I help enterprises, founders & funded startups building scalable production grade MVPs, multi-tenant SaaS platforms, AI SaaS, web, mobile, desktop & software applications, internal tools, business process automation systems, data-intensive backend systems & cloud-native platforms designed for scalability, reliability, security, maintainability, observability, and long-term growth. I’m 𝐓𝐨𝐩 𝟏% Senior Full Stack AI & Software Developer (expert vetted by Upwork) with 18 years of ‘traceable experience’ architecting, developing & deploying custom production-grade software platforms, including custom AI-powered SaaS apps I serve as a strategic ‘technology partner’ throughout the SDLC: from product requirements mapping, system architecture design, database design, API strategy, AI integration, and infrastructure planning to front-end & back-end development, full-stack development, cloud deployment, production launch, and ongoing support. I’ve delivered 200+ custom software solutions for Fortune 500 companies, US enterprises, founders, and funded startups across 38 countries, with a strong track record of client satisfaction. My work usually starts with building an MVP from scratch, scaling a product with traction, modernizing a legacy system, rescuing an unstable platform, improving performance, or integrating AI/new product capabilities without disrupting core operations. From there, I convert business goals, ROI expectations, user workflows, compliance needs, budget, and timeline into a development plan covering scope, milestones, architecture, integrations, testing/UAT, and rollout. For founders and funded startups, I help turn early product ideas, business models, and ROI expectations into a focused MVP scope, scalable architecture, launch roadmap, and growth plan without overbuilding too early. I design system, cloud, data, AI, SaaS, security, and integration architectures based on product stage, scalability needs, compliance requirements, operational complexity, and cost. My approach covers practical architecture decisions, secure integrations, tenant isolation, data modeling, AI-ready data foundations, production deployment, observability, reliability planning, and long-term maintainability. Industry & domain experience: I've built & modernized software architecture across Healthcare, EHR, EMR, HIPAA, FinTech, Finance, Banking, Insurance, Sales & Marketing, Education, Legal, Manufacturing, Chemical, Media, Real-estate, Supply-chain, Logistics, Construction, Automotive, Retail, AI SaaS MVP, B2B SaaS, eCommerce, iGaming, Marketplaces,delivery, booking, listing, mobile apps, EdTech, LMS, CRM, ERP, Business process automation, multi-tenant SaaS Platforms Whether you need a skilled development partner to build custom software, integrate AI, modernize legacy systems, or design scalable architecture for long-term growth, feel free to reach out! Our Development Team & Tech Stack: Frontend Dev: React, Next.js, TypeScript, JavaScript, Tailwind CSS, shadcn/ui. Mobile & Desktop Dev: React Native, Flutter, Swift, Kotlin, Electron Game Dev: Unity, C#, Unreal Engine 5, C++, Blueprints, Photon, PlayFab, Roblox Studio, Luau Backend Dev: Node.js, NestJS, Express.js, Python, FastAPI, Django, Java, Spring Boot, Golang APIs: REST, GraphQL, WebSockets, gRPC, OpenAPI, Swagger. Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, Supabase, Firebase Firestore, RDS, Elasticsearch, OpenSearch, Amazon S3. Data Engineering: SQL, Pandas, NumPy, Apache Kafka, RabbitMQ, Apache Airflow, dbt, Apache Spark, Snowflake, BigQuery, Amazon Redshift AI & ML: OpenAI, Claude, Gemini, Llama, Mistral, PyTorch, TensorFlow, Scikit-learn, XGBoost, LightGBM, Hugging Face Transformers, LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, DSPy Vector Search: pgvector, Pinecone, Weaviate, Qdrant, FAISS, Chroma Computer Vision, NLP & AI Voice: OpenCV, YOLO, spaCy, Whisper, Deepgram, ElevenLabs Cloud / DevOps: AWS, GCP, Azure, Docker, Kubernetes, Terraform, GitHub Actions, GitLab CI/CD, Vercel, Cloudflare, Nginx Security / Auth: OAuth2, OpenID Connect, Auth0, Clerk, Okta, JWT, SAML, Vault, AWS Secrets Manager Testing / Monitoring: Jest, PyTest, JUnit, Playwright, Cypress, Postman, Datadog, Grafana, Prometheus, Sentry, OpenTelemetry, CloudWatch Compliance: HIPAA, SOC2, PCI-DSS, GDPR, ISO 27001, NIST, HL7/FHIR, KYC/AML, PII/PHI Software Development Services & Technical Capabilities: Full Stack Development, Software Development, AI Development Team, Front & back end dev, Artificial intelligence, Machine Learning, Deep Learning, Web Development, Web Application, Mobile App, AI native web development, API Integration, Full Stack developer, React & Python developer, AI developer, Web, Mobile & Software Dev, AI SaaS Dev, AI/ML, NLP, LLM, OpenCV, Algorithm, Chatbot, Developer, AI Integration, AI Consultant, OpenAI, AWS, AI Agent Developer, Software Architecture & Design, AI Model Integration, Database Architecture, Solution Architecture

