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Senior Unity Engineer (10+ years) shipping games and interactive apps across mobile, PC, and WebGL, with C# software architecture and performance optimization as daily practice. I thrive on complex problems and have a keen eye for detail—whether that's refactoring tangled codebases into clean architectures, removing performance bottlenecks, or integrating production features like MediaPipe and LLM APIs. Recent work: • Gamified Music Learning App — VContainer dependency injection, MessagePipe pub/sub events, TDD with 1.7:1 test-to-code ratio, zero-allocation performance patterns • Mosquito Coast — multi-screen interactive framework (patented) • Ablizmo / "OVERLODE" — real-time RTS/deck-building UI overhaul + systems work • Atomic Starman — narrative tooling pipeline (Articy + Dialogue System), Git LFS workflow setup as tech lead • Earlier: WebGL 3D medical visualization, mobile simulation apps, gameplay systems & bug fixing What I do best: 🧩 Gameplay / UI Systems • Modular C# systems, state machines, event-driven architecture • UI architecture (MVC/MVVM), responsive UX, tooltips, menus, data-driven UI 🚀 Performance & Stability • Profiling CPU/GPU, reducing GC/memory spikes, smoothing frame time • Pragmatic refactoring that improves stability without risky rewrites 🛠 Architecture, Testing & Tools • DI frameworks (VContainer, Zenject) for decoupled, testable systems • Unit testing discipline — extracting game-critical logic into pure C# classes for high-confidence refactoring • Turning large/legacy code into maintainable modules; Git workflow setup (LFS, branching, code review) • Editor tools + workflow improvements to speed up teams 🤖 AI / LLM Integrations (when useful) • Integrating APIs (OpenAI/Claude), prompt + data flow design, guardrails • I also use modern coding assistants to speed up delivery while keeping code production-ready How I work: I'm MVP-first: identify the highest-impact tasks, prototype quickly to de-risk, then build scalable solutions. I'm comfortable in distributed teams, communicate directly, and I'm not afraid to dive deep into debugging. What I'm looking for: • Gameplay programming, UI & systems development • Optimization, stabilization, refactoring legacy projects • Mobile & WebGL projects • Internal tools development • AI-assisted features, AR prototypes If you want a senior Unity developer who can ship fast, improve code quality, and make your project stable and scalable — I'd love to help.

🚀 13+ years of experience, with a focus on long-term client relationships 👨‍🔬 Education in Computer Science with deep understanding of how things work 🌟 100% Job Success score, fluent in English ✅ 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝘁𝗮𝗸𝗲 𝗼𝗳𝗳 𝘆𝗼𝘂𝗿 𝘀𝗵𝗼𝘂𝗹𝗱𝗲𝗿𝘀: • Custom Shopware 6 𝗽𝗹𝘂𝗴𝗶𝗻 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 (4 years of experience) • Full 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗺𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 of your online store • Major 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 for high-loaded stores/marketplaces (especially, Black Friday prep) • Setting up complex product 𝗶𝗺𝗽𝗼𝗿𝘁 𝗮𝗻𝗱 𝗲𝘅𝗽𝗼𝗿𝘁 𝗳𝗲𝗲𝗱 workflows • 𝗔𝗣𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 of all kinds: ERPs, payment gateways, shipping services, CRMs, WMSs, you name it • 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝘂𝗽𝗴𝗿𝗮𝗱𝗲𝘀 𝗮𝗻𝗱 𝗺𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 with zero data or functionality loss (and I only recommend it when it’s truly necessary!) • Deep troubleshooting and detective-mode 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴 for issues that have been haunting you for ages ⚡ My superpower is solving complex cases. I'm not just a "task-doer" or a "code-writer", I love thinking strategically and several steps ahead to not just fix the current issue, but to prevent the next one. Feel free to ask for reference contacts of our clients from your country. 