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!