Co-Founder & CEO of IT-Dimension, IT engineer, and project coordinator with deep hands-on expertise. Since 2007, I’ve led the delivery of 600+ custom software products and acted as a technical partner in 10+ SaaS ventures, taking them from idea to scalable success. In IT-Dimension we create software of any complexity to boost business in a wide range of industries: Industry 4.0 & Internet of Things (including Robotics + hardware development), Logistics/Transportation, Media & Entertainment, Healthcare/Wellness, Social Apps, AI Business Automation, GameDev, AR/VR, and far beyond. We offer deep and wide expertise in the following areas: 📌Strategic AI Adoption & Implementation Consulting 📌Web Backend: Node.js, NextJS, Express, Python, C++, .NET Core, ASP.NET Core, PHP, Go, Java, Kotlin 📌Web Frontend: Angular, React, Vue, Blazor 📌Mobile Development: Xamarin, Swift, Objective-C, C++, Kotlin, Java, Flutter, React Native, 📌Desktop Development: C#/.NET, WPF/Xamarin, C++, wxWidgets, Qt 📌UI/UX: User Interface Research, User Scenarios, User Interface Design, Usability Testing, Wireframing, Prototyping, UX Research, UX Writing, App design, web design, Visual Communication, UI/UX audit, custom graphics, brand identity 📌AR/VR: Unity, AR Foundation, AR Kit, AR Core, Kinect, Computer Vision, ML/AI 📌3D Modeling, Animation, Video Montage: Blender, Metahuman, Cinema 4D, Speedtree, DaVinci Resolve, Marmoset 📌Industrial Blockchain Sulutions: Web3.js, Solidity, C++, Go, Rust 📌Hardware Prototyping and Embedded: C, C++, Python 📌Cloud Platforms: AWS, Google Cloud, Azure, Heroku, Docker, DigitalOcean, Kubernetes, Terraform Partnering with IT-Dimension gets you: ❇️ In-depth Technology Consultation ❇️ Professional UI/UX Design ❇️ AI-first approach and AI integrations ❇️ Dedicated Software Development ❇️ Project Management ❇️ Quality Assurance ❇️ Deployment and DevOps Services ❇️ Software Maintenance and Enhancement Why choose IT-Dimension? 🔷 Dedicated multinational onshore/offshore teams (US, Europe located, different time zones) 🔷 16+ years of technological expertise 🔷 Swift and efficient project initiation 🔷 Deep-rooted expertise in 20+ domains 🔷 Personalized project handling 🔷 Innovative thinking for maximizing results

👋 Hi! Looking for a Senior .NET Developer or Full Stack Developer who delivers scalable enterprise systems — not just working code? With 10+ years as a C# .NET Developer, .NET Core Developer, and Full Stack Developer, I design and build production-grade SaaS platforms, CRM systems, legacy migration pipelines, and AI-integrated web applications for FinTech, HealthTech, EdTech, and enterprise clients across North America and Europe. Whether you need a .NET Full Stack Developer to architect a greenfield SaaS product, a React Developer or Angular Developer to rebuild a frontend, or a Senior .NET Developer to modernize aging .NET Framework systems — I cover the full delivery cycle from architecture to deployment. 🏆 What Sets My .NET Full Stack Work Apart 10+ years as a Senior .NET Developer & Senior Full Stack Developer 15+ enterprise platforms delivered: SaaS, CRM, marketplace, portal, and booking platform builds .NET Core / ASP.NET Core / C# .NET architecture across microservices, MVC, and event-driven systems React Developer & Angular Developer — full frontend ownership with TypeScript and JavaScript AI Developer integrations: OpenAI API, Dify, GPT-based automation, AI Agent Development Legacy .NET Framework modernization to .NET Core with zero production downtime HIPAA & GDPR-compliant systems across MedTech, Gov, and FinTech verticals .NET MAUI & Xamarin cross-platform desktop application and mobile application builds API Integration specialist: Stripe, PayPal, GraphQL, REST, gRPC, and third-party SaaS APIs Cloud: Azure Developer & AWS deployments, Docker, Kubernetes, CI/CD pipelines Full Stack SaaS Developer across subscription, marketplace, and document management platforms WordPress Developer for custom business portals and CMS-driven