🙈 “Can we just quickly fix this?” 🙊 “It’s probably just a small change.” 🙉 “Let’s ship first and think later” I am a CEO and Business Manager at Peppernode. I create systems where architecture, decisions matter because mistakes cost more than doing it right. Call me Illia. 🏆 MY ACHIEVEMENTS: 15+ years and 30+ successful products as a Full stack developer Saas, delivering SaaS platforms, MVPs, AI-powered solutions, scalable Web Applications; 12K+ dental professionals and 20K+ healthcare users supported through Healthcare Web Applications and HIPAA-compliant platforms built as a React Next.js Developer; 35–45% faster feature delivery, improved application stability, scalable SaaS platforms built as a React Full Stack Developer; 20–30% higher user engagement as a React Developer, building web applications used by 5M+ end users worldwide. React Native App Developer delivering cross-platform mobile apps. Business Analyst reducing development rework by 20–30% through accurate requirement gathering; 31 successful projects delivered to businesses across 16+ countries, serving more than 5M+ end users worldwide; 100% Job Success, $200K+ earned, and 5,339+ hours worked on Upwork, with proven experience designing scalable applications, validating product strategies, making the right technical decisions from day one 🚀 SaaS Development As a Full Stack Developer React, React Next JS Developer I build 30+ SaaS platforms with React, Python, Firebase, JavaScript, scalable architectures. As a React Developer Firebase, I've delivered 20+ SaaS projects, building web applications with connected frontend, backend systems. My experience as a Full Stack Developer Supabase React includes building SaaS platforms with React, Supabase authentication, real-time databases, secure backend, and Bubble integrations. 📱 React Native App Development As a React Native Developer, React Native App Developer, and Mobile App Developer, I've built cross-platform React Native iOS and Android applications used by businesses in 10+ countries. I've delivered 20+ React Native Mobile solutions for startups and established businesses. As a React Native Developer Expo specialist with experience in React Native Expo, I take products from MVP to production, building intuitive user experiences with clean codebases. As a Full Stack Developer React Native, Node JS React Native Mobile Developer, and Mobile Developer, I've contributed to 20+ mobile products, building connected mobile ecosystems powered by scalable backend services. My work includes Mobile App Development React Native, React Native, Expo, mobile MVP development, enterprise applications, API integrations, authentication, App Store and Google Play releases, performance optimization, and long-term product support. 🍽 Restaurant Ordering Systems As a Full stack developer react firebase, I've developed restaurant ordering platforms used by thousands of daily users, enabling restaurants to automate ordering,payment processes. My solutions have increased operational efficiency by 32% through workflow automation, POS integrations, Stripe payments, real-time order management. As a React Native Mobile Developer, I've built customer and staff applications that optimize restaurant operations . As a Python Developer, I build reliable restaurant platforms with scalable architectures, secure payment integrations, POS connectivity, inventory synchronization, cloud-based backend services, high-performance APIs. As a React Developer, I have improved user engagement by 20–30% through faster interfaces, intuitive user experiences. AI Integrations As a Full Stack Developer AI, I've built 20+ AI integrations using OpenAI API, Gemini, LangChain, reducing manual work by up to 70% and enabling AI Accelerated Development delivering projects up to 2× faster. My work includes Web Developer AI-powered features, conversational chat interfaces, AI agents, prompt engineering, custom LLM integrations, AI Chatbot development, and Software Development solutions that improve productivity. 🔧 Tech Stack As a Full Stack Developer React Node and Full stack developer shopify I've delivered 31 production-ready software products, helping clients launch MVPs 5–8 weeks faster while reducing production bugs by 35% through scalable architecture. For web applications, I primarily use React, TypeScript, and Tailwind CSS to build fast, responsive user interfaces. Mobile products are developed with React Native and Expo, while backend services rely on Python, FastAPI, Django, Node.js, PostgreSQL, REST APIs to power secure, scalable applications that support millions of users. As a Full Stack Developer Laravel, I've modernized 20+ applications by refactoring legacy code, reducing technical debt, and expanding functionality while maintaining long-term scalability. Looking for a React Developer, React Native Developer, Full Stack Developer React Node, python full stack developer flask to build your next SaaS platform?

