Aleksandr K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Hello! My name is Aleksandr Kalinin. I hold a double major in Mathematics and Computer Science, and I have been programming professionally since 2006. Skills: C++ 11/14/17/20/23, STL, SIMD (SSE, AVX, AVX512), CMake, vcpkg, Conan, Boost, perf, VTune. Python, Data Science, NumPy, Pandas, Matplotlib. Rust, tokio. Erlang, Elixir, NIF API, Phoenix, Absinthe, ASH, OTP, Broadway, Ecto, Oban, Nx, Bumblebee, Reactor, Hex, Mix. C#. TypeScript, JavaScript. Three.js, Pixi.js, Phaser, Capacitor, Tauri, Electron. Algorithms, Data Structures, Computational Geometry, Optimization, Linear Algebra, Numerical Methods. Concurrent Programming, Multithreading, Lock-free Programming. CUDA, HIP, OpenCL, Compute Shaders, Halide, TBB, OneAPI. MATLAB, SageMath, Mathematica. Graphics Programming, Vulkan, Metal, DirectX 12, OpenGL, HLSL, GLSL, MSL, Slang, Real-time Rendering, Custom Engine Development. Unreal Engine 4/5, UE5 (3D, PCG, Geometry Scripting, Control Rig, Niagara, UMG, Slate, GAS, Chaos Cloth), Unity, Godot, Cocos2dx, SDL3. ECS, EnTT, flecs. Machine Learning, Deep Learning, PyTorch, TensorFlow, Scikit-Learn, ONNX, TensorRT. Computer Vision, Image Processing, OpenCV, Roboflow, Triton, YOLO, YOLOv11, DETR, RT-DETR, Faster R-CNN, R-CNN, U-Net, DeepLabV3+, SAM, SAM2, SegFormer, ResNet, ConvNeXt, ViT, Swin, CoTracker, TAPIR, SIFT, DISK, ALIKED, SuperPoint, SuperGlue, LightGlue, LoFTR, XFeat. Optimization / Solvers: OR-Tools (CP-SAT), Z3, MiniSAT, SCIP, HiGHS, IPOPT, MiniZinc. Point Cloud Processing, Collision Detection, Physics Simulation. Maya API, Houdini API (HDK, VEX, HScript), Blender Python API, Pipeline Tools Development. Software Porting, Game Development. Qt, QML, PySide6, JUCE, WxWidgets, VTK, ImGUI, RmlUI. iOS Development, Swift, SwiftUI, Objective-C, UIKit, AVFoundation, Metal. Android Development, NDK. FFmpeg WebRTC, RTMP, RTSP, SRT, HLS, NDI, MPEG-DASH, CMAF, WebTransport, QUIC, UDP/RTP/RTCP, TCP, WebSockets, HTTP Live Streaming pipelines, Video Processing, Real-time Streaming Systems. JavaScript, Node.js, Three.js, Pixi.js. Docker, Kubernetes, AWS, EKS, CI/CD, n8n. PostgreSQL, Supabase. Windows, Mac, Linux. GIS, GDAL. AI, Claude Code, Codex, GenAI.