Senior Software Engineer, Windows/Desktop Applications - Stockholm, Sweden

Role overview

Help shape a leading text-to-speech platform that converts documents, articles, and books into audio for a global audience. The Senior Software Engineer will own the native Windows desktop application, leading architecture, performance, and accessibility across a fully remote, distributed engineering team. This senior role combines deep technical work with leadership responsibilities, directly influencing a product used by millions.

Responsibilities

- Lead architecture and development of a native Windows desktop client built with the Windows App SDK, WinUI, C#, XAML, and C++ as needed. - Define and enforce best practices across the Windows codebase, including performance, memory usage, responsive UI, and Windows 10/11 compatibility. - Drive accessibility efforts using Microsoft UI Automation and related Windows APIs, ensuring strong screen-reader support, focus handling, and keyboard navigation. - Collaborate with product designers, UX researchers, and QA to shape feature planning, UI architecture, and the long-term Windows roadmap. - Take end-to-end ownership of features, from concept through design, implementation, testing, release, and ongoing maintenance. - Investigate and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, and platform compatibility problems.

Requirements

- Several years of professional experience delivering production Windows desktop applications with the Windows App SDK, WinUI or comparable UI frameworks, C#, and XAML, plus experience with C++ and Win32/WinRT/COM. - Deep knowledge of Windows application architecture, including .NET interop with native code. - Track record of shipping high-quality, performant desktop software at scale. - Hands-on experience with Windows accessibility APIs and a dedication to inclusive design. - Strong fundamentals in OOP, design patterns, data structures, algorithms, memory management, and async programming. - Proven ability to lead technical design, mentor engineers, conduct code reviews, and drive architectural decisions, with strong cross-functional communication skills.

Nice to have

- Familiarity with automated UI testing frameworks and writing unit, integration, or end-to-end UI tests. - Background optimizing desktop performance, including startup time, memory footprint, rendering performance, and high-DPI behavior. - Experience with localization, globalization, RTL UI, and accessibility across regions. - Comfort working with telemetry, analytics, crash reporting, and error monitoring tools. - Exposure to CI/CD pipelines, release engineering, and deployment automation for desktop products.

Benefits and work setup

- Fully remote position within a globally distributed engineering team; no office requirement. - High-impact scope, defining the architecture and user experience of a Windows product used by millions. - Flat, collaborative engineering culture with significant autonomy and end-to-end ownership of features. - Mentorship and growth opportunities, with a path toward roles such as Tech Lead or Architect. - Mission-driven focus on building accessible, reliable software that helps people read and learn. - Sweden-based compensation in the range of 30,000–115,000 USD per year plus bonus and equity, depending on experience.