💻 Back-End Development ⚡️ Full Stack Development ⚡️ Desktop Software Development 📜 .NET and C#: 🔹 ASP.NET Core 🔹 Entity Framework Core 🔹 FluentValidation 🔹 MediatR 🔹 Automapper 🔹 FastExpressions 🔹 Serilog 🔹 SignalR 🔹 Identity Framework Core 🔹 BenchmarkDotNet 🔹 xUnit, nUnit, FluentAssertions, NSubstitude, Bogus 🔹 Polly 📜 Databases: 🔹 MS SQL 🔹 MySQL 🔹 Postgres 🔹 MongoDB 📜 Architecture: 🔹 DDD 🔹 Event Driven Design 🔹 Clear Architecture 💻 Front-End Development ⚡️ Mobile App Development ⚡️ Full Stack Development 🚀 Expertise in: 📱 React & React Native (Expo): Building dynamic web and mobile applications 🌐 Modern Frontend Frameworks: Proficient in React, Angular 2+, Vue.js, and Next.js for responsive, scalable web development 🔧 Backend Knowledge: Familiar with PHP (Laravel, Slim, Lumen) and Node.js for basic backend integration 🛒 CMS & E-Commerce: Expertise in WordPress, WooCommerce, Plentymarkets, Magento theme/plugin development, and custom integrations ✨ Clean, Efficient Code: Passionate about writing maintainable and scalable solutions for a smooth user experience 🔗 API Integration: Skilled in SOAP/RESTful API development and integration for seamless client connectivity 💪🏻The following stack that successfully used: 🔹SCSS 🔹CSS 🔹HTML 🔹TypeScript 🔹RXJS 🔹NGRX 🔹NextJS 🔹ReactJS 🔹REDUX 🔹SAGA 🔹Promises 🔹Server Side Rendering based on NextJS 🔹NestJS 🔹MySQL 🔹ExpressJS 🧠 AI: 🔹 Machine Learning 🔹 Large Language Models (LLM) 🔹 Prompt Engineering 🔹 LangChain 🔹 OpenAI 🔹 Anthropic 🔹 Google GenAI 🔹 FAISS 🔹 Retrieval Augmented Generation (RAG) 𝙎𝙚𝙖𝙧𝙘𝙝 𝙛𝙤𝙧 𝙢𝙚 𝙪𝙨𝙞𝙣𝙜 𝙩𝙝𝙚𝙨𝙚 𝙠𝙚𝙮𝙬𝙤𝙧𝙙𝙨: C#, ASP.NET Core, .NET Framework, Entity Framework, SQL Server, PostgreSQL, MySQL, REST APIs, JSON, XML, GraphQL, Razor, Blazor, Php, Python, Angular, React, Vue.js, JavaScript, TypeScript, HTML5, CSS3, SCSS, Bootstrap, Tailwind, Azure (App Services, Functions, DevOps, Blob Storage), AWS, Docker, Kubernetes, Microservices, CI/CD, Git, GitHub, GitLab, TDD, xUnit, NUnit, Dapper, Swagger, OAuth, JWT, WebSockets, RabbitMQ, Redis, SignalR, Sitecore, Umbraco, Kentico, DNN, Orchard Core, Contentful, Strapi, ADO.NET, ASP.NET MVC, AngularJS, AJAX, Adobe Photoshop, ASP.NET Web API, Google Analytics, Google Chrome Extension, Ecommerce Website, Browser Extension, Web Application, Website Redesign, API, API Integration, Desktop Application, Website Optimization, Software Debugging, Web Development, Database Development, AI Agent Development, WildFly, Apache HTTP Server, Eclipse Jetty, Microsoft IIS, IBM WebSphere, SQLite, Mimer SQL, Azure Cosmos DB, MongoDB, EC2, ECS, Lambda, S3, RDS, CloudFormation, AWS Backup, IAM, CloudFront, CloudWatch

As a forward-thinking Senior Engineer and Team Leader with over two decades of experience, I work as a full stack developer specializing in Video Streaming and real-time communication solutions based on WebRTC. I combine strong architecture thinking with hands-on delivery, acting both as a technical leader and a practical full stack web developer who understands real product needs and builds scalable WebRTC-powered systems. Today, my focus as a full stack developer includes the strategic application of advanced AI technologies alongside WebRTC-based real-time communication platforms. I actively work with OpenAI APIs, Whisper for speech recognition, LLaMA2 for open-source large language models, and LangChain for building AI-driven workflows. This positions me as a full stack developer AI who can integrate intelligence