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.                  

Think you’re a good fit for this job? 

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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.

QuiX Quantum is at the forefront of the development of photonic quantum computing, a rapidly developing sector. Since our start in 2019, we have presented two world record-breaking quantum photonic processors. These are low-loss, multimode, reconfigurable interferometers, that allow the user to perform arbitrary, controlled interference between a number of optical channels, in the classical or quantum domain. QuiX Quantum's processors are industry-leading in the number of optical channels (20), low loss (2.9 dB), and high transformation fidelity (99%), making them an excellent solution for many applications. Not only in quantum computing, but also for quantum communication, QRNG, machine learning, and more. As a fast-growing company, we are now looking for an intern or a Master’s thesis student at our office in Stuttgart, Germany.  

What will you be doing?  

As an intern or student you will be part of the engineering team that works on assembling, testing and delivering our photonic processors to our customers. Your tasks will be focussed analysing, documenting and optimization of our production and quality assurance processes.  

You will take care of: 

• Analysis, documentation, design and optimization of processes ensuring efficient production. 

• Application of best practices in lean management, operational excellence and quality management. 

You will collaborate with a multidisciplinary team of experts in quantum computing, photonics, electronics, theory, and experimental physics.  

What we ask of you: 

• A bachelor’s degree in a relevant discipline and enrollment in a master’s program  

• Knowledge in production and operation processes and optimization 

• Proficiency in spoken and written English. 

• Critical thinking and problem-solving skills. 

• An organized and methodical style of working with excellent documentation skills. 

The following would be an advantage: 

• Knowledge in lean management and operational excellence. 

• Knowledge in quality assurance and management (ISO 9001, 5S). 

• Experience with ERP systems. 

• Experience with photonic devices and/or quantum photonic computation. 

• Experience with software management.  

• Proficiency in spoken and/or written German. 

What to expect from us:  

Working in a start-up means that your work contributes directly to the direction of the company. Together, we work on awesome and challenging projects in a high-tech and innovative environment. Everyone has their own specialty and together we form a dynamic and diverse team. 

Your workplace will be in Stuttgart, Germany. The working language of our company is English. As a Dutch-German start-up we have flat hierarchies and a collaborative and inclusive work environment. We provide the resources, tools and training opportunities that enable you to succeed in your job and grow with the company. Depending on your tasks, hybrid working may be possible.  

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Are you as excited as we are to contribute to the fastest way to a quantum future but at the same time to work on products that are useful today? Do you want to be part of our journey to develop the world’s best quantum computer while already delivering value to our customers now? Then join us!