Senior Software Engineer, Windows/Desktop Applications - Düsseldorf, Germany

<div class="p-rich_text_section"><strong data-stringify-type="bold">Mission</strong></div> <div class="p-rich_text_section"> <p>The mission of Speechify is to make sure that reading is never a barrier to learning.</p> <p>Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.&nbsp;&nbsp;</p> <p>Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies</p> </div> <div class="p-rich_text_section"><strong data-stringify-type="bold">What You’ll Do</strong></div> <div class="p-rich_text_section"> <ul> <li>Lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI (or related UI frameworks), C#, XAML, and — when needed — C++.</li> <li>Define and enforce best-practices for Windows desktop development across the codebase: code architecture, performance, memory usage, responsive UI, cross-version compatibility (Windows 10/11+), and maintainability.</li> <li>Drive accessibility efforts: integrate and validate support for accessibility APIs (e.g. Microsoft UI Automation or other relevant Windows accessibility frameworks), ensure UI controls, focus management, keyboard navigation, screen-reader support, and usability for users with disabilities.</li> <li>Collaborate closely with product designers, UX researchers, QA, and other stakeholders to shape feature planning, UI/UX architecture, and long-term roadmap for the Windows platform.</li> <li>Take ownership of full lifecycle of features: conception → design → implementation → testing → release → maintenance. Ensure quality, reliability, and consistency across releases.</li> <li>Identify, diagnose, and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, or compatibility problems — and propose robust architectural or design solutions.</li> </ul> </div> <div class="p-rich_text_section">&nbsp;</div> <div class="p-rich_text_section"><strong data-stringify-type="bold">An ideal candidate should have</strong></d