I help businesses automate their workflows, connect different systems, and build custom tools that save time and reduce manual work. I’m a full-stack developer with many years of experience working on automation, integrations, and internal business systems. Most of my work is focused on building practical solutions using APIs, Google Sheets, and AI tools. I work on projects like: automating business workflows AI-based tools (ChatGPT, OpenAI, etc.) connecting APIs between different platforms web applications and backend systems mobile apps when they are part of a larger system building Google Sheets systems with automation dashboards and reporting systems CRM and e-commerce integrations internal tools and admin panels EXPERIENCE I’ve worked with a wide range of tools and systems, including Shopify, Stripe, HubSpot, Salesforce, QuickBooks, GoHighLevel, Twilio, Meta/Facebook, Telegram, WhatsApp, Trello, Pipedrive, Mailchimp, Zoho, and many others. I also build custom integrations using React, Node.js, Python, PHP, and Google Apps Script. I prefer simple, reliable solutions that solve real business problems. In most cases, I choose custom development over no-code tools because it gives more flexibility and long-term stability. I’m open to long-term collaborations, especially around: automation and integrations AI-powered workflows system architecture and internal tools business process optimization web applications and backend systems mobile apps when they are part of a larger system

𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝🏆 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐀𝐈 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 | 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐈𝐨𝐬 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐬𝐢𝐠𝐧 | 𝐀𝐈 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐃𝐚𝐭𝐢𝐧𝐠 𝐀𝐩𝐩. Hi there! I'm Nishant, a passionate Mobile App Developer with over 9 years of experience developing intuitive mobile and web apps. As a product designer & developer for startups and solo entrepreneurs, I specialize in building mobile and web applications from the ground up, with a keen eye for essential features that drive user engagement and business success. ✅ 1900+ 𝐇𝐨𝐮𝐫𝐬 as a Mobile App Developer, React Native App Developer, and Flutter App Developer ✅ 54+ Jobs completed on upwork with 5★ Rating ✅ 10+ years industry Experience in Mobile App Development as a Flutter App Developer ✅ 150+ Mobile Apps completed on upwork & other platform With extensive experience in Flutter, Dart, Firebase, REST APIs, and backend creation using node js, I build cross-platform applications that run seamlessly on Android, iOS, Tablets, and Web using a single codebase, reducing development costs while maintaining native-like performance. I have strong experience in AI Mobile App Development, Hybrid Mobile App Development, Native App Development, and Flutter App Development for startups, enterprises, and businesses. 🌍 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐒𝐞𝐫𝐯𝐞𝐝:- • Saas App • Logistic & Fuel Delivery App • Fleet Management App • Ecommerce App & Shopping App • Online Dating App • Food Delivery App,Grocery Delivery App • Restaurant & Cafe App • Taxi App • On-Demand Home Services App • Bakery, Café & Restaurant Management Apps • Chat ,Messaging & video calling App • Social Media App • Real Estate App • Beauty Services & Salon Appointment Booking App • Event Planning & Booking Apps 🔹 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: 𝐂𝐮𝐬𝐭𝐨𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 – Flutter, Android (Java/Kotlin), iOS (Swift/Objective-C),TReact Native 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 – High-performance apps for both Android & iOS with single codebase 𝐒𝐨𝐜𝐢𝐚𝐥 𝐌𝐞𝐝𝐢𝐚 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 – Facebook, Google, Apple, Instagram, YouTube logins & APIs 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 & 𝐒𝐮𝐛𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 – PayPal, Stripe, Razorpay, Google Pay, Apple Pay, In-App Purchases, RevenueCat 𝐂𝐡𝐚𝐭, 𝐌𝐞𝐬𝐬𝐚𝐠𝐢𝐧𝐠 & 𝐂𝐚𝐥𝐥𝐢𝐧𝐠 – Real-time