Aristeem aristeem.com is an American IT company with Ukrainian roots that provides a unified service for running heavy software on any device for everyday users.
Aristeem is looking for a highly skilled Senior C++ Developer experienced in Windows graphics capture and real-time video processing. You will design, optimize, and maintain high-performance capture modules for screen and video pipelines, working closely with GPU APIs, hardware encoders, and complex multi-threaded systems. Tech Stack C++17/20, WinAPI, COM, DirectX 11/12, DXGI, WGC, D3D11on12, NVENC, AMF, QSV, Media Foundation, FFmpeg, ETW, PIX, RenderDoc, CMake, MSVC. Responsibilities * Develop and optimize image capture modules using DXGI Desktop Duplication API, Windows Graphics Capture, and fallback methods via GDI/DWM. * Work with DirectX 11/12, shared textures, GPU—CPU synchronization, and zero-copy frame transfers. * Implement cursor capture, HDR→SDR conversion, scaling, and color correction. * Integrate with hardware encoders (NVENC, AMF, QSV) and media pipelines (Media Foundation, FFmpeg). * Support multi-monitor setups, HiDPI, and virtual displays (IDD). * Ensure optimal performance (≥120 FPS at 4K), resolving bottlenecks and thread race conditions. * Develop internal SDK interfaces and logging tools (ETW/WPA). * Participate in architectural discussions and code reviews.
Requirements * 6+ years of professional experience in C++17/20 development. * Deep understanding of WinAPI and COM. * Proven experience with DirectX 11/12, DXGI, IDXGIOutputDuplication, and Windows Graphics Capture (WGC). * Strong knowledge of multithreading, atomic operations, and GPU/CPU synchronization. * Experience with Media Foundation, FFmpeg, or hardware video encoders (NVENC/AMF/QSV). * Proficiency in profiling and debugging tools (ETW, PIX, RenderDoc, WPA). * Understanding of WDDM, DWM, and Flip Model. * Ability to write clean, efficient, and leak-free multi-threaded code.
Nice to Have * Experience developing virtual displays or Indirect Display Drivers (IDD). * Familiarity with zero-copy frame sharing (D3D shared handles, keyed mutex). * SIMD optimization (SSE/AVX) for color space and format conversions (e.g., RGBA↔NV12, I420). * Knowledge of OBS / obs-studio architecture or plugin development. * Experience with streaming systems (WebRTC, RTSP, RTMP, HLS). * Understanding of H.264/H.265 codecs, bitrates, and latency presets.
Personal Qualities * Strong systems thinking and attention to low-level details. * Commitment to quality, performance, and stability. * Ability to justify technical decisions and collaborate effectively in a team.
We offer * Competitive Salary * 15 paid vacation days and 7 sick leaves * Rezervation if needed * Blackouts equipped office (heating and electricity)