web application builds Node.js & Next.js experience for high-performance API layers and server-side rendering Python Full Stack work on data-heavy analytics and automation pipelines JavaScript Full Stack delivery: React, Angular, Vue.js, Node.js — all in one team 🚀 Selected Projects Norwegian E-Learning Platform (EdTech SaaS) Built as Tech Lead and .NET Full Stack Developer using Vue.js, ASP.NET Core, Azure, and SQL. The Vignita platform scaled to 2,500 companies and 100,000+ employees, embedded in 10+ university programs nationwide. Affiliate B2B Platform "Affaim" (MarTech) Delivered as .NET Developer and Full Stack Developer — multi-tenant architecture, high-load SQL databases, secure partner portals, and Shopify integration. Python Full Stack layer for analytics and data pipelines. Global Payments System "WorldRemit" (FinTech) Migrated legacy .NET systems to modern microservices. Payment gateway integrations, global API layer, and real-time transaction management as .NET Core Developer and Full Stack Developer AI. AI Arbitrage Platform "Sellerbility" Full Stack Developer AI role — built automation logic, OpenAI integrations, React dashboards, and API-driven analytics modules. Multi-Platform Telemedicine System (HealthTech) Mobile App Developer and .NET Developer: .NET Core backend, Blazor, SignalR, Xamarin cross-platform mobile, GDPR-compliant data architecture. 🔧 Core Tech Stack Backend & .NET: C#, .NET Core, ASP.NET Core, ASP.NET MVC, ASP.NET Web API, .NET Framework, .NET MAUI, Blazor, WPF, Entity Framework, SignalR, OAuth2, LINQ, WCF Frontend: React, Angular, Vue.js, Next.js, TypeScript, JavaScript, jQuery, Bootstrap, Tailwind CSS, HTML5, CSS3 Databases: SQL Server, MySQL, PostgreSQL, MongoDB, Redis, Azure SQL, Supabase, Elasticsearch Cloud & DevOps: Azure, AWS, Docker, Kubernetes, Azure App Services, Azure Data Factory, CI/CD, Git API & Integrations: Stripe, PayPal, GraphQL, REST, gRPC, OpenAI, SendGrid, Google Maps, IronPDF, Crypto Exchange APIs, Zendesk, RevenueCat Mobile & Cross-Platform: .NET MAUI, Xamarin, Flutter, Supabase, Firebase Auth, Android, iOS AI & Automation: OpenAI API, Dify AI, AI Agent Development, AI App Development, Machine Learning integration, Python automation CMS & eCommerce: WordPress Developer, Shopify, WooCommerce, CodeIgniter, Laravel (PHP integration layer) 💡 Results at a Glance ✅ 100,000+ users onboarded via SaaS platforms I architected ✅ Legacy .NET Framework systems modernized to microservices with zero downtime ✅ HIPAA & GDPR compliance delivered across healthcare and government platforms ✅ AI integrations reducing manual processing workload by 60%+ ✅ Cross-platform desktop application and mobile application shipped from a single C# codebase ✅ 12+ payment gateway and API Integration implementations across FinTech and eCommerce ✅ Database architecture supporting 100M+ records with sub-200ms query performance Open to Senior .NET Developer, C# Developer, .NET Core Developer, Full Stack Developer, React Developer, Angular Developer, Full Stack SaaS Developer, AI Developer, JavaScript Developer or Web Development engagements — long-term preferred, fixed-scope welcome. 📆 Last Updated: 06/26

🔵 14+ years developing first-class web, mobile and AI apps that achieve business goals and hit the mark. As an AI developer and web developer, my expertise led my team to work with Fortune 500 companies such as Philip Morris, Coca-Cola, DANONE, McDonald’s (Ukraine), and Kimberly-Clark. I started as a programmer in 2006. Now, I'm CTO at Brights — a software company focused on web, mobile and AI products, with 120+ Mobile app developer s and Web developer s who specialize in AI Chatbot systems, advanced AI Integration solutions, AI Saas and Mobile app development. As a deal closer, I also work closely with clients during product strategy and delivery. At Brights, we support companies through every stage of development backed by experienced AI developer, AI Chatbot, AI API Integration, Mobile app developer, and web developer — from MVPs to scaling including AI developer | AI Chatbot | AI API Integration | Mobile app developer. Our experience includes API integration, complex API integrations, and enterprise-grade AI API Integration. Within the last 14 years, I have delivered 300+ projects across fintech, insurtech, healthcare, eCommerce, real estate, education, logistics, and more as an AI developer | AI Chatbot | AI API Integration | Mobile app developer. 