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Secure Code Warrior

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Senior Software Engineer, Native Applications, Networking

Full-stack EngineerSoftware EngineerContractRemoteSeniorTeam 201-500Since 2015H1B No SponsorCompany SiteLinkedIn

Location

United Kingdom

Posted

34 days ago

Salary

0

Seniority

Senior

Bachelor DegreeEnglishDNSMacOSSwiftTCP/IPGo

Job Description

Senior Software Engineer, Native Applications, Networking

Secure Code Warrior

• Take long-term ownership of core system-level product suite across Windows and macOS. • Be the architectural anchor for native applications and networking stack. • Responsible for the vision, stability, and security of low-level implementations that integrate deeply with operating system frameworks. • Work at the intersection of native app development (Swift, C++, C#) and high-performance networking (Go).

Job Requirements

  • Deep, professional experience with system-level development and native application architecture on Windows and/or macOS.
  • Strong proficiency in Go, Swift, and C++ or C#.
  • Extensive hands-on experience with the macOS NetworkExtension framework and the Windows Filtering Platform (WFP).
  • Expert-level understanding of TCP/IP, DNS, TLS, and low-level packet manipulation.
  • Skilled in kernel/system debugging, performance profiling (Xcode Instruments, WPR/WPA), and memory leak detection.
  • Experience maintaining native software in production-grade security or networking environments.
  • Ability to work cross-functionally with DevOps, Security, and Product teams in an agile, remote-first environment.

Benefits

  • Generous leave
  • Work from home options

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