🌟 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝘁𝗮𝘆 𝘄𝗶𝘁𝗵 𝗺𝗲 𝗮𝗻𝗱 𝗺𝘆 𝘁𝗲𝗮𝗺 𝗳𝗼𝗿 𝘆𝗲𝗮𝗿𝘀: ✔ We are really good at communication and we never disappear :) ✔ Their stores start earning more and more after we remove technical obstacles ✔ We communicate upfront if anything might affect deadlines ✔ We value high agency and proactive problem-solving ✔ We take responsibility and always look for the most optimal way forward, not just blindly “doing the tasks” 🔧 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • Back-end: Shopware 6, Symfony, Laravel, PHP, Yii, MODX, WordPress, CS-Cart • Front-end: Shopware Frontends, Twig, Smarty, Vue, React • Databases: high-load MySQL, deep indexing, Elasticsearch, Redis • Integrations: dozens (if not hundreds) of payment gateways, shipping providers, ERPs, WMSs, marketing tools, marketplaces, analytics platforms, etc. • Also Git, Docker, Jenkins, Kubernetes, PHP-FPM, Cloudflare, OAuth, REST • DBAL, DRY, SOLID, TDD 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝘀𝘁𝗼𝗽 𝗱𝗿𝗼𝘄𝗻𝗶𝗻𝗴 𝗶𝗻 𝗿𝗼𝘂𝘁𝗶𝗻𝗲 𝘁𝗮𝘀𝗸𝘀? 𝗡𝗲𝗲𝗱 𝗮 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿? Drop me a message and I would be genuinely happy to help. P. S. If you carefully read all of this, make sure to mention whiskey in your message. I’ll send you a bottle to celebrate our first completed milestone! ;)

✅ 𝐇𝐨𝐰 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮: ➜ Grow your business with top-tier software development support. ➜ Bring your ideas—or new features for your existing product—to market faster and smoother. ➜ Optimize your development processes, making them more efficient and cost-effective with a streamlined app development workflow. ✅ 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐩𝐫𝐨𝐯𝐢𝐝𝐞: • 𝐂𝐥𝐨𝐮𝐝 𝐌𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐰𝐢𝐭𝐡 𝐀𝐳𝐮𝐫𝐞 𝐚𝐧𝐝 𝐀𝐖𝐒 • 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐈𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 • .𝐍𝐄𝐓 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤 & .𝐍𝐄𝐓 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • 𝐌𝐢𝐠𝐫𝐚𝐭𝐢𝐧𝐠 .𝐍𝐄𝐓 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤 𝐭𝐨 .𝐍𝐄𝐓 𝐟𝐨𝐫 𝐢𝐦𝐩𝐫𝐨𝐯𝐞𝐝 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲 • 𝐀𝐒𝐏.𝐍𝐄𝐓 𝐖𝐞𝐛 𝐀𝐏𝐈 (𝐑𝐄𝐒𝐓𝐟𝐮𝐥) • 𝐀𝐒𝐏.𝐍𝐄𝐓 𝐌𝐕𝐂 • 𝐀𝐳𝐮𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 • 𝐃𝐨𝐜𝐤𝐞𝐫 & 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐟𝐨𝐫 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭𝐬 • 𝐇𝐢𝐠𝐡-𝐋𝐨𝐚𝐝 𝐒𝐲𝐬𝐭𝐞𝐦 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 🚀 𝐂𝐈/𝐂𝐃 & 𝐃𝐞𝐯𝐎𝐩𝐬 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: • 𝐂𝐈/𝐂𝐃 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬 𝐰𝐢𝐭𝐡 𝐆𝐢𝐭𝐇𝐮𝐛, 𝐀𝐳𝐮𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐨𝐝𝐞𝐟𝐫𝐞𝐬𝐡 • 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐞𝐝 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 𝐟𝐨𝐫 𝐜𝐥𝐨𝐮𝐝 📊 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: • 𝐒𝐐𝐋 & 𝐍𝐨𝐒𝐐𝐋 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: 𝐌𝐒𝐒𝐐𝐋, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐂𝐨𝐬𝐦𝐨𝐬 𝐃𝐁 📡 𝐄𝐯𝐞𝐧𝐭-𝐃𝐫𝐢𝐯𝐞𝐧 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞: • 𝐊𝐚𝐟𝐤𝐚 & 𝐀𝐳𝐮𝐫𝐞 𝐄𝐯𝐞𝐧𝐭 𝐇𝐮𝐛𝐬 𝐟𝐨𝐫 𝐫𝐞𝐚𝐥-𝐭𝐢𝐦𝐞 𝐝𝐚𝐭𝐚 𝐬𝐭𝐫𝐞𝐚𝐦𝐢𝐧𝐠 𝐚𝐧𝐝 𝐝𝐢𝐬𝐭𝐫𝐢𝐛𝐮𝐭𝐞𝐝 𝐦𝐞𝐬𝐬𝐚𝐠𝐢𝐧𝐠 🔗 𝐀𝐮𝐭𝐨𝐝𝐞𝐬𝐤 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: • 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐯𝐞 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐰𝐢𝐭𝐡 𝐀𝐮𝐭𝐨𝐝𝐞𝐬𝐤 𝐓𝐚𝐧𝐝𝐞𝐦, 𝐑𝐞𝐯𝐢𝐭, 𝐀𝐮𝐭𝐨𝐂𝐀𝐃, 𝐚𝐧𝐝 𝐀𝐮𝐭𝐨𝐝𝐞𝐬𝐤 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 (𝐟𝐨𝐫𝐦𝐞𝐫𝐥𝐲 𝐅𝐨𝐫𝐠𝐞) • 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐨𝐟 𝐜𝐮𝐬𝐭𝐨𝐦 𝐑𝐞𝐯𝐢𝐭 & 𝐀𝐮𝐭𝐨𝐂𝐀𝐃 𝐩𝐥𝐮𝐠𝐢𝐧𝐬 𝐟𝐨𝐫 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 • 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐀𝐮𝐭𝐨𝐝𝐞𝐬𝐤 𝐀𝐏𝐈𝐬 𝐰𝐢𝐭𝐡 𝐜𝐥𝐨𝐮𝐝 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 & 𝐦𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 👍 Feedback Daniel Myers: “⭐️⭐️⭐️⭐️⭐️ Our MVP for the integration of our product with Autodesk Tandem was a huge success! It received fantastic feedback at Autodesk University 2024, and we gained new customers thanks to the seamless integration and innovative approach.” Erik Hagen: “⭐️⭐️⭐️⭐️⭐️ Migrating our legacy .NET Framework application to .NET Core was a game changer. Performance, security, and maintainability improved dramatically. Excellent work!” Lucas Bennett: “⭐️⭐️⭐️⭐️⭐️ The custom Revit and AutoCAD plugins significantly optimized our workflows. Automation saved us countless hours and improved accuracy across projects.” Anders Holm: “⭐️⭐️⭐️⭐️⭐️ The microservices architecture built for our project was top-notch! Everything was seamlessly deployed to Kubernetes (kube8) with Azure integration, making our system highly scalable and resilient. Performance improved significantly, and deployments are now fully automated. Exceptional work!” 🚀 How I Work – Delivering Value to You 1️⃣ Understanding Your Needs – Ensuring a Perfect Fit Every project starts with a clear understanding of your goals, challenges, and vision. This ensures the solution is tailored to your business needs, minimizing miscommunication and unnecessary revisions. 2️⃣ Technical Planning – A Clear Roadmap to Success A well-structured technical plan defines the best technologies, architecture, and development strategy. This approach reduces risks, optimizes costs, and ensures a scalable, future-proof solution. 3️⃣ MVP Development – Fast Results with High Impact Delivering a functional Minimum Viable Product (MVP) allows you to test core features early, validate ideas, and start seeing value quickly without waiting for full development cycles. 4️⃣ Feedback & Refinements – Tailored to Your Needs Incorporating your feedback early ensures the final product is user-friendly, efficient, and aligned with your expectations, leading to a solution that works exactly as you need it. 5️⃣ Final Delivery & Support – A Reliable Long-Term Solution The final product is fully optimized, seamlessly integrated, and ready for real-world use, with ongoing support available to keep your system running smoothly. 💡 Ready to start? Click “Invite” on my profile, and let's build something great together! BEST REGARDS, VOLODYMYR D. Keywords: .NET Backend Developer,Azure Backend Developer,C# Backend Developer,Microservices Backend Engineer,ASP.NET API Developer,Azure Functions Backend Developer,Azure Kubernetes Service Engineer,Azure Event Hubs Backend Developer,Azure Service Bus Backend Developer,Azure SQL Database Engineer,Azure Cosmos DB Software Engineer,Azure Bicep Backend Developer,Cloud Migration Backend Engineer,High-Load Systems Engineer,Distributed Systems Backend Developer,Autodesk API Backend Developer,Revit Plugin Backend Engineer,AutoCAD Backend Developer,Azure DevOps Backend Developer

Many products fail not because of bad execution, but because the underlying system was never clearly defined. I work at the stage where ideas must become living, structured systems. With 20+ years in software development, I design business and product systems that can actually function, scale, and hold real operational load. 💡 What I do Having grown from a software developer to a System Architect and Product Manager, I naturally see what others often miss: the gap between a "cool idea" and a working business process. I turn vague visions, disconnected workflows, and implicit assumptions into: ✔ clear system structures ✔ defined business logic ✔ executable product architecture This is not just an analysis.