👩‍💻 Technical stack I cover as an AI developer | AI Chatbot | AI API Integration | Mobile app developer: Front-end: • Vue.js, React, Angular, Next.js, Redux, react native Back-end: • ASP.NET, PHP, Node.js, GraphQL Mobile: • React Native, iOS, Android, with support from a dedicated Mobile app developer and Flutter developer as well as Mobile game developer Artificial Intelligence tech stack I cover as an AI developer | AI Chatbot | AI API Integration: • Python developer workflows, LangChain, GPT-4o, gpt-3, OpenCV, Hugging Face, RAG, LLM, AI machine learning, and scalable machine learning pipelines Data & Architecture: • PostgreSQL, MongoDB, Redis, Elasticsearch for both mobile app marketing and web • Supported by experienced data scientist and full stack developer teams Integrations: • Analytics, CMS, Swagger, botpress, chatbots, AI API, and automation systems with reliable API integration If you are looking for AI developer | AI Chatbot | AI API Integration or Mobile app developer with strong mobile app design experience (Figma mobile app) - drop me a line.

$100K+ Earned | 42 Jobs Completed | 100% Job Success | 15+ Years of Experience If you need an AI system, SaaS platform, or cloud backend built right the first time - without the back-and-forth, scope creep, and "we'll figure it out later" approach - you're in the right place. ✔️ I work best with founders and product teams who are thinking: - "I need an AI agent or LLM system that actually works in production, not just a prototype" - "I need someone who owns the architecture, not just the code" - "I've been burned by developers who disappear after delivery - I need reliability" - "I need the full stack handled - frontend, backend, DevOps, AI - by one person who gets it all" ✔️ Working with me, you get: 🌟 End-to-end ownership: from system architecture and AI integration to deployment, scaling, and ongoing automation 🌟 Production-grade AI systems: RAG pipelines, multi-agent workflows, LLM integrations using LangChain, OpenAI, and Claude 🌟 Cloud-native infrastructure: AWS, Azure, GCP, Docker, Kubernetes, CI/CD - built to scale from day one 🌟 12+ years of full stack depth: React, Node.js, Next.js, Python, Django, GraphQL, and more ✔️ We might not be the right fit if: ✗ You need the cheapest option available - I focus on quality and long-term value, not the lowest bid ✗ You have no clear vision for what you're building - I work best with founders who know their product direction ✗ You need someone to "just code" without thinking about architecture or outcomes [ INDUSTRIES I'VE BUILT FOR ] - FinTech & Banking | Healthcare & MedTech | LegalTech & Compliance - EduTech & E-Learning | E-Commerce & Retail | Logistics & Supply Chain - Real Estate & PropTech | Travel & Hospitality | InsurTech | Manufacturing & Distribution - Cybersecurity | Media & Publishing | AI/ML & Data Analytics [ WHAT I BUILD ] - AI SaaS Platforms & Multi-Tenant SaaS Applications - AI Agent Systems, Chatbots & LLM-Powered Applications - Booking Platforms, Marketplaces & Customer Portals - ERP, CRM, LMS, EHR & Case Management Systems - Progressive Web Apps (PWA) & Cloud-Native Applications - DevOps Pipelines & Infrastructure Automation [ MY TECH STACK ] - Frontend - React, Next.js, Vue.js, TypeScript, Tailwind CSS - Backend - Node.js, Python, Django, FastAPI, Nest.js, GraphQL - AI & ML - LangChain, OpenAI API, Claude, RAG Pipelines, Multi-Agent Systems - Cloud - AWS, Azure, GCP, Docker, Kubernetes, Terraform, CI/CD - Databases - PostgreSQL, MongoDB, MySQL, DynamoDB, Redis, Elasticsearch - Security - OAuth, JWT, SSL/TLS, OWASP, SonarQube [ CORE SKILLS ] - AI Agent Development | LLM Integration | RAG Pipeline Development - Multi-Agent System Architecture | Full-Stack SaaS Development - Mobile & Web Application Development | API Design & Integration - Cloud Solution Architecture | DevOps & AIOps Engineering - Database Design & Management | Infrastructure as Code (IaC) What I bring that most developers don't - I don't just write code. I make architecture decisions, set up infrastructure, automate the deployment pipeline, and ensure the system scales correctly from day one. You get a single point of ownership across the entire build, not a developer who stops at the code and hands off the rest. If your project involves AI agents, LLM integration, SaaS platform development, or cloud infrastructure - and you need someone who can own it end to end - let's talk. A 20-minute call is usually enough to know if we're a good fit.

