Founded in 2010, we are technology-driven firm that develops an ultra low latency trading platform and research environment to support trading in US eqities and futures.
2 января 2019

Middle/Senior JavaScript Developer


Необходимые навыки

Cryptto is a fintech start-up creating a cross-platform application with the potential to rapidly reach tens of millions of users globally. Cryptto aggregates crypto exchanges and blockchain wallets, allowing users to send orders to any crypto exchange and automatically track their entire portfolio, while also providing a range of additional functionality, such as price monitoring, news, alerts and other.

Cryptto is backed by Atto Trading Technologies LLC — a dynamic, technology-driven firm supporting a quantitative trading operation across a wide range of financial markets. Founded in 2010, Atto is an emerging competitor and one of the pioneers in quantitative investment management with a track record of consistent profitability under varying market conditions.

We are looking for Middle/Senior JavaScript Developer to join an existing team

The ideal candidate:
• strong knowledge of JavaScript for both back-end (Node.js) and front-end applications
• good understanding of asynchronous programming model and design patterns
• good knowledge of Python for back-end task
• understanding of the principles of databases and knowledge of SQL
• client/server experience with WebSocket
• understanding of the npm, gulp, webpack
• good understanding of APIs (ws, REST, JSON, CORS, Security)
• experience with Git

Будет плюсом

Would be an advantage:
• experience with Docker
• proficient understanding of Vue.js or similar frameworks (Angular, React)
• good understanding of HTML5/CSS3
• running distributed apps in the cloud
• Crypto Exchanges API
• experience creating of SPA, PWA
• experience building IOS/Android or hybrid apps
• experience with Docker
• experience with NoSQL and column-oriented databases (Click House)
• testing written code
• familiar with JIRA/Confluence


What we offer:
• interesting and challenging tasks
• high level compensation (discussed individually at the interview, according to skill level)
• annual discretionary bonus
• timely payment of wages (dollar peg)
• democratic banking policy — you can cooperate with us through any legal Ukrainian bank you choose
• paid vacation and sick leave
• ergonomic tables (for sitting and standing)
• food (lunch, tea, coffee, etc.)
• table tennis
• fun corporate events
• official registration of labor relations
• flexible work schedule (40-hour work week)
• office in the Center, the station is Pecherskaya (5 min walk)


• develop API server connecting mobile clients with back-end services
• create write and support scripts to collect process and store data from public APIs
• closely communicate with front-end & back-end teams
• help implement front-end features in Vue.js APP
• write maintainable, readable and reusable code
• support and improvement of existing solutions
• develop new user-facing features for a product millions of people will be using
• responsible for the creating a product that should work and feel great on every platform and device

О проекте

About the project
Cryptto app allows users to trade on any exchange they have an account on and automatically track their entire portfolio from a single intuitive Robinhood-like interface, seamless across web and mobile.

We achieve it by developing connectivity to all major crypto exchanges and blockchains, mobile-first development and relentless focus on optimizing UI and UX.

There are already 20 to 40 mln of crypto exchange users who on average have 3 to 5 accounts on different exchanges + multiple private wallets.

We provide an opportunity to use a single app with intuitive UI and seamless experience on any device, instead of 10 different apps they are currently using.

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