 This is the system definition. 🚀 Where I create the most value ✔ When a startup idea needs structured validation ✔ When a product concept exists, but cannot yet be built reliably ✔ When workflows between operations, product, and finance don’t align ✔ When development is at risk of building on unvalidated assumptions ✔ When the system needs to handle real-world complexity, not just a “happy path” 🔍 My approach I start by reconstructing the real operating model behind the idea. Then I define: ✔ what events must exist in the system ✔ how data flows between them ✔ how business logic translates into system behavior ✔ where inconsistencies or risks will break the system The goal is not documentation. The goal is a system that can be implemented without collapsing under real-world conditions. 📊 Typical outcome ✔ A clear system architecture (not just descriptions) ✔ Defined business logic and workflows ✔ Eliminated ambiguity for development ✔ Identified structural risks before they become expensive mistakes ✔ A system definition that can be directly implemented 🎯 Core expertise ✔ Product & System Architecture ✔ ERP / CRM / Operational Systems ✔ Multi-sided Platforms ✔ Business Process Design ✔ Data-driven Systems (SQL-based environments) 💼 Selected projects 1. Enterprise Systems:
 ✔ Trade warehouse management systems (multiple enterprise implementations).
 ✔ Healthcare management software (health resort management).
 ✔ Blood transfusion station management system. 2. Startup / Platform ✔ Multi-sided wedding & event planning platform connecting couples, venues, vendors, and travel agencies. 3. Mobile Product ✔ Feature development for a wellness mobile app (Challenges, Statistics module). ⭐ What makes me different I don’t just analyze ideas. I define the structure that allows them to work in reality. 🌿 Professional values: - Respectful and collaborative communication - Stress-Free Environment

Hi My name is Oleksander, I'm happy to help you with the development of your next gem. Please, refer to my skills below. I'm open to chat if you have any questions. Experience: 14yrs Areas: - Generative AI pipelines Development/Engineering - Agentic AI pipelines Development/Engineering - DEVOPS/MLOPS (Cloud infrastructure provisioning/automation) - CICD (Setup of build/deploy pipelines for classical web apps, servers, ML models) Technology stack: - Stable Diffusion, Stable Diffusion XL, FLUX, Controlnet, LoRa (Kohya) - diffusers, comfy training/inference libraries - CUDA Docker images - Pytorch/Tensorflow - GCP/AWS cloud providers - Terraform - Python/Nodejs I Would be happy to help you :D

I focus on helping startups and businesses to leverage AI and adapt to modern software industry which is now more accessible than ever. That includes full-stack development, AI automation, prototyping, custom development and of course taking over what you already built and turning it into production grade solution. 🔐 𝗞𝗲𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: 1. Full-stack development — end-to-end product building, front to back 2. AI automation — streamlining workflows and processes with AI 3. Prototyping — fast, working proof-of-concepts to validate ideas 4. Hardening — taking over what you've already built and turning it into a production-grade solution 🌠 My background is in custom software development, and I spent a while working as a hands-on engineer. I was lucky enough to spend my entire career working with fast-growing, large-scale, and enterprise clients, representing an outsourcing vendor. 🌌 Apart from development activities, I was engaged in many others: interviewing engineers, participating in pre-sales, training programs, leading and driving development processes, and much more. I was always a company guy and was interested in and open to everything. 👴🏻 That’s where I matured as an engineer. I learned a lot along the way, saw how painful the software development process could be, and understood the pros and cons of different organizations, including where Fortune 100 companies struggle. 📺 I’m a professional engineer focused on delivering business outcomes for you — not a part-time freelancer juggling Upwork with a full-time job or doing it for extra income. I'm working with all types of clients and budgets. ✅ 99% Job Success Score; 100 + projects delivered — from idea to production-ready software 🛡 Expert-Vetted — interviewed and approved by the Upwork team 🚀 Fastest-Growing Upwork Profile Globally — $4M+ earned across multiple profiles since 2022 🌍 Most Recognized & Viewed Upwork Profile Worldwide 💰 Scaled 5 Upwork Profiles to $300K+ revenue each with strong inbound leads 🏢 Delivered Projects for Fortune 100 & Inc. 5000 Companies and UAE government 🧠 Led Pre-Sales, Estimations, Code Reviews & Tech Interviews for top-tier clients 💻 Even if we don’t end up working together, I’ll help you identify risks and guide you on how to make the product happen — because in the end, it’s all about mindset, not just coding skills. 💡 Answering a question how am I different in this competitive AI industry — the answer is simple: mindset. You can learn endless frameworks, libraries, languages — alright, cool, but mindset and deep understanding of this world outside and inside the industry is what really makes a difference. Keywords: Full Stack Development, Full Stack Developer, Web Application, SaaS Platform, MVP Development, React, Next.js, Node.js, TypeScript, REST API, API Integration, PostgreSQL, MongoDB, Authentication, User Management, Admin Dashboard, Backend Services, Payment Integration, Stripe Integration, Subscription Management, Role-Based Access, Scalable Applications, Production-ready, Performance Optimization, System Architecture, Enterprise