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By Proton Mail, Switzerland                                                               Postings at: Barcelona, Spain; Geneva, Switzerland; London, England, United Kingdom; Paris, France                          Qualification: 

  • Bachelor’s /Master’s Degree

Experience:

  • Expert-level knowledge of operating system internals.
  • Experience with system programming languages (C/C++, Rust, Go, Python, Lua, etc.)
  • Experience with software development and system design. Understanding of the principles of quality assurance.
  • Extensive experience working with Linux kernel, Windows drivers, or macOS system extensions development.
  • Strong understanding of system programming languages (C/C++, Rust, Go, Python, Lua, etc.).
  • Experience with debugging code and code profiling
  • Experience with cryptography concepts (e.g., TLS certificates and public key infrastructure)

Duties & Responsibilities:

  • A documented track record of contributions to system-level projects and applications.
  • Knowledge in the following areas is considered a plus: Expertise in Windows, macOS, or Linux system development.
  • Expertise with network protocols and implementation (UDP and TCP stacks) and Good understanding of TCP/IP protocol and settings (e.g., congestion algorithms). Strong understanding of VPN protocols (particularly OpenVPN and Wire Guard).

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