Senior Software Engineer, Windows/Desktop Applications – Bristol, United Kingdom

Senior Software Engineer, Windows/Desktop Applications

Bristol, United Kingdom

Mission

The mission of Speechify is to make sure that reading is never a barrier to learning. 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.

What You’ll Do

• Lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI, C#, XAML, and — when needed — C++.
• Define and enforce best‑practices for Windows desktop development across the codebase: code architecture, performance, memory usage, responsive UI, cross‑version compatibility, and maintainability.
• Drive accessibility efforts: integrate and validate support for accessibility APIs, ensure UI controls, focus management, keyboard navigation, screen‑reader support, and usability for users with disabilities.
• 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.
• Identify, diagnose, and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, or compatibility problems, and propose robust architectural or design solutions.

Preferred / Bonus

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps.
• Experience with localization/globalization, right‑to‑left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long‑term, including maintenance, refactoring, and technical debt management.

What we offer

• A high‑impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat‑structure engineering culture — you are not just a coder, but a builder and a decision‑maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership.
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end‑to‑end, and contribute to long‑term product vision.
• A purpose‑driven mission: building software that’s reliable, accessible, and user‑centered.

Requirement Summary

• 3+ years in Windows desktop application development using Windows App SDK, WinUI, C#, XAML. Experience with native Windows code (C++, Win32/WinRT/COM) preferred.
• Deep understanding of Windows application architecture, including interop between managed and native code.
• Proven track record of designing, building, and shipping production‑quality desktop applications.
• Strong experience with accessibility APIs on Windows.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi‑threading or async programming.
• Experience leading technical design, mentoring, code reviews, architecture decisions.
• Strong communication skills and user‑centric mindset.

Equal Employment Opportunity

Speechify is committed to a diverse and inclusive workplace. Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

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