Software Engineer for AdblockPlus Chromium - Berlin, Cologne, Remote

Distribution Unit

Get to know us

eyeo is an open source software company whose market-leading ad-filtering technology powers  products like Adblock Plus (ABP), Adblock and Adblock Browser, and whose privacy-first products like Crumbs promote transparency and an improved browsing experience. eyeo is dedicated to giving users control of their online experience while fostering a sustainable online value exchange to offer creators, publishers and advertisers more ways to earn money for the content they provide. 

In combining our reach of distribution partnerships and our own products, our technology runs on over 225 million devices.

At eyeo, we’re passionate about user agency, personal privacy, sustainability and keeping the web an open, fair resource for everyone.

How we work

eyeo colleagues are based all over the world. You will join a cross-functional team distributed across 8 countries. We try to find a good balance between asynchronous and synchronous communication, and have adopted agile practices to increase awareness across all team members.

After your morning coffee, you'll be expected to...

  • Improve the ad-filtering SDK for Chromium that powers our partners’ browsers, using mainly your C++ skills, with some bits of Java and JavaScript
  • Keep up with changes related to Chromium versions, including adopting some of their software architecture improvements in our SDK
  • Optimize memory usage and performance for our mobile partners, while striving for high ad-blocking quality
  • Ensure the stability of our SDK across multiple platforms and partners via automated tests, code reviews and collaboration with your QA colleagues
  • Ensure that partner requests are answered and implemented, and that partners are satisfied

What you bring to the table...

  • 4+ years of software development experience
  • Experience with Chromium browser internals
  • Extensive experience in modern C++ (minimum C++11)
  • Experience developing multithreaded applications 
  • Continuous Integration at least as a user (bonus for having set up CI pipelines)
  • Knowledge of the Git version control system
  • Familiarity with agile frameworks (Scrum, Kanban, etc)
  • Fluency in both verbal and written English
  • Proactivity to solve problems with a positive attitude

It's awesome, but not required, if you have...

  • Experience in Java, ideally with JNI
  • Experience developing and testing mobile applications, ideally Android native
  • Experience in Python, which we use for automation purposes
  • Experience in JavaScript, ideally also familiar with V8
  • Understanding of the ad tech landscape
  • Experience using and creating Docker containers
  • Remote work experience

What we offer:

  • Work from home or one of our offices —we trust you to find what works best for you
  • Stipend for one of the following: home office or relocation
  • Flexible working hours
  • 28 days paid vacation 
  • Your choice of hardware and setup
  • Personal and professional development budget
  • Monthly child care stipend for children under 6
  • Offsite team days and the annual summer company retreat in Cologne
  • Company-sponsored hackathons

Privacy Notice

When you apply, you’ll be automatically forwarded to our recruitment platform operated by an external service provider called Greenhouse (seated in the US). Greenhouse collects some information on its website, such as anonymous usage statistics, by using cookies, server logs, and other similar technology. For more information, please refer to Greenhouse’s Privacy Policy. All documents and information provided by you are stored with Greenhouse. In order to ensure an adequate level of data protection, eyeo and Greenhouse have entered into the EU Standard Contractual Clauses (“processors”) - Commission Decision C(2010)593. You can request a copy of this by contacting us at privacy[at] If you don’t want your data forwarded to Greenhouse, please do not apply. For detailed and further information, please refer to our Privacy Policy at

Why work here