Hire the Best DirectX Developers

Hello! My name is Aleksandr Kalinin. I have a double major in Math and CS. 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. 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), Godot, Cocos2dx 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. 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. iOS Development, Swift, 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. AI, Claude Code.

🚀 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐆𝐚𝐦𝐞 𝐄𝐧𝐠𝐢𝐧𝐞 & 𝐑𝐞𝐧𝐝𝐞𝐫𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 & Game Developer As a 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 Upwork freelancer, I help teams build high-performance, scalable game engines and rendering systems, from extending existing engine technology to developing custom engine systems from the ground up. I specialize in graphics programming, core engine architecture, and performance-critical game technology. My work focuses on building clean, scalable, and maintainable systems that support real production needs, not just short-term prototypes. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ◙ 𝗚𝗮𝗺𝗲 𝗘𝗻𝗴𝗶𝗻𝗲 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Custom engine systems, modular architecture, ECS-based workflows, runtime systems, and long-term maintainability. ◙ 𝗚𝗿𝗮𝗽𝗵𝗶𝗰𝘀 & 𝗥𝗲𝗻𝗱𝗲𝗿𝗶𝗻𝗴 Rendering pipelines, GPU-oriented workflows, low-level rendering systems, and modern graphics API integration. ◙ 𝗟𝗼𝘄-𝗟𝗲𝘃𝗲𝗹 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 C, C++, and C# development for performance-sensitive systems, tools, and engine-level features. ◙ 𝗚𝗿𝗮𝗽𝗵𝗶𝗰𝘀 𝗔𝗣𝗜𝘀 DirectX 11, DirectX 12, Vulkan, and OpenGL. ◙ 𝗘𝗻𝗴𝗶𝗻𝗲 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 Physics and audio integration, resource and asset management, GPU-focused workflows, and production-ready technical foundations. ◙ 𝗨𝗻𝗶𝘁𝘆 & 𝗨𝗻𝗿𝗲𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲 Senior-level experience with Unity and intermediate experience with Unreal Engine, giving me practical insight into different engine architectures and real-world production workflows. ◙ 𝗧𝗼𝗼𝗹𝗶𝗻𝗴 & 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 Engine tooling, editor frameworks, ImGui-style tools, Git/GitHub collaboration, and CMake-based build systems. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐫𝐢𝐧𝐠 𝐭𝐨 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬: I bridge low-level engine development with practical production requirements. Whether you need to optimize an existing rendering system, extend your engine architecture, build internal tools, or develop core technology for a custom engine, I focus on solutions that are fast, reliable, and maintainable. My priority is not just making systems work. It is making them robust enough to scale with the project. If you are looking for a Top Rated developer who can work close to the engine layer, understand performance constraints, and build clean technical foundations for your game or rendering project, let’s discuss your requirements.

My professional career has spanned three interconnected tracks—Desktop Application Development, Embedded Software Development, and Hardware/Systems Engineering—spanning over 20 years since starting as a C++ programmer in 1999. In recent years, my focus has shifted toward high-impact Desktop Application development (including VBA automation, .NET Core/WPF modernization, and end-user support), while leading end-to-end projects that integrate AI, IoT, custom device drivers, scientific simulations, audio DSP, and video analytics. As a Top-Rated Upwork talent with 100% Job Success and $100K+ earnings, I deliver scalable, reliable solutions across PC, Web, Mobile, Embedded, and AI-powered systems. I have successfully completed 200+ projects, pioneering innovations like Vehicle/Face Recognition, OCR, LLM-based Chatbots (including ChatGPT/OpenAI API | Grok integration), Speech Processing, and advanced IoT integrations since 2008. I specialize in: AI & Machine Learning : OpenCV, TensorFlow, Tesseract OCR, Grok LLM, Google Speech APIs Device Drivers & Systems Programming : NDIS, WFP, USB, Bluetooth, WiFi, Printer (Monolithic/PS/XPS/Unidriver), PCI , Smartcard. Virtual Audio/Video Desktop & Cross-Platform Development : C++, QT, MFC, WPF, .NET, MAUI, ActiveX, Plugins Scientific & Engineering Simulations : CAD/ZW3D integration, OpenMP, Scientific and Engineering Simulation tools for research , STEM Tools , Instrumentation Software Solutions , Audio/Video Processing : JUCE, DirectX, FFMPEG, RTMP/RTSP, Video Analytics IoT & Embedded — ESP32, STM32, Raspberry Pi, MQTT, CAN, SignalR Leading a skilled team of C++/C#/Java developers, I modernize legacy systems (e.g., VC++ 6.0 to modern frameworks), build custom IoT-AI solutions, and provide exceptional troubleshooting/debugging for complex challenges. Clients choose me for proven expertise, timely delivery, and innovative results that turn visions into production-ready software. Need an AI-enhanced IoT system, robust device driver, scientific simulation tool, audio DSP solution, Instrumentation Software , or full-stack desktop/embedded application? Let's discuss how I can help bring your project to life—message me today!

