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Shreeya S.

Noida, India

$15/hr
5.0
4 jobs

Iโ€™m a Full-Stack JavaScript Developer with 7+ ๐ฒ๐ž๐š๐ซ๐ฌ of experience building high-quality web and mobile applications using React.js, Next.js, React Native, Expo, Node.js, Firebase, Supabase, and modern AI tooling. I help startups, founders, and growing businesses turn ideas into polished digital products โ€” from MVPs to scalable production platforms. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿš€ ๐‡๐Ž๐– ๐ˆ ๐‚๐€๐ ๐‡๐„๐‹๐ ๐˜๐Ž๐” ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐–๐ž๐› ๐€๐ฉ๐ฉ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โœ“ Build responsive, modern, and high-performance applications using React.js and Next.js. ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โœ“ Cross-platform iOS and Android apps with React Native and Expo. ๐€๐ˆ ๐…๐ž๐š๐ญ๐ฎ๐ซ๐ž ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง โœ“ Integrate OpenAI, AI chatbots, AI assistants, content generation, workflow automation, and smart search experiences. ๐๐š๐œ๐ค๐ž๐ง๐ & ๐€๐๐ˆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โœ“ Build scalable APIs, authentication systems, real-time features, and server-side applications with serverless technologies. ๐…๐ข๐ซ๐ž๐›๐š๐ฌ๐ž & ๐’๐ฎ๐ฉ๐š๐›๐š๐ฌ๐ž โœ“ Authentication, Firestore, Realtime Database, Edge Functions, Storage, Push Notifications, and Serverless workflows. ๐”๐ˆ/๐”๐— ๐ˆ๐ฆ๐ฉ๐ฅ๐ž๐ฆ๐ž๐ง๐ญ๐š๐ญ๐ข๐จ๐ง โœ“ Convert Figma designs into clean, responsive, pixel-perfect interfaces. ๐ƒ๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ & ๐‚๐ˆ/๐‚๐ƒ โœ“ Production deployments with Vercel, Firebase, Expo EAS, and automated CI/CD pipelines. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐ŸŒŸ ๐—ช๐—›๐—”๐—ง ๐—œ ๐—™๐—ข๐—–๐—จ๐—ฆ ๐—ข๐—ก โ€ข Clean and maintainable code โ€ข Fast communication and reliable delivery โ€ข Scalable architecture for future growth โ€ข Performance optimization and responsive UI โ€ข Long-term product thinking, not just quick fixes โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ› ๏ธ ๐“๐Ž๐Ž๐‹๐’ & ๐“๐„๐‚๐‡๐๐Ž๐‹๐Ž๐†๐˜ ๐…๐ซ๐จ๐ง๐ญ๐ž๐ง๐ โ€ข React.js โ€ข Next.js โ€ข TypeScript โ€ข JavaScript โ€ข Tailwind CSS โ€ข Redux โ€ข Zustand ๐Œ๐จ๐›๐ข๐ฅ๐ž โ€ข React Native โ€ข Expo โ€ข iOS & Android Development โ€ข Push Notifications ๐๐š๐œ๐ค๐ž๐ง๐ โ€ข Express.js โ€ข REST APIs ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž & ๐๐š๐š๐’ โ€ข Firebase โ€ข Firestore โ€ข Supabase โ€ข MongoDB ๐€๐ˆ & ๐€๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ข๐จ๐ง โ€ข OpenAI API โ€ข AI Chat Integration โ€ข AI Content Generation โ€ข Workflow Automation ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ & ๐ƒ๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ โ€ข Vercel โ€ข Firebase Hosting โ€ข Expo EAS โ€ข CI/CD Pipelines โ€ข App Store & Play Store Publishing โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿค ๐—Ÿ๐—˜๐—งโ€™๐—ฆ ๐—•๐—จ๐—œ๐—Ÿ๐—— ๐—ฆ๐—ข๐— ๐—˜๐—ง๐—›๐—œ๐—ก๐—š ๐—š๐—ฅ๐—˜๐—”๐—ง Whether you need a modern SaaS platform, an AI-powered application, a mobile app, an MVP, or full-stack product development โ€” I can help you design, build, and launch it efficiently. ๐—ฆ๐—ฒ๐—ป๐—ฑ ๐—บ๐—ฒ ๐—ฎ ๐—บ๐—ฒ๐˜€๐˜€๐—ฎ๐—ด๐—ฒ and letโ€™s discuss your project goals.