chat, audio/video calls, live streaming with Socket, Firebase, Twilio, Agora 𝐋𝐨𝐜𝐚𝐭𝐢𝐨𝐧-𝐁𝐚𝐬𝐞𝐝 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 – Google Maps, Places API, real-time tracking, geolocation 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 – ChatGPT, OpenAI 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐀𝐏𝐈𝐬 – Node.js, Laravel, PHP, REST/GraphQL APIs 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 Two-Factor Authentication (2FA), OAuth, Twilio, Mailgun 𝐐𝐑 & 𝐁𝐚𝐫𝐜𝐨𝐝𝐞 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬– Custom generation, scanning, payment solutions With strong expertise in Flutter, Node.js, and full-stack development, I focus on delivering reliable, high-quality, and scalable solutions. I have hands-on experience with Firebase, push notifications, in-app purchases, payment integrations, maps, and API-based applications. I also offer a free 15-20 minute consultation to refine your idea, recommend the right tech stack, and outline potential scaling costs—so you can make informed decisions with clarity. 🚀If you’re looking for a developer who understands your product, takes ownership, communicates clearly, and builds for the long term—let’s connect. Warm Regards Nishant Bhardwaj Highlighted Skills :- Flutter Developer | Flutter Expert | Mobile App Developer | iOS Developer | Android Developer | Cross-Platform App Development | Mobile app development services in India | Affordable app developers near me | | AI App Developer | AI mobile app development services | expense tracker app | custom mobile app development | cross-platform app development | Ai Mobile App Developer | Flutter App Developer | mobile app builder | mobile app creation | create mobile app | mobile app professionals | mobile app development company | software company | app development agency | iOS and Android app development | Mobile App Development for Startups | Mobile App Development for Enterprises | Mobile App Design | Dating App Development | E-commerce Mobile App | Healthcare App Development | Fitness App Development | mvp app developer | Phone Application Programmer | mvp app development

Hi , If you are looking for a professional website your are at perfect place, your time and money is precious so you deserve a professional product , In my 7 years of website development experience i have worked on small startups to corporate websites, raising their business to a next level and creating an impressive online presence for them . Custom website specialist, psd/figma/ Adobe Xd to WordPress expert . Thanks Looking forward to an interview .

Experienced Software Architect & Developer |25+ Years | 100+ Successful Projects I build scalable SaaS platforms and intelligent web applications powered by Python, Django, and LLM integrations.Whether you need to launch a high-performance MVP or inject generative AI into your existing workflow, I handle the architecture, database design, and cloud deployment (AWS/Azure) to ensure your platform scales effortlessly. ✅ AI & Machine Learning Expertise I turn complex data into production-ready AI solutions that drive automation and business growth.Using TensorFlow, PyTorch, and scikit-learn, I build and deploy intelligent systems for NLP, computer vision, and predictive analytics. I don't just build models; I integrate them seamlessly into your existing software architecture so they deliver real-world value from day one. ✅ SaaS & Microservices Architecture I specialize in designing cloud-native SaaS platforms using microservices, REST APIs, and containerized deployments. My solutions are built for scalability, performance, and maintainability—ideal for fast-growing startups and enterprise systems. ✅ Scalable, Maintainable Systems Strong background in software architecture, OOP, and design patterns, with a focus on creating modular and extensible systems for long-term success. ✅ Innovation & Business Impact Driven by results, I focus on creating cutting-edge, business-focused solutions that solve complex challenges, optimize operations, and accelerate growth. Let’s transform your ideas into powerful, future-ready software.

💎 Top Rated Plus | 70+ Successful Projects | 8+ Years Experience Looking for a Full Stack Developer to build, scale, or modernize your travel platform, booking system, SaaS application, or AI-powered product? I help startups and growing businesses develop secure, scalable, and high-performance solutions that improve customer experiences, streamline operations, and accelerate business growth. From travel marketplaces and booking engines to AI-powered travel assistants and travel financing solutions, I develop secure, high-performance applications that support business growth and deliver exceptional user experiences. 𝗧𝗿𝗮𝘃𝗲𝗹 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗜 𝗕𝘂𝗶𝗹𝗱 ✈️ Travel Booking Platforms ✈️ Tour & Activity Marketplaces ✈️ Flight & Hotel Reservation Systems ✈️ Travel Financing & Pay-Later Platforms ✈️ Vacation Rental & Property Booking Portals ✈️ Travel CRM & Customer Management Systems ✈️ Travel Agency Management Software ✈️ AI-Powered Travel Assistants ✈️ Membership & Subscription-Based Travel Platforms ✈️ Multi-Vendor Travel Marketplaces 𝐍𝐨𝐭𝐚𝐛𝐥𝐞 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 🔹 Travel Ticket Booking Platform – Travel reservation system with flight, hotel, and tour bookings, payment integration, and booking management. 🔹 PayLater Travel – Travel financing platform enabling vacation bookings through flexible installment payments. 🔹 PaintNite – Event booking platform enhanced with booking workflows, payments, and customer engagement features. 🔹 Scout & Cellar – Subscription-based eCommerce platform with ERP integration, inventory management, and payment automation. 𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React.js | Next.js | HTML5 | CSS3 | Tailwind CSS | Material UI | TypeScript | Redux 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js | Express.js | Nest.js | RESTful APIs | Graph QL 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MongoDB | PostgreSQL | MySQL | Firebase | Redis 𝗧𝗿𝗮𝘃𝗲𝗹 & 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Stripe | PayPal | Google Maps API | Booking APIs | Travel APIs | Payment Gateways 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗖𝗹𝗼𝘂𝗱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: AWS | Docker | CI/CD Pipelines | Azure DevOps 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 & 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲: OAuth | JWT | Data Protection | HIPAA Compliance 𝗧𝗼𝗼𝗹𝘀 & 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: GitHub | GitLab | Bitbucket | Jira | Trello | Postman 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐀𝐜𝐫𝐨𝐬𝐬 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬: ✈️ Travel & Hospitality | 💰 FinTech | 🏥 Healthcare | 🛒 E-commerce | 🚚 Logistics | 📚 Education 𝐌𝐲 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰: 📌 Discovery & Planning – Understanding your goals and project requirements. 📌 Architecture & Development – Building scalable, secure, and high-performance solutions. 📌 Agile Delivery & QA – Iterative development with continuous testing and quality assurance. 📌 Weekly Progress Updates – Transparent communication and regular project updates. 📌 Deployment & Support – Smooth deployment, optimization, and ongoing maintenance. 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞? 📌 Proven experience delivering projects for clients across the USA, UK, Canada, Australia, and other global markets. 📌 End-to-End Development – From product strategy and architecture to deployment and ongoing support. 📌 Reliable Partnership – Fast communication, proactive updates, and commitment to project success. 📌 Specialized Expertise – Travel Tech, Booking Platforms, SaaS Development, AI Integrations, MERN Stack, and Cloud Architecture. 🏆 𝐖𝐇𝐀𝐓 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐒𝐀𝐘: ⭐⭐⭐⭐⭐ "Excellent developer with strong expertise in Travel Tech and booking platforms. Ashish delivered high-quality work, communicated clearly, and completed the project on time. His knowledge of payment integrations, SaaS applications, and scalable web development was invaluable. Highly recommended!" 💬 Have a project in mind? Whether you're building a travel booking platform, travel marketplace, pay-later travel solution, SaaS platform, or AI-powered application, I can help turn your vision into a scalable and successful product. 📩 Send me a message or project invitation, and let's discuss your requirements, architecture, and development roadmap. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐭𝐨 𝐟𝐢𝐧𝐝 𝐦𝐞 : NodeJS Developer | MongoDB | GraphQL | RESTful API Developer | Full Stack Developer | Web Application Development | JavaScript Expert | AWS | Next.js Developer | MERN Stack Expert | Web Development | Full-Stack Development| Front-end Development| Back-end Development| React (ReactJS, React.js)| Node.js (Node, NodeJS)| NextJS | Next.Js | jQuery | Tailwind CSS, SaaS| MongoDB| SQL |MySQL | DynamoDB | RESTful APIs | Next.js (NextJS, Next) |PHP| GitHub | CRM | REST API development | API | Full stack web developer | Web app developer | Full stack developer MERN Stack Expert | Experience MERN Stack Expert, Graph QL, RESTful API | Web Application | Experience MERN Stack Expert | |JavaScript developer | Full Stack Developer | Web Development, JavaScript, Backend developer, Backend Engineer, API development.