directly into real-world WebRTC video and streaming products. Throughout my career as a full stack developer, I’ve contributed to Telemedicine, Online Education, and Real-time Entertainment by building WebRTC-powered communication platforms. I’ve led teams delivering webinar platforms, live chat systems, and complex real-time applications, acting both as a senior web developer and system architect who ensures scalability, security, and long-term maintainability for WebRTC infrastructures. In AI-focused projects, I operate as a full stack developer who bridges data, logic, and user experience inside WebRTC-enabled applications. My team and I integrate conversational AI, speech-to-text, and knowledge-driven systems using OpenAI, Whisper, and LLaMA2. With LangChain, we design intelligent pipelines that automate workflows and data processing, enhancing WebRTC communication platforms with AI-driven capabilities. WebRTC remains a core part of my work as a full stack developer, especially for building high-performance real-time systems. We design everything from low-latency WebRTC infrastructure to complete applications, delivering solutions that work seamlessly across web and mobile. This includes building scalable video streaming app architectures capable of handling thousands of concurrent users through WebRTC. As a full stack developer, I also provide consulting and development services across North America and Europe, helping companies design and build WebRTC-based video communication platforms. I work with companies in Entertainment, E-Learning, Healthcare, and Finance. Depending on project needs, I act as a React developer, Wordpress developer, or mobile app developer while implementing scalable WebRTC solutions. Our services as a full stack developer team include system architecture, UI/UX design, and custom development of WebRTC streaming and real-time communication platforms. We build modern interfaces, robust back-ends, and real-time systems, including secure WebRTC video stream delivery for live and on-demand use cases. We have worked with most of the major Webinar and Online Education platforms on the market, delivering solutions as a full stack developer team that understands both the business and technical sides of WebRTC video streaming products. We frequently modernize existing platforms and migrate legacy systems to scalable cloud-based architectures built around WebRTC technologies. As a full stack developer, I’ve led the creation of webinar systems, live chat apps, WebRTC video conferencing platforms, real-time video auctions, messengers, e-learning platforms, telemedicine solutions, dating apps, Twitch-like platforms, TikTok-style apps, VoD systems, and live shopping platforms. Many of these solutions rely on modern stacks including full stack developer React and full stack Lavarel approaches integrated with WebRTC. Beyond development, I support clients as a full stack developer with load testing and performance optimization for large-scale WebRTC streaming systems. My background across front-end, back-end, databases, and cloud platforms allows me to lead projects end-to-end and deliver reliable, production-ready WebRTC platforms. I invite you to collaborate with me as a full stack developer who understands AI, WebRTC, and scalable real-time product development. Together, we can build innovative WebRTC-powered solutions that align with your business goals and grow with your users.

