Do you have an amazing game concept, but need someone who will help you bring it to life? I’ve done it before and yours could be next. ✅ 𝗜𝗳 𝘆𝗼𝘂 𝘀𝗲𝗲 𝘁𝗵𝗶𝘀, 𝗜'𝗺 𝗰𝘂𝗿𝗿𝗲𝗻𝘁𝗹𝘆 𝗮𝘃𝗮𝗶𝗹𝗮𝗯𝗹𝗲 50+ games developed, 5M+ users played my games, 6+ years experience in game development. From an idea to a published game, here’s how I can help you: 🔎 Consultation & Requirements Gathering: Collect and document all your project requirements, including game mechanics, desired features, branding guidelines, and all specific technical requirements. 📜 Game Design & Prototyping: Refine your game concept, create the game design document, design characters and game assets, and develop the initial prototype. 🎨 UI/UX Design: Design the user interface (UI) and user experience (UX) elements, including game screens, menus, and interactions. ⚙️ Development & Implementation: Building and implementing the fundamental game logic, features, and functionalities. 🧪 Testing & Refinement: Conduct thorough testing, identify and fix bugs, and refine gameplay based on feedback. 🚀 Integration & Deployment: Integrate the game with the target platform(s), conduct final testing, and deploy the application. 🤝 Delivery & Support: Deliver the completed game, provide documentation and support materials, and address any remaining feedback. 𝗟𝗶𝗸𝗲 𝘄𝗵𝗮𝘁 𝘆𝗼𝘂’𝗿𝗲 𝗵𝗲𝗮𝗿𝗶𝗻𝗴? 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯 𝘁𝗼 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗙𝗥𝗘𝗘 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗵𝗼𝘄 𝘄𝗲 𝗰𝗮𝗻 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗮𝗺𝗮𝘇𝗶𝗻𝗴 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿 🔎 Here's why clients choose to work with me: ⭐ 𝗧𝗼𝗽 𝗧𝗶𝗲𝗿 𝗧𝗮𝗹𝗲𝗻𝘁: I have extensive experience in big projects and an expert game development team ready to turn your vision to reality. ⭐ 𝗙𝗮𝘀𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Sick of dragging your feet in the market while competitors zoom ahead? With us, you’ll launch your game within schedule - unlike GTA 6. ⭐ 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆: You are not dependent on me! My game development process consists of constant communication and transparency, everything I do is geared to allow you to have full control of everything built. “Andrey has been an incredible asset to our mobile game project. His expertise and dedication exceeded our expectations, and we're excited to continue working with him on phase 2. He consistently delivered high-quality work, met deadlines, and demonstrated great problem-solving skills. His communication was always clear, and he was proactive in providing solutions that enhanced the project. We highly recommend Andrey to anyone looking to build a game.” Raymond, Cooper Law ✅ 𝗜𝗳 𝘆𝗼𝘂 𝘀𝗲𝗲 𝘁𝗵𝗶𝘀, 𝗜’𝗺 𝗰𝘂𝗿𝗿𝗲𝗻𝘁𝗹𝘆 𝗮𝘃𝗮𝗶𝗹𝗮𝗯𝗹𝗲. 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮𝗻 𝗶𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁.

Focused on developing Augmented Reality solutions using Unity3d (C#) and AR SDKs. I have experience in these AR SDKs: - ARFoundation / ARCore / ARkit - Vuforia - Kinect 2/ Azure Kinect DK SDK - Immersal AR SDK - EasyAR - Wikitude - Manomotion - 8thwall - MapBox - XZIMG/DeepAR - MAXST - Vision Lib - VoidAR I constantly learn, so it is not necessarily limited to all of the above-named SDKs. The selection of AR SDK depends on a specific application field. Unrelated to Unity3D: experience with SparkAR - building face filters for Instagram and Facebook.

More than 14 years of experience in .NET software development and the Microsoft Tech Stack. - .NET Framework/.NET Core experience - Expert knowledge and huge background in web development: .NET Core, Blazor, .NET MVC, WebAPI, AngularJS, CSS/Bootstrap. Service oriented architecture, cloud development in Microsoft Azure, Azure Service Bus, Event Grid - Desktop development of WPF, WinForms applications. Windows services, workers, UDP/TCP game servers. - Automation, bots and scraping with Selenium Web Driver - Game development in Unity 3D for desktop and mobile platforms, integrations with Google Play Services, Steam SDK.

I am a Senior Microsoft Software Engineer with 10+ years of professional experience and 12,000+ hours of hands-on work on Upwork, successfully delivering 300+ projects with a 100% Job Success Score and Top Rated status. I specialize in building enterprise-grade software solutions across the Microsoft ecosystem, focusing on Microsoft 365, Azure, and .NET-based applications. My work helps businesses automate workflows, integrate systems, and modernize legacy applications into scalable cloud-ready solutions. My core expertise includes: • Microsoft 365 development and integrations • Microsoft Graph API (Outlook, Excel, Teams, SharePoint integrations) • Office Add-ins (Excel, Word, Outlook using VSTO and Office.js) • Power Automate workflow automation and business process solutions • ASP.NET Core / .NET 8 Web APIs and backend systems • Azure cloud development (Functions, App Services, integration solutions) • OAuth2 / OpenID Connect / Microsoft Entra ID authentication and SSO • Desktop applications using WPF, WinForms, MVVM, and XAML • Cross-platform UI development using .NET MAUI and UWP • Legacy .NET Framework modernization and migration to modern .NET • AI Agents like Co-pilot, Cursor and Claude I also hold industry certifications including: • AWS Certified Developer – Associate • Microsoft Azure Fundamentals (AZ-900) • Microsoft Azure Data Fundamentals (DP-900) I specialize in connecting desktop applications, cloud services, and Microsoft 365 platforms into unified business systems. My focus is not just writing code, but delivering secure, maintainable, and scalable solutions that solve real business problems. Typical projects I work on: • Microsoft 365 integration and automation solutions • Office Add-ins for Excel, Outlook, and Word • Enterprise desktop applications with cloud connectivity • API development and system integrations using Graph API • Power Automate workflow design and optimization • Authentication and identity management systems (Azure AD / Entra ID) • Legacy system modernization and migration to modern .NET architecture I am comfortable working directly with business stakeholders, technical teams, and enterprise environments, and I always focus on clean architecture, performance, and long-term maintainability. If you are looking for a Microsoft ecosystem expert who can bridge desktop, cloud, and Microsoft 365 systems into a single integrated solution, I can help deliver reliable and scalable results.

Top Rated Plus | Top 10 Machine Learning Agency on Upwork | $500K+ Earned | 8+ Years in AI & Software Engineering I'm an AI Engineer building production-grade AI agent and RAG systems, not simple prompt wrappers. With 8+ years in software engineering and AI development and $500K+ earned on Upwork, I hold Top Rated Plus status and our team is ranked among the Top 10 Machine Learning agencies on the platform. I work with companies that need an AI system to actually run in production, handle real user traffic, and stay accurate, not a demo that breaks on the first edge case. As an AI Engineer, my core work covers retrieval-augmented generation pipelines, agentic workflows with tool calling and structured outputs, prompt engineering, and LLM integration with OpenAI, Anthropic, and Gemini APIs. This is the kind of system clients need an AI Engineer for: not a chatbot that answers FAQs, but an agent that retrieves the right information, calls the right tools, and follows through on what the user actually needs, with hallucination reduction and evaluation built in from the start. As a Machine Learning Engineer and Data Scientist, I build systems for structured and time-series data: demand forecasting, anomaly detection, biomedical signal analysis, and structural health monitoring. My data scientist workflow covers Python, scikit-learn, pandas, NumPy, and SciPy alongside deep learning frameworks including TensorFlow, PyTorch, and Keras, with experiment tracking and evaluation metrics to ensure models perform consistently in production. When a project needs predictive or classification models alongside the AI agent itself, I own that layer too as a Machine Learning Engineer. As a Computer Vision Engineer and software engineer, I build object detection, multi-object tracking, pose estimation, and image segmentation systems using OpenCV, YOLO, and deep learning architectures. Where this intersects with the AI Engineer work is in multimodal systems and computer vision agents: I work with Vision Language Models (VLMs) to build AI pipelines that understand images and video, not just text. Most AI Engineers only work with text. I bring production computer vision and deep learning experience on top of the LLM layer, which matters for any product where the AI needs to see, not just read. On the engineering side, I work as a Python developer and software engineer building backend services with FastAPI, vector databases including Pinecone and pgvector, and LangChain or custom orchestration for multi-step agent logic. When a project needs full ownership of both the AI layer and the surrounding application, I work as a Full Stack AI Developer, handling backend APIs, database design, and frontend integration so the AI system ships as a complete product, not just a backend script. I work with a specialized team that includes a computer vision PhD, deep learning researchers, and mathematical optimization specialists. This lets me scope larger systems, split orchestration, retrieval, and evaluation work across the team, and deliver a full AI Engineer and Machine Learning Engineer engagement faster than a solo contributor could, with the software engineering discipline of clean APIs, logging, and testing baked in from day one. Clients typically work with me when they need: - an AI Engineer to build a RAG pipeline, AI agent, or chatbot that actually works in production - a Machine Learning Engineer or Data Scientist to build predictive models or structured data pipelines - a Computer Vision Engineer to add visual understanding or VLM-based reasoning to an AI product - a Software Engineer who understands LLM orchestration, tool calling, vector search, and backend architecture - a Python developer who can own the full stack from model training to deployed API If you need an AI Engineer and a software engineer with the full stack from prompt design to production deployment, let's talk. Main stack: Python, OpenAI API, Anthropic Claude, Gemini, LangChain, LangGraph, LlamaIndex, FastAPI, Pinecone, pgvector, TensorFlow, PyTorch, Keras, OpenCV, YOLO, Docker, PostgreSQL, JavaScript, Git.

