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Senior Software Engineer, Windows/Desktop Applications - Seville, Spain

47 minutes ago
Spain
Full-time
Senior
Software Engineer
Software Development
C# C++ CI/CD .NET
Apply Now
Speechify

Speechify

Speechify is a top-rated text to speech AI app with voice cloning and dubbing features, serving over 10 million users including students and professionals.

Internet Software & Services
51-250
Founded 2017
View All Jobs 1423

Description

  • Lead the design, architecture, and development of native Windows desktop applications.
  • Define and enforce best practices for Windows desktop development, including code architecture, performance, memory usage, responsiveness, compatibility, and maintainability.
  • Drive accessibility efforts by integrating and validating support for Windows accessibility APIs and inclusive UI behaviors.
  • Collaborate with product designers, UX researchers, QA, and other stakeholders on feature planning and UI/UX architecture.
  • Own the full feature lifecycle from conception through design, implementation, testing, release, and maintenance.
  • Identify, diagnose, and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, and compatibility problems.
  • Propose robust architectural and design solutions for long-term product quality and stability.
  • Mentor other engineers and contribute to technical direction and architecture-level decisions.

Requirements

  • 3+ years of experience in Windows desktop application development using Windows App SDK, WinUI or similar frameworks, C#, and XAML.
  • Ideally additional experience with native Windows code such as C++, Win32, WinRT, or COM.
  • Deep understanding of Windows application architecture, including interop between managed .NET code and native code.
  • Proven experience designing, building, and shipping production-quality desktop applications with a focus on reliability, performance, scalability, and maintainability.
  • Strong experience with accessibility APIs on Windows, such as Microsoft UI Automation or similar frameworks.
  • Excellent software engineering fundamentals, including OOP, design patterns, data structures, algorithms, memory management, and multi-threading or asynchronous programming where relevant.
  • Experience leading technical design, mentoring engineers, conducting code reviews, and making architecture-level decisions.
  • Strong communication skills and the ability to articulate tradeoffs, collaborate cross-functionally, and drive consensus.
  • A user-centric mindset with a focus on polished, intuitive, and accessible experiences.
  • Preferred experience writing automated UI tests, including unit, integration, or UI automation tests.
  • Preferred experience with performance optimization for desktop apps, including memory usage, startup time, rendering performance, high-DPI support, and responsiveness under load.
  • Preferred experience with localization, globalization, right-to-left UI support, and internationalization.
  • Preferred familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
  • Preferred experience shaping CI/CD workflows, release pipelines, and desktop deployment strategies.
  • Preferred experience owning feature areas or modules long-term, including maintenance, refactoring, and technical debt management.

Benefits

  • A high-impact role with direct influence on the Windows product used by millions of users.
  • A collaborative, flat-structure engineering culture where you help make technical decisions.
  • Opportunities to mentor others and grow into broader technical leadership roles such as Tech Lead or Architect.
  • Flexibility, autonomy, and responsibility to own features end-to-end.
  • A purpose-driven mission focused on building reliable, accessible, and user-centered software.

Interested in this position?

Apply directly on the company website

Apply Now

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