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Winui Jobs in Renton, WA (NOW HIRING)

Microsoft

Principal Software Engineer - C++

Redmond, WA · On-site

$151.20K - $202.70K/yr

Shape the Architecture of a Modern Client Platform Define and evolve the architecture of a large-scale client platform built with C#, C++, TypeScript, WinUI, and WebView2 , delivering highly ...

AST Inc

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Experience building modern desktop applications using Avalonia, WPF, or WinUI. * Experience developing interactive 3D or simulation applications using Unity. Benefits * Competitive pay & bonus ...

AST

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Experience building modern desktop applications using Avalonia, WPF, or WinUI. * Experience developing interactive 3D or simulation applications using Unity. Benefits * Competitive pay & bonus ...

AST Inc

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Experience building modern desktop applications using Avalonia, WPF, or WinUI. * Experience developing interactive 3D or simulation applications using Unity. Benefits * Competitive pay & bonus ...

AST

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Experience building modern desktop applications using Avalonia, WPF, or WinUI. * Experience developing interactive 3D or simulation applications using Unity. Benefits * Competitive pay & bonus ...

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Winui information

What is a WinUI job?

A WinUI job involves working with Microsoft's Windows UI (WinUI) framework to develop modern, native Windows applications. WinUI provides a flexible and scalable UI framework for Windows apps, supporting Fluent Design and integration with the latest Windows features. Developers in this role typically use C#, XAML, and the Windows App SDK to create responsive and visually appealing user interfaces. This job may include tasks such as designing UI components, optimizing performance, and ensuring compatibility across Windows devices.

What are the key skills and qualifications needed to thrive in the Winui position, and why are they important?

To thrive as a WinUI Developer, you need expertise in C#, XAML, and the Windows UI (WinUI) framework, typically backed by a background in software development or computer science. Familiarity with Microsoft Visual Studio, Git, and Azure DevOps, as well as experience in UWP or Windows App SDK, is often required. Strong problem-solving abilities, attention to detail, and effective communication are valuable soft skills in this role. These competencies ensure the creation of robust, user-friendly Windows applications and successful collaboration within development teams.

What does a typical workday look like for a WinUI Developer?

A typical day for a WinUI Developer involves designing and coding user interfaces, debugging and optimizing Windows applications, and participating in team stand-ups or code reviews. Developers often collaborate closely with UX/UI designers, backend developers, and project managers to translate design concepts into high-quality apps. Tasks may include prototyping new features, refining the user experience, and troubleshooting issues reported by users or testers. This role offers a dynamic mix of independent work and teamwork, and regularly calls for creative problem-solving and innovation.
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Winui jobs near you

Senior Software Engineer, Windows/Desktop Applications - Bellevue, WA, USA

Speechify

Bellevue, WA • On-site

$146.70K - $182.80K/yr

Full-time

Posted 3 days ago

Job description

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:

  • 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 (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
  • 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 (e.g. Tech Lead, Architect).
  • 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 — making a real difference for people.

The United States Based Salary range for this role is: 140,000-200,000 USD/Year + Bonus + Stock depending on experience

Think you're a good fit for this job?

Tell us more about yourself and why you're interested in the role when you apply.
And don't forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit?
Refer them!

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.