$100k+ earned on Upwork | 1,000 + billed hours | Building production-ready AI SaaS & Full-Stack products with a proven 5-star client history. If you shoot me a invitation or direct message i'll send you a personalized loom video back on how i may be able to help you! Your AI SaaS works in the demo, then breaks the moment real users hit it. I build production ready web applications and Full Stack SaaS platforms that don't, the kind running production right now, moving 10,000+ messages a day at 99% delivery and saving one client $200k+ a year. From AI automation and RAG systems that don't hallucinate to scalable backend systems, multitenant architectures and secure enterprise software,I build products that stay reliable as they grow. And where it matters most, in regulated healthcare and fintech, that's the work I'm known for. Over the last 10+ years, I've delivered Full Stack Development FinTech, Health Tech, HR Tech and Ed Tech, designing and delivering SaaS Development projects, AI-powered applications, MVP Development, workflow automation systems, cloud-native applications and enterprise platforms. With 1000+ billed hours and a consistent 5 star track record, I focus on building systems and products that remain reliable as your user base grows. WHAT MAKES ME DIFFERENT: Most developers focus on delivering features. I focus on delivering systems that can operate in production. Before writing code, I help founders and product teams make the right technical architecture, system architecture, scalability, AI integration, compliance, infrastructure and long term maintainability decisions. My focus is delivering scalable architecture and production ready software rather than simply shipping features. Whether you're launching MVP, modernizing a legacy web application, building an AI SaaS platform, creating a new software product, or integrating AI into existing business, I help define the technical roadmap and execute the entire product development lifecycle. My work frequently involves: • AI native SaaS products, SaaS Development, multi- tenant platforms • AI Agents, AI Voice Agents, AI Automation • Retrieval-Augmented Generation (RAG) systems, knowledge assistants, LLM applications • Healthcare SaaS & HIPAA-compliant web applications • Fintech platforms & payment systems • Enterprise API Development & API Integration • Cloud Infrastructure, DevOps & Backend Development What Client Says: "This developer did an outstanding job and exceeded our expectations in every way. They quickly became a lead developer, taking ownership of complex requirements and delivering high-quality, well-structured work consistently." "Very responsive, professional, and communicative. Will be working with them again soon!" WHAT I BUILD FOR YOU: → AI-powered SaaS platforms, Full Stack Web Applications, startup MVPs, MVP Development, multi-tenant SaaS applications, enterprise software, Stripe billing, RBAC, ABAC, audit logs, row-level security. → AI Agents, AI Voice Agents, AI Automation, RAG systems, knowledge assistants, AI copilots, custom LLM workflows. → Full-Stack Web Applications Development using Next.js, React, TypeScript, Node.js, Python, FastAPI, scalable backend systems and cloud-native architectures → Healthcare SaaS solutions including HIPAA-compliant web applications, patient engagement systems, secure healthcare workflows, and enterprise software. → FinTech software products including payment systems, subscription platforms, financial dashboards, transaction processing and compliance-focused architecture. → API Development, Backend Development and API Integration with OpenAI, Stripe, Twilio, HubSpot, Salesforce, CRMs, ERPs and third-party SaaS platforms. → Workflow Automation using n8n, AI-powered business processes, customer support automation, onboarding automation, and sales automation → Cloud Infrastructure, AWS deployments, Docker, CI/CD pipelines, monitoring, production rollouts, and scalable backend systems CORE STACK & KEYWORDS: Full Stack Development, Web Application Development, SaaS Development, AI SaaS, Platform Development, Technical Architecture, System Architecture, Database Architecture, Backend Development, Software Architecture, Scalable Architecture, Enterprise Software, Cloud Infratructure, Product Development, Next.js, React, TypeScript, Node.js, Nest.js, Python, FastAPI, Django • Open AI, GPT-4, Claude, Gemini, LangChain, LangGraph, AI Agents, AI Voice Agents, RAG, Vector Database, pgvector, Pinegone • PostgreSQL, Supabase, MongoDB, Redis, Firebase • AWS, Docker, Kubernetes, CI/CD • Stripe, Twilio, HubSpot, Salesforce, • Multi-tenant SaaS, MVP Development, SaaS Architecture, Workflow Automation, HIPAA, SOC2, PCI-DSS, OAuth2, RBAC, ABAC, Row Level Security

