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I build production-ready backend systems that scale. Recently shipped platforms serving 50M+ users at VNG Corporation with 99.9% uptime. ✓ 3 years at VNG Corp (Vietnam's #1 tech company) — game servers handling thousands CCU, payment integration across SEA markets ✓ Full-stack: Node.js, Python, TypeScript, Next.js, React ✓ DevOps: Docker, Linux, systemd, CI/CD — air-gapped RHEL 9.6 deployments ✓ UTC+7 timezone — your code ships while you sleep, 3-4hr overlap with AU/EU business hours What I do best: • Backend architecture — Node.js/Python APIs, dual-DB systems, payment gateways (Stripe, Google/Apple IAP) • DevOps — Docker multi-shard migrations, systemd service management, SSH-based monitoring tools • AI integration — OpenAI gateway streaming, AI-powered CRM, OCR automation pipelines I work independently, communicate proactively in clear English, and treat your project like my own. No hand-holding needed — I'll flag risks early, suggest improvements, and deliver on time. Let's discuss your project — send me a message and I'll respond within the hour.

𝟱+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗨𝗻𝗶𝘁𝘆 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 | 𝗨𝗻𝗿𝗲𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲 | 𝗖# | 𝗖++ Hi, I’m Victoria, a game developer specializing in Unity and Unreal Engine. I work on games at different stages from early prototypes and MVPs to production-ready projects and existing games that need new features, optimization, or technical support. I can take care of a specific development task, join your existing team, or help build a project from the ground up. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵: 𝗚𝗮𝗺𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Gameplay mechanics, game systems, UI, integrations, architecture, and general development in Unity and Unreal Engine. 𝗠𝗼𝗯𝗶𝗹𝗲 𝗚𝗮𝗺𝗲𝘀 Development for iOS and Android, including SDK integrations, monetization, analytics, in-app purchases, and store preparation. 𝗣𝗖 𝗚𝗮𝗺𝗲𝘀 Gameplay development, systems, optimization, integrations, and support for Windows and macOS projects. 𝗪𝗲𝗯𝗚𝗟 Browser-based games and interactive experiences, with a focus on performance, loading times, memory usage, and browser limitations. 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗶𝗻𝗴 & 𝗠𝗩𝗣𝘀 Quickly turning an idea or gameplay mechanic into a playable prototype to validate the concept before moving into full production. 𝗘𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 Already have a game in development? I can join the project, work with the existing codebase, implement new features, refactor systems, fix issues, and help move the project toward release. 𝗕𝘂𝗴 𝗙𝗶𝘅𝗶𝗻𝗴 & 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 Finding and fixing gameplay bugs, crashes, performance issues, memory problems, FPS drops, and other technical challenges. 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗮𝘆𝗲𝗿 Networked gameplay and multiplayer features using Photon, Firebase, REST APIs, WebSockets, and other solutions. 𝗣𝗹𝗮𝘆𝗮𝗯𝗹𝗲 𝗔𝗱𝘀 Development of lightweight and interactive playable ads for mobile advertising networks. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 My main development stack includes 𝗨𝗻𝗶𝘁𝘆, 𝗖#, 𝗨𝗻𝗿𝗲𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲, 𝗖++. With Unity, I regularly work with 𝗭𝗲𝗻𝗷𝗲𝗰𝘁, 𝗨𝗻𝗶𝗧𝗮𝘀𝗸, 𝗦𝗰𝗿𝗶𝗽𝘁𝗮𝗯𝗹𝗲 𝗢𝗯𝗷𝗲𝗰𝘁𝘀, 𝗦𝗵𝗮𝗱𝗲𝗿 𝗚𝗿𝗮𝗽𝗵, 𝗩𝗙𝗫 𝗚𝗿𝗮𝗽𝗵, 𝗣𝗮𝗿𝘁𝗶𝗰𝗹𝗲 𝗦𝘆𝘀𝘁𝗲𝗺𝘀, 𝗙𝗠𝗢𝗗, and other tools used in production. For backend and integrations, I have experience with 𝗙𝗶𝗿𝗲𝗯𝗮𝘀𝗲 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗥𝗲𝗮𝗹𝘁𝗶𝗺𝗲 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲, 𝗙𝗶𝗿𝗲𝘀𝘁𝗼𝗿𝗲, 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜𝘀, 𝗪𝗲𝗯𝗦𝗼𝗰𝗸𝗲𝘁𝘀, 𝗮𝗻𝗱 𝘁𝗵𝗶𝗿𝗱-𝗽𝗮𝗿𝘁𝘆 𝗦𝗗𝗞𝘀. For monetization and analytics: 𝗔𝗱𝗠𝗼𝗯, 𝗔𝗽𝗽𝗼𝗱𝗲𝗮𝗹, 𝗜𝗿𝗼𝗻𝗦𝗼𝘂𝗿𝗰𝗲, 𝗜𝗻-𝗔𝗽𝗽 𝗣𝘂𝗿𝗰𝗵𝗮𝘀𝗲𝘀, 𝗮𝗻𝗱 𝗚𝗮𝗺𝗲𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀. I work with 𝗔𝗻𝗱𝗿𝗼𝗶𝗱, 𝗶𝗢𝗦, 𝗪𝗶𝗻𝗱𝗼𝘄𝘀, 𝗺𝗮𝗰𝗢𝗦, 𝗮𝗻𝗱 𝗪𝗲𝗯𝗚𝗟 and can also help with Google Play and App Store releases. 𝗔𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 Game development often requires more than programming. When a project needs it, I can also involve trusted specialists from my team for 𝗨𝗜/𝗨𝗫, 𝟮𝗗/𝟯𝗗 𝗮𝗿𝘁, 𝗮𝗻𝗶𝗺𝗮𝘁𝗶𝗼𝗻, 𝗩𝗙𝗫, 𝗤𝗔, 𝗯𝗮𝗰𝗸𝗲𝗻𝗱, 𝗼𝗿 𝗮𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁. This allows you to have one main point of contact while still getting access to the additional expertise your project may need. I’m comfortable working independently, joining an existing development team, or taking responsibility for a larger part of the production process. If you already have a project, feel free to share the current build, repository, requirements, or simply tell me what you’re trying to build. 𝗜’𝗹𝗹 𝘁𝗮𝗸𝗲 𝗮 𝗹𝗼𝗼𝗸 𝗮𝗻𝗱 𝘄𝗲 𝗰𝗮𝗻 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝘄𝗮𝘆 𝘁𝗼 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵 𝗶𝘁.

