Senior Software Engineer, Windows/Desktop Applications - Bordeaux, France

Empleora; Bordeaux; Hybride; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Speechify is seeking a senior Windows desktop engineer to lead the design, architecture, and delivery of native Windows apps using Windows App SDK, WinUI, C#, and C++.

You will enforce best practices, push accessibility, and collaborate with product designers, QA, and engineers to shape the Windows platform roadmap. The role requires strong communication and a user-centric approach, delivering reliable, high-performance software.

Qualifications

• 3+ years in Windows desktop app development with Windows App SDK/WinUI and C#, XAML.
• Understanding interop between managed (.NET) and native code.
• Proven track record shipping production-quality desktop apps.
• Experience with accessibility APIs on Windows.
• Strong fundamentals: OOP, patterns, data structures, algorithms.
• Experience leading design, mentoring, code reviews.
• Strong communication and cross-functional collaboration.
• User-centric mindset delivering polished, accessible experiences.

Responsabilités

• Lead design, architecture, and development of Windows desktop applications.
• Define best-practices for Windows desktop development across the codebase.
• Drive accessibility efforts: validate accessibility APIs and usability.
• Collaborate with product designers, UX researchers, QA, and engineers to shape roadmap.
• Own full lifecycle of features from conception to release and maintenance.
• Identify and resolve complex bugs, performance bottlenecks, or memory issues.

Connaissances

Windows desktop development

C# / XAML

C++ / Win32

Accessibility APIs

Software architecture

Code reviews & mentoring

Effective communication

User-centric design

Outils

Windows App SDK

WinUI

XAML

Description du poste

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. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.

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

What You'll Do

• 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++.
• 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.
• 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.
• 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.
• Take ownership of full lifecycle of features: conception → design → implementation → testing → release → maintenance. Ensure quality, reliability, and consistency across releases.
• Identify, diagnose, and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, or compatibility problems — and propose robust architectural or design solutions.

An ideal candidate should have

Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:<