Hire the Best Sharetribe Specialists
in India

I’m Bablu Kumar, a senior full-stack web developer with 7+ years of experience building scalable platforms, complex systems, and marketplace products that handle real users and real payments. I work with founders who need more than basic development — they need systems that are reliable, extensible, and built for real-world use. My core expertise includes React, Node.js, Ruby on Rails, Laravel, Stripe with advanced payment flows and webhooks, AWS S3, and AI integrations using ChatGPT and OpenAI APIs. I focus on clean architecture, strong coding standards, and maintainable systems so products can grow without constant rewrites or technical debt. I build MVPs that launch fast but are engineered for long-term scale. I’m also a verified Sharetribe expert, bringing deep marketplace experience when required — from payments and workflows to edge cases and platform limitations.

Sharetribe Expert | Full-Stack Developer | React, Node.js, Python/Django | E-commerce & Dynamic Web Applications | Agile Project Management I'm a results-driven full-stack developer with 4+ years of experience building exceptional web applications. My expertise lies in React, Node.js, Python/Django, and I have a proven track record of delivering scalable e-commerce platforms and engaging user experiences. I take pride in my dedication to clean code, well-architected systems, and client satisfaction. As a dedicated marketplace specialist, I leverage the Sharetribe platform to craft bespoke web and mobile applications for entrepreneurs and businesses. My proven expertise and track record in delivering high-quality marketplace solutions have earned me recognition as a Sharetribe Vetted Expert - validating my deep understanding of marketplace architecture and commitment to excellence. Whether you need a polished frontend, robust backend, or full project management, I'm ready to collaborate and bring your vision to life. Let's discuss your project and how I can streamline your development process with my skills and dedication. Core Skills Frontend: React, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS (or other preferred CSS framework) Backend Node.js, Express.js, Python, Django, REST API development Databases: PostgreSQL, MySQL, MongoDB Project Management: Agile methodologies, Scrum Tools: Git, GitHub Areas of Expertise E-commerce Development: Integration with payment gateways (Stripe, PayPal, etc.), shopping cart functionality, order management. Dynamic Web Applications: User authentication, data-driven interfaces, real-time features. Responsive Design: Ensuring optimal user experiences across all devices. UI/UX Design Why Work with Me Client-focused: I prioritize clear communication and understanding of your project goals. Collaborative Mindset: I thrive in team environments and contribute effectively as both a lead or team member. Proactive and Adaptable: I stay up-to-date with the latest technologies and trends. Let's Connect I'm eager to discuss how my full-stack development skills can accelerate your project's success. Contact me for a consultation and let's explore how we can achieve amazing results together!

🚀 5 Lakh+ users served. 15+ products shipped. 5+ years building at scale. Struggling to find a developer who can own the full product — frontend, backend, mobile, and AI — without splitting it across 3 hires? That's exactly what I do. I'm a Full Stack Developer specializing in Next.js, React Native, Node.js, NestJS, and Sharetribe. I've shipped government EdTech apps used by 5 Lakh+ people, a multi-board school SaaS ERP, an enterprise fleet platform, a Gemini-powered AI reporting engine, and my own SaaS product — all in production, all live. I don't build demos. I build software that runs. —————————————————— 🏗️ WHAT I BUILD —————————————————— SaaS Platforms and MVPs Multi-tenant architecture, role-based access, subscription billing, real-time dashboards, and AI-powered features — built to scale without rewrites. Marketplace