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:

Running manual tests on a web application, writing and following test scenarios and sanity tests. Working closely with R&D and product teams.


• Identifying issues and weakness points of the system, reporting and tracking them in bug management systems.

• Writing testing scenarios and sanity tests

• Writing and running manual tests

• Testing with and without PRD’s

Skills and Qualifications

• Deep understanding of the WWW, and different browsers (must)

• Flaunt and proficient in both English and Hebrew (spoken and written)

• Able to work in an open space environment

• Willing to work long hours when needed

Nice to have

• Basic understanding of HTML, CSS and JS

• Understanding of Agile methodology

• Running queries and understanding of DB (Redis, Mongo, Xasandra)

• Experience with Fiddler

• Previous experience with Jira

Send your CV

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