💡 100% Job Success. Top Rated Senior Software Engineer with 20+ years of experience. Expert of: Magento 2 Adobe Commerce, WordPress, Laravel, Symfony. E-commerce Solutions Architect with extensive experience delivering scalable platforms, APIs, CRM and ERP integrations, SEO, and DevOps environments. Specialist in end-to-end solutions, custom development, and high-availability systems. Zero-Downtime delivery. Key strengths include translating business requirements into robust code, resolving real-world issues. 💡 Why this is the right choice for your requirements: » Premium engineering » Reliable delivery » Full ownership » Proven, predictable business results Platforms: Adobe Commerce - Magento Open Source | Enterprise | Cloud | Hyvä | Hyva | Venia PWA Studio | Adobe Experience Manager (AEM) | ScandiPWA | GraphCommerce | Aimeos | Saleor | Spryker | MedusaJs | MercurJS | Vendure | Vue Storefront | Sylius | Shopware | PrestaShop | WordPress | WooCommerce | BigCommerce | Bagisto | Pipedrive | ERPNext | Saleron | Frappe » AI | ML | LLM | Generative AI | AI and MCP + eCommerce | SaaS » Strong technical background in Symfony | Laminas | Laravel | CodeIgniter | Yii | Yii2 | Zend Framework | Phalcon | FuelPHP | Drupal | Slim | CakePHP | TYPO3 | Slim | Lumen | Mezzio | Spiral Skills: » Stack: PHP | Typescript | Python | JavaScript | C | C++ | Rust | XML | JSON | YAML | HTML/CSS | Bash | React/ReactJs | Next/NextJs/Next.js | Node | Vue JS | jQuery | Angular JS | Knockout JS | RequireJS | Stimulus | Express | NestJS | Ruby » DB: MySql | PostgreSQL | TimescaleDB | MariaDb | Persona Db | TokuDB | WebScaleSQL | Drizzle | Amazon Aurora | Google Cloud SQL | ApsaraDB | OurDelta | Vitess | MSSql | MongoDB | Redis Key/Value » Indexing: Opensearch | Manticore | Solr | Sphinx | Elasticsearch » Docker | docker-compose | Podman | podman-compose | Proxmox | Nginx | Angie | Apache | Lighttpd | Varnish | Varnish Plus | Redis | Valkey | RabbitMQ » PIM: Pimcore | Inriver | Plytix | Bluestonepim | Salsify | Akeneo | UnoPim | Atropim | OpenPIM | Icecat | Custom PIM development: Backend | Frontend | SRM, OMS, WMS, Pimcore, MDM » Mobile Solutions Architect: compatible with Apple App Store | Google Play Store | Microsoft Store | Huawei Appgallery | Samsung App Store » Integration's Solutions Architect: Amazon | eBay | Walmart | Etsy | Tiktok | Alibaba | Rakuten | Newegg | Bonanza | Wish | Zalando | MercadoLibre | Bed | Bath & Beyond - BedBathAndBeyond | Wayfair | Facebook Marketplace / Facebook Shop | Craigslist | BestBuy | Sears | Homedepot | Nextdoor | CustomMade | RubyLane | Poshmark | Chairish | StockX | Grailed | OfferUp | Depop | Best Buy | SAP | Vinted | ThredUp | 1stdibs | Faire | Revolve | Farfetch | ASOS | Houzz | Folksy | Mercari | AliExpress | Taobao | Lazada | Allegro | Flipkart | Cdiscount | BhPhotoVideo | Catch | TradeMe | eBid | CDON | Carrefour | Kaufland | Allegro | LeroyMerlin | ELECLERC | ePrice | RueDuCommerce | Conforama | Fnac | Darty | Worten | MediaWorld | Mediamarkt | Mediamarkt | Google Shopping/Google Merchant | Michaels | Reverb | Mercadolibre | Dropshipping | NetSuite | SAP | Sanity | Figma | eProcurement Solution - Punchout cXML Integration | integratori io - Celigo Integration Platform » B2B | B2C | C2C | C2B | B2G | G2B | G2C | C2G | B2E | D2C | B2B2C | B2G2C | Marketplace development | Web3 | Telegram bots » Salesforce B2C Commerce Cloud (SFCC) | OCAPI (Open Commerce API) | SFRA (Storefront Reference Architecture) » Wordpress Solutions Architect: WooCommerce | LearnDash | Divi | Kadence | The events calendar | Give » UNIX / Linux: Setup | Configuration from the scratch | Administration | AWS | Azure | GCP (Google Cloud Platform) | OVHcloud | Digitalocean | WPEngine | Contabo » CI/CD Magento 2 infrastructure: Kubernetes - k8s / Terraform » Trading Bot | AI Crypto tracker | HFT - HIGH-FREQUENCY TRADING Bots with support of 100+ exchanges. » Fiat + Crypto payment gateways development; » Data Scraping: docker-browser-behavior-based data extraction solutions for target websites | with delivery of structured output in required formats such as CSV | YAML | and others, e.g. products.csv » VPN | OpenVPN | Openconnect | XRAY | VLESS | XTLS | REALITY | XUDP | PLUX | XTLS | XHTTP | REALITY | uTLS | PassWall | v2ray | ShadowSocks | socks5 | Shadowrocket | Amnezia | singbox | mihomo 💡 Dmitrii’s Delivery Performance: 1. Takes full ownership of technical solutions and consistently ensures delivery of the desired results. 2. Accountable for end-to-end solution delivery, with a strong focus on quality, reliability, and business value. Dmitrii provides a free comprehensive analysis. Send Dmitrii a message to discuss your platform, current challenges, and business goals

