Yurii S.

𝟔+ 𝐲𝐞𝐚𝐫𝐬 𝐢𝐧 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • 𝐁𝐮𝐢𝐥𝐭 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 𝐮𝐬𝐞𝐝 𝐛𝐲 𝐦𝐢𝐥𝐥𝐢𝐨𝐧𝐬 • 𝐂𝐫𝐞𝐚𝐭𝐞𝐝 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐧𝐠 𝟓𝟎-𝟖𝟎% 𝐨𝐟 𝐫𝐞𝐩𝐞𝐭𝐢𝐭𝐢𝐯𝐞 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 • 𝐖𝐨𝐫𝐤𝐞𝐝 𝐨𝐧 𝐑𝐀𝐆 𝐰𝐢𝐭𝐡 𝐡𝐲𝐛𝐫𝐢𝐝 𝐫𝐞𝐭𝐫𝐢𝐞𝐯𝐚𝐥 𝐚𝐧𝐝 𝐚 𝟔𝟗-𝐬𝐜𝐞𝐧𝐚𝐫𝐢𝐨 𝐫𝐞𝐠𝐫𝐞𝐬𝐬𝐢𝐨𝐧 𝐬𝐮𝐢𝐭𝐞. Senior Full Stack Developer building and scaling web, mobile, SaaS, and AI-powered products from MVP to production. I work across frontend, backend, mobile, APIs, databases, integrations, and cloud infrastructure. A growing part of my work is focused on AI automation, connecting LLMs and AI agents with CRMs, APIs, internal tools, business data, and existing products. • 100% Job Success • Top Rated Plus • Up to 3x faster feature delivery with AI-assisted development • ~1,000 recurring manual actions eliminated, saving 20-25 hours per week on a recent automation project • eCommerce products serving 100K+ monthly users • Full Stack ownership across frontend, backend, mobile, AI, databases, APIs, integrations, and cloud 📌 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐈𝐄𝐒 AI • FinTech • Crypto & Web3 • SaaS • eCommerce • Marketplaces • Travel • Healthcare 📌 𝐒𝐄𝐑𝐕𝐈𝐂𝐄𝐒 • Full Stack development with React, Next.js, Node.js, TypeScript, NestJS, and Express • SaaS and MVP development from architecture and database design to production • React Native, Expo, and Capacitor development for iOS and Android • Backend development, REST APIs, GraphQL, authentication, payments, subscriptions, and third-party integrations • PostgreSQL, MongoDB, Firebase, Supabase, and database architecture • AI agents, AI automation, LLM integrations, RAG, and AI-powered product features • n8n and API-based workflow automation for business processes and internal tools • AWS, Docker, CI/CD, testing, monitoring, App Store, and Google Play releases • Existing product development, refactoring, performance improvements, and technical support 📌 𝐒𝐄𝐋𝐄𝐂𝐓𝐄𝐃 𝐖𝐎𝐑𝐊 𝑭𝒍𝒚𝒕𝒊𝒎𝒆 | 𝑺𝒂𝒂𝑺 & 𝑷𝒓𝒐𝒋𝒆𝒄𝒕 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 Built a project management platform with workspaces, Gantt charts, milestones, task dependencies, permissions, real-time collaboration, chat, dashboards, and Stripe and PayPal billing using Next.js, Node.js, MongoDB, and AWS. 𝑾𝒉𝒐𝑷𝒂𝒚𝒔 | 𝑴𝒐𝒃𝒊𝒍𝒆 & 𝑨𝑰 Built a cross-platform product supporting 150+ currencies with AI receipt scanning, voice input, expense splitting, balance tracking, and real-time synchronization across mobile and web. 𝑪𝒓𝒆𝒂𝒕𝒊𝒗𝒊𝒐 | 𝑨𝑰 𝑺𝒂𝒂𝑺 Worked on an existing AI product, migrated its AI engine, and built workflows for background removal, scene generation, inpainting, upscaling, and text extraction. 𝑴𝒚𝒏𝒕𝒌𝒂𝒖𝒑 | 𝑾𝒆𝒃, 𝑴𝒐𝒃𝒊𝒍𝒆 & 𝑾𝒆𝒃3 Built mobile and web functionality for a platform used by 20,000+ customers, including trading flows, real-time data, biometrics, secure authentication, QR deposits, and Web3 integrations. The app reached #1 in Finance on the Icelandic App Store. 💡 𝐖𝐇𝐀𝐓 𝐈 𝐇𝐄𝐋𝐏 𝐒𝐎𝐋𝐕𝐄 • launch a web, mobile, or SaaS MVP with a scalable technical foundation • build and scale features across frontend, backend, mobile, APIs, and databases • take ownership of an existing React, Next.js, Node.js, or React Native product • add AI agents, AI automation, RAG, or LLM functionality to an existing product • automate workflows across APIs, CRMs, databases, and internal tools • integrate payments, authentication, third-party APIs, and real-time functionality • improve architecture, performance, stability, deployment, and maintainability • reduce technical debt slowing down product development I can work as a Senior Full Stack Developer across web and mobile, own a complete feature or product area, or support an existing engineering team with hands-on development and technical decisions. 🚀 𝐋𝐄𝐓'𝐒 𝐓𝐀𝐋𝐊 Send me your product, codebase, or requirements. I'll review the scope, identify the main technical challenges, and suggest the most practical way to move forward. full stack ai developer, ai developer, ai engineer, ai automation, ai automation developer, workflow automation, workflow automation developer, n8n developer, n8n automation, ai agent, ai agent developer, llm developer, llm integration, rag developer, rag, conversational ai, crm automation, api automation, api integration, openai developer, full stack developer, fullstack developer, senior full stack developer, react developer, node.js developer, react node developer, react native developer, react native expo, mobile app developer, next.js developer, typescript developer, saas developer, web developer