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$20/hr
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$200K+ earned
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🥇 Expert-Vetted | Top Rated Plus Website Designer & Developer
🚀 10+ Years Experience | UX-Focused, High-Performance Websites
Hi, I’m Harvinderjeet, a senior web designer and full-stack developer with over a decade of experience building modern, mobile-first websites and scalable web platforms. I specialize in creating visually clean, conversion-focused websites that balance strong UX/UI design with reliable, maintainable code.
My background spans design, front-end, and back-end development, allowing me to handle projects end-to-end—from strategy and wireframes to deployment and optimization. I pay close attention to typography, layout, performance, and messaging so your website clearly communicates value and builds trust.
⭐️ Web Application Development Expertise
✅ WordPress Website Development (Custom themes, plugins, performance optimization)
✅ E-Commerce Website Development (Scalable, conversion-focused stores)
✅ WIX Website Development
✅ Squarespace Website Development
✅ Webflow Website Development
✅ Magento Website Development
✅ Magento Enterprise Solutions
✅ WooCommerce Website Development
✅ Shopify Website Development
✅ Shopify Plus Development
✅ MEAN Stack Development (MongoDB, Express, Angular, Node.js)
✅ MERN Stack Development (MongoDB, Express, React, Node.js)
✅ React JS Development
✅ Node.js Development
✅ Laravel Application Development
🔹 Platforms & CMS
WordPress, WooCommerce, Shopify, Webflow, Wix, Squarespace, Magento, HubSpot, Joomla, Kajabi
🔹 Web Design & UX
UI/UX Design, Wireframes, Prototypes, Landing Pages, Website Redesigns, Design Systems, Responsive & Mobile-First Design
🔹 Front-End & Back-End
React, Vue, Next.js, Node.js, PHP, Laravel, REST APIs, MySQL, PostgreSQL, MongoDB, Firebase
🔹 E-Commerce
WooCommerce & Shopify development, payment integrations, performance optimization, custom plugins, and secure checkout flows
🔹 SEO & Performance
On-page SEO, technical SEO, speed optimization, caching, analytics setup
I provide regular updates, transparent communication, and long-term support.
If you’re looking for a reliable expert who treats your project like a product—not just a task—I’d be happy to help.
— Harvinderjeet
🔑 Keywords:
UI Design, User Experience, Infographics design, Logo Design, Responsive Design, Graphics & UI Design, Digital, Clickable prototype, User Flow, Android UI Design, Website, Web Development, UX/UI, Application design, User interface designs, Android and iOS app design, Design Guru, A/B Testing, Web & Mobile Design, Management, Micro Interaction Design, Website Prototyping, iOS guidelines, Logo, UI/UX, Illustrator, User Experience Testing, Branding, eCommerce app design, Wireframe, Head of Design, App, User Experience Design, iPhone UI Design, Tools, Android Design, SaaS, Sketch, Visual Design, Adaptive, UX Research, Interaction Design, Android app design, Graphics, User Experience, Animations creation, Effective, UX design, Project Management, Long term, Website Redesign, iPad Design, Adobe XD, Search, Mock-up, Visual Communication, Journey Mapping, User Experience Design, Design Expert, Creative, Responsive Web Design, Design Thinking, UI, Agency, User Experience Testing, website design, pitch deck presentation design, iOS and Android guideline, Mobile Design, Productive, User Interface, Application, Usability Testing, Promotion, Redesign, Guidelines, Adobe Illustrator, Android guidelines, UI Research, Wireframing, UI/UX, Android, Design & Usability Research, eCommerce web design, Mobile UX Design, Figma, Art Director, Sketch, Mobile Design, Photoshop, Experience, Competitive Analysis, Identity, User Experience, Webflow, Designer, Design, Logo design, Adobe, Head of Design, UX Wireframe, Wireframes design, Mobile Design, Usability, Solutions, Graphics & UI Design, Responsive Web Design, Web Design, Desktop, Design Prototypes, Creative, Animation UI, Hire, UI Research, User Interface Design, Management, Journey Mapping, Experience Testing, Creative, Team Leader, Application, Graphics, UX & UI, website wireframing, Google Material Design, Mock-up, Redesign.
Associated with
𝗭𝗼𝗽𝘁𝗮𝗹® Expert-Vetted Talent🏅
$1M+
earned
$25/hr
100%
Job Success
$100K+ earned
Start of list.