Platforms (Sharetribe) Custom marketplace development on Sharetribe Flex and Sharetribe Go with Stripe Connect, custom transaction flows, listing and booking workflows, vendor dashboards, reverse marketplaces, and full UI customization using React and Next.js. I build on top of Sharetribe's API-first architecture to deliver platforms that go well beyond the defaults. React Native Mobile Apps Cross-platform iOS and Android apps with offline Redux caching, CodePush OTA updates, Firebase real-time sync, push notifications, and Sentry production monitoring. AI Integration and LLM-Powered Features Gemini and OpenAI integrations that work in production — natural language to live data reports, multi-step intent/plan/execute pipelines, hallucination prevention via structured context, streaming responses, and AI meeting summaries inside SaaS tools. NestJS Backend APIs Scalable, well-structured backend services built with NestJS — including an e-commerce platform, a health management system, and a football academy management platform. Clean modular architecture, REST APIs, PostgreSQL, Prisma, and JWT authentication. —————————————————— 📦 SHIPPED AND LIVE —————————————————— Government EdTech App Suite 3 live Play Store apps (Mentor, Teacher, Parent) for a state government literacy program. Real-time school visit tracking and student literacy assessments. Built with React Native, NativeWind, CodePush, and Sentry. 👉 5 Lakh+ active users. School ERP SaaS Multi-board SaaS platform covering student management, AI reporting, finance, HR, attendance, and curriculum. Includes a Gemini-powered natural language engine — ask in plain English, get live charts and reports instantly. No SQL knowledge needed. EdTech Learning App Free mobile app for rural students with courses, flashcards, gamified quizzes, contests, and an AI-powered YouTube learning tool. Built with Expo React Native, Firebase, and Node.js. 👉 1 Lakh+ downloads. Enterprise Fleet TMS Dispatcher platform with live route optimization via HERE Maps, real-time driver tracking, and PayPal and Samsara integrations. Led a 12-member engineering team end-to-end. OneSchool — Student and Teacher App NCERT chapter learning with gamification (stars, leaderboards, trophies), offline Redux caching, Matomo analytics, and remedial tests. 👉 20K+ active teachers. devTFlow (Own Product) Execution intelligence platform with embedded QA, reopen intelligence, Git integration (GitHub, GitLab, Bitbucket), role-based governance (Admin, PM, Dev, Tester), and AI meeting summaries. Built on Next.js, Node.js, PostgreSQL, and Prisma. —————————————————— 🛠️ CORE STACK —————————————————— Frontend — React, Next.js 14/15, TypeScript, Tailwind CSS, shadcn/ui, Redux Toolkit, React Query Mobile — React Native, Expo, NativeWind, CodePush, Firebase, Sentry Backend — Node.js, NestJS, Express, REST APIs, PostgreSQL, Prisma, Supabase, Directus Marketplace — Sharetribe Flex, Sharetribe Go, Stripe Connect, custom API integrations AI — Gemini, OpenAI, LLM pipelines, RAG, streaming responses, structured context management DevOps — Vercel, CI/CD, GitHub, Matomo, Sentry —————————————————— ✅ WORK WITH ME IF YOU NEED —————————————————— A Full Stack Developer who owns frontend, backend, and mobile without splitting work across multiple hires A Sharetribe Developer to build, customize, migrate, or extend your marketplace platform A NestJS Developer for clean, scalable, modular backend APIs and services A React Native Developer for iOS and Android apps built to scale to hundreds of thousands of users A Next.js Developer for fast, SEO-ready, production-grade web applications An AI Integration Specialist for LLM-powered features inside SaaS, EdTech, or marketplace products A developer who thinks like a product owner — not just an executor —————————————————— MCA · CGPA 9.3 / 10 · Lovely Professional University 15+ projects shipped · 5 Lakh+ users served Open to fixed-price and hourly projects. 📩 Message me with your project — I respond within a few hours.