👑 𝐓𝐨𝐩 𝟏% 𝐄𝐱𝐩𝐞𝐫𝐭-𝐕𝐞𝐭𝐭𝐞𝐝 𝐓𝐚𝐥𝐞𝐧𝐭 | 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐌𝐄𝐑𝐍, 𝐀𝐈, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐏𝐲𝐭𝐡𝐨𝐧 & 𝐅𝐚𝐬𝐭𝐀𝐏𝐈 Whether you're scaling an existing product, building a SaaS platform from scratch, or integrating AI into your workflow, success depends on strong architecture and reliable execution. As a Senior Full Stack AI Engineer with 10+ years of experience, I specialize in building scalable SaaS platforms, enterprise applications, MERN stack solutions, and AI-powered products using React, Next.js, Node.js, Python, and FastAPI. Trusted by enterprise clients including Barnes & Noble, Binance, Restoration Hardware, Liquid Donate, and Rapchat, I deliver high-performance applications, scalable architectures, and reliable product execution. 🛠️ 𝗖𝗢𝗥𝗘 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦: • Frontend & MERN Stack: React, Next.js, Redux, TypeScript, JavaScript, Tailwind CSS • Backend & APIs: Node.js, Express.js, Python, FastAPI, Django, Flask, REST APIs, GraphQL • Databases: PostgreSQL, MySQL, MongoDB, Redis • Cloud & DevOps: AWS, GCP, Azure, Docker, CI/CD • SaaS & Architecture: Multi-tenant SaaS, Dashboards, Authentication, Workflow Automation • AI Integrations: OpenAI APIs, LLM Workflows, AI Automation, Intelligent Assistants ✅ SaaS Platforms & Enterprise Systems * Multi-tenant SaaS and MERN stack applications * Admin dashboards & workflow systems * Business automation platforms * Secure API-first architectures * Production-scale distributed systems ✅ AI Integrations & Automation * OpenAI / LLM integrations * AI agents & intelligent workflows * Document processing, OCR & data extraction * Automation pipelines & AI-powered features ✅ Healthcare & Secure Data Systems * FHIR-compliant healthcare platforms * HIPAA-aware workflow implementation * Secure healthcare interoperability, ingestion & data mapping --- ### Industry Experience 🧩 Delivered SaaS platforms, admin dashboards, and API-first systems 🌐 Built enterprise-grade applications across eCommerce, FinTech, EdTech, Web3, and Enterprise IT 🏥 Built secure healthcare platforms with FHIR and HIPAA-compliant workflows 🛫 Aviation & operations management platforms 🎯 Applicant Tracking System (ATS) integrations 🧩 Marketplace & product configuration systems --- ### What Clients Say “Vivek provides a solution-oriented approach, proactively identifies problems, and delivers effective solutions.” “Vivek delivered exceptional performance in a highly complex enterprise environment.” Clients usually work with me when they need strong technical leadership, architecture guidance, and end-to-end product ownership - from planning to deployment. If you're looking for a senior engineer who can quickly understand complex systems, architect scalable solutions, and deliver production-ready software, feel free to message or invite me to discuss your project. Full-Stack Development | AI Development | MERN Stack | React | Next.js | TypeScript | Node.js | Express.js | Python | FastAPI | Django | SaaS Development | SaaS Architecture | Software Architecture | System Design | API Integration | OpenAI API | Generative AI | LLM Integration | LangChain | AI Automation | AI Agent Development | RAG | Vector Database | PostgreSQL | MongoDB | AWS | Docker | Microservices | Healthcare Software | FHIR | HIPAA

