Shoaib M.

⭐ Top Rated Plus | 100% Job Success | 4.9/5 from 100+ clients 🚀 12+ years building production web applications and SaaS products 🛒 8+ years of Sharetribe and marketplace development ⚙️ 14K+ Upwork hours across 100+ projects 💳 Deep experience with Ruby on Rails, Next.js, React Native, Sharetribe, Spree, Stripe, Stripe Connect, Razorpay and third-party APIs I’m a Senior Full Stack Engineer and Co-Founder with deep experience building SaaS platforms, marketplaces, AI-powered applications and custom business software for startups and established companies. I build and scale SaaS products, two-sided marketplaces and complex web applications, from MVP to production and beyond. My strongest expertise is Ruby on Rails + Sharetribe, but I work across the complete product stack, from architecture and backend development to Next.js frontends, APIs, payments, integrations, deployment and ongoing product development. ### What I Can Help You Build **SaaS & Product Development** • SaaS applications and subscription platforms • B2B and B2C products • MVPs and rapid product development • Dashboards, customer portals and internal tools • Multi-tenant applications and user management **Marketplace Development** • Sharetribe Flex and Sharetribe Community Edition • Two-sided and multi-vendor marketplaces • Custom marketplace architecture • Buyer/seller workflows and onboarding • Commissions, payouts and marketplace payments • Stripe Connect and Razorpay integrations **Custom Web Applications** • Business platforms and workflow applications • CRM and customer management systems • Admin dashboards and internal tools • Real-time applications and webhook-driven systems • Custom APIs and third-party integrations **AI & Automation** • OpenAI and Claude integrations • AI-powered SaaS features • AI agents and assistants • LLM integrations and AI workflows • Claude Code for faster AI-assisted development and prototyping **Existing Product Development & Modernization** • Taking over existing or unfinished projects • Ruby on Rails application modernization • Legacy codebase upgrades and technical debt cleanup • New feature development and integrations • Performance optimization and scalability improvements • Debugging and fixing complex production issues ### Core Technology **Backend:** Ruby on Rails, Ruby, Node.js, REST APIs, GraphQL **Frontend:** Next.js, React, TypeScript, JavaScript, Tailwind CSS **SaaS & Marketplaces:** Sharetribe Flex, Sharetribe Community Edition, custom marketplace architecture, subscriptions, multi-tenant systems, user roles, commissions and payouts **AI:** OpenAI, Claude, Claude Code, AI agents, LLM integrations and automation **Database:** PostgreSQL, MySQL, Redis **Payments & Integrations:** Stripe, Stripe Connect, Razorpay, payment gateways, OAuth, webhooks and third-party APIs **Cloud & DevOps:** AWS, Vercel, Heroku, DigitalOcean, Git/GitHub and CI/CD ### How I Work I don't just write code and hand it over. I focus on getting the product actually shipped. That means understanding the business requirements, defining the right architecture, building the product, integrating the required services, testing, deploying and helping you get it into production. For startups, I can work as a technical product partner, helping turn an idea into a practical MVP and then evolve it into a production-ready product. For existing products, I can step into your current codebase, understand the architecture, take over unfinished development, fix issues, build new features, improve performance and help your team move faster. If you have an idea, an existing application, a stalled project or a codebase that needs modernization, I can help you figure out what should be built, what can be reused and the fastest practical path to production. Send me your requirements, existing codebase or even a rough product specification, and let's discuss the best way to move it forward.