I like to solve problems. 6 years experienced programmer, mainly in game developing area. Programming languages: C++, GDScript, Java, Android, PHP, JavaScript, Python, Lua, Bash script. Platform: Windows, Android, Web. Frameworks: Cocos 2D-X, Godot, Unity, Laravel, Flarum, FilamentPHP.

I started my C# career writing diagnostic software for nuclear power plants. Reliability there wasn't a feature. It was the baseline. That habit never left me, and these days it goes into my Unity work: small, focused tasks, full games, and everything in between. 7 years of C#. PC, mobile, VR. I can jump into an existing project, own a standalone system, or take your idea or GDD all the way to a working MVP: planning, architecture, gameplay, UI, integrations, optimization, testing, and builds you can actually play. 🔹 SOME THINGS I'VE BUILT • Godly Survivors, an action roguelite released on Steam. I designed and developed it solo, including custom progression, enemy AI with dynamic difficulty, and runtime world generation. I owned its design and development from first concept to launch. • Expanded a 12-level 3D educational game for kids with new arcade mechanics, story progression, and supporting systems. • Developed VR/XR apps for Meta Quest and Apple Vision Pro with live 360° video, streamed content, and backend integration. • Built mobile games and simulators featuring boat physics with water dynamics, time-stop puzzle mechanics, REST APIs, Firebase, and monetization. • On one optimization job, I cut an app's build size by 5x. I genuinely enjoy profiling and hunting down CPU/GPU bottlenecks. 🔹 WHAT I CAN DO FOR YOU • Build your game from start to finish: indie titles, MVPs, and vertical slices. • Design and code gameplay systems: combat that feels right, enemy AI, abilities, inventory, economy, progression, and save systems. I lean on data-driven configs so designers can tune things without touching code. • Help on the design side too: core loops, balance models, docs a team can implement without guessing, and custom Unity Editor tools when a workflow needs one. • Take over or extend an existing project: new features, bug fixes, refactoring, third-party integrations, and gameplay or UI polish. • Profile and optimize for PC, mobile, and VR. • Handle backend and platform integrations: Firebase, REST APIs, Addressables, IAP, ads, and the SDKs your project needs. 🔹 HOW I WORK Clear milestones, risks raised early, and playable builds throughout instead of one big reveal at the end. AI speeds up implementation and testing; I do the thinking, shape the architecture, and make the final call. You get honest progress updates, documented changes, and code the next developer won't curse at. I care about the product, not just the paycheck. Details matter to me. Whether it's a focused fix, an indie MVP, or something bigger (AAA too, assuming you bring the studio 🙂), send me your idea, GDD, current build, or task description, and I'll help turn it into a working result.