I help product teams move from "working but fragile" to "scalable and reliable." When you scale, your architecture breaks. When you integrate third-party APIs, data syncs fail. When you deploy, downtime costs money. I architect systems that solve these problems at their root—not patch them. With 85+ projects with 7,000+ working hours, and $200K+ in products architected, I've learned the difference between code that works today and systems that work at enterprise scale. THE PROBLEMS I SOLVE Scaling Web Applications: Your current architecture can't handle 10K concurrent users? I architect full-stack systems using React, Next.js for frontend, Node.js and NestJS for backend, with TypeScript for type safety. For databases, I optimize PostgreSQL for relational data and MongoDB for document-heavy workloads, implement Redis caching, and deploy on AWS infrastructure with CI/CD pipelines. The result? Latency down 60%, infrastructure costs down 30-40%. WordPress & Custom Web Development: Running a WordPress site but hitting its ceiling? I build custom WordPress solutions with PHP plugins, child themes, and integrations that typical agencies can't deliver. Or I build headless WordPress backends with React frontends for complete control over your web design and user experience. Shopify & E-Commerce: Shopify hitting its limitations? I architect custom backends using Node.js and Next.js, integrate Shopify APIs, orchestrate payments with Stripe, implement real-time inventory sync with PostgreSQL, and build conversion-focused web design that scales. Perfect for stores needing functionality beyond Shopify's platform. API Integration & Data Sync: Struggling with third-party APIs (HubSpot, Salesforce, custom webhooks)? I architect integration systems using REST APIs, GraphQL for query efficiency, and event-driven architecture. Built with proper error handling, monitoring, and reliability—data doesn't silently fail. Multi-Platform Development: Need your product on web, iOS, and Android without rebuilding three times? I architect unified systems using React Native that share 70%+ of code, with JavaScript/TypeScript across the stack and PostgreSQL as the source of truth. AI-Powered & Agentic Development: Embedding LLMs, RAG pipelines, agentic workflows, or autonomous agents without budget explosion? I architect intelligent systems using Python for data science, Node.js for orchestration, vector databases for semantic search, and cost optimization throughout. Agentic development is my specialty—I build systems that think, not just execute commands. DevOps & Infrastructure: Your deployment process is manual and scary? I design and implement CI/CD pipelines, containerization with Docker, infrastructure as code with Terraform, serverless architectures where they make sense, and monitoring/observability so you sleep at night. Zero-downtime deployments are standard in my architecture. Website Design & Redesign: Redesigning your web presence? I combine developer expertise with designer sensibility. Using Figma for design, I build responsive websites with HTML5, CSS, and JavaScript that are pixel-perfect, SEO-optimized, and conversion-focused. HOW I WORK First, I diagnose. I ask: "What's actually breaking when you scale? What's your real constraint?" Not everyone needs GraphQL or serverless; sometimes a well-architected REST API with proper caching solves it cheaper and faster. Then, I architect before coding. You see the full technical strategy upfront—which frameworks matter (React vs Next.js?), which databases (PostgreSQL vs MongoDB?), which infrastructure (AWS vs serverless?). You understand the trade-offs. Finally, I execute with reliability first. Whether it's DevOps, agentic automation, or traditional backend logic, I build with monitoring, error handling, and graceful