👋🏼 𝗬𝗼𝘂'𝗿𝗲 𝗵𝗲𝗿𝗲 𝗯𝗲𝗰𝗮𝘂𝘀𝗲 𝘆𝗼𝘂 𝘄𝗮𝗻𝘁 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝗽𝗼𝘄𝗲𝗿𝗳𝘂𝗹, 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗶𝗻𝗴 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗼𝗿 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲 𝗰𝘂𝘁𝘁𝗶𝗻𝗴-𝗲𝗱𝗴𝗲 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗔𝗜 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. Whether you're: - Launching a scalable SaaS application - Integrating advanced Generative AI (ChatGPT, GPT-4, LangChain, NLP integrations) - Optimizing your application for superior performance and user engagement 𝗜’𝘃𝗲 𝗴𝗼𝘁 𝘆𝗼𝘂 𝗰𝗼𝘃𝗲𝗿𝗲𝗱. ✨ 𝗛𝗼𝘄 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽: - ✅ 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Robust backend solutions (Ruby on Rails, Node.js) combined with interactive frontends (React, Next.js). - ✅ 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Custom AI-powered tools, ChatGPT/GPT-4, LangChain, NLP integrations. - ✅ 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 & 𝗦𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: Speed optimization, database efficiency (PostgreSQL, MongoDB, Redis), scalable deployments. ✨ 𝗥𝗲𝗰𝗲𝗻𝘁 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 𝗦𝘁𝗼𝗿𝗶𝗲𝘀: 🚀 𝗕𝗿𝗼𝗸𝗲𝗿𝗞𝗶𝘁: Scalable SaaS improving real estate agent onboarding and retention. 𝗦𝘁𝗮𝗰𝗸: Ruby on Rails, React, Redux, Stripe, Heroku, OpenAI 🚀 𝗘𝘅𝗰𝗹𝘂𝘀𝗶𝘃𝗲 𝗚𝘂𝗹𝗲𝘁𝘀: Dynamic yacht rental platform simplifying operations and invoicing. 𝗦𝘁𝗮𝗰𝗸: Ruby on Rails, React, Stripe, Sidekiq, Heroku, ElasticSearch 🚀 𝗜𝗻𝘃𝗶𝗴𝗼𝗿𝗮𝘁𝗲: Custom escrow platform connecting service providers securely. 𝗦𝘁𝗮𝗰𝗸: Ruby on Rails, React, Stripe, Redis, ElasticSearch ✨ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: - Reliable, Certified Expertise - Clear and responsive communication - Solutions tailored to your business 🎯 𝗟𝗘𝗧’𝗦 𝗚𝗘𝗧 𝗦𝗧𝗔𝗥𝗧𝗘𝗗! 𝗦𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗹𝗲𝘁’𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗼𝗱𝗮𝘆.