  • React
  • React Native
  • Redux
  • CSS 3
  • HTML5
  • Redux Saga
  • JavaScript
  • Next.js
  • Android
  • iOS
  • Smartphone
  • HTML
  • CSS
Ehsanullah Q.

Harunabad, Pakistan

$20/hr
5.0
68 jobs

๐Ÿ† Top Rated | Full-Stack & AI Developer | React, Next.js, Node.js, Python I help startups and SaaS founders turn ideas into production-ready software โ€” full-stack web and mobile apps with AI built in, not bolted on. Top Rated on Upwork, I ship systems real businesses run on every day. I've delivered end-to-end products across SaaS platforms, e-commerce, healthcare, logistics, and internal business automation โ€” owning each one from architecture and design through development, deployment, and scaling. My focus is the same on every project: clean, maintainable code and systems that stay fast and reliable as they grow, not just demos that look good in a screenshot. What I build: - Modern web and mobile apps โ€” Next.js, React, and React Native on the front end - Solid back ends โ€” Node.js, Python, and well-structured REST APIs - Reliable data layers โ€” PostgreSQL, Supabase, and MongoDB - The integrations products depend on โ€” Stripe payments, Twilio comms, Google Maps, and third-party SaaS workflows AI & automation: - OpenAI- and LLM-powered features, chatbots, and AI agents - Workflow automation that handles real operational work โ€” customer support, content generation, data processing, and internal tooling that saves teams hours of manual effort Built to last: - Secure foundations โ€” authentication, role-based access control, and real-time features - Scalable database architecture, so your product is ready for real users from launch โ€” not patched together later How I work: You get clear communication and steady progress, not silence followed by a surprise. I plan the architecture before I write it, keep you updated as the build moves, and make decisions with scaling, security, and maintainability in mind from day one. The goal is software you can hand to real customers with confidence. Industries: SaaS ยท E-commerce ยท Healthcare ยท Logistics ยท Internal business automation Core stack: Next.js ยท React ยท React Native ยท Node.js ยท TypeScript ยท Python ยท PostgreSQL ยท Supabase ยท MongoDB ยท OpenAI API ยท LLM / AI Agents ยท n8n ยท Stripe ยท Twilio ยท REST API integration

  • Web Development
  • Node.js
  • Web Application
  • JavaScript
  • MongoDB
  • React
  • ExpressJS
  • CSS 3
  • HTML5
  • Bootstrap
  • Material UI
  • jQuery
  • EJS
  • NodeJS Framework
  • MongoDB Ops Manager
Narayanan S.

Chennai, India

$35/hr
4.4
21 jobs

I don't just build apps. I build businesses. In 10+ years, I've launched 50+ mobile apps that actually make money. Why founders choose me: โœ“ See working prototype in 24 hours (not weeks) โœ“ Launch on both stores in 4 weeks (not months) โœ“ One codebase = 50% less cost than native development โœ“ Expo-powered builds = faster iteration & OTA updates โœ“ Post-launch support included (I don't disappear) I handle the complex stuff: Payment processing that actually works Real-time features without lag Push notifications users don't disable (via Expo Notifications) Offline mode for poor connectivity App store optimization for visibility EAS Build & Submit for smooth deployments Available for: New apps from idea โ†’ launch Fixing your current React Native / Expo disasters Migrating bare React Native projects to Expo Adding features to boost engagement Next step: Send me your app idea. Within 24 hours, you'll have a clickable prototype to show investors/users. Not just another developer. Your technical co-founder.

  • React Native
  • React
  • JavaScript
  • TypeScript
  • Redux
  • Expo.io
  • iOS Development
  • Android App Development
  • Mobile App Development
  • Node.js
  • Next.js
  • Laravel
  • PHP
  • Android
  • iOS
  • Electron
  • Full-Stack Development
  • Claude
  • AI App Development
  • Web Application Development
Amali K.