degradation. Your platform doesn't crash, and your next engineer can maintain this. RECENT PROJECT: BigPhotoHunt (Full Stack Ownership) Architected a high-traffic social platform from ground up using React and Next.js frontend, Node.js/NestJS backend, PostgreSQL database, and AWS infrastructure with containerized Docker deployments. Implemented CI/CD pipelines for zero-downtime releases. Scaled from 0 to 50K+ daily active users with 100+ production deployments and zero incidents. Optimized Core Web Vitals (LCP: 2.8s → 900ms). TECHNICAL EXPERTISE Languages: JavaScript, TypeScript, Python, PHP Frontend: React, Next.js, HTML5, CSS, Figma Backend: Node.js, NestJS, Express, FastAPI Databases: PostgreSQL, MongoDB, Redis Platforms: WordPress, Shopify (API Integration) Cloud & DevOps: AWS, Docker, Terraform, CI/CD, serverless architecture APIs: REST, GraphQL, Webhook orchestration Emerging: RAG pipelines, vector databases, agentic workflows, LLM integration Specializations: API Integration, zero-downtime deployment, real-time features, web design and redesign LET'S TALK —Usman

Hi there! I’m 𝗣𝗿𝗮𝘀𝗵𝗮𝗻𝘀𝗵𝗮 - a Full Stack Developer with 5+ years of experience delivering high-quality, cloud-native web applications. I specialize in building scalable solutions using AWS, GCP, and modern frameworks like React, Node.js, and Python. From frontend interfaces to backend systems and cloud architecture, I bring full-cycle expertise to every project. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀: 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React, TypeScript, JavaScript 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js, Express, Python 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, Redis, MongoDB 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: • AWS (Lambda, S3, API Gateway, ECS, DynamoDB) • GCP (Cloud Functions, Firestore, App Engine) 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 & 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀: REST APIs, WebSockets, Model Context Protocol (MCP) 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? • Proven track record building reliable, secure, and efficient systems • Deep experience with cloud-native services and multi-tenant SaaS platforms • Strong understanding of Model Context Protocol (MCP) for context-aware applications and scalable microservices • Clean, maintainable code and clear communication throughout every stage I’m passionate about solving real-world problems through tech and delivering results that truly make a difference. Let’s collaborate and bring your idea to life!

Java Spring Boot full stack developer specializing in fintech platforms and payment systems - Stripe, Plaid, and custom payment gateway integrations for enterprise and growing startups. I build secure, scalable backend systems that handle real money: wire transfers, EFT payments, subscription billing, and bank integrations. My work sits at the intersection of clean Java architecture and financial compliance: Spring Security, ISO 20022, PCI-aware design, and AWS serverless infrastructure. My core focus is payment gateway integrations: Stripe integration, Plaid integration, Interac, and custom EFT/Wire flows built on Spring Boot microservices designed for high-volume transaction processing. I also deliver full fintech SaaS platforms from MVP to production-ready architecture, AWS serverless infrastructure using Lambda, Fargate, SQS/SNS and Aurora PostgreSQL, and React frontends connected to financial backends. How I work: I start with a technical audit or business analysis to map exact requirements before writing a line of code. Every integration is documented, tested with JUnit, and handed over with internal team training so you can maintain and extend it in-house. Recent work: Delivered a full Interac payment integration for a UK-based fintech expanding into Canada, launched in 20 days using Java microservices and ISO 20022 standards with zero post-launch issues. Separately scaled a B2B payment SaaS platform to handle 10x transaction volume using AWS serverless architecture, cutting infrastructure costs by 30%. If you're building a fintech platform, integrating a payment gateway, or need a reliable Java backend partner for the long term, let's talk.

🚀Your last developer built features. I build outcomes. I am Simranjeet, a full-stack engineer and AI integration specialist with 7+ years of experience turning complex ideas into production-ready systems. Startups and growing teams hire me when they need someone who can think like a founder, build like an engineer, and deliver without hand-holding. No overcomplicated solutions. No disappearing after delivery. Just clean, scalable systems that work when it matters. Skills and Technologies: Frontend Technologies: - Languages: HTML5, CSS3, JavaScript, TypeScript - Frameworks: React, Vue.js, Next.js - CSS Frameworks: Tailwind CSS, Bootstrap, Material UI - Mobile: React Native, Flutter Backend Technologies: - Languages: Node.js, Python, TypeScript - Frameworks: Express.js, Django, Flask, FastAPI, NestJS - API Development: RESTful APIs, GraphQL, WebSocket - Microservices: Docker, Kubernetes, Kafka Databases: - SQL: MySQL, PostgreSQL, MSSQL, SQLite - NoSQL: MongoDB, DynamoDB - Search Engines: Elasticsearch, Solr - Caching: Redis, Memcached Cloud & DevOps: - Providers: AWS, Azure, Google Cloud, DigitalOcean - Serverless: AWS Lambda, API Gateway, Step Functions, GCP Functions, Azure Functions - Containerization and Orchestration: Docker, Kubernetes, OpenShift, AWS ECS/EKS, GKE - CI/CD: Jenkins, CircleCI, GitLab CI, Travis CI, Bitbucket Pipelines, GitHub Actions, Vercel - IaC: Terraform, CloudFormation, Ansible, Puppet, Chef - Monitoring and Logging: Prometheus, Grafana, ELK Stack, Datadog, New Relic AI and Automation: - AI and LLMs: OpenAI, LangChain, LangGraph, Vertex AI, Claude, Gemini - RAG and Vector Databases: Pinecone, Weaviate, ChromaDB, FAISS - AI Capabilities: AI Chatbots, AI Agents, NLP, TTS/STT, Image Generation, Prompt Engineering - Automation and Workflow: n8n, Zapier, Make Security: - Auth and Standards: OAuth, JWT, SSL/TLS, OWASP Best Practices - Tools: SonarQube, Snyk, Veracode Version Control and Collaboration - Version Control: Git, GitHub, GitLab, Bitbucket - Project Management: Jira, Trello What I Can Help You With: - SaaS product development, MVP to production-ready - AI chatbots, virtual agents, and multi-agent workflows - RAG systems for knowledge-based assistants - Custom AI API integrations for CRMs and enterprise tools - Voice AI and real-time assistants - AI-powered automation workflows with LLM decision-making - Backend systems with complex logic and APIs - Full-stack web apps and dashboards - Cloud-native deployments with CI/CD and monitoring - Rebuilding or improving platforms that are not scaling Project Experience: - Built AI-powered SaaS platforms for legal, HR, and sales workflows using React, Next.js, FastAPI, and Node.js - Developed multi-agent AI workflows and autonomous agents using LangChain, LangGraph, and custom pipelines - Built AI automation workflows using n8n, Make, and Zapier with LLM decision-making - Implemented RAG-based solutions with vector search (Pinecone, Elasticsearch, Redis) for smart assistants - Created real-time APIs (REST, GraphQL, WebSockets) for high-traffic applications - Integrated voice AI pipelines using Whisper, ElevenLabs, and VAPI - Deployed full-stack apps on AWS and GCP using Docker, CI/CD, and secure auth (JWT, OAuth) Industries I have worked In: - AI & SaaS, FinTech, LegalTech, Healthcare, HR Tech, EdTech, Marketplaces, Logistics, Enterprise Platforms, Automation Systems If you are looking for a developer who can take ownership, think beyond the code, and deliver something that actually works in production, let's talk. Send me a message with what you are trying to build or fix. I will give you an honest assessment and a clear plan to get there. Let's build something great together. Best regards, Simranjeet