I’m Kiran, a Microsoft-certified Full Stack .NET Expert and I collaborate with my clients when they need more than just a developer who completes tasks as they need someone who understands the bigger picture, takes ownership, and builds systems that are stable, scalable, and maintainable long term. Top Rated | $70,000+ earned | Completed Upwork projects with 100% Job Success | 15+ years of experience with consistently delivering reliable software solutions Over the years, I’ve worked across the complete software development lifecycle on enterprise applications, SaaS platforms, cloud-based systems, REST API ecosystems, desktop applications, and eCommerce platforms. I help businesses: • Modernize legacy .NET applications • Build scalable full-stack platforms • Develop reliable API integrations • Improve application performance & architecture • Deploy and optimize solutions on Microsoft Azure • Maintain complex enterprise systems with confidence Core Expertise: • Full-stack web applications using .NET Core + React/Angular • Enterprise SaaS platform development • REST APIs & third-party integrations • Azure cloud development, migration & deployment • nopCommerce customization & plugin development • Legacy modernization (VB.NET / ASP.NET → .NET Core) • WinForms & WPF desktop applications • Reporting systems using Power BI, SSRS & Crystal Reports • Microsoft Dynamics 365 & Dataverse integrations • Power Apps & Microsoft Teams solutions Tech Stack Backend: C#, .NET 8/9, ASP.NET Core, ASP.NET MVC, Web API, Minimal APIs, Entity Framework Core, Dapper, LINQ, ADO.NET, WCF, Microservices, Multi-Tenant SaaS Architecture Frontend: Angular, React, Next.js, Vue.js, TypeScript, JavaScript, KnockoutJS, jQuery, Razor Pages, Blazor, HTML5, CSS3, Bootstrap Databases: SQL Server, PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch Cloud & DevOps: Microsoft Azure, Azure DevOps, CI/CD Pipelines, Docker, IIS, Linux (Ubuntu), Application Performance Monitoring Microsoft Technologies: SharePoint, Power Apps, Power Automate, Microsoft Graph API, Dataverse, Dynamics 365 Business Central E-Commerce & CMS: nopCommerce, Umbraco, Multi-Vendor Marketplaces, Subscription SaaS Platforms APIs & Integrations: Payment Gateways (Stripe, PayPal, Razorpay), Microsoft 365, D365, Google APIs, Facebook/Meta APIs, WhatsApp Business API, POS, Shipping, ERP, CRM, Accounting (Xero, QuickBooks) AI & Automation: OpenAI, Claude, AI Chatbots, RAG, Workflow Automation Tools & Libraries: DevExpress, Telerik, Syncfusion, SSRS, Git, LINQ, ADO.NET, REST APIs, OAuth 2.0, JWT, OpenID Connect Specializations: Enterprise Software Development, Multi-Tenant SaaS, Azure Solutions, SharePoint & Power Platform, E-Commerce, System Integrations, Performance Optimization, AI-Powered Applications Why Me? • Clear communication and proactive updates • Clean, maintainable architecture • Fast understanding of existing systems • Problem-solving mindset, not just task execution • Reliable delivery without constant follow-ups I’ve worked with startups that needed speed and enterprise teams that required precision and I know how to adapt to both. So, if you're looking for kick starting your brand or business then let's connect to discuss your vision and I can contribute beyond just writing code. I'd be happy to help and deep dive to discuss your project now!

TOP RATED PLUS - Top 3% Talent on Upwork AI Product Engineer | Full Stack Architect | SaaS Development Specialist I help startups, founders, and growing businesses build AI-powered products, modern SaaS platforms, and scalable web applications that solve real business problems. Over the last 10+ years, I've worked with startups, agencies, and enterprise clients to design, architect, and develop high-performance applications using modern JavaScript technologies, cloud infrastructure, and the latest advancements in Artificial Intelligence. Today, my primary focus is helping companies integrate AI into their products and workflows through Large Language Models (LLMs), AI Agents, Agentic Workflows, Retrieval-Augmented Generation (RAG), AI Automation, and intelligent business systems. Whether you're building a new AI startup, modernizing an existing platform, or integrating AI capabilities into your current product, I can help you move from idea to production. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗕𝘂𝗶𝗹𝗱: ✅ AI-Powered SaaS Applications ✅ AI Agents & Multi-Agent Systems ✅ OpenAI, Anthropic Claude & Gemini Integrations ✅ AI Chatbots & AI Assistants ✅ RAG (Retrieval-Augmented Generation) Systems ✅ AI Knowledge Bases ✅ AI Customer Support Platforms ✅ AI Workflow Automation ✅ AI Content Generation Platforms ✅ Custom GPT Applications ✅ Enterprise Web Applications ✅ Marketplace Platforms ✅ CRM & ERP Systems ✅ Internal Business Tools ✅ Dashboard & Analytics Platforms ✅ Real-Time Applications ✅ API Development & Integrations ✅ Cloud-Based SaaS Products 𝗔𝗜 & 𝗟𝗟𝗠 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 • OpenAI GPT-4o / GPT-4 • Anthropic Claude • Google Gemini • LangChain • LangGraph • Vector Databases • Pinecone • Weaviate • ChromaDB • RAG Architectures • AI Agents • Agentic Workflows • Prompt Engineering • Function Calling • AI Automation • MCP Servers • Semantic Search • AI Copilots • Document Intelligence Systems 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 • React.js • Next.js • Angular • TypeScript • JavaScript • Redux • Tailwind CSS • Material UI • ShadCN 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 • Node.js • NestJS • Express.js • PHP • Laravel • CodeIgniter • Python 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 • PostgreSQL • MongoDB • MySQL • Redis • Elasticsearch 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 • AWS • Azure • Google Cloud • Docker • Kubernetes • CI/CD Pipelines • Vercel • DigitalOcean Why clients hire me: ✔ Strong communication ✔ Product-first mindset ✔ Clean, scalable architecture ✔ AI + Full Stack expertise in one profile ✔ Startup-speed execution ✔ Long-term support and maintenance If you're looking for someone who can not only write code but also help shape product decisions, architect scalable systems, and integrate modern AI capabilities into your business, let's connect. I enjoy working on ambitious products and helping founders bring ideas to life.