I build production-ready Full Stack AI Agent Automation systems, AI Voice Agents, and AI SaaS products using Python, Claude, and OpenAI. With 9+ years of full-stack engineering experience, I take AI ideas from MVP to a scalable product. I design the agent logic, backend APIs, integrations, dashboards, automation workflows, and deployment, so you do not need separate AI and full-stack developers. Need an Agentic AI system, AI Voice Agent, RAG chatbot, multi-agent workflow, or Multi-Tenant SaaS platform? I architect it, build it, and hand it over tested, documented, and ready for production. --- WHAT I BUILD --- - Full Stack AI Agent Automation systems for support, sales, operations, lead qualification, data extraction, reporting, and internal workflows - AI Voice Agents, Voice-to-Voice systems, and Sales AI Receptionists for inbound calls, qualification, booking, follow-up, and WhatsApp Bot Integration - Custom Chatbots and RAG-based AI bots for grounded answers over documents, websites, and business knowledge * Multi-Tenant AI SaaS platforms with authentication, roles, dashboards, billing, APIs, and workflow automation - Agent orchestration and Multi-Agent Systems with LangGraph, LangChain, CrewAI, AutoGen, MCP, tool calling, structured outputs, and human-in-the-loop controls - LLM integrations with Claude, OpenAI API, Claude Code, Prompt Engineering, model routing, embeddings, vector databases, pgvector, and evaluation-aware workflows - Full-stack delivery with Python/FastAPI, Node.js, React, Next.js, TypeScript, Tailwind CSS, PostgreSQL, Supabase, Docker, GitHub, AWS, Vercel, Stripe, Twilio, and n8n - API Development, API Integration, Backend Refactoring, Audio Processing, and scalable REST API architecture for production systems --- PROJECT EXPERIENCE --- - AI Workforce SaaS: multi-organization scheduling, HR, CRM, payroll, billing, RAG knowledge base, AI communications, Full Stack AI Agent Automation, and predictive operational alerts - AI Voice Agent SaaS: multi-tenant AI Voice Agents with LangChain, LangGraph, RAG, knowledge bases, CRM integrations, analytics, and a Claude-based copilot - Operations Automation: real-time task allocation, workflow automation, optimization services, GraphQL APIs, and dashboards - Healthcare, donor-management, and booking SaaS platforms built with Python, FastAPI, PostgreSQL, React, and secure multi-tenant architecture --- INDUSTRIES I HAVE DELIVERED FOR --- - SaaS Startups • Healthcare • Real Estate • Finance • Car Dealerships • Restaurants • E-commerce --- HOW I WORK --- As an Agentic AI Developer and Python/FastAPI Developer, I build Full Stack AI Agent Automation systems, agent pipelines, and API workflow automation including Function Calling, Structured Outputs, Model Routing, Embeddings, and human-in-the-loop controls. As a Senior Full-Stack Engineer with 9+ years of experience, I build scalable web applications using React, TypeScript, Node.js, NestJS, and Next.js with clean REST API architecture and production-ready deployment on Vercel and AWS. As a Senior Full Stack Engineer, I deliver clean architecture and full team handoff documentation. --- WHAT YOU GET --- - Clear architecture before build - Production-ready backend, frontend, APIs, and integrations - Secure authentication, role-based access, and maintainable data design - Clean documentation, practical cost controls, and reliable handoff - An MVP that can grow into a stable SaaS product --- WHY CLIENTS CHOOSE ME --- - 9+ years as a Full Stack and Python Developer across AI Agent Automation systems, AI SaaS platforms, AI Voice Agents, and backend APIs - Senior Full Stack Engineer and FastAPI Developer for architecture, AI backends, and execution - Deep knowledge of Function Calling, Structured Outputs, Model Routing, and Embeddings - 9+ years across React, TypeScript, Node.js, and Python, both stacks, one developer - No black boxes, no guesswork, always documented - Delivered across 7+ industries: SaaS Startups, Healthcare, Real Estate, Finance, Car Dealerships, Restaurants, E-commerce --- WHOM I WORK BEST WITH --- Founders and product teams building AI products, Full Stack AI Agent Automation systems, agentic workflows, RAG systems, AI Voice Agents, or AI-enabled SaaS. I am a strong fit when you need one engineer to connect AI logic, product UI, backend services, data, integrations, and deployment. If you are building an AI Agent, AI Automation system, AI Voice Agent, RAG product, or AI SaaS platform, send me your project details.

Are you tired of developers who deliver messy, undocumented code and then disappear? I build backend systems and AI-powered applications that are clean, scalable, and maintainable — backed by a 100% Job Success Score, 70+ delivered projects, and $80K+ earned on Upwork. ⚡ MY CORE STACK ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔧 Backend → Python (Django, DRF, FastAPI, Flask), Node.js, TypeScript, REST APIs, GraphQL, Celery, WebSockets, Microservices 🤖 AI / LLM → LangChain, OpenAI API, GPT-4, RAG pipelines, Agent workflows, LLM-powered automation 🎨 Frontend → React.js, Next.js, React Native (iOS + Android), Angular, JavaScript, HTML/CSS 📱 Mobile → React Native — iOS & Android 🗄️ Database → PostgreSQL, MySQL, MongoDB — schema design & optimization ☁️ DevOps/Cloud → AWS (EC2, S3, Lambda), Docker, CI/CD, Git 🚀 WHAT I'VE SHIPPED IN PRODUCTION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Artha — Multi-service booking platform with real-time slot management and provider calendars ▸ Bancreach — Commercial loan marketplace with WebSocket live chat and admin panel ▸ Zeepo — Multi-role insurtech app with Celery background tasks and third-party lead sync ▸ Celloux — Crypto trading platform with payment API integration ▸ Wikireviews — Full-stack review platform serving real users at scale 💡 I work across the full stack but my strongest value is backend architecture — building systems that are clean, documented, and maintainable long after the project ends. 🤝 If you're building a SaaS product, integrating AI into your workflow, or need a backend developer who communicates clearly and ships on time — let's talk. 📌 Open to fixed-price projects, hourly contracts, and long-term partnerships. 👉 Tell me what you're building — I'll tell you exactly how I'd approach it.

✅ Top Rated **Python Expert | MCP Expert | RAG Expert | Full Stack Developer | AI Automation Expert** ✅ Completed 100+ projects as a **Python Expert, MCP Expert, RAG Expert, Full Stack Developer, and AI Automation Expert** with excellent client feedback ⏱️ 7000+ hours delivered with consistent 5⭐ ratings 💬 Fluent English communication 📅 Available to start immediately — Click **"INVITE"** ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ My Services as a Python Expert | MCP Expert | RAG Expert | Full Stack Developer | AI Automation Expert: ► Python Expert for backend development, scalable software solutions, APIs, automation, ETL pipelines, and enterprise applications ► Python Expert for workflow automation, browser automation, CRM automation, AI automation, and business process optimization ► MCP Expert for Model Context Protocol (MCP) server development, AI tool integrations, and enterprise AI connectivity ► MCP Expert for connecting AI agents with APIs, databases, enterprise systems, cloud services, and business applications ► RAG Expert building Retrieval-Augmented Generation (RAG) systems using LangChain, LangGraph, LlamaIndex, OpenAI, Claude, Gemini, and vector databases ► RAG Expert for AI-powered search systems, semantic search, vector search, knowledge retrieval, enterprise AI assistants, and AI chatbots ► RAG Expert for AI chatbots trained on PDFs, websites, databases, Notion, SharePoint, Confluence, and internal documentation ► RAG Expert for knowledge base development using Pinecone, ChromaDB, FAISS, Weaviate, Qdrant, and Milvus ► AI Automation Expert for AI agents using OpenAI, Claude, Gemini, DeepSeek, Llama, CrewAI, AutoGen, LangGraph, and custom AI workflows ► Full Stack Developer building modern web applications using Next.js, React, TypeScript, Tailwind CSS, Shadcn/UI, Node.js, NestJS, Express, REST APIs, PostgreSQL.

