👉 CLICK On Invite if you are Looking to implement the solution that will assist to accelerate your business 🏆 Full Stack Web App Developer | Top Rated Upwork Freelancer | , Always 5-Star Reviews | 100% JSS | 💰 $100K+ earned on Upwork | 3000+ hours worked on different projects 🌟 Built, Deployed & Released more than 26+ platforms on Ruby on Rails, React, Node, MEAN/MERN are mostly for the US and UK. 💻 Web Application Developer | helped scale a startup product to nearly 1,000,000 users, shaping my approach to performance and reliability. 🚀 Developed Award-Winning Web Applications Ruby on Rails, React, Node, MEAN/MERN and others. ✅ I work well with founders, CTOs, product managers, and teams that need clear communication across Ruby on Rails, React, Node.js, and Python products. 👋 Responsive Communication & Agile Methodologies & Ongoing Support Senior Full Stack Web App Developer with strong focus on Ruby on Rails, React, Node, MEAN/MERN, 15+ years of professional experience in developing reliable, scalable, and maintainable platforms to help startups and rapidly growing companies reach their goals with Ruby On Rails and MERN stack (MongoDB, Express.js, React.js, Node.js) without ruining what is already working. I can translate your complicated business logic into digital solutions via my skills in back-end development and the use of the latest front-end tools and cloud technologies. I have developed over 100 automation workflows and created web applications based on Ruby On Rails and MERN Stack that are being used and actively maintained by real companies today. * Backend Technologies: Ruby on Rails, RESTful APIs, MVC Architecture, Server-Side Development * Frontend Technologies: React.js, Next.js, AngularJS, JavaScript (ES6+), HTML5, CSS3 * Databases: PostgreSQL, MySQL, Database Design, Query Optimization * Cloud Services & DevOps: AWS, S3, Lambda, SNS, SQS, EventBridge, Route53, Amplify, Elastic Beanstalk, CodeCommit, CodeBuild, CodePipeline, CloudWatch, IAM, SES, * API Development & Integrations: REST API, GraphQL * Version Control & Code Repositories: GitHub, Bitbucket, GitLab * Other Technologies & Tools: SendGrid, Twilio, Zapier, Linux, Postman Working in this industry for more than a decade and the industries I worked with are, Healthcare, Real Estate, Social Platforms, Sports & On-Demand Services, Travel and Hospitality, Custom ERP, Fintech, EdTech, Media & Entertainment, trainer platforms, fitness, SaaS Platforms. Here are some of my enterprise projects each one of them has around Million users, the projects are Nearcut, SSL and proscenium. Nearcut is an appointment Booking system & marketplace for barbers. The idea is to grow your business more efficiently with the facility of the online booking system. SSL(.)com is a trusted provider of SSL/TLS certificates and public key infrastructure (PKI) solutions, empowering businesses to secure their digital presence. Proscenium is an event marketing agency that is fully focused on live and virtual events for business, and consumer audiences. You want a product built but lack the time to supervise your developer. What you want is somebody with passion, who is quick and delivers working code.A Ruby on Rails developer like me will help the founders, CTOs and product teams convert the requirements of their businesses into functional and ready-to-go solutions. I have plenty of experience as an AI Saas developer and my areas of experience are not limited to the implementation of the backend but extend to growth, retention and monetization of the product. The area of my expertise is web design and development in Ruby on Rails and MERN stack. I offer the whole lifecycle of the website - from web design, through development up to website maintenance. If you are looking for a Senior Full Stack Web App Developer / Sr. Ruby on Rails Developer that always write clean and quality code, and treat your product as his own. Let’s talk!

