy store - let us know about yourself and apply!

We're a Digital Product Studio based in Berlin and Warsaw. 

We're a team of experienced designers, engineers, and product managers that loves digital building products.
We help our partners build tech products. Our clients include airlines, international travel brands, banks, and financial services. 

We also build and launch our ventures, like a privacy-focused messenger, AI for the automotive industry, a VR content creation platform, and many more… We make products, not concepts, and presentations. If you're into solving real problems, YND might be the place for you!