Bandarawela, Sri Lanka

$50/hr
5.0
218 jobs

Transforming Food Ideas into Market Ready Innovations. Welcome to ProFoodFormulations! Where Food Science Meets Commercial Success. With a strong academic and industrial foundation in food science, I bring over a decade of experience in developing innovative, commercially viable food and beverage products. I hold an MPhil in Food Science and Technology and a Bachelor's in Animal Science, and Iโ€™ve worked with companies around the world formulating snacks, beverages, baked goods, dairy, meat, keto foods, premixes, children's products, functional supplements and nutraceutocles. ProFoodFormulations is the next evolution of this journey, an independent food innovation lab that brings cutting-edge science, clean label strategies, and practical manufacturing solutions under one roof. Here, your food project will be handled with the same care and expertise Iโ€™ve applied to my own award-winning and commercialized products. ProFoodFormulations doesn't hold any IP rights of the products developed for you and open to signing NDA before starting. ________________________________________ Proven 6-Step Product Development Process with free of charge first two steps I work with entrepreneurs, startups, and global brands to turn ideas into successful food products. This six step development process ensures scientific integrity, commercial scalability, and consumer appeal: Step 1: Product Brief & Vision : free of charge consultation I begin by understanding your product idea in detail: โ€ข Expected product to be developed. โ€ข What is your target market? โ€ข What is the expected shelf life of the final product? โ€ข Do you have any special ingredients you want to include OR exclude in the product? โ€ข If there are any nutritional requirements to meet per serving/portion and serving/portion size. โ€ข What are the dietary restrictions and ingredient restrictions to consider when developing the product? โ€ข An explanation of the expected sensory properties (flavors, texture, mouthfeel, odor, appearance, etc.). Step 2: Concept & Technology Brief: free of charge Based on your goals, I research the best ingredient systems and processing technologies. Youโ€™ll receive a free of charge technology brief that outlines a customised development approach, fixed price based budget breakdown, timeline. Then you can review it and ask me to make changes if required to make it perfect for aligning vision before lab work begins. Step 3: Prototype Formulation & Testing This includes theoretical formulation, perform ingredient trials, prototype development, shelf life testing, testing and sensory analysis tests to craft a formulation with excellent flavor, texture, and stability. Step 4: Complete Documentation Package Youโ€™ll receive: โ€ข Small-scale recipe that you can test at your place. โ€ข Commercial production-ready large-scale recipe. โ€ข Detailed step-by-step instructions. โ€ข Quality control parameters and SOPs. โ€ข Shelf life extension strategies. โ€ข Packaging and storage recommendations. โ€ข Complete nutritional Information table. โ€ข The scale conversion table facilitates you to scale the formulation to any batch size. Step 5: Delivery You get everything in an easy to follow format and ready to test formula including small scale recipe, measurements, step by step instructions to test the product. We are open to send physical samples through international courier under certain conditions. Step 6: Feedback & Optimization ProFoodFormulations offer a complimentary revision cycle after your internal testing, working closely with your feedback to ensure the final product aligns perfectly with your vision. Then I deliver manufacture ready formula which is scalable or pitch to investors. also available anytime to support you until your product launch is successful. Why Choose ProFoodFormulations? ProFoodFormulations is not an agency charging inflated fees. It is a science-driven, specialized, and highly personalized product formulation lab that partners with you at every step, offering affordable pricing and honest collaboration. You get: โ€ข Custom solutions backed by science โ€ข Industry-standard documentation โ€ข Commercial feasibility โ€ข Flexible prices, communication and support โ€ข Transparent pricing with no hidden costs Letโ€™s bring your food innovation to life together. ๐Ÿ‘‰ Message me now to start building your product with ProFoodFormulations.

  • Food & Beverage
  • English
  • Food Writing
  • Recipe Writing
  • Food Packaging
  • Product Design
  • Recipe Development
  • Gluten-Free Food
  • Product Formulation
  • Research & Development
  • Food Engineering
  • Food Science
  • Fast Food
  • Food
  • Food & Supplements
Bilal A.