Production AI systems are what I build: RAG, agentic workflows, and real-time voice with sub-500ms latency. .NET and Python stacks. 15+ years shipping for production, including Intersight AI (RAG document intelligence on Azure OpenAI) and InTake AI (real-time voice agent on .NET Core + SignalR). Most "AI projects" stall at the gap between a working prototype and a system that holds up under real traffic, real edge cases, and real auditability. That gap is what I close. WHAT I ACTUALLY BUILD RAG systems with hybrid search, structured extraction, and confidence scoring (not just chunk-and-stuff) Agentic workflows where determinism, error recovery, and human-in-the-loop are designed in from day one Real-time voice AI with measured latency budgets across STT, LLM, and TTS Multi-tenant SaaS platforms with proper tenancy isolation, background jobs, and observability Production-grade .NET Core and Python (FastAPI) backends with full CI/CD, monitoring, and rollback paths WHERE I'VE SHIPPED EmpowerNow: an enterprise AI orchestration platform using Python FastAPI microservices. Developed Agentic RAG pipelines with support for Pinecone, Weaviate, Milvus, Qdrant, and Chroma. Intersight AI: Production RAG on Azure OpenAI with LangGraph, structured document extraction, clause-level scoring InTake AI: Real-time voice AI, sub-500ms end-to-end latency, .NET Core + SignalR streaming STT/TTS SkyBoss: Multi-tenant field-service SaaS serving hundreds of companies, Stripe billing, cross-account reporting Eureeca: Global equity crowdfunding platform, KYC/AML compliance SMP Pharmacy: HIPAA-compliant mobile app with EMR integration, RBAC, and audit trails THE STACK I REACH FOR LLM and AI: OpenAI, Azure OpenAI, LangGraph, LangChain, vector databases (Pinecone, ChromaDB, pgvector), structured outputs, evaluation harnesses Backend: Python (FastAPI), microservices, REST and GraphQL APIs, Redis, .NET Core, C#, PostgreSQL, SQL Server Frontend: Angular, React, Next.js, TypeScript Cloud: Azure (Functions, Container Apps, AI Search, App Service), AWS, Docker, Kubernetes basics, CI/CD pipelines HOW I WORK Each milestone ships with a Loom walkthrough and a shared staging environment you can poke at. Weekly written summary covering what shipped, what's blocked, what's next, so you're not chasing for status. I scope before I quote, push back when something won't scale, and write tests on day one rather than as cleanup. GMT+5, response within 2-3 hours during your working day. WHO THIS IS FOR Founders are moving an AI prototype to production. Teams modernizing legacy .NET or SaaS platforms. Companies that need a senior engineer who can own architecture decisions and ship, not just take tickets. If you're building chatbot wrappers or one-off scripts, I'm not the right fit. Happy to jump on a 30-minute Zoom to walk through your architecture and where I'd start.

10+ years of experience in developing applications in Microsoft Dot Net Technologies. *********************************Key Skills************************************** Design Skills: Mocks ups, HTML5 , Twitter Bootstrap, CSS , CSS3 Microsoft Technology Languages: C#, XML, ASMX Web Services, Web API, JQuery, Prototype Framework/Tools: DOTNET 2.0/3.5/4.0/4.5, Visual Studio 2008/2010/2012/2013/2015, MVC (RAZOR), SVN, VSS, TFS ComponentArt, WCF, WPF, Integrations: PDF , Google Maps, Here Maps, Social Networking, GPS Device, RFID Device. Database: SQL Server 2005/2008/2012, SQL AZURE, MySQL.

I am a Unity developer with 15+ years of experience building multiplayer games, mobile games, and AR/VR applications for iOS, Android, and PC. My expertise includes: * Unity 3D & C# * Multiplayer systems (Photon, Mirror, Netcode) * Mobile game development * AR/VR applications * Gameplay systems & UI * Performance optimization * Backend integration with ASP.NET and SQL Server I focus on clean architecture, smooth gameplay experiences, and reliable communication throughout development. I can help with: * Full game development * Multiplayer features * Bug fixing & optimization * AR/VR interaction systems * Cross-platform deployment * Existing Unity project improvements