🏆 Top Rated Plus Upwork Freelancer ⭐ Trusted by Startups & Growing Businesses 🤝 Long-Term Technology Partner 🤖 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 | 𝗥𝗔𝗚 | 𝗠𝗖𝗣 | 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗔𝗜 𝗦𝗮𝗮𝗦 I help startups and businesses design, develop, and scale production-ready AI applications that solve real business problems. From AI agents, RAG systems, and MCP integrations to AI workflow automation, AI voice solutions, and AI-powered SaaS platforms, I build end-to-end products that integrate seamlessly with existing systems and workflows. My expertise goes beyond connecting LLM APIs. I engineer intelligent AI systems that can reason, retrieve knowledge, use external tools, automate complex business processes, and deliver reliable, scalable solutions that create measurable business value in production. With 9+ years of full-stack engineering experience, I've built and scaled SaaS platforms, AI products, internal business systems, and cloud-native applications used by startups and growing companies. I understand not only how to integrate LLMs, but also how to design the surrounding architecture that makes AI systems secure, reliable, and maintainable. 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 🤖 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 & 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 • AI Customer Support Agents • AI Sales & Lead Qualification Agents • AI Research Assistants • Multi-Agent Systems • AI Voice Agents • AI Workflow Automation • RAG Knowledge Bases • MCP Server Integrations • Tool Calling & Function Calling • OpenAI & Claude Integrations • Structured LLM Outputs • Prompt Engineering • LangGraph & Agentic Workflows • AI Document Processing • Semantic Search 🚀 AI-Powered SaaS Applications I build complete AI-powered web applications from architecture to deployment. This includes: • AI SaaS Products • Internal Business Platforms • AI Dashboards • Knowledge Management Systems • AI Search • AI Chat Interfaces • Multi-Tenant SaaS • Subscription Platforms • Admin Portals • API Platforms ⚙️ Backend Engineering • Python (FastAPI, Django) • Ruby on Rails • Node.js / NestJS • REST APIs • GraphQL APIs • PostgreSQL • Redis • MongoDB • Background Jobs • Event-Driven Systems • Webhooks • Stripe & Stripe Connect • Authentication & RBAC • Microservices 🌐 Frontend • React • Next.js • TypeScript • Vue.js • Tailwind CSS • Responsive UI • Progressive Web Apps ☁️ Cloud & Infrastructure • AWS • Google Cloud • Docker • Serverless Deployments • CI/CD Pipelines • PostgreSQL • pgvector • Pinecone • Redis • Monitoring & Logging Recent Projects AI Customer Support Platform Built an AI-powered customer support platform combining AI voice agents, RAG, and external integrations. The system handled inbound customer conversations, retrieved company knowledge in real time, executed business workflows, and significantly reduced the need for manual support. AI Legal SaaS Platform Designed and developed a multi-tenant LegalTech platform with secure authentication, Stripe Connect billing, webhook infrastructure, document management, and role-based access control for enterprise customers. AI Financial Analytics Platform Developed scalable backend services processing high-volume cryptocurrency market data using asynchronous pipelines, exposing analytics through secure APIs and real-time dashboards. AI Workflow Automation Built intelligent workflows that connected LLMs with external APIs, business systems, and internal tools, allowing AI agents to perform complex multi-step tasks autonomously. Technologies Artificial Intelligence OpenAI • Claude • LangGraph • LangChain • LlamaIndex • MCP • RAG • Function Calling • Tool Calling • Prompt Engineering • AI Automation • AI Agents • Semantic Search • Vector Databases Backend Python • FastAPI • Django • Ruby on Rails • Node.js • NestJS Frontend React • Next.js • TypeScript • Vue.js • Tailwind CSS Databases PostgreSQL • pgvector • Pinecone • Redis • MongoDB Infrastructure AWS • Docker • CI/CD • Serverless • REST APIs • GraphQL • Stripe • GitHub Actions How I Work I don't just build features. I help clients make sound technical decisions that will still make sense a year from now. That means thinking carefully about architecture, scalability, maintainability, security, and the overall product strategy before writing code. Whether it's designing an AI agent, integrating OpenAI or Claude into an existing platform, building a scalable SaaS application, or modernizing backend infrastructure, I focus on delivering solutions that are reliable, practical, and built for long-term growth. If you're looking for someone who understands both AI engineering and product development, I'd be happy to discuss your project. #lovable #lovabledeveloper #aiproductbuilding