Build a SaaS MVP designed to attract and retain YOUR users – backed by 400K+ user experience 🤝 I work as a SaaS MVP Developer and technical partner for founders and startups, helping turn ideas into real SaaS products, SaaS platforms, and SaaS MVP applications built with Next.js / Nextjs. As a SaaS Developer and MVP Developer, I specialize in SaaS MVP development using Next.js and AI integrations. My goal is to help startups validate ideas fast, launch their SaaS MVP, and scale a successful SaaS platform without spending months on development. Over the past years I've built 7+ SaaS platforms and 10+ SaaS MVP products, working as a SaaS MVP Developer for startups and founders. Platforms I helped build are used by 400,000+ active users. My experience includes large SaaS platforms with 1,000,000+ content items, ultra-fast Next.js / Nextjs dashboards loading under 1 second ⚡, and high-converting SaaS MVP products that increased conversion rates by 15–28% 📈. I usually work with founders who need a SaaS Developer or SaaS MVP Developer to build a SaaS MVP, launch a Nextjs SaaS platform, or develop scalable SaaS MVP architecture. 🎯 What I specialize in SaaS platform development • SaaS MVP development • Startup MVP development • Next.js / Nextjs SaaS applications • AI integrations in SaaS platforms • Multi-tenant SaaS platform architecture • AI automation for SaaS MVP products • Real-time SaaS platform applications • End-to-end SaaS MVP development 💡 How I help founders Turn an idea into a working SaaS MVP in 2 days 🚀 Build scalable SaaS platform architecture with Next.js Launch AI-powered SaaS MVP products fast as a dedicated SaaS MVP Developer Reduce time to market for SaaS startups with efficient MVP delivery Avoid costly mistakes during SaaS MVP development by working with an experienced SaaS Developer My work as a SaaS MVP Developer and SaaS Developer helped clients save 40+ hours per month, reduce infrastructure costs by $5,000/month 💰, and grow SaaS platform revenue by $390,000 per year. 🛠 My SaaS MVP development process 📞 Product discovery call for your SaaS MVP or SaaS platform 📌 MVP roadmap and SaaS MVP development strategy 🎨 UI/UX design for your Nextjs SaaS platform 💻 Development of your SaaS MVP using Next.js / Nextjs, Node.js, and AI integrations — handled by a dedicated SaaS Developer 🧪 Testing and optimization of your SaaS platform 🚀 Launch and scaling of your SaaS MVP platform 🗣 Client feedback "Daniil builds SaaS platform functionality with incredible logic and user experience." — Vladislav Zaika "Our idea became a full SaaS platform. Daniil keeps improving our SaaS MVP product constantly." — Dmytro Bliznyuk 💻 Tech stack for SaaS MVP and SaaS platform development Next.js, Nextjs, React, TypeScript, Node.js, NestJS, PostgreSQL, Prisma, GraphQL, MongoDB, Redis, Firebase, AWS, Vercel, AI integrations and scalable SaaS platform architecture everything a professional SaaS MVP Developer needs. ✉️ Let's build your SaaS MVP Write "Hi, I have an MVP idea" and I'll show how we can turn it into a working SaaS MVP prototype with Next.js in just a few days 🚀.

