JavaScript Engineer

Nethone

Warszawa

Type of work

Undetermined

Experience

Senior

Employment Type

B2B

Operating mode

Office

Tech stack

JavaScript

advanced

ES6

regular

ES5

regular

Webpack

nice to have

Selenium

nice to have

Job description

Online interview

We are looking for a JavaScript Developer for the Profiling Team with at least 2 years of experience as a JavaScript or Full-stack Developer. You will be developing a state of the art fraud detection JS library utilizing cutting edge web technologies with a strong emphasis on reliability, security, and performance. You will analyze and fingerprint device characteristics, network environment, and user behavior to detect bots, anomalies and prevent fraud before it happens.

You will be expected to:

take ownership of the code, its architecture, style, and future direction
deeply understand the technologies you work with and be able to use them in unconventional ways
dig into mysterious behavior of experimental browser technologies
write reliable and maintainable code capable of running on a wide range of browsers
write efficient code and profile its performance ensuring its capable of running on low-end devices and in bad network conditions
provide rock-solid behavior of your library in a third party environment outside your control
provide automated tests of your code

Requirements:

JavaScript (ES5/ES6)
Deep understanding of web, browser and JS technologies
at least 2 years of professional experience

Requirements nice to have:

Webpack
Selenium
Another programming language