I am a Full Stack Developer with more than 12 years of experience building SaaS platforms, AI-powered applications, healthcare software, CRM systems, ERP solutions, enterprise web applications, MERN Stack applications, and MEAN Stack applications. As a Full Stack Developer, I specialize in React.js, Angular, Node.js, Express.js, MongoDB, Python, Django, Flask, FastAPI, Laravel, Java, Spring Boot, AWS, PostgreSQL, MySQL, Docker, Kubernetes, and modern cloud-native architectures. PROVEN TRACK RECORD ✅ Full Stack Developer with 36,000+ Upwork hours ✅ $900K+ earnings ✅ 100% Job Success Score ✅ Expert-Vetted Badge ✅ MERN Stack & MEAN Stack Development Over the years, I have worked as a Full Stack Developer building scalable SaaS platforms, healthcare applications, enterprise dashboards, marketplaces, HRMS systems, inventory management systems, CRM platforms, ERP software, and AI-powered applications. Many clients hire me as a Full Stack Developer to take products from idea to production with clean architecture, scalable code, and long-term maintainability. As a Full Stack Developer, I build modern web applications using React.js, Next.js, Angular, TypeScript, JavaScript, Tailwind CSS, and Material UI. I also specialize in MERN Stack Development and MEAN Stack Development, building scalable applications using MongoDB, Express.js, React.js or Angular, and Node.js. As a Full Stack Developer, I develop secure backend systems, REST APIs, GraphQL services, microservices, automation platforms, AI-powered applications, and cloud-native solutions using Node.js, Express.js, Python, Django, Flask, FastAPI, Laravel, and Java Spring Boot. Healthcare software development is one of my strongest areas of expertise. As a Full Stack Developer, I have built HIPAA-compliant healthcare applications, Electronic Medical Records (EMR), Electronic Health Records (EHR), Patient Portals, Telemedicine Platforms, Medical Billing Systems, Healthcare Dashboards, and AI-powered healthcare solutions using AWS HealthLake, DynamoDB, and modern cloud technologies. I also work as an AI Full Stack Developer, integrating OpenAI, Claude, Retrieval-Augmented Generation (RAG), intelligent document processing, AI chatbots, workflow automation, and custom LLM-based solutions into modern SaaS platforms and enterprise applications. Whether you need a Full Stack Developer for a SaaS platform, a MERN Stack Developer, a MEAN Stack Developer, healthcare software, CRM, ERP, AI-powered solutions, or enterprise web applications, I can help transform your idea into a secure, scalable, and production-ready product. ### Technical Skills #### 🧠 Frontend Development Full Stack Development MERN Stack Development MEAN Stack Development React.js Next.js Angular (2+ to Latest) JavaScript (ES6+) TypeScript RxJS HTML5 CSS3 SCSS Tailwind CSS Material UI (MUI) Angular Material Kendo UI Responsive Web Design State Management (NgRx, Redux, Context API) REST API Integration GraphQL Integration Forms, Routing, Authentication & Validation Jest Karma Jasmine Cypress Protractor Puppeteer #### 🤖 AI & Automation OpenAI API Claude API AI Integration Retrieval-Augmented Generation (RAG) AI Chatbots Intelligent Document Processing Workflow Automation Prompt Engineering #### ⚙️ Backend & Full Stack Development Node.js Express.js NestJS Python Django Flask FastAPI PHP Laravel Java Spring Boot REST API Development GraphQL Microservices Event-Driven Architecture WebSockets SocketIO ETL Pipelines Test-Driven Development (TDD) #### 🗄️ Databases PostgreSQL MySQL MongoDB SQL Server Firebase Firestore DynamoDB Amazon HealthLake #### ☁️ Cloud & DevOps AWS (EC2, S3, Lambda, DynamoDB) Microsoft Azure Google Cloud Platform (GCP) Docker Kubernetes CI/CD Pipelines Azure DevOps DigitalOcean #### 🤖 AI & Automation OpenAI API Claude API AI Integration Retrieval-Augmented Generation (RAG) AI Chatbots Intelligent Document Processing Workflow Automation Prompt Engineering #### 🛠️ Tools Git GitHub GitLab Bitbucket Jira Trello Asana Azure DevOps 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Full Stack Developer | Full Stack SaaS Developer | SaaS Application Development | .NET Developer | .NET Core Developer | React Developer | Node.js Developer | Full Stack Developer | Angular Developer | Full Stack Developer | Next.js Developer | NestJS Developer | Full MERN Stack Developer | Full MEAN Stack Developer | Full PERN Stack Developer | Full Stack Developer | MongoDB | Cloud Engineer | Full Stack Developer | API Developer | API Integration | API Development | Azure | AWS | Google Cloud | REST API | Microservices | DevOps | CI/CD | GraphQL | AI Specialist | Full Stack Developer | AI-Integrated Solutions | ChatGPT