I build scalable backend systems, data pipelines, and automation platforms used by SaaS, fintech, and e-commerce companies. With 14+ years of backend engineering experience, I specialize in designing high-performance APIs, distributed ETL pipelines, and large-scale automation infrastructure. $500K+ earned on Upwork across 270+ projects building backend systems and data platforms. Key strengths: • Backend architecture (Python, FastAPI, Node.js, .NET, PostgreSQL, Supabase, Celery/RabbitMQ/Redis) • Data pipelines & ETL systems • AI integrations and RAG pipelines on vector databases (pgvector, Pinecone, Qdrant) • Large-scale data extraction and reverse engineered APIs • Distributed workers and automation infrastructure I focus on performance, reliability, and long-term maintainability, delivering backend platforms that grow with the business and remain stable under heavy load. Core technologies Python, FastAPI, Node.js, .NET, PostgreSQL, Redis, Supabase, Qdrant, Pinecone, Docker, Celery, RabbitMQ, Playwright, Selenium, Scrapy, REST APIs, GraphQL, ETL pipelines, RAG, vector search, distributed workers, cloud infrastructure (AWS/GCP/Azure), LLM, Langchain, Langraph, Langfuse, BMAD

I am a Full Stack Developer with 12+ years of experience in helping startups, SaaS companies and enterprises build scalable, secure and high-performance web applications. I specialize in turning ideas into production-ready software using modern technologies, cloud platforms and AI-powered solutions. Whether you're launching a new product, modernizing an existing application or integrating AI into your business, I focus on delivering clean architecture, maintainable code and solutions built to scale. What I Can Help You Build ************************** • SaaS Platforms (MVP to Enterprise) • AI-Powered Applications & AI Agents • Custom Web Applications & Dashboards • REST APIs & GraphQL APIs • Enterprise Software • Workflow Automation Platforms • Marketplace & E-commerce Solutions • Microservices & Cloud-Native Applications • Third-Party API Integrations Technical Expertise ******************** Backend ^^^^^^^^^ • Ruby on Rails 7/8 • Python (Django, FastAPI, Flask) • Node.js (Express.js, NestJS) • PHP (Laravel) Frontend ^^^^^^^^^ • React.js • Next.js • TypeScript • JavaScript • HTML5 • CSS3 • Tailwind CSS • Material UI • Bootstrap AI & Automation ^^^^^^^^^^^^^^^ • OpenAI (GPT-4.1 / GPT-5) • AI Agents • LangChain • Retrieval-Augmented Generation (RAG) • LLM Integrations • NLP • Prompt Engineering • Intelligent Workflow Automation Databases ^^^^^^^^^^ • PostgreSQL • MySQL • MongoDB • Redis • SQLite Cloud & DevOps ^^^^^^^^^^^^^^^^ • AWS • Microsoft Azure • Google Cloud Platform (GCP) • Docker • Kubernetes • CI/CD Pipelines • GitHub Actions • Nginx APIs & Integrations ^^^^^^^^^^^^^^^^^^ • REST APIs • GraphQL • Stripe • PayPal • Firebase • Twilio • OAuth 2.0 • JWT Authentication • Webhooks Experience & Results ********************* ✔ Successfully delivered projects across SaaS, Healthcare, Retail, FinTech, Education, Logistics, and Enterprise industries. ✔ Built scalable SaaS products and AI-powered applications for startups and growing businesses. ✔ Designed secure backend systems, modern APIs, and cloud-native architectures. ✔ Improved application performance, scalability, and long-term maintainability. Why Work With Me? ******************** I don't just develop software, I partner with clients to solve business problems. I take ownership, communicate proactively, recommend better technical solutions, and build products that are reliable, scalable and ready for real-world growth. If you're looking for a developer who combines strong technical expertise with a business-first mindset, I'd be happy to discuss your project. Core Skills: *********** AI/ML • Ruby on Rails • Python • React • Next.js • Node.js • PHP • TypeScript • SaaS Development • FastAPI • Django • Laravel • Express.js • NestJS • REST API Development • GraphQL • OpenAI • AI Agents • LangChain • AWS • Azure • GCP • Docker • Kubernetes • PostgreSQL • MongoDB • Redis • Stripe • Web Application Development

Senior Full-Stack Engineer and AI Developer with 17+ years of experience. I help startups and product teams build MVPs, AI-driven platforms, and scalable systems that deliver measurable business results. Skilled in React, Next.js , Node.js, Python, PHP, FastAPI, and AWS, I build production-grade software that’s fast, reliable, and built to last. Invite me to your project or send me a direct message if you need a senior engineer who can move fast, design clean systems, and deliver investor-grade reliability. Over my career, I’ve worked as a Full Stack Developer, Backend Developer, and AI Workflow Engineer, launching 70 + products across SaaS, Fintech, Healthtech, and Automation. My background includes contributions to three IPOs (Bird, ZipRecruiter, TrueCar) and hands-on leadership in scalable system design, automation, and AI infrastructure. What I Do - MVP & Product Development: Build and launch investor-ready products in weeks with clear blueprints and milestones. - Full-Stack & Backend Development: React, Node.js, Angular, Vue.js, FastAPI, Django, PHP, Laravel,  and Python for high-performance SaaS and AI platforms. - Web Design & Frontend Development: Clean, responsive HTML5 / CSS / JavaScript interfaces, optimized for UX and conversion.  AI & Workflow Automation: RAG pipelines, intelligent agents, predictive analytics, Chat AI, and Voice AI integration. - AI Architecture: LLM orchestration, data pipelines, vector databases, and explainable AI systems. - API Integration & Cloud Systems: REST / GraphQL APIs, third-party integrations, AWS, GCP, Docker, Kubernetes, Terraform, CI/CD, 99.99 % uptime optimization. - Mobile & Cross-Platform Apps: React Native Developer and iOS / Android Developer for health, service, and data-driven apps with AI features. Skills & Stack Frontend: HTML, HTML5, CSS, JavaScript, React, Next.js, Angular, Vue.js, Tailwind, Material-UI, Supabase, responsive UI/UX for web and mobile Backend: Node.js, FastAPI, Django, Flask, Go, Laravel, Nest.js, PHP, Java Languages: JavaScript, TypeScript, Python, PHP, Golang Databases: MySQL, PostgreSQL, MongoDB, DynamoDB AI & ML: LangChain, LangGraph, TensorFlow, RNN, Ensemble Models, AI Agents, Artificial Intelligence Architectures, Voice AI, Chat AI, Predictive Systems DevOps & Cloud: AWS, GCP, Docker, Kubernetes, Terraform, CI/CD CMS & Web Platforms: WordPress, custom headless CMS, API integrations Mobile: React Native, Swift (iOS), Kotlin (Android) Architecture: Microservices, Event-Driven Design, Agent-Oriented Systems, Cloud-Native Infrastructure How I Work Every engagement starts with a clear technical blueprint defining architecture, milestones, and delivery strategy. I communicate through RFCs, weekly progress reports, and production-ready code — combining speed, reliability, and accountability. Results Rain (Fintech): scaled payment infrastructure → raised $58 M Series A ChargeFuze (IoT): rebuilt backend for nationwide rollout → achieved 99.99 % uptime Volta (Crypto): delivered MVP in 8 weeks → raised $4 M seed ResiQuant (AI / Proptech): launched predictive analytics platform → raised $4 M seed Across 70 + builds, clients have accelerated delivery by 3–5 ×, reduced engineering costs by 50–70 %, and achieved enterprise-level reliability. Risk-Free Collaboration • One-sprint trial (you keep all deliverables) • 14-day satisfaction or stop guarantee • Code reviews, QA, and CI/CD standards in every engagement I work best with teams that value clarity, speed, and technical depth. Whether you need a Full-Stack Engineer, Full Stack Developer, Python Full Stack Developer, React Developer, Next.js Developer, SaaS Developer, Web Developer, WordPress Developer, Mobile App Developer AI Architect, Automation Developer, Python Developer, React Native Developer, iOS Developer, Backend Developer, or Web Designer, I’ll help you design, build, and launch systems that scale with confidence.