I'm a Python backend / full-stack developer working with automation, backend systems, and data collection. I help teams: fix bugs and resolve urgent production issues build and maintain backend services and APIs create low-level Python automation scripts automate workflows using n8n, Make, and external APIs develop web scrapers and data parsers (including dynamic websites) I can quickly join an existing project to stabilize and improve it, or build a backend / automation solution from scratch. What I can help you with: Backend development with Python (FastAPI, Django) REST APIs, WebSockets, background jobs Databases: PostgreSQL, SQLAlchemy Automation: Python scripts, n8n, Make Web scraping & data pipelines (auth, rate limits, anti-bot) Bug fixing, refactoring, ongoing support Tech stack: Python, FastAPI, Django PostgreSQL, SQLAlchemy React, JavaScript, TypeScript Docker, Docker Compose CI/CD (GitHub Actions, GitLab CI) AWS (EC2, S3, Lambda, ECS), DigitalOcean, Heroku NGINX, Caddy If you're looking for a reliable Python backend developer to help with your project feel free to reach out.

Need a Full Stack Developer who ships production-ready Node, React, Next.js, and Python apps with AI built in from day one? I help SaaS teams and founders build, scale, and automate so your product grows without technical bottlenecks. What sets me apart is a rare combination: 10+ years of full-stack depth across React, Next.js, Node.js, TypeScript, and AWS and hands-on AI integration experience building custom AI models, automation workflows, and LLM-powered features into live production systems. I've led architecture decisions at the Tech Lead level, not just written tickets. Also worked at the architecture level, making system decisions that hold up as products scale. This includes designing systems with security and compliance in mind, including experience aligning architectures with SOC 2 and GDPR requirements. 🏆 Top Rated on Upwork | 100% Job Success Score 💰 $30K+ earned across 26 projects ⏱ 1,900+ hours with global clients 🚀 Built and scaled real-time systems, SaaS platforms, and REST APIs Here's what I can build for you: 🤖 AI Integration → LLM-powered features and chatbots (OpenAI, LLaMA, custom models) → Automation workflows and intelligent data pipelines → AI embedded into your existing product ⚛️ Full-Stack Development → React and Next.js frontends with TypeScript → Node.js and Express backends with clean architecture → Real-time apps using WebSockets 🗄️ Databases, Backend & APIs → MySQL, PostgreSQL, MongoDB with Optimized queries and data architecture → REST APIs, microservices, and secure third-party integrations ☁️ Cloud & DevOps → AWS infrastructure (Lambda, ECS, Amplify, CloudFront, S3) → CI/CD pipelines and automated deployments Clients I have worked with appreciate that I take ownership. I do not just follow instructions, I think through the system, suggest improvements, and focus on long-term stability. Some of my past work includes building an AI-driven analytics platform, a real-time crowdfunding system, and a live sports streaming platform with WebSocket-based architecture. Portfolio: jaiminbhanderi.vercel.app If you need a full-stack developer who can own the architecture, integrate AI, and deliver without hand-holding, send me a message. I typically respond within a few hours and am happy to jump on a quick call to scope your project.