👋 Hi, I'm Julia from Koitechs - Top Rated Plus Upwork team focused on React, Next.js, Node.js, React Native, TypeScript, Supabase, PostgreSQL, and AI product development. My main goal is save up to 40% of our budget to get a market-ready, stable and scalable product. I help companies hire in-house, CTO-approved engineers who join fast, take ownership, and deliver production-ready software. ✅ 9+ years in software development ✅ 155+ web and mobile projects delivered ✅ 20,500+ Upwork hours in React / Next.js / Node.js / React Native ✅ 75% repeat clients ✅ Engineer matching in 24 hours or less ✅ 2-week trial period ✅ 35+ in-house engineers ✅ 40+ MVPs released ✅ Products supported by our team include platforms with 5M+ daily users 🚀 React / Next.js / Full Stack We build SaaS platforms, marketplaces, dashboards, admin panels, CRMs, AI products, and scalable web apps using React, Next.js, Node.js, TypeScript, Supabase, PostgreSQL, Firebase, MongoDB, REST API, GraphQL, Stripe, OAuth, WebSockets, AWS, Vercel, and Docker. Our team is a strong fit if you need a react developer , web developer , full stack developer , nextjs developer, mern developer, or backend engineer. We help with MVP development, legacy code takeover, architecture modernization, Core Web Vitals, API integrations, payments, auth, subscriptions, user roles, and production launch. 📱 React Native / Mobile We build and support iOS and Android apps using React Native, Expo, Firebase, Supabase, Node.js, and API-driven architecture. We can help if you need a react native developer , mobile app developer, iOS / Android support, app takeover, mobile maintenance, push notifications, App Store / Google Play releases, payments, or backend integrations. We also support mixed mobile environments with flutter developer , android developer , backend developer, AI developer, or web developer. 🤖 AI SaaS / AI App Development We build AI-powered products connected to real business workflows. Experience: AI SaaS, AI MVPs, AI chatbot development, AI agent development, OpenAI API, Claude API, LLM prompt engineering, RAG, automation, web scraping, AI model integration, copilots, and AI workflow validation. AI stack: OpenAI API, Claude API, LLMs, RAG, AI Agent Development, AI Chatbot, Generative AI, Python, FastAPI, Supabase, PostgreSQL, pgvector, automation, data analysis, web scraping. 🧩 Mixed-Stack Support Our core focus is React, Next.js, Node.js, React Native, TypeScript, Supabase, and AI. We also support products involving wordpress , vue , angular , python developer , scala developer , flutter developer , android developer , mern , and other web/mobile technologies. 🏆 Industries 📦 Logistics - 5+ projects: tracking, shipment dashboards, carrier/shipper workflows, maps, route visibility. 🏥 HealthTech -4+ projects: medical booking, clinic platforms, patient flows, admin systems. 🛒 Marketplaces & E-commerce - 15+ projects: multi-vendor products, Stripe, subscriptions, bidding, complex search. 🏠 PropTech / Real Estate -5+ projects: listings, booking flows, agent dashboards, rental platforms. 🤖 AI Startups - 25+ AI products/features: AI SaaS, chatbots, agents, copilots, OpenAI / Claude integrations. 💰 FinTech - 3+ projects: Stripe Connect, billing, payment flows, invoicing. 🎮 Gaming - 5+ projects, including 2 major global gaming brands: dashboards, analytics, real-time interactions. 📚 EdTech - 5+ projects: student dashboards, progress tracking, content platforms. 📣 MarTech - 1 global market-leading project: dashboards, analytics, segmentation, workflows. ⚽ SportsTech - 10+ projects: live data, dashboards, events, rankings, stats, mobile apps. 📌 How We Work 1️⃣ Discovery & technical planning 2️⃣ Engineer matching within 24h 3️⃣ 2-week trial period 4️⃣ Weekly demos and reports 5️⃣ CTO-approved delivery with code review and QA 6️⃣ Long-term support after launch 🚀 Building a SaaS, MVP, marketplace, React app, Next.js platform, React Native app, AI product, or mixed-stack web/mobile platform? Click “Invite” or “Hire” - I’ll help you clear the estimate or discovery phase within 24 hours or less.

