Ihor P.

Top 3% of Node.js, AI & Backend Engineering Talent on Upwork AI-Native Backend Development for Modern SaaS & Enterprise Products ⚡ 10+ Years of Professional Experience ⚡ AI Agents, Chatbots & LLM Integrations Delivered ⚡ Modern AI Stack: Cursor, Claude Code, GPT-4, Claude Sonnet & Copilot ⚡ 30–40% Faster Delivery Through AI-Assisted Engineering ⚡ Trusted by Startups, SaaS Companies & Enterprise Clients Welcome! 👋 I'm a Senior Node.js Developer, Node.js Backend Developer specializing in scalable, secure, and high-performance backend systems. For 10+ years, I've helped companies architect, build, optimize, and modernize SaaS platforms, enterprise applications, fintech products, healthcare solutions, CRM/ERP systems, and marketplace platforms. From Startup MVPs to enterprise ecosystems, I deliver software designed to scale with business growth. 🔥 WHAT YOU GET ✔ High-Performance Backend systems engineered to process millions of requests with 99.99% uptime. ✔ Production-ready features delivered 30–40% faster using AI-assisted development and AI-generated code workflows. ✔ End-to-End Development—from MVP Development and Product Development to long-term Backend Support and Application Maintenance. ✔ A Dedicated Developer and Technical Lead focused on measurable business outcomes. 🏆 RESULTS & IMPACT ✔ Delivered SaaS Development initiatives, ecommerce solutions, enterprise applications, and real-time systems serving thousands of users worldwide. ✔ Improved API performance by up to 50% through Backend Optimization, Redis caching, and Database Architecture improvements. ✔ Accelerated release cycles by 30–40% using AI-native engineering practices without sacrificing maintainability. ✔ Built Scalable Backend infrastructures capable of supporting millions of transactions and sustained business growth. 🚚 WHERE I DELIVER As a Senior Node.js Developer and Backend Engineer, I build REST API and GraphQL API ecosystems using Node.js, Express.js, NestJS, Fastify, Koa.js, JavaScript, TypeScript, WebSocket, Socket, Microservices, and Event-Driven Architecture. As an API Developer and REST API Developer, I deliver API Development, API Integration, Third-Party API Integration, Authentication, Authorization, JWT, OAuth, SSO, Swagger, OpenAPI, and API Documentation for secure enterprise environments. As a Full Stack Developer, I create Web Applications, Ecommerce Websites, Website Redesign projects, Browser Extensions, Google Chrome Extensions, Desktop Applications, Platform Plugins, Headless CMS, CMS Integration, Odoo Development solutions, and End-to-End Development initiatives. As an AI engineering partner, I help companies implement AI Development through AI Agent Development, AI App Development, AI Bots, Chatbots, ChatGPT Integration, OpenAI API integrations, OpenAI Codex Prompt workflows, AI Model Integration, and AI-generated code strategies that improve team productivity by 30–40%. 💳 INTEGRATIONS & AUTOMATION ✔ 10+ years integrating Stripe Integration, PayPal Integration, Twilio Integration, SendGrid, shipping providers, Payment Integration services, Webhooks, and System Integration workflows. ✔ Built asynchronous architectures using RabbitMQ, Kafka, BullMQ, Queue Management, and Message Queues to improve throughput and reliability. ✔ Automated Data Processing and ETL pipelines that reduce manual effort and support real-time decision-making. ⚒️ TECHNOLOGY ECOSYSTEM ✔ 10+ years of Backend Development using Node.js, Express.js, NestJS, Fastify, JavaScript, TypeScript, Python, PHP, Java, Kotlin, Scala, Ruby, C#, ASP.NET, Django, and modern Software Architecture practices. ✔ 8+ years delivering Full-Stack Development with React, Angular, AngularJS, Vue.js, HTML5, CSS3, Bootstrap, jQuery, Google Analytics, Adobe Photoshop, and Website Optimization strategies. ✔ 10+ years designing Database Development and Database Architecture solutions using MongoDB, PostgreSQL, MySQL, Redis, DynamoDB, Firebase, Supabase, Prisma, TypeORM, Sequelize, Mongoose, Microsoft SQL Server, MariaDB, Oracle, Neo4j, and Azure Cosmos DB. ✔ 7+ years deploying cloud-native applications with Amazon Web Services (AWS), Lambda, EC2, S3, Azure, Google Cloud Platform, Docker, Kubernetes, DevOps, Serverless Architecture, GitHub Actions, Jenkins, Git, and CI/CD pipelines. 🤖 AI-ASSISTED ENGINEERING STACK ✔ 5+ years leveraging Cursor, GitHub Copilot, Claude Code, OpenAI ChatGPT, GPT-4, and GPT-4o to accelerate prototyping, debugging, testing, and implementation by 30–40%. ✔ While AI accelerates delivery, critical architecture decisions, scalability planning, and Technical Lead responsibilities remain grounded in 10+ years of engineering experience. 🤝 LET'S BUILD SOMETHING GREAT Whether you need a Node.js Developer, Node.js Backend Developer, Backend Engineer, Full-Stack Developer, API specialist, AI integration partner or Technical Lead I'd be happy to discuss your architecture, roadmap, and next steps.