Lahore, Pakistan

$9/hr
5.0
14 jobs

๐Ÿ‘จโ€๐Ÿ’ป Bilal Ahmed | QA Engineer | Manual & Automation Testing | 5 Years of Experience ๐Ÿ” Passionate about breaking software before your users do ๐Ÿš€ Helping businesses ship high-quality products, confidently & bug-free โœ… What I Do: Iโ€™m a dedicated Quality Assurance Engineer with over 5 years of experience in both manual and automated testing for web and mobile applications. I combine a tester's intuition with technical automation to deliver clean, scalable, and high-performing software. ๐Ÿง  Industries I've Worked In: ๐Ÿฉบ Medical and Healthcare Platforms ๐Ÿ“ฑ Mobile Applications (iOS & Android) ๐Ÿ“… Booking & Scheduling Systems ๐Ÿ‹๏ธ Gym Management Solutions ๐Ÿ“Š SaaS and Business Tools ๐Ÿ› ๏ธ Tools & Technologies I Use: โœ… Automation Testing: Cypress, Playwright, Selenium, Appium โœ… Manual Testing: UI, Functional, Regression, Smoke, Usability โœ… Bug & Test Management: JIRA, TestRail, Trello โœ… API Testing: Postman, Django REST Framework โœ… Analytics & Tracking: Mixpanel, Amplitude, Appsflyer โœ… CI/CD & DevOps Awareness: GitHub Actions, Jenkins (basic) โœ… Cloud & Email Tools: AWS, Brevo ๐Ÿ”ง What I Deliver: โœ… Clear & concise test plans, test cases, and bug reports โœ… Real-time collaboration with developers to resolve issues โœ… Full end-to-end testing of new features and critical paths โœ… Automation scripts that are scalable, reusable, and reliable โœ… Transparent communication and quality-first mindset ๐Ÿ’ฌ Why Choose Me? โœ” Balanced expertise in manual + automation โœ” Sharp eye for detail & UX โœ” Strong focus on business value and end-user experience โœ” Self-driven, fast-learner, and a collaborative team player ๐Ÿ“ฌ Letโ€™s connect and build software that users can truly trust. I'm ready to test it, break it, and make it better! ๐Ÿ’ป๐Ÿงช๐Ÿš€

  • Quality Assurance
  • Scrum
  • Software QA
  • Unit Testing
  • Selenium
  • Selenium WebDriver
  • Cypress
  • Automation
  • Manual Testing
  • User Acceptance Testing
  • Agile CRM
  • Black Box Testing
  • Functional Testing
  • Test Case Design
  • Jira
Sachindeep S.

Mohali, India

$20/hr
4.6
111 jobs

Senior Full-Stack Developer | React, Next.js, React Native | AI & SaaS Expert I help startups and founders build scalable web and mobile products that are secure, maintainable, and ready for real-world growth. With 10+ years of experience, I specialize in taking products from idea to production. I have delivered SaaS platforms, AI-powered applications, healthcare systems, fintech products, and enterprise solutions used by thousands of users worldwide. What I Bring to Your Project Full-Stack Expertise: End-to-end development from frontend (React, Next.js) to backend (Node.js, AWS) and mobile (React Native). AI Integration: Building AI agents, RAG systems, and automation workflows using OpenAI, Claude, and Base44. Scalable Architecture: Clean code, reliable delivery, and long-term technical ownership. Industry Experience: Healthcare, FinTech, Marketplaces, Delivery, Gaming, and Social Platforms. Core Tech Stack Frontend: React.js, Next.js, Vue.js, Angular, TypeScript, Tailwind CSS Mobile: React Native, Expo, iOS & Android Deployment Backend: Node.js, Express, Firebase, Supabase, PostgreSQL, MongoDB, AWS Payments & APIs: Stripe, RevenueCat, GraphQL, REST APIs, Webhooks Selected Projects TradeBulls: Trading platform supporting equities, derivatives, and commodities. Vuukle: Community platform serving millions of users globally. Store To Door: Same-day delivery platform with driver and dispatch workflows. iPass: Identity verification solution with OCR and liveness detection. Why Clients Work With Me - 10+ Years of Professional Experience - Production-Ready, Maintainable Code - Clear Communication & Reliable Delivery - Comfortable Taking Ownership of Existing Codebases - Long-Term Partnership Mindset Whether you need an MVP, AI-powered SaaS platform, or an experienced engineer to improve an existing product, I can help deliver a scalable solution that supports your business goals.

  • NativeScript
  • React Native
  • React
  • Next.js
  • Angular
  • Vue.js
  • Firebase
  • WebRTC
  • AWS Application
  • CI/CD
  • Stripe
  • Google Maps
  • AI Chatbot
  • AI Development
  • Claude 3.5 Sonnet

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