✋Hello, I am a Mobile App Developer specializing in building scalable, high-performance iOS and Android applications with modern UI/UX, clean architecture, and seamless user experiences. I help startups, businesses, and enterprises transform ideas into fully functional mobile products using Flutter, React Native, Swift, Kotlin, Firebase, and cloud-based technologies. With strong experience in cross-platform and native mobile development, I develop mobile applications that are visually polished, technically reliable, and optimized for long-term scalability. My focus is not only on writing clean code, but also on creating intuitive user experiences that improve engagement, retention, and overall business growth. I specialize in: • Mobile App Development • iOS App Development • Android App Development • Flutter Development • React Native Development • UI/UX Design for Mobile Apps • SaaS and Startup MVP Development • AI-Powered Mobile Applications • Firebase & Cloud Integrations • API Development & Third-Party Integrations • Subscription & Payment Systems • Real-Time Features & Notifications I build a wide range of mobile applications including: • Booking & Appointment Apps • Marketplace Platforms • AI Chat & Productivity Apps • Healthcare & Telemedicine Apps • Education & E-Learning Platforms • Logistics & Transportation Apps • Fitness & Wellness Applications • Social Networking & Community Apps • Ecommerce Mobile Apps • On-Demand Service Platforms My technical expertise includes Flutter, Dart, Swift, Kotlin, Java, React Native, Firebase, Node.js, REST APIs, GraphQL, Google Maps API, Stripe, PayPal, RevenueCat, OpenAI API, Push Notifications, Geolocation Systems, and cloud infrastructure solutions. I have experience building mobile apps with: • Authentication systems • Subscription models • Real-time chat and notifications • Payment gateways • GPS and route tracking • AI integrations and automation • Admin dashboards • Scalable backend architecture • Analytics and performance optimization I strongly focus on performance, scalability, and user experience throughout the entire development lifecycle. Every application is developed with clean architecture, responsive design, optimized performance, and maintainable code standards to ensure future scalability and smooth deployment. My development process includes: • Product strategy and planning • Wireframing and UI/UX optimization • Agile mobile app development • API and backend integrations • QA testing and performance improvements • App Store & Google Play deployment • Ongoing maintenance and feature expansion I value clear communication, realistic timelines, and long-term collaboration. Whether you need an MVP for a startup, a scalable SaaS platform, or a feature-rich enterprise application, I can help bring your vision to life with modern mobile technologies and user-focused development. My goal is to build mobile applications that are not only technically strong, but also intuitive, scalable, and impactful for users and businesses alike. Thanks, Vikram

When you work with me, you keep full ownership of everything. As a full stack developer I own the entire stack — PostgreSQL design, Node.js and Nest.js backend, React and Next.js frontend, REST API integrations, Stripe payments, and Vercel deployment. Need a full stack developer, SaaS developer, or dashboard developer who owns the technical side end to end? Let's talk. I am a full stack developer, SaaS developer, and dashboard developer in the UK — Top Rated Plus on Upwork, top 3% globally. I build systems that run businesses — working platforms with real users, real transactions, and business impact. My recent full stack developer work includes a SaaS platform for trades businesses — a Next.js app with job management, client records, quoting, and role-based access — and a B2B admin dashboard on PostgreSQL, Node.js, and React that a team of 20 depends on every day. SaaS developer. Multi-tenant. Production-ready. As a SaaS developer I delivered a multi-tenant SaaS starter on Next.js with Stripe subscriptions, PostgreSQL via Neon, role-based access, billing portal, and team invites — fully documented, repo transferred on handover. I led a platform rebuild from legacy PHP and WordPress to a modern Next.js and Nest.js architecture — 40% lift in user engagement post-launch. I also build multilingual B2B platforms — Next.js with Sanity CMS, localised content and routing, editorial workflows non-technical teams actually use. Backend developer. Nest.js. PostgreSQL. Data pipelines. As a backend developer I build production Nest.js and Node.js APIs on PostgreSQL with TypeScript end to end. Recent backend work: a Nest.js and PostgreSQL backend for a raffle SaaS platform — JWT authentication, OAuth providers, password recovery, and a clean REST API layer for a Next.js and React frontend. I also engineered a web scraping and data aggregation engine: Nest.js cron pipelines with adapters for multiple third-party sites, anomaly detection, stale-data cleanup, and webhook alerting — thousands of records refreshed daily on Railway, Prisma, and Neon. Every endpoint authenticated, every role enforced, every query isolation-aware. Security audit. Supabase RLS. Multi-tenant isolation. As a technical consultant I run pre-launch security audits for SaaS founders — the review that must happen before real customer data goes live. My audits cover Supabase Row Level Security (RLS), multi-tenant isolation, PostgreSQL policy design, authentication flows, and exposed API keys in client code. I've audited a multi-tenant property maintenance SaaS on Supabase, and on another platform found RLS policies that lived only in discarded migrations, never applied to the database — the silent data leak an audit catches before a breach. If you're a SaaS founder on Supabase, Next.js, or PostgreSQL and aren't certain your tenant data is isolated, that's the audit I do. Dashboard developer. AI features. Data that changes decisions. As a dashboard developer with a KendoReact commercial licence I build enterprise-grade interfaces standard React developers can't replicate — advanced data grids, real-time charts, complex forms under load. My portfolio includes a marketing analytics dashboard with AI insights that cut campaign review time by 60% for a British agency, and a SaaS analytics dashboard with Chart.js and PDF export that replaced weekly manual reporting. I integrate LLM APIs (Anthropic Claude, OpenAI) into production apps — AI insights, content pipelines, and matching features, keys secured server-side. Integrations. Authentication. Infrastructure. OAuth integration and API authentication — credential flows for Google, GitHub, and custom providers using NextAuth, Nest.js, and JWT. Google Tag Manager with GA4 and Meta Pixel across complex Next.js apps, GDPR cookie consent and Consent Mode included. Transactional email on Resend and Brevo, plus Next.js blog and CMS setup with Sanity Studio. Stripe. Payments. Automation. I built a Stripe internal payment interface with role-based access on Next.js — PaymentIntent flow, full audit log, zero card data stored. I delivered Stripe subscription billing with webhooks handling upgrades, downgrades, and failed payment recovery. I wire Stripe with Make, GoHighLevel, and Google Sheets so every transaction triggers the right email, CRM tag, and notification. Technical consultant. Architecture. Audit. For non-technical founders my tech stack and architecture audit with written report shows what you have, what's broken, and what to build next — vendor selection, developer estimate review, security review, and a roadmap. As a Next.js performance specialist I improve Lighthouse and Core Web Vitals — measurable gains for users and search ranking. Next.js · React · Node.js · Nest.js · PostgreSQL · Supabase · TypeScript · JavaScript · REST API · Stripe · Kendo UI · Sanity · Prisma · Claude API · OpenAI · Make · GoHighLevel · Vercel · Railway · NextAuth · JWT · OAuth · RLS · Chart.js · GA4 · Meta Pixel

Programming Languages: Swift: The primary programming language for iOS development. Objective-C: Although less common now, proficiency in Objective-C may still be required for maintaining legacy codebases. iOS Development Tools: Xcode: The official integrated development environment (IDE) for iOS development. Interface Builder: Used for designing user interfaces visually within Xcode. Instruments: For performance analysis and debugging of iOS apps. Frameworks and APIs: UIKit: The framework for building user interfaces in iOS. Foundation: Provides essential classes and data types used throughout iOS development. Core Data: For managing the model layer of an iOS app and persisting data. Core Animation: Used for creating complex animations and visual effects. Core Location: For integrating location-based services into iOS apps. Core