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I am a Senior Mobile & Web App Developer with 10+ years of experience specializing in building high-performance, scalable applications. I have expertise in React Native, Swift, Flutter, GraphQL, Node.js, and AWS and have successfully developed and optimized numerous mobile and web applications for startups and enterprises.
🛠 Tech Stack & Expertise:
✅ Mobile App Development: React Native (Fabric & New Architecture), Flutter, Swift (iOS), Kotlin (Android)
✅ Web Development: React.js, Next.js, Angular, Redux Toolkit, Zustand, TypeScript
✅ Backend: Node.js (Express, Koa), GraphQL (Apollo), Firebase, AWS Lambda, NestJS
✅ Databases: MongoDB, PostgreSQL, MySQL, Firebase Firestore
✅ State Management: Redux, Redux Saga, Zustand, Recoil, MobX
✅ Cloud & DevOps: AWS (S3, Lambda, EC2, DynamoDB), Docker, Vercel, Digital Ocean
✅ Authentication & Security: OAuth, JWT, Single Sign-On (SSO), Firebase Auth, AWS Cognito
✅ Testing & Debugging: Jest, Cypress, React Testing Library, Detox, Reactotron
✅ Performance Optimization: Hermes Engine, React Native Reanimated, Skia, TurboModules
✅ Payment Integrations: Stripe, PayPal, Razorpay, Authorize.net
✅ Third-Party APIs: Twilio (SMS & Video), Google Maps API, OpenAI (ChatGPT & Whisper), WebRTC
🏆 What I Bring to the Table:
✔ Develop and scale features pre & post-release
✔ Fix bugs and optimize app performance for smooth UX
✔ Write clean, maintainable TypeScript code
✔ CI/CD automation & build binaries using App Center, Fastlane
✔ Perform code reviews & submit pull requests
✔ Expertise in migrating projects to React Native’s New Architecture
🚀 Why Hire Me?
📌 Proactive & Transparent: Daily status reports and instant communication
📌 Performance-Oriented: I optimize apps for speed, scalability, and efficiency
📌 Problem-Solver: I love debugging & fixing critical issues
📩 Let’s build something amazing together!
$20/hr
100%
Job Success
Available now
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Senior Mobile App Developer specializing in iOS (Objective-C/Swift/SwiftUI), React Native and Flutter with 11+ years of experience building production-grade mobile applications. I help startups and product teams to build scalable apps, integrate complex features, and ship reliable releases to the App Store and Google Play Store.
Before full-time freelancing, I spent 9 years as a full-time mobile engineer - growing from Junior iOS Developer to Senior iOS and React Native Developer at a product-focused software company.
I wasn't job-hopping. I was building.
During those years I worked on real production apps, made architectural decisions, integrated hardware devices, and solved the kind of problems that appear only after an app reaches real users.
In 2023 I moved into freelancing with one goal: bring the same engineering discipline and product mindset to companies that want more than average freelance work.
Since then:
🏅 Top Rated on Upwork
✅ 100% Job Success Score
⏱ 2k+ hours logged
🤝 Long-term client relationships
━━━━━━━━━━━━━━━━━━━━━━━
WHAT I CAN HELP YOU WITH
━━━━━━━━━━━━━━━━━━━━━━━
• iOS apps built with Swift & SwiftUI - scalable and App Store ready
• Cross-platform apps using React Native (JavaScript/TypeScript) or Flutter
• BLE & NFC integrations for IoT and hardware devices
• Real-time features such as live streaming, chat, and location tracking
• Stabilizing and refactoring poorly architected mobile apps
• App Store & Google Play deployment, including rejection fixes
━━━━━━━━━━━━━━━━━━━━━━━
TECHNICAL EXPERTISE
━━━━━━━━━━━━━━━━━━━━━━━
iOS Development (11+ Years)
• Swift, SwiftUI, UIKit, Objective-C
• CoreBluetooth (BLE), CoreNFC
• HealthKit, Apple Sign-In, OAuth
• In-App Purchases & Subscriptions
• Push Notifications (Firebase, OneSignal, Azure)
React Native (6+ Years)
• TypeScript, Redux, MobX, Redux-Toolkit
• Native module bridging (iOS & Android)
• Performance optimization & debugging
• React Native upgrade to latest stable version
Flutter (2+ Years)
• Dart, GetX, Riverpod
• Complex UI and API integrations
API Integration & Mobile Tooling
• REST & GraphQL API integration
• Firebase services (Authentication, Messaging, Firestore), Supabase
• Monitoring tools (Crashlytics, Sentry, Amplitude)
• Mobile CI/CD pipelines (GitHub, GitLab, Bitbucket)
• Agile collaboration (Jira, ClickUp, Monday)
━━━━━━━━━━━━━━━━━━━━━━━
INDUSTRIES I'VE BUILT APPS FOR
━━━━━━━━━━━━━━━━━━━━━━━
• Healthcare platforms (HIPAA-compliant systems)
• IoT & hardware device communication
• Dating & social networking platforms
• Live streaming applications
• Fitness & wellness apps
• Ride-sharing and rental systems
• Location-based apps using maps and geofencing
━━━━━━━━━━━━━━━━━━━━━━━
WHY CLIENTS WORK WITH ME LONG TERM
━━━━━━━━━━━━━━━━━━━━━━━
✔ 11+ years of professional mobile engineering experience
✔ Clean architecture (MVVM, MVC, Clean Architecture)
✔ Consistent communication and daily progress updates
✔ Focus on product stability, scalability, and performance
✔ Engineering mindset, not just task execution
━━━━━━━━━━━━━━━━━━━━━━━
I work with a limited number of clients at a time so each project receives proper engineering attention rather than rushed freelance delivery.
