C# .NET Developer (remote)

Anywhere  ‐ Remote
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Description

We are looking for a part-time freelancer/contractor to work remotely for our industry leading VPN service. IVPN is a leader in developing privacy enhancing technologies and wish to further develop their industry leading VPN client software for both the Windows and OSX platforms.

The successful candidate will be taking over the development of the client software which will involve the fixing of bugs in the current version and the development of new features. We use Jira to track issues and expect this role to consume about 5-20 hours per week depending on the quantity and types of issues present in the tracker at the time. Time tracking is also done in Jira and paid at an agreed hourly rate.

Skills & Requirements:

Must have
  • 5+ years experience with C#/.NET
  • Experience with XAML and Windows Presentation Foundation (WPF)
  • Strong understanding of networking, routing, firewalls, inter-process communication, threads
  • Mac development experience with Xamarin.Mac or Xcode and Cocoa


  • Nice to Have
  • Experience with Objective-C/Cocoa
  • Understanding of the OS routing table and manipulating routes with the route command
  • Understanding DHCP, DNS leaks, and DNS resolver configuration on Windows (IP Helper API) and Mac (scutil)
  • Understanding of the "netsh advfirewall" (Windows) and "pfctl" (Mac) commands for manipulating firewall rules


  • About IVPN Limited:
  • VPN was founded in 2009 by a group of information security professionals who met whilst doing their Msc in Information Security at Royal Holloway, University Of London.
  • We are bound by a passion for promoting privacy as a fundamental right. We've experienced that few companies take privacy seriously even when they say they do and in the privacy business that can be fatal as customers may be gaining a false sense of security.
  • Our mission is to establish ourselves as the benchmark for privacy enhancing technologies.
  • Start date
    ASAP
    From
    IVPN Limited
    Published at
    18.09.2014
    Contact person:
    Freelancer Map
    Project ID:
    777223
    Contract type
    Freelance
    Workplace
    100 % remote
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