I build 3D web experiences that make people stop scrolling and actually interact. For the past 10+ years on Upwork (and 4+ deep in Three.js/WebGL), I’ve been helping brands turn flat interfaces into interactive products, whether that’s a product configurator, a landing page that converts, or a full 3D application. I’m not just plugging models into a scene. I care about performance, UX, and why the experience exists. If it doesn’t load fast, feel smooth, and serve a purpose, it doesn’t ship. Most of my work sits at the intersection of: 3D product visualization & configurators Interactive marketing experiences Data-driven / real-time 3D apps Developing Web3-enabled frontends (wallet integration, on-chain interactions). Implementing AI-powered features (smart interactions, data-driven behaviors, and generative workflows inside 3D environments). I work mainly with Three.js, React Three Fiber, GLSL, WGSL. Plus whatever it takes to get the job done cleanly (full-stack development, integration, and cloud deploy). Coming from a design + architecture background, I tend to think in systems, not just scenes. That helps when projects get complex, multiple states, dynamic data, performance constraints, all of it. I am capable of: make a product easier to understand online stand out with something interactive (not just another static page) build a serious 3D web app

I build high-performance 3D web experiences that turn visitors into customers. WHAT I DO: - Product Configurators (React Three Fiber) - Real-time Physics Simulations (60+ FPS) - Interactive WebGL experiences for e-commerce RECENT PROJECTS: ✓ Liquid Chrome - Real-time physics shader engine ✓ 3D Mug Configurator - POD business tool ✓ Interactive Phoenix - WebGL character animation TECH: Three.js, React, Next.js, TypeScript, GLSL Ready to bring your 3D vision to life? Let's talk!

Free 30-Minute Strategy Call — Let’s Build Something Great Senior Full-Stack Developer | 7+ Years of Proven Results I’m a senior Full-Stack Developer with 7+ years of experience in industry and now full time freelancer delivering robust, scalable web, mobile, and enterprise applications. I help businesses in Healthcare, E-commerce, Financial Services, and CRM turn complex requirements into reliable, high-performance solutions. I handle the entire development lifecycle from architecture and development to deployment and long-term maintenance ensuring speed, quality, and scalability at every stage. Why Work With Me? Proven Delivery: 100+ successfully delivered projects across multiple industries End-to-End Expertise: Frontend, backend, cloud, CMS, and automation Scalable Engineering: Clean, maintainable code built for long-term growth Client-Focused: Clear communication, on-time delivery, and reliable support Tech-Forward: Always aligned with modern tools, frameworks, and best practices Core Technical Skills: Full-Stack Development ASP.NET Core, C#, React js, Next.js, Node.js,Blazor, JavaScript, electron Frameworks & Platforms .NET, Laravel, Salesforce, React, AngularJS CMS Expertise Strapi, DNN, Orchard Core, Sitefinity, Umbraco, WordPress, Webflow Databases MS SQL Server, Postgress, MySQL, Entity Framework, Firebase Cloud & DevOps AWS, Azure, VPS, AliBaba, Docker, CI/CD pipelines Automation Make, n8n, Zappier Version Control Gitllab, Github,SVN Legacy & Modern Desktop Engineering: Legacy Systems Specialist: VB6, WinForms, ASP Classic maintenance and modernization Cross-Era Engineering: WPF to MAUI migrations, hybrid desktop apps, and legacy-to-API integrations. Recent Project Highlights: Global e-commerce platform built with ASP.NET Core and Angular Secure cross-platform healthcare application with backend integrations Custom CRM system with advanced analytics and reporting Cloud-deployed inventory management solution Business workflow automation using Make and n8n Infrastructure & Hosting Experience: AWS: ECS (Fargate), EC2, S3, RDS, Route S3, IAM Firebase: Hosting, Firestore Web Hosting: VPS, Nginx, cPanel Deployment Platforms: Vercel, DigitalOcean , Hostinger Security & Performance: Cloudflare 🤝 Let’s Work Together If you’re looking for a reliable senior developer who delivers results, communicates clearly, and adds long-term value to your product—I’d be happy to help. Let’s discuss your goals and build something scalable, secure, and future-ready.