Windows Engineer

Job Description

We’re seeking a talented and motivated full-time Software Engineer to join our growing team. You will work as part of the engineering team to:

• Develop the Tailscale product, contributing to client code and backend services. The client code is a mix of C#, XAML, and Go. Prior Go expertise is not a requirement.
• Bring a special focus on our Windows platform, building and maintaining our Windows client using the modern WinUI/Windows App SDK stack, while contributing to common code that supports macOS, mobile, and other core client platforms.

Because we’re an early-stage and fully remote company, we’re looking for a motivated individual who can help move the product forward. The ability to think on your feet, collaborate with highly technical teams, and comfort working asynchronously are essential.

Key Responsibilities

• Work with engineers on a native Windows desktop client using Windows App SDK, WinUI, C#, XAML and Go
• Implement support for the latest Windows platform features while maintaining compatibility with a subset of older versions
• Develop and optimize product features on Windows, with a focus on UI components and platform integration
• Develop and maintain unit and integration tests using Microsoft Testing Platform v2 and xUnit
• Contribute to common, cross-platform Tailscale code

What We Are Looking For

• Four or more years of experience in software development
• Strong understanding of software development principles, capabilities, and limitations of the Windows platform
• Proficiency in C# and modern native UI frameworks (WinUI/UWP/WPF)
• Experience with general networking concepts - DNS, VPNs, IP Networking, routing, etc.
• Excellent written and verbal communication skills
• Ability to give and process constructive feedback, as well as work independently
• Flexibility to adjust to the dynamic nature of a startup

Nice to Have

• Experience with WinUI 3 and Windows App SDK
• Experience developing native Windows applications and services
• Familiarity with Windows networking stack and Windows Filtering Platform
• Familiarity with Windows security model, session isolation, access tokens and related concepts
• Proficiency in Go