Company’s Description:

Selected as one of the nine most promising startups of 2016 by Geektime, Source Defense is a real time SAAS solution that protects websites from attacks originated from 3rd party scripts. Whether you realize it or not, almost every website relies on dozens of third parties to provide the best experience to end-users, these are used for advertising, analytics, enhancing visual appearance of the page, or advanced marketing solutions. Source Defense compartmentalizes each such script and allows the website owner to define exactly what each of them can access and do on the page, achieving increased security, compliance and avoiding latency and slowdowns originating from 3rd party scripts.

Open Positions at Source Defense:

Infrastructural, algorithms-rich, non-GUI, complex JavaScript programmer is needed.

The JavaScript is executed in browsers (not Node), and involves extensive usage of all the JavaScript API.

Emphasis on performance (CPU, memory) and elegant writing.


• Team-up to debug, extend, and maintain a medium-sized, modular, yet complex system.

• Hunt in thick 3rd-party obfuscated unfamiliar code.

• Conduct war-games with skilled hackers as either the defense or the offense.

• Collaborate with other team members.

Skills and Qualifications

• Strong understanding of the JavaScript language and API.

• Strong understanding of HTML and CSS.

Nice to have

• Experience with C++

• Proficient understanding of cross-browser compatibility issues and ways to work around such issues

Send your CV