Bluetooth: For developing Bluetooth Low Energy (BLE) apps. Cocoa Touch: A collection of frameworks for building iOS apps. Networking and Data Persistence: URLSession: For making network requests and handling responses. Alamofire or URLSession with Codable: Libraries for simplifying network requests and JSON parsing. SQLite or Core Data: For local data storage and persistence. Version Control: Git: Proficiency in using Git for version control and collaboration with other developers. GitHub or Bitbucket: Familiarity with platforms for hosting Git repositories and managing project workflows. Testing and Debugging: XCTest: Apple's built-in testing framework for writing unit and UI tests. XCUITest: For writing UI automation tests. Debugging tools in Xcode: Including breakpoints, LLDB debugger, and runtime inspection tools. App Deployment and Distribution: App Store Connect: For submitting apps to the App Store and managing app listings. TestFlight: Apple's platform for beta testing iOS apps before release. Code signing and provisioning profiles: Understanding of the process for distributing apps to testers and users. UI/UX Design: Understanding of Human Interface Guidelines (HIG) for iOS. Auto Layout and Size Classes: For creating responsive layouts that adapt to different screen sizes. Storyboards and XIB files: Familiarity with visual tools for designing app interfaces. Cross-functional Skills: Collaboration: Ability to work effectively in cross-functional teams, including designers, product managers, and QA testers. Problem-solving: Strong analytical and problem-solving skills for debugging and troubleshooting issues. Communication: Clear communication skills for discussing technical concepts and collaborating with team members.

Mobile App Developer and AI Engineer building production-ready Flutter apps, React Native apps, scalable Node.js and FastAPI backends, and OpenAI-powered SaaS solutions for startups, founders, and growing businesses. I help teams ship fast from MVP to scale with clean architecture, secure REST APIs, and AI features that actually work in production. 📱 Mobile App Development Cross-platform and native mobile apps that feel fast, look polished, and scale cleanly: - Flutter (Dart) one codebase, iOS + Android - React Native (TypeScript) for JS-first teams - Native Android (Kotlin/Java) and iOS (Swift) - Firebase, Supabase, and custom backend integration - Push notifications, offline mode, in-app purchases, Stripe & RevenueCat - App Store and Play Store deployment, signing, and compliance App categories I specialize in: AI chat apps, fintech and wallets, e-commerce, food delivery, taxi and ride-booking, healthcare, social networking, on-demand services, and SaaS companion apps. ⚙️ Backend Development & API Engineering Production-grade backends designed for real users and real load: - Node.js, Express.js, NestJS - Laravel (PHP) - REST APIs and GraphQL - PostgreSQL, MongoDB, MySQL, Redis - JWT / OAuth authentication, role-based access control - Stripe, PayPal, and regional payment gateway integration - WebSockets for real-time chat, live tracking, and notifications - AWS, GCP, Vercel, and Railway deployment with CI/CD pipelines 🤖 AI Development & OpenAI Integration I integrate AI where it adds real business value, not as a gimmick: - OpenAI GPT-4o and Assistants API integration - Custom AI chatbots and customer support agents - RAG systems with vector databases (Pinecone, Weaviate, pgvector) - LangChain and LangGraph agent workflows - AI-powered SaaS features smart search, content generation, summarization - Workflow automation with n8n, Make, and custom Python pipelines - Voice AI integration (Whisper, ElevenLabs) - Prompt engineering and fine-tuning ✅ What You Get When You Hire Me - Clean, documented, maintainable code - Daily progress updates and clear async communication - Realistic timelines, and on-time delivery - Architecture that won't break when you 10x your users - Post-launch support and bug fixes included 📩 Send me a message with what you're building, your timeline, and your stack preference (or let me recommend one). I usually respond within a few hours and can start within 2–3 days. Keywords: Mobile App Developer, Flutter Developer, React Native Developer, iOS Developer, Android Developer, Node.js Developer, FastAPI Developer, Backend Developer, Full Stack Developer, AI Developer, OpenAI API, ChatGPT Integration, AI Chatbot, SaaS Developer, REST API, Firebase, Supabase, MongoDB, PostgreSQL, Generative AI, AI Automation