Senior Mobile Developer | Flutter & React Native Specialist 🚀 Architecting Scalable Mobile & Full-Stack Solutions Since 2014 💼 12+ Years of Engineering Excellence | Enterprise & Startup Scale ⚡ Hyper-Responsive Communication — Clear, Direct, and Action-Oriented Hi, I’m Sumanta. As a Senior Mobile Developer and Full-Stack Engineer, I specialise in building high-performance, cross-platform mobile applications and robust web ecosystems that scale seamlessly with your business growth. Over the past 12 years, I have partnered with startups and established enterprises worldwide to translate complex product visions into production-ready software. Whether you need a crisp MVP built from the ground up or a complex technical audit to optimize an existing app's performance and state management, I deliver future-ready code that performs flawlessly across devices. Core Capabilities ––––––––––––– -- Cross-Platform & Native Mobile Engineering -- Frameworks: Flutter, React Native (High-performance, single-codebase solutions) -- Native Development: iOS (Swift, Objective-C) & Android (Kotlin, Java) -- Optimization: Offline-first caching, real-time data synchronization, and advanced state management (Riverpod, BLoC, Redux). -- Advanced Features: AI integrations, secure digital wallets, and custom API/hardware interactions. Full-Stack Web Ecosystems & Architecture –––––––––––––––––––––––––––––––––– -- Modern Frontends: React, Next.js, and responsive web frameworks. -- Scalable Backends: Node.js (MERN/MEAN), Python (Django/Flask), and Laravel. -- APIs & Data: Secure RESTful & GraphQL API design, Firebase, and Firestore integration. -- Content Management: Headless CMS architectures and custom WordPress solutions. Why Clients Partner With Me ––––––––––––––––––––––––– -- Architectural Integrity: I don't just write code; I design clean, maintainable software architectures that your team can scale for years to come. -- Transparent Communication: You will always know exactly where the project stands. I prioritize proactive updates and fast, 30-minute response windows. -- Product-Minded Approach: I look at your project through a business lens, ensuring the technical execution perfectly supports your user experience and retention goals. -- End-to-End Reliability: From deep technical discovery and initial build-ready designs to post-launch support and performance tuning, I am dedicated to your long-term success. Let's build an application that drives your business forward. Click the "Invite to Job" or "Message" button above, and let’s discuss your technical goals.

🚀 Are you struggling to rank on Google? Looking for an SEO expert who delivers results and ROI? You're in the right place. I'm an SEO Expert with proven experience in On-Page SEO, Off-Page SEO, Technical SEO, and AI-Driven Search Optimization - helping businesses grow online with real, measurable results. Whether you're a startup, local business, e-commerce store, or SaaS company, I build SEO strategies tailored to your goals. 🔍 My SEO Services Include: ✅ On-Page SEO • Advanced keyword research (LSI + long-tail) • Meta tags, content optimization, internal linking • Core Web Vitals & UX improvements • SEO audits with action plans ✅ Off-Page SEO • High-quality backlink building • Guest posting & white-hat outreach • Local citations & NAP consistency • Competitor link analysis ✅ Technical SEO • Site speed & mobile optimization • Schema markup & structured data • Crawlability & indexation fixes • XML sitemaps, robots.txt, canonical tags ✅ AI Search Optimization • Optimizing for ChatGPT, Perplexity, Gemini • Featured snippets & voice search readiness • AI-prompt structured content strategies 🧰 Tools I Work With: Ahrefs, SEMrush, Surfer SEO, Frase, Screaming Frog, GA4, GSC, ChatGPT, Rank Math, Yoast, WordPress, Shopify & more. 📈 Why Clients Choose Me: ✔️ 100% white-hat SEO strategies ✔️ Clear communication & weekly updates ✔️ ROI-driven, long-term growth approach ✔️ Deep competitor & market analysis 🔗 Let’s turn your website into a traffic magnet and convert clicks into customers. 📩 Message me to get your SEO strategy in motion!