Full-Stack Developer & Systems Architect With over 10 years of experience, I design and build secure, high-performance digital systems that support scalability, automation, and long-term business growth. I specialize in architecting intelligent, cloud-ready solutions using modern frameworks, robust backend systems, and AI-driven technologies. Core Competencies: Frontend & Mobile: React, Vue, Angular, Next.js, React Native, Progressive Web Apps (PWAs) Backend & APIs: Node.js, Laravel, Django, Golang, REST & GraphQL APIs, Payment Integrations AI & Automation: GPT-based chatbots, NLP solutions, intelligent workflow automation Mobile App development: React-Native (iOS & Android) Blockchain & Web3: Smart Contracts, Web3 & dApp Development, Ethereum, Polygon, Solana, Token & NFT Development, DeFi Platforms, Wallet Integrations, Smart Contract Security, IPFS, and Enterprise Blockchain Solutions. Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD pipelines, infrastructure security and optimization Databases & Analytics: MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch, ClickHouse Mobile App, Game & AI Development: Cross-platform iOS and Android app development AI features like chatbots, recommendations, voice, image recognition, and automation Mobile game development with animations, rewards, leaderboards, and in-app purchases API integration, Firebase, payments, push notifications, and real-time features App testing, performance optimization, and store deployment AI/ML: Integrate intelligent AI/ML capabilities using OpenAI (GPT-4, ChatGPT), Claude AI, Gemini, TensorFlow Lite, Core ML, ML Kit. Expertise includes NLP, computer vision, voice assistants, recommendation engines, automation, and predictive analytics AI Agent Development: AI Chatbots, AI Bots, AI Classifiers, Voice AI, AI Text-to-Speech, AI Speech-to-Text, Bot Development, Deepbrain AI, CrewAI, AutoGen Blockchain & Web3: Smart Contracts (Solidity, Rust), Web3 & dApp Development, Ethereum, Polygon, Solana, BNB Chain, ERC-20 & ERC-721 Token Development, NFT Platforms, DeFi Solutions, Staking & DAO Platforms, Wallet Integrations (MetaMask, WalletConnect), Smart Contract Auditing & Security, Cross-Chain Solutions, IPFS Integration, Cryptocurrency Payment Integrations, Enterprise Blockchain Solutions (Hyperledger). AR/VR/MR/XR Expertise: AR Applications: ARKit, ARCore, Vuforia VR Applications: Oculus, HTC Vive Extended Reality (XR): Seamless AR, VR and MR integration Unity/Unreal: App/Game Development, Metaverse 3D Technologies: Three.js, WebGL, Blender UI/UX Design: Skilled in Figma, Adobe XD, and Sketch with expertise in wireframing, interactive prototyping, Lottie animations, Material Design, and Apple HIG-based user experiences Backend & APIs: Build scalable and high-performance backends using Node.js (Express, NestJS), Python (Django, FastAPI), Laravel, Firebase, and Supabase with strong experience in REST APIs, GraphQL, and WebSocket integrations Integrations: Experienced with payment systems (Stripe, PayPal, Apple Pay, Google Pay), maps & geolocation (Google Maps, Mapbox), push notifications (FCM, APNs), chat platforms (Twilio, SendBird), video calling (Agora, WebRTC), analytics (Firebase, Mixpanel), social logins, and biometric authentication I am committed to building scalable, future-proof systems aligned with your business objectives and would be glad to support your next initiative. Let’s connect and discuss your project.