Top Rated Plus | 100% Job Success | Ruby on Rails Expert | Sharetribe | Shopify | DevOps I'm a Top Rated Plus Ruby on Rails Full Stack Developer specializing in Sharetribe marketplace development, Shopify custom apps & themes, and scalable SaaS platforms. With 100% Job Success and $40K+ in delivered projects, I help businesses build, launch, and scale production-grade web applications. Whether you need a Sharetribe marketplace customized, a Shopify store built from scratch, an MVP launched fast, or a complex Rails application maintained and scaled — I deliver clean, production-ready code with reliable deployments. 🔧 What I Build: • Sharetribe Flex & Go — Custom marketplace development, transaction flows, payment integrations, and platform customizations • Shopify — Custom Liquid themes, private/public apps, GraphQL & REST API integrations, headless commerce • Ruby on Rails Applications — SaaS platforms, APIs, admin dashboards, multi-tenant systems, e-commerce • React.js & Vue.js Frontends — SPAs, interactive dashboards, Hotwire/Turbo integration • Flutter Mobile Apps — Cross-platform iOS & Android applications • DevOps & Cloud — Docker, CI/CD pipelines, AWS, Oracle Cloud, zero-downtime deployments ⚙️ Core Technical Skills: • Ruby on Rails 5–7 (Expert) — ActiveRecord, Sidekiq, Redis, ActionCable, Hotwire • PostgreSQL — Query optimization, database design, performance tuning • React.js, Vue.js, JavaScript/TypeScript • Shopify Liquid, Shopify APIs (GraphQL & REST), Shopify App Development • Sharetribe Flex SDK, Sharetribe Go Customization • REST & GraphQL API Development • Stripe, PayPal, and payment gateway integrations • Docker, AWS (EC2, S3, RDS), Heroku, CI/CD, Nginx, Puma • Decidim open-source platform customization • Git, RSpec/Minitest, TDD 🏗️ Specialized Experience: • Sharetribe two-sided marketplace development & customization • Shopify custom theme and app development • SaaS & multi-tenant application architecture • Legacy Rails upgrade (Rails 4/5 → Rails 7) • API integrations and third-party service automation • Performance optimization — slow query fixes, caching, background jobs • Full DevOps — server setup, deployment automation, monitoring ✅ Why Clients Choose Me: • Top Rated Plus — Top 3% on Upwork • 100% Job Success Score — Every client satisfied • $40K+ delivered on Upwork with excellent reviews • Full-stack ownership — I handle frontend, backend, database, and deployment. No coordination overhead • Fast turnaround — Available 30+ hrs/week, 0-4 hour response time • Clean, maintainable code — Tested, documented, built for production from day one 💬 Ready to start? If you need a Sharetribe marketplace customized, a Shopify store built, an MVP launched, or a Rails application fixed and scaled — invite me to your project or message me directly. Free consultation for all new clients.

✔︎ Hi, I'm a Full-Stack Developer with 7+ years of experience in 🔸 Ruby on Rails, 🔸 Front-End Development, 🔸 Sharetribe, and 🔸 DevOps. Hi, I’m a Full-Stack Developer with 5+ years of experience building scalable web apps, SaaS platforms, and marketplaces. I now help businesses integrate AI into their products to automate workflows, enhance user experience, and unlock new revenue streams. 💡 What I Do Best 🧠 **AI-Powered Development (NEW AGE FOCUS)** ✔︎ Integrate AI into web apps (OpenAI, AI APIs, automation tools) ✔︎ Build AI-driven features: recommendations, chatbots, content generation ✔︎ AI-based workflows (analysis, personalization, smart search) ✔︎ Prompt engineering & optimization for real-world applications ✔︎ AI + SaaS product development (MVP to scale) 💎 **Ruby on Rails (Backend Expertise)** ✔︎ Scalable Rails apps (Monolith & API-first architecture) ✔︎ RESTful APIs, background jobs (Sidekiq, Delayed Job) ✔︎ Authentication (Devise, JWT), authorization (Pundit) ✔︎ Payment integrations (Stripe, PayPal, subscriptions, invoicing) ✔︎ Performance optimization, caching, and DB tuning ✔︎ TDD with RSpec & Capybara 🏪 **Marketplace Specialist (Sharetribe Expert)** ✔︎ Sharetribe Go & Flex customization ✔︎ Custom marketplace features (booking, availability, pricing logic) ✔︎ Payment gateway integrations (Stripe, Razorpay, etc.) ✔︎ Migration, scaling & advanced custom workflows 🎨 **Front-End Development** ✔︎ React.js, JavaScript (ES6+), jQuery ✔︎ HTML5, CSS3, SCSS, Bootstrap ✔︎ Pixel-perfect UI from Figma/PSD ✔︎ Responsive, fast, and accessible design ✔︎ Performance optimization (Core Web Vitals, Lighthouse) ⚙️ **DevOps & Deployment** ✔︎ AWS (EC2, S3, RDS), DigitalOcean, Heroku ✔︎ CI/CD pipelines, Docker (basic to intermediate) ✔︎ Nginx, SSL, server optimization ✔︎ Monitoring, scaling, and maintenance 🔥 Why Clients Choose Me ✔︎ AI-ready development approach (future-proof solutions) ✔︎ Strong product thinking (not just coding) ✔︎ Clean, scalable, and maintainable code ✔︎ Fast communication & reliable delivery ✔︎ Long-term support & collaboration mindset 💬 Let’s Work Together Whether you're: • Building an AI-powered SaaS 🚀 • Launching a marketplace 🏪 • Automating business workflows 🤖 • Scaling an existing Rails app ⚡ I can help you turn your idea into a powerful, production-ready product. 📩 Send me a message — happy to discuss your project!

I’m a top Sharetribe developer with extensive expertise in building and customizing marketplaces that drive results. Over the years, I’ve helped clients launch feature-rich platforms tailored to their unique business needs. I handle everything from designing the look of your marketplace to adding advanced features and making sure it runs smoothly. My focus is on creating a platform that meets your goals and gives your users a great experience. I am also experienced in technologies like Ruby on Rails, Node.js, Express, Postgres, MySQL, JavaScript, jQuery, Sharetribe, and React. I bring a wealth of experience to the table, and I'm eager to tackle any project or challenge that comes my way. Whether it's crafting seamless user interfaces, optimizing database performance, or building dynamic web applications, I'm ready to dive in and make it happen. Let's transform your ideas into digital reality! I also have extensive expertise with Bubble.io and am a highly qualified no-code/low-code developer. I have extensive expertise with Bubble.io and I am a highly qualified no code/low code developer I've worked on many kinds of projects such as eCommerce, CRM, ERP, RESTful API service, Payment platforms integration in Ruby on Rails. I'm Highly Proficient in use almost Rails' well-known gems: Devise, Cancan/Pundit, Paperclip, Sidekiq/Resque, RSpec/Minitest. My Full Technical abilities are: ✔︎ Ruby, Ruby on Rails, Node, Express, ✔︎ Open source - Spree, Solidus, Catarse, Discourse ✔︎ Sharetribe, Custom Sharetribe, Sharetribe Flex, Sharetribe Go ✔︎ React/Redux/Mobx, React Native, Vue.js. ✔︎ Javascript | CSS (with Sass, Stylus and Postcss ) | HTML (erb, Haml, Jade, Slim, JSX) ✔︎ MongoDB, PostgreSQL, MySQL ✔︎ Third-party API: Google Map API, AWS, Digitalocean API, GitHub API, Facebook, Twitter, Vk.com and so forth. ✔︎ Web-servers arrangement: Linux, Nginx, PostgreSQL, Passenger, Rails, Node.js I follow Agile methodology and I am highly familiar with scrum principles. I am familiar with version control tools like Bitbucket, Github and Gitlab. I also have good experience working with project management tools like Asana, Jira, Trello, Basecamp, Lark and Some others and widely open to adopt any new tool for betterment and transparency. I am accessible to offer Technical meeting/Test. Kindly let me know whether you're intrigued, I couldn't imagine anything better than to set up a brisk introduction visit/call at your helpful time. I am looking for long term working relationship.