Vishnu K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

🌟I'm Vishnu, a senior front-end developer with a passion for building interactive and visually stunning web & native applications🌟 Frameworks & tools I'm proficient with: As I have worked in both corporate and early startup environments, I have had the opportunity to work with numerous frameworks, some of which are listed below. ✔️ React with Typescript (15+ projects) ✔️ React Native (3+ products) ✔️ Next JS (10+ projects) ✔️ Tailwind v3 & v2 (7+ projects) ✔️ React-Query (5+ products) ✔️ Vercel (5+ projects) ✔️ Graphql (5+ projects) ✔️ Formik (10+ projects) ✔️ Material UI (MUI) ✔️ Chakra UI ✔️ Ant Design ✔️ Flowbite ✔️ Gluestack ✔️ Highcharts ✔️ Reactflow ✔️ Sanity CMS ✔️ Redux ✔️ Mobx Payment: ✔️ Stripe card elements + POS machines + Recurring payments ✔️ SquareUp card elements + POS + In-app payments in native app ✔️ Apple Pay integration ✔️ Google Pay integration ✔️ Custom implementation using Promocodes / Vouchers / Giftcards Deployment: Vercel, Amplify, Sentry, Chromatic & others. Below are a few complex features that I worked on. 1. End-to-end cart pipeline — It includes creating a product, cart, and paying for it using multiple methods, such as POS, credit card, and gift card. 2. Dashboard - Used Highcharts (Highstocks) for building a complex dashboard with numerous tabs related to trading & backtesting. It includes multiple tabs such as strategy performance, risk management & analytics with 10+ charts under each. It also features numerous tables with over 1,000 rows, which are lazy-loaded and rendered using virtualization. 3. Live updates - Each trading strategy that gets created will be backtested for decades with different timeframes. The backtest progress is streamed via web sockets. 4. User management — This includes authentication & authorization of customers, operators & affiliates with various sign-in methods like password & OTP via email & mobile number. 5. Video recording — This feature is specially made from scratch for pre-check-in of a booking to record the existing damages. This includes creating a breakless video, a series of pictures during video recording highlighting the damages such as scratches & dents. 6. Product listing - Having highlights, sort, filter, and search. In a few cases, we may need to virtualize the list items for an efficient and fast experience. 7. AI chatbot - It includes streaming of the chat messages and integration with Langchain for configuring multiple LLM models, milestones, and so on. 𝐏𝐢𝐱𝐞𝐥-𝐩𝐞𝐫𝐟𝐞𝐜𝐭 𝐝𝐞𝐬𝐢𝐠𝐧𝐬, 𝐥𝐢𝐠𝐡𝐭𝐧𝐢𝐧𝐠-𝐟𝐚𝐬𝐭 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞. 𝐓𝐡𝐚𝐭'𝐬 𝐦𝐲 𝐏𝐫𝐨𝐦𝐢𝐬𝐞. Search me with: Frontend Developer | React Developer | React Native Developer | Next.js Developer | Next.js Expert | Tailwind CSS Expert | Stripe | SquareUp | Framer motion | AI Frontend Developer | TypeScript Developer | Vue Developer | MVP Builder | Landing Page Development | ChatGPT Developer | AI-Enhanced Frontend | Vue.js | Frontend Engineer | UI Developer | Web Developer | JavaScript Developer | Tailwind CSS | Styled Components | Redux Toolkit | Zustand | React Query | Material-UI | Figma to Code | REST API Integration | GraphQL Frontend | Mobile-First Design | Pixel Perfect UI | Component-Driven Development | Responsive Web Design | Cross-Browser Compatibility | Frontend Performance Optimization | Web App Developer | Website Development | Bug Fixing | UI Bug Fixes | Frontend Debugging | Web Design Fixes | Landing Page Development | MVP Development | Frontend Optimization | Modern Frontend Development | Product listing | App Development | iOS Development | Android Development | AI chatbot | LLM Integration | Role Based Access Control | Notifications | Dashboard Development | Payment Integration | Expo