Hellllo, I'm Bhoomika🙂 I build AI powered mobile products from scratch - fast, clean, and production ready. If you have an idea that needs a real mobile app behind it, not a prototype, not a template, but a working product people can actually use, that's exactly what I do. I specialize in full-stack mobile + AI + backend development. Flutter, React Native, Node.js, Python - I own the entire stack, from the first screen to the server to the AI layer. No handoffs. No gaps. Just a complete, shippable product. What I've built 🚀 - 5+ years shipping production mobile apps across fintech, health, social, marketplace, and AI - Real time messaging, live location tracking, AI recommendations, voice agents, subscription billing - all from scratch, all production-grade - Every serious client has come back for the next build or stayed with me as a long-term technical partner What makes my work different 💡 - I help clients think through architecture early so they don't pay for rewrites later - I flag scope creep before it becomes a problem - I write clean, documented code so any developer can pick it up without confusion - I don't just ship features - I think about the product, the user, and the business behind it How I work with teams 🤝 - Comfortable as a solo builder owning the full product end-to-end - Can work embedded and dedicated within your existing team - I collaborate closely with designers, backend engineers, and product managers - Long term partnerships are something I genuinely enjoy - most of my best client relationships have grown that way I'm a great fit if you ✅ - Need a mobile app built from zero, Android, iOS, or both - Want AI features actually integrated into the product, not just bolted on - Need a strong backend supporting your app from day one - Want a developer who thinks about the full picture, not just the ticket - Are looking for someone to work dedicated and long-term with your team I'm not a fit if you ❌ - Need someone to fix or maintain an existing codebase - Are looking for the cheapest possible build - Want someone who just takes tickets and ships without thinking What I build with 🛠️ - Mobile: Flutter · React Native · Swift · Kotlin - Backend: Node.js · Python · Firebase · REST APIs - AI: OpenAI · Google Vertex AI · Gemini · AI Chatbots · Voice Agents - Database: MongoDB · MySQL · PostgreSQL - Tools: Figma · AWS · Docker · CI/CD I take on a focused number of projects at a time so every client gets my full attention. If you need a mobile product built right, and want someone who can grow with your product over time, let's talk. 🙂

I'm a seasoned freelance web developer with a strong focus on crafting exceptional websites & webapps. My expertise lies in creating immersive online experiences that seamlessly blend functionality with aesthetics. With a firm foundation in HTML, CSS, and JavaScript, I specialise in building responsive and user-friendly platforms that drive business growth. Over the years, I've had the privilege of collaborating with diverse clients, ranging from startups eager to make their mark to established enterprises seeking to enhance their online presence. My skill set encompasses a range of eCommerce platforms, including WooCommerce, Shopify, and Magento. I take pride in my ability to translate complex technical concepts into accessible solutions that meet each client's unique requirements. A key aspect of my approach is a deep commitment to understanding your business objectives. By delving into your goals and target audience, I ensure that every line of code contributes to an intuitive user experience and effective conversion strategies. From seamless payment gateway integration to comprehensive product catalog management, I provide end-to-end solutions that empower your online business. My dedication extends beyond the initial development phase. I believe in fostering long-term partnerships, offering ongoing maintenance and support to ensure your website remains at peak performance. Additionally, my proficiency in SEO techniques ensures that your platform doesn't just exist – it thrives in search engine rankings, driving organic traffic and boosting your digital visibility. If you're seeking a professional web developer who combines technical excellence with a client-centric approach, I'm here to help. Let's collaborate to bring your aspirations to life with a website that not only meets industry standards but also exceeds your expectations. Looking forward to the opportunity of working together. Best regards, Daniel

AI Automation Expert specializing in n8n, Chatbots, and LLM-powered solutions to streamline workflows, integrate AI tools, and scale businesses in Healthcare, Insurance, Real Estate, and beyond. Looking to automate workflows, build AI-powered apps, or integrate cutting-edge AI tools into your business? You’re in the right place. I specialize in AI-driven development, workflow automation, and intelligent integrations that save time, reduce manual work, and deliver measurable ROI. With expertise in n8n, AI chatbots, Large Language Models (LLMs), and ML-powered solutions, I’ve built scalable platforms for clients in Healthcare, Insurance, Real Estate, Appointment Booking Systems, Call Handling, and Documentation Management. 𝐎𝐮𝐫 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: - 𝗔𝗜 & 𝗔𝗴𝗲𝗻𝘁𝘀: GPT-4o, LangChain, n8n, Make, Zapier, Custom AI agent frameworks, Vector databases (Pinecone, MongoDB Atlas) - 𝗩𝗶𝗯𝗲 𝗖𝗼𝗱𝗶𝗻𝗴, 𝗔𝗜 𝗜𝗗𝗘𝘀 & 𝗡𝗼-𝗖𝗼𝗱𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: Cursor, Claude Code, Google Antigravity, OpenClaw, GitHub Copilot, Replit, Lovable, Bubble, Glide, Softr, Adalo - 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝐀𝐏𝐈: Node.js, Java, .NET, REST APIs / GraphQL - 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React, Flutter - 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 & 𝗦𝘁𝗼𝗿𝗮𝗴𝗲: MySQL, MongoDB, AWS S3, Firebase Storage, Supabase - 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: AWS (EC2, Lambda, RDS), Microsoft Azure, CI/CD pipelines, Infrastructure automation, Serverless architecture - 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻 & 𝗡𝗼𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: Firebase Authentication, Auth0, Firebase Cloud Messaging (FCM) - 𝗨𝗜/𝗨𝗫 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗶𝗻𝗴: Figma, Wireframing & Prototyping, User Research, Design Systems, Responsive & Mobile first Design, Usability Testing, Information Architecture - 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴: Google Analytics, Firebase Analytics - 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 & 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 𝗧𝗼𝗼𝗹𝘀: GitHub / GitLab, Jira, Trello - 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Salesforce, ServiceNow, GoHighLevel (GHL), Palantir, Google Workspace, Slack, Notion, HubSpot, Zoho, Pipedrive, Social Media APIs, Calendar integrations - 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴: Databricks, ML Pipelines, Data engineering & processing 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 & 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗪𝗲 𝗛𝗮𝘃𝗲 𝗕𝘂𝗶𝗹𝘁 𝗪𝗲 𝗵𝗮𝘃𝗲 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗺𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗮𝗰𝗿𝗼𝘀𝘀 𝘁𝗵𝗲 𝗳𝗼𝗹𝗹𝗼𝘄𝗶𝗻𝗴 𝗮𝗿𝗲𝗮𝘀: - AI-powered platforms and applications - Agentic systems & AI agents (multi-step workflows, tool-using agents) - AI-powered mobile and web applications (iOS, Android, Web) - LLM integrations (OpenAI / GPT, Claude, custom AI models) - RAG systems (vector search, embeddings, private knowledge bases) - AI chat and voice systems (real-time, low-latency interactions) - Recommendation engines and personalization systems - AI automation integrated into existing products - Full AI integration across mobile, web, and backend systems - Multi-role SaaS platforms and subscription-based products - Social and real-time platforms - Automation-heavy internal tools - Secure backend APIs and scalable cloud infrastructure WHY CLIENTS HIRE US: - 14+ years of tech expertise delivering AI, ML, and automation solutions - Proven track record building enterprise-level apps and integrations - Industry expertise in Healthcare, Insurance, Real Estate, Service Platforms, Marketplace, etc. - Focus on business outcomes, scalability, and security - Fast communication, clear documentation, and reliable delivery If you’re ready to integrate AI at scale, streamline processes, and future proof your business, let’s collaborate to bring your vision to life. SKILLS: #Artificial Intelligence (AI), #Machine Learning (ML), #Large Language Models (LLMs), #Generative AI, #Natural Language Processing (NLP), #Workflow Automation, #n8n Automation, #Chatbot Development, #API Integration, #Python, #Business Process Automation, #RPA (Robotic Process Automation), #LangChain, #RAG, #AI Agents, #Cloud Services (AWS, GCP, Azure) Let's schedule a quick 15 minute free consultation call to discuss your IDEA and explore how skills can contribute to your project success. Thank You

