Senior .NET (WPF) Developer

Skylum empowers millions of photographers to create incredible images. Our award-winning photo editing software combines AI-powered automation with full creative control. We make editing enjoyable, easy, and accessible for everyone.

You’ll join an environment where growth, learning, and creativity are encouraged. Flexible schedules, trust-based workflows, and a supportive team give you everything you need to focus on your best work.

Proudly Ukrainian, Skylum stands with Ukraine through action, regularly supporting organizations that help accelerate our victory.

Requirements:

• 3-5+ years of commercial C#/.NET desktop development experience;


• Deep WPF expertise: Strong mastery of MVVM, data binding, custom controls, and a solid grasp of the UI thread / Dispatcher model and async programming;


• Real experience with .NET memory management and performance profiling - and a proven track record of fixing leaks, not just describing them;


• Practical exposure to native C++ interop (C++/CLI, P/Invoke, or marshaling);


• Solid understanding of OOP, SOLID, clean code, and a genuine code-review habit;


• Comfortable in Agile environment, writing clear acceptance criteria and handling corner cases;


• A practical, daily relationship with AI-assisted development tooling (Copilot, Cursor, etc.) to boost productivity;


• English strong enough to live in official documentation and deep-dive technical literature (MSDN, specs, deep-dive articles).

Nice to have:

• Experience with Image/graphics processing, GPU, or DirectX/Direct2D;


• Experience with WinUI 3;


• A background in photo, creative, or media desktop apps;


• Comfort improving large legacy codebases through deliberate and safe refactoring;


• Native instinct for desktop pitfalls - handling leaks, permission levels, and UI-thread affinity;


• Photography as a hobby.

Responsibilities:

• Architect and build high-performance features using .NET 10 and WPF, ensuring the UI remains fluid and responsive under heavy loads;


• Develop and optimize C++/CLI wrappers to maintain a seamless, memory-safe bridge between our .NET environment and native C++ core libraries;


• Profile and hunt down complex desktop issues - eliminate memory leaks, fix UI thread blockages, and resolve interop vulnerabilities;


• Deliberately refactor legacy modules, gradually transforming older parts of the codebase into clean, testable, and modern architecture;


• Conduct high-standard code reviews


• Leverage modern AI-assisted tools to accelerate routine coding, unit-test generation, and documentation;


• Collaborate closely with the team during 2-week sprints to flesh out technical requirements, cover tricky corner cases, and estimate complex tasks.

What we offer

For personal growth:

• A chance to work with a strong team and a unique opportunity to make substantial contributions to our award-winning photo editing tools;


• An educational allowance to ensure that your skills stay sharp;


• English, German, and Polish classes to strengthen your capabilities and widen your knowledge.

For comfort:

• A great environment where you’ll work with true professionals and amazing colleagues whom you’ll call friends quickly;


• The choice of working remotely or in our office space located on Podil, equipped with everything you might need for productive and comfortable work.

For health:

• Medical insurance;


• Twenty-one days of paid sick leave per year;

For leisure:

• Twenty-one days of paid vacation per year;


• Fun times at our frequent team-building activities.

What to expect when you apply

• An interview with our Talent Acquisition Specialist


• Professional/technical interview


• Management interview


• And finally, your job offer!