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Full Stack Developer with 6+ years building production SaaS platforms, booking systems, CRM tools, and AI-integrated applications, end-to-end, from React/Next.js frontends, Nest.js/Node.js/FastAPI backend to the AWS infrastructure they run on. Recent work: → Leading full-stack architecture at Bingo Labs — owning cloud infrastructure, AI automation workflows, and the full product delivery cycle → Built multi-tenant SaaS CRM with RBAC, Stripe billing, and AWS-hosted infrastructure serving 200+ tenants from MVP to production → Delivered booking systems, real-time dashboards, and AI-integrated apps using LangChain, LangGraph, Claude, and OpenAI APIs → Designed and shipped CI/CD pipelines, Docker/Kubernetes deployments, and GitHub Actions workflows from scratch I'm not a developer who's "familiar with AWS" — I architect and operate it professionally. 9 AWS certifications (Solutions Architect, Developer, ML Engineer, Data Engineer, CloudOps) and 2 Oracle Cloud credentials mean I provision ECS clusters, write CloudFormation, wire Lambda pipelines, and run Terraform without a separate DevOps hire. What I build for clients: → Multi-tenant SaaS platforms with RBAC, real-time dashboards, and drag-and-drop customisation (ReactJS, NextJS) → Scalable REST APIs and microservices (NestJS, Express.js, FastAPI, Django) → High-performance Next.js frontends — Core Web Vitals, SSR/ISR, code splitting → AI-integrated apps: LangChain, LangGraph, OpenAI, Claude APIs → Payment systems: Stripe Connect, Razorpay, Khalti, eSewa → React Native mobile apps (iOS & Android) → Data engineering and ML pipelines (SageMaker, TensorFlow, Keras) Core stack: TypeScript · React · Next.js · NestJS · Node.js · Python · PostgreSQL · MongoDB · Redis · AWS · Docker · Kubernetes · Terraform If you need someone who owns the whole stack — not just a single layer — send me a message. I usually reply within a few hours. — — — — — — — — — — Full stack developer for SaaS platforms, booking systems, CRM tools, and AI applications. I take full stack developer saas builds from MVP to scale, full stack developer fintech work, full stack developer ecommerce platforms, full stack developer healthcare applications, full stack developer marketplace work, and full stack developer CRM integrations. Recent AI work includes full stack developer LLM features (OpenAI, Claude, LangChain, LangGraph) and full stack developer AI prototypes. Stack coverage: full stack developer react next.js, full stack developer nestjs node.js, full stack developer python fastapi django, full stack developer aws cloud, full stack developer docker kubernetes terraform. I handle python full stack developer flask and python full stack developer django engagements. Also .net adjacent full stack developer migrations when needed. I ship as a web developer, React developer, and mobile app developer — covering web developer, React developer, and mobile app developer work from one engagement saves clients two or three hires. I take web developer retainers and React developer contracts. full stack developer, full stack web developer, full stack developer saas, full stack developer fintech, full stack developer ecommerce, full stack developer healthcare, full stack developer crm, full stack developer marketplace, full stack developer ai, full stack developer llm, full stack developer react, full stack developer next.js, full stack developer nestjs, full stack developer aws, full stack developer cloud, python full stack developer, web developer, react developer, mobile app developer

Founder of thegemstech | SaaS Architect | Full Stack Product Engineer | AI & Scalable System Specialist I help startups, founders, and businesses build scalable digital products designed for real-world growth — not just demo-level applications. Most developers can build features. Very few understand how to build systems that survive real business operations, scaling challenges, performance pressure, and future expansion. That’s where I specialize. I’m a Full Stack Developer with strong experience in: • React.js / Next.js • Node.js / Express.js • MERN Stack • PostgreSQL / MongoDB • SaaS Architecture • AI Integrations • REST APIs • Real-time Systems • Scalable Backend Infrastructure I’ve worked on production-level platforms including: • RestroCash — Restaurant & Hospitality SaaS Platform • GreenMove — Transport & Booking System • AI-powered CMS Platforms • Marketplace & Multi-tenant Systems • Real-time Dashboard Applications My approach is business-first and architecture-first. Before development starts, I focus on: • Scalability • System architecture • Database structure • Performance optimization • Long-term maintainability This helps clients avoid expensive rebuilds and technical debt later. I value clean code, strong communication, reliable execution, and long-term collaboration. If you're building a serious product and need someone who understands both technology and business systems, let’s connect. — Lokendra B. Jargha Founder, thegemstech