🏆 TOP RATED PLUS | 14+ years in Unity 3D | 20+ shipped projects | .NET & React web apps ✅ Complex .NET backends for websites & games ✅ Unity3D games — mobile, PC & web ✅ React / React Native frontends ✅ Full project ownership: architecture to deployment Need a game or web app delivered fast — without cutting corners on quality? I combine 14 years of senior engineering experience with an AI-accelerated workflow, so you get clean, tested code in less time. WHAT I CAN DO FOR YOU: 🎮 GAME DEVELOPMENT (Unity 3D — 14 years) ✅ Full production cycle: concept → gameplay → App Store & Google Play release ✅ Finishing, fixing and optimizing games started by other developers ✅ Performance profiling & asset optimization (smooth FPS even on low-end mobiles) ✅ Shaders (CG/HLSL), URP/HDRP, Animator, UI, TextMeshPro ✅ Photon multiplayer, In-App Purchases, AdMob, Firebase, PlayFab, Analytics, Localization 💻 WEB DEVELOPMENT (.NET & React — 4 years) ✅ .NET Core / ASP.NET MVC + Entity Framework ✅ React, Angular, TypeScript/JavaScript ✅ Stripe payments, REST APIs, Docker 🤖 AI ADVANTAGE ✅ Software development has changed radically in the last few years — I work the modern way: agentic workflows, human-in-the-loop development, prompt & context engineering. ✅ I use AI tools across my whole workflow — faster prototyping, fewer bugs, quicker delivery. You pay for results, not boilerplate hours. ✅ I can also build AI INTO your product: LLM/ChatGPT integrations, smart NPCs, chatbots, AI content pipelines. WHY CLIENTS CHOOSE ME: 🎓 Master's degree in Software Engineering from one of Poland's top universities🔥 20+ projects delivered for companies and individuals (iOS, Android, PC, web) ✅ One person, full accountability — from first idea to store release ✅ Clear communication, deadlines that hold 📩 Have an idea, a stuck project, or a game that needs rescuing? Send me a message — I'll reply quickly with an honest assessment and a concrete plan. Let's build something your users will love!

I’m a C# developer with 5+ years of experience building and debugging real-time applications, APIs, backend integrations, and Unity/WebGL products. I’m particularly good at jumping into an existing codebase, understanding what’s going wrong, and getting a working solution in place without unnecessary rewrites. What I can help with - C# development, debugging, and bug fixing - REST API and third-party API integrations - WebSocket and real-time communication - JSON, authentication, JWT, and data handling - Firebase, Supabase, and PocketBase integrations - Backend/client communication - JavaScript and WebGL integrations - PlayCanvas and interactive 3D applications - Unity, multiplayer, gameplay, and WebGL systems - Python/FastAPI for smaller backend and API tasks My recent work includes a production trading platform where I worked across the Unity/WebGL client, web frontend, APIs, WebSockets, authentication, matchmaking, wallet/session systems, and live market-data integrations. I’m comfortable taking on a small focused fix, an API integration, debugging an existing system, or a larger feature when needed. If you have something that is broken, not connecting properly, or needs a clean implementation, send me the code and requirements and I’ll take a look.