Startups and enterprises hire me when they need an AI-powered mobile app or immersive XR simulation built to production standard — not a prototype that falls apart after launch. I've delivered Flutter apps with LLM integration, Unity enterprise simulations, and mobile products currently serving real users across multiple markets. What I build: — AI-powered mobile apps (Flutter + OpenAI / Claude / Gemini) Chat assistants, AI coaching apps, LLM-integrated workflows, real-time AI features inside existing apps — Enterprise XR & Unity simulations Training simulations, serious games, AR/VR prototypes for industrial and medical clients, Photon multiplayer, cross-platform deployment — Flutter apps from MVP to App Store Full-cycle development: architecture, Firebase backend, payment integration, App Store + Play Store submission Why clients work with me: → I've maintained a $10K+ long-term engagement for a single client — I'm not a one-project developer → Production-ready code with clean architecture, not copy-paste tutorials → I flag problems before they become blockers, not after → Fast response, honest timelines, zero scope surprises Tech stack: Flutter · Dart · Unity · C# · Firebase · Node.js · OpenAI API · Claude API · Gemini · REST APIs · Photon · AR Foundation · XR Toolkit · .NET · Angular · React · Figma Flutter developer | Flutter app developer | AI mobile app developer | AI app development | Flutter Firebase | Flutter OpenAI integration | Flutter Claude AI | Flutter Gemini | Unity developer | Unity XR developer | Unity AR developer | Enterprise XR simulation | Unity training simulation | Serious game developer | Flutter iOS Android | Mobile app developer | Flutter MVP developer | LLM integration developer | AI chatbot mobile app | Flutter Node.js | Flutter full stack | Unity C# developer | Photon Unity multiplayer | Flutter in-app purchases | App Store submission Flutter | Flutter bug fix | Unity bug fix | Flutter web app | Flutter desktop | AR Foundation Unity | XR Toolkit Unity | Firebase Flutter | Flutter REST API | AI agent mobile app | Flutter Riverpod | Flutter BLoC | Flutter clean architecture

🏆 Top Rated Plus mobile and AI app developer with 15+ years building iOS, Android, Flutter, and React Native apps. I specialize in AI integrations, LLM agents, and automation, with CTO-level experience leading mobile and SaaS product builds. Hi, I'm Aleksandr Vdovichenko, a senior mobile app developer and AI engineer who helps startups, scale-ups, and product teams ship reliable iOS and Android apps and AI-powered SaaS products. I work across native iOS development with Swift and SwiftUI, native Android development with Kotlin, and cross-platform mobile development with Flutter and React Native, and I integrate AI deeply into the products I build. 📱 Mobile App Development I build native iOS apps with Swift and SwiftUI for iPhone, iPad, and Mac, and native Android apps with Kotlin for phones and tablets, as well as cross-platform Flutter and React Native apps that run on both. I take MVPs from idea to App Store and Google Play release, and I handle app refactors, performance optimization, and stability reviews on existing products. My builds routinely include push notifications, deep links, in-app purchases, subscriptions and payments, along with Bluetooth, Apple HealthKit, Google Fit, camera, AR, and offline-first features. On the backend side I handle API integration with GraphQL and REST, Firebase, Supabase, and custom backends. 🤖 AI & Automation I build LLM-powered apps on the OpenAI, Claude, and Anthropic APIs, and I develop autonomous AI agents with multi-step reasoning workflows rather than simple chatbots. I use Claude Code for production AI logic and backend orchestration, and I integrate AI into existing iOS, Android, and SaaS products. My work here includes Whisper-based voice features, OCR, computer vision, and pose estimation, AI automation pipelines with n8n, Make, and custom serverless workflows, and retrieval-augmented generation with embeddings, vector databases, and intelligent search across fitness, health, fintech, and social apps. ⚡️ No-Code & Low-Code Speed For founders who need to validate fast, I combine native skills with modern no-code and low-code stacks. I build full SaaS platforms in Bubble, cross-platform mobile MVPs in FlutterFlow, and rapid prototypes with Lovable, Replit, Bolt.new, and v0. I use Webflow for marketing sites and scalable web apps, Adalo, Glide, and Airtable for lightweight no-code products, Capacitor and Expo for hybrid deployment, and Supabase, Firebase, and Vercel for backend and hosting. 🎯 Industries I work across SaaS platforms, fintech and trading apps, health and fitness apps, mental wellness, telemedicine, social and dating apps, e-commerce and marketplaces, food delivery, education, and AI-first products. 🤝 How I Work I give clear architecture and tech stack recommendations from day one, deliver predictably with regular demos and progress reports, and write clean, maintainable code your future team can pick up. I focus on App Store and Google Play compliance, performance, and stability, and I stay on for long-term maintenance and scaling support. If you're planning a new mobile app, an AI-powered SaaS, an MVP, or scaling an existing product, let's discuss your goals and define the right approach. 💌 Send a message and let's build something that ships and scales.