Senior C++​/QT Engineer

We’re looking for world-class developers to join our team in building our Desktop applications
, with a strong focus on frontend development
. You’ll use the latest technologies and frameworks to build a modern, responsive and highly-performant application providing multiple products in the privacy and security space.

We provide the scaffolding and release vehicles into which multiple product units contribute to creating a super-app of privacy and security services for Windows, Linux and Mac. We:

• Build the foundations of the app into which other product units then contribute functionality like VPN and DNS services, password management, and anti-malware.
• Define core architecture
  , including guardrails to enable multiple teams to contribute safely.
• Build core functionality in areas such as authentication, user subscriptions, in-app purchases, local and push notifications, in app messages and more.
• Configure and manage our build systems.
• Pick test frameworks and guide other teams on using them well.
• Coordinate releases to customers, typically once every two weeks or more frequently.
• Coordinate technical documentation.
• Provide expertise relating to the Desktop platform as a service for other teams.
• Are accountable for
  :
• Quality: especially performance, app stability, battery‑life
• Velocity: ultimately measured by how quickly we can deliver value to customers
• Meeting SLAs for the build and CI systems
• Satisfaction of other engineers with their ability to contribute to our Desktop app

As a member of this team you will:

• Write high quality, well architected, modular code which is easy to read and maintain.
• Design, build, and maintain efficient, reusable, and reliable C++ code targeting different platforms (Linux, macOS & Windows).
• Ensure your code and the application as a whole have excellent automated test coverage.
• Ensure the app has a clean, simple and robust architecture to enable other teams to easily contribute code.
• Ensure our application functions correctly and looks great on a wide range of Windows, Linux and Mac OS versions and hardware.
• Ensure our application behaves well in a broad range of environments, such as when installed alongside other security software, or in problematic networks.
• Ensure your build and test pipelines are fast and stable.
• Provide high quality code reviews for your team and other contributors to the code base.
• Able to identify and communicate problems with technology, investigate potential causes, propose solutions/next steps, and proactively inform the team of changes.
• Lead by example and provide guidance and mentorship to other developers.
• Provide technical insights for the Product Management team.
• Work closely with the Design Team to design and build great UI and a great user experience.
• Undertake spikes, prototyping and R&D work to investigate feasibility and de‑risk complex projects.

• Proven experience using C++ targeting different platforms.
• Experience in Qt and QML.
• Rigorosity with code quality practices and architectural design principles; passion in creating a testable architecture and product.
• Excellent at writing well architected code using design patterns such as MVC, MVVM and MVP.
• Excellent at writing automated test cases, and following TDD practices.
• Experienced writing thread‑safe code.
• Experienced with agile software development practices such as Scrum or Kanban.
• Experienced at helping other team members be more productive, and to grow.
• Great communication skills, spoken and written.
• Logical mindset and great problem solver.
• Experience writing technical designs and threat models.

• Experienced building extensible applications
• Knowledge of VPN technological intricacies.
• Knowledge of Ruby / Python / Bash / Powershell
• Solid understanding of IP networking, including both low‑level sockets programming and high‑level application layer programming.
• Experience with BDD.
• Knowledge of network and software security

Mid‑Senior level

Full‑time

Computer and Network Security and Technology, Information and Media