Need a senior developer who can own a production SaaS system, improve the backend, and handle deployment/infrastructure decisions — not just build features? I build and stabilize scalable SaaS and business applications using Node.js, Next.js, NestJS, PostgreSQL, Prisma, Supabase, Docker, AWS, and CI/CD. I’m also part of vetted global developer networks including Toptal and Turing, after completing their technical screening processes. My work covers backend architecture, database design, API development, infrastructure setup, server management, production deployments, dashboards, integrations, and long-term maintainability. What sets me apart is 11+ years of end-to-end ownership across real production systems. I have worked as a CTO, team lead, backend developer, and senior full-stack engineer, making technical decisions around architecture, database structure, security, deployment, and reliability. I don’t just complete tickets. I help turn unclear requirements into maintainable software that can go live, scale, and keep running. Here’s what I can build, improve, or stabilize for you: 🚀 SaaS MVP & product development — multi-tenant platforms, RBAC, admin dashboards, subscriptions, reporting, and production-ready foundations 🧠 Backend architecture — Node.js, NestJS, PostgreSQL, Prisma, Supabase, MongoDB, REST APIs, TRPC, and database-driven workflows 🔐 Production system ownership — authentication, authorization, security checks, environment management, backups, and maintainable system design ☁️ Infrastructure & deployment — AWS, Vercel, Docker, GitHub Actions, CI/CD, VPS/server management, Coolify, self-hosted services, and migration from managed platforms ⚡ Performance & stabilization — slow queries, broken deployments, legacy code, production bugs, security gaps, and architecture cleanup 📊 Internal tools & reporting — admin panels, dashboards, financial/business workflows, data-heavy systems, and third-party integrations Relevant experience: ✅ Led engineering at I.T. Hive Solutions as CTO, owning architecture, backend systems, deployment decisions, and product delivery ✅ Built and managed self-hosted infrastructure using Docker, Coolify, Supabase, storage services, databases, and supporting tools ✅ Built a Vercel-like multi-tenant PaaS platform for managing teams, projects, applications, and databases ✅ Developed a UK HMRC-integrated tax filing SaaS with secure user dashboards and financial record management ✅ Worked on insurance, SaaS, fleet operations, reporting, and business applications with complex backend rules ✅ Hands-on experience with production deployments, database design, CI/CD, server management, and long-term system maintenance I’m a strong fit if you have a SaaS product, an existing system that needs stabilization, a backend that needs proper structure, or a production application that needs someone who can take ownership of architecture, infrastructure, and maintainability. Send me a message with your requirements — I’ll help you clarify the scope, identify technical risks, and plan the best way to build or improve the system.

I’m an AI SaaS Developer with 10+ years of experience building intelligent, scalable SaaS platforms powered by AI. My expertise lies in FastAPI backends, LLM integrations, AI Agents, and Retrieval-Augmented Generation (RAG) systems, enabling businesses to leverage AI effectively in production-ready products. I specialize in turning complex AI concepts into practical, reliable solutions — from automated workflows and intelligent search systems to resume optimization and AI-powered decision tools. My focus is on clean architecture, performance, and scalability, ensuring your AI systems are robust and ready to grow. What I Build Best • AI-powered SaaS platforms from scratch • LLM integrations (OpenAI, custom LLMs) for automation and intelligence • RAG systems with vector databases for semantic search • AI Agents and intelligent automation pipelines • FastAPI backends optimized for performance and scalability • Modern AI-enabled full-stack applications using Nuxt.js, Vue.js, and React • Clean, scalable system architectures (Hexagonal / Clean Architecture) AI & Backend Expertise • Python, FastAPI, AI Agent Development • LLM API Integration and Custom Pipelines • Retrieval-Augmented Generation (RAG) • Semantic Search & Vector Databases • REST API Design & Microservices • PostgreSQL, MongoDB, Redis & Background Jobs Frontend & Product Expertise • Nuxt.js, Vue.js, React.js • Responsive, AI-enabled UI/UX • Dashboard and analytics interfaces for AI SaaS DevOps & Deployment • Docker & Containerization • Linux server deployment & Nginx • CI/CD pipelines & scalable architecture Why Work With Me I don’t just integrate AI — I build full AI SaaS systems with proper architecture, scalability, and real-world usability. I understand both the AI layer and the full product stack, so I deliver end-to-end solutions from concept to deployment. If you want to launch, scale, or optimize AI SaaS products, I can help you do it efficiently, reliably, and professionally.

As a skilled UX/UI & visual designer. I provide well crafted design & product based on targeted user needs & goal, to increase value of stockholder using clean & minimalism UI with better user experience. My expertise areas are : - UX/UI & Product Design - Figma + Adobe XD + Interactive Prototype + Wireframe + Visual Design + Design System - Mobile app + Graphics Design + Saas, eCommerce and dashboard design - Usability Testing Beside design, I soft skill of Product Owner & project management with good communication skills. Industries I have work on - Adult industry : Website design, content design, Adult app design - Entertainment: Events, Voting App - Travel: Portal & Booking app - Banking & Finance: Dashboard, website, digital wallet - Health: Fitness app, Doctor booking & medication app, Medical representative visit app Do you need help for UI/UX and product design? Feel free to send me a message. Thanks for viewing my profile!