Your website is more than just an online presence. It's often the first impression your business makes, and it should be designed to build trust, attract customers, and generate results. I help businesses, startups, and agencies create modern, responsive, and conversion-focused websites that combine beautiful design with reliable development. Whether you need a brand-new website, a redesign, a landing page, or long-term website support, I deliver solutions that are clean, scalable, and easy to manage. With 10+ years of experience, 400+ completed projects, and $5K+ earned on Upwork, I have worked with businesses across multiple industries to build websites that not only look professional but also provide an excellent user experience. What I Can Do For You:- Website Design & Development: • Custom WordPress Websites • Elementor Pro Development • Webflow Development • Shopify Store Design & Development • Wix Website Design • Squarespace Websites • Landing Pages • Business Websites • Corporate Websites • Portfolio Websites • WooCommerce Stores • Website Redesign • Website Migration • Website Maintenance • Speed Optimization • Responsive Design UI/UX Design: • Figma Website Design • Wireframes • User Interface Design • Landing Page Design • Mobile Responsive Layouts Graphic Design & Branding I also help businesses create a consistent visual identity through professional graphic design services, including: • Logo Design • Brand Identity • Brand Guidelines • Marketing Materials • Brochures & Flyers • Social Media Graphics • Business Cards • Presentation Design • Packaging Design Why Clients Choose Me: ✔ Clean, modern, and professional design ✔ Mobile-first responsive development ✔ SEO-friendly website structure ✔ Fast-loading and optimized websites ✔ User-focused layouts that improve conversions ✔ Pixel-perfect implementation ✔ Clear communication throughout the project ✔ Reliable support after delivery ✔ On-time project completion Technologies & Platforms: CMS WordPress Shopify Webflow Wix Squarespace Tools Elementor Pro WooCommerce Figma Adobe Photoshop Adobe Illustrator HTML5 CSS3 JavaScript Industries I've Worked With Healthcare Real Estate Construction Travel Education SaaS E-commerce Professional Services Marketing Agencies Startups Small Businesses My Working Process: Understand your business goals. Plan the best user experience. Create a clean and modern design. Develop a fast, responsive website. Test everything carefully. Deliver a website that's easy to manage and built for long-term growth. Every project receives the same attention to detail, whether it's a simple landing page or a complete business website. If you're looking for someone who values quality, communication, and long-term partnerships, I'd be happy to discuss your project. Let's build a website that represents your business professionally and helps you grow with confidence.

I am a Senior QA Engineer with 5+ years of experience in Software Quality Assurance, delivering stable, scalable, and user-friendly products across web, mobile, and desktop platforms. I’ve worked with both fast-growing startups and enterprise-level SaaS products, including platforms with over 20M users and mobile applications with 190M+ downloads, ensuring smooth releases through strong collaboration with developers, product managers, and distributed teams. My experience include manual QA and automation testing, including functional, regression, exploratory, and e2e testing, along with UI/UX validation, cross-browser and cross-device testing, and API testing using Postman. I also build and maintain automation using Playwright, Cypress, and Selenium, focusing on critical user flows and reliable regression coverage, while validating backend logic, data integrity, and integrations. I have contributed significantly to QA documentation and processes, helping teams improve test coverage and release confidence. My workflow includes creating clear test cases, structured checklists, and detailed bug reports using tools like Jira, Trello, Asana, and Linear, ensuring issues are easy to reproduce and resolve quickly. If you need a reliable Senior QA Engineer with a strong mix of manual and automation skills, experience in SaaS, AI-powered platforms, financial systems, and mobile apps, and a product-focused mindset, I can integrate seamlessly into your team and start delivering value immediately.

Senior Flutter & FlutterFlow Developer | AI-Powered Mobile Apps I help startups and businesses build scalable mobile applications using Flutter, FlutterFlow, Firebase, and AI technologies. Over the last 9+ years, I have developed and launched applications across healthcare, e-commerce, marketplaces, GPS tracking, social networking, SaaS, transportation, and on-demand services. Whether you need a new MVP, AI-powered application, FlutterFlow project, or an existing app improved and maintained, I can help turn your requirements into a production-ready product. What I Build ✅ Flutter Apps (Android & iOS) ✅ FlutterFlow Applications ✅ AI-Powered Apps (OpenAI, Gemini, Claude) ✅ Marketplace Platforms ✅ Healthcare & Wellness Apps ✅ GPS Tracking & Fleet Management ✅ Real-Time Chat Applications ✅ SaaS Products & MVPs ✅ E-commerce Applications ✅ Subscription Apps (RevenueCat) Technical Expertise • Flutter & Dart • FlutterFlow • Firebase (Auth, Firestore, Functions, Notifications) • Supabase • REST APIs & GraphQL • OpenAI, Gemini & Claude Integration • RevenueCat • Google Maps & Location Services • Real-Time Chat & Notifications • SQLite & Offline Sync • Node.js APIs Why Clients Work With Me ⭐ 9+ Years Mobile Development Experience ⭐ 30+ Apps Published on App Store & Play Store ⭐ AI + Flutter Expertise ⭐ Clean, Scalable Architecture ⭐ Fast Communication ⭐ Long-Term Support ⭐ Proven Upwork Track Record If you’re looking for someone who can take your idea from concept to launch or improve an existing product send me a message and let’s discuss your project.

I build AI-powered web apps, mobile apps, and custom SaaS platforms for startups and businesses that need production-ready software — not just code. 10+ years full-stack, 100+ projects delivered, 50+ apps live on the App Store and Google Play. ✅ 100+ projects delivered across web, mobile, and SaaS ✅ 50+ apps live on App Store and Google Play ✅ 10+ years building full-stack and AI-powered products ✅ Clients across FinTech, healthcare, eCommerce, and real estate Most clients arrive with an idea sitting in a doc or Figma file going nowhere fast — or a half-built product a previous developer left behind. Either way, I take it from there and deliver something production-ready. — — — 📱 AI-POWERED MOBILE APPS | iOS · Android · Flutter · React Native I build cross-platform mobile apps with AI features built into the product from day one — not bolted on at the end: • Flutter and React Native apps deployed to App Store and Google Play • AI-driven features: smart recommendations, natural language interfaces, conversational chatbots, and on-device intelligence • OpenAI API and LLM integrations wired directly into your app's core functionality • Real-time data processing, push notifications, and offline-capable architecture • FinTech, healthcare, eCommerce, real estate, and on-demand app delivery — — — 🌐 AI-POWERED WEB APPS | Next.js · React · Node.js · TypeScript Scalable web applications with AI capabilities built into the architecture: • Next.js and React frontends with server-side rendering and edge performance • AI-powered dashboards, content generation, search, and workflow features • ChatGPT and OpenAI API integrations as core product functionality — not demos • Real-time features, webhooks, background jobs, and event-driven systems • B2B portals, marketplace platforms, admin dashboards, and data-rich web products — — — ⚙️ CUSTOM SAAS DEVELOPMENT | End-to-End Product Builds Full-cycle SaaS development from architecture to production — not templates, not no-code: • Multi-tenant architecture designed for scale from the first line of code • Subscription billing with Stripe — plans, trials, upgrades, and dunning flows • Role-based access control, team management, and granular permissions • Admin dashboards, usage analytics, and customer-facing reporting • SaaS MVPs taken from zero to paying customers in weeks, not months • Existing SaaS products refactored, extended, or rescued from stalled development — — — 🔧 TECH STACK Frontend: React · Next.js · TypeScript · Tailwind CSS Mobile: Flutter · React Native Backend: Node.js · Python · REST APIs · GraphQL AI/ML: OpenAI API · LangChain · LLM integrations · Retrieval-Augmented Generation Database: PostgreSQL · MongoDB · Firebase · Supabase Infrastructure: AWS · Azure · Docker · CI/CD pipelines — — — Every project includes 1 month of post-launch support — bug fixes, adjustments, and answers at no extra cost. I am immediately available and ready to start today. Send me a message and let's talk through your project.