If you're building a mobile app, improving an existing one, or dealing with a complex codebase that needs to be stabilized or scaled, feel free to send an invite.
I’ll review your requirements and respond with an honest technical assessment within 24 hours.
Let's build something worth downloading.
$29/hr
100%
Job Success
$400K+ earned
Available now
Offers consultations
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A Techno commercial professional working as a Senior Business Development Manager. Responsibility includes collaborating with the clients to gather the business specifications, improving the scope in terms of technicality and user experience by offering suggestions on scope and latest technologies and furnishing clients with all required information about the services offered, my area of expertise, the processes being followed and all other required information related to the project to help make clients an informed decision
Open Source: PHP 5, PHP 4, CGI/Perl (Mod_perl/ ActivePerl/ ePerl), Python, Moodle
IPhone, Mobile & Handhelds: Apple iPhone development using Xcode and Objective C, Blackberry, Google Android, Microsoft Windows Mobile, J2ME platform CLDC1.1, MIDP1.0, MIDP2.0, Windows7 Phone, Android tablet, Blackberry Playbook.
Microsoft Technologies: C#, VB.NET, Visual Studio .Net 2003 / 2005/ 2008, SharePoint services 3.0, MOSS 2007, MOSS 2010, ASP, ISAPI/NSAPI, ASP.NET 1.1/ 2.0 / 3.0 / 3.5. Crystal Reports, SQL Reporting, Microsoft Azure, Silverlight, Microsoft Office Live.
Frameworks & CMS: Moodle, Magento, Joomla, Drupal, WordPress, CakePHP, Zend, Symphony, CodeIgniter, OSCommerce, DotNetNuke, ASPDOTNETSTOREFRONT, BVCommerce, CheeryPy, Django, Zope, Plone, Movable Type, CMS Made Simple, TYPO3, CREloaded,Zen Cart,Xcart, Big Commerce, Rainworkx,Sugar CRM,Vtiger.
Internet Marketing: Search Engine Optimization, Pay per Click Management, Social Media Marketing, Brand Reputation Management, Social Network Marketing, Content Copywriting, Link Popularity Development and SEO Consultancy for under development sites and portals.
Flash & FLEX: Adobe Flash CS4, Adobe Flex, Flash Action scripting (AS 3.0), Flash Gaming, Flash Media Server, Flash Remoting, Rich Internet Applications (RIA), Adobe AIR.
User Interface / Graphic Design: Adobe Photoshop, Image Ready, Flash, CorelDraw, Adobe AfterEffects, Fireworks, HTML, XHTML, Dreamweaver.
Databases:Oracle, Sybase, MS SQL Server 2000 / SQL 2005 / SQL 2008, MS Access, Postgresql, MySQL 4.x/5.x, NoSQL.
Operating Systems: Windows 2003/2008 .NET Server, Linux , Unix, Windows 95, Windows 98, Win ME/XP and Windows NT/2000.
WebServer: IIS, Apache, RedHatSecure.
Cloud Servers: Amazon EC2, Windows Azure.
Third Party APIs: Foursquare, Dimdim, Google Maps, Flickr, Slideshare, Twitter, Facebook, LinkedIN.
Miscellaneous: AJAX, XML, JavaScript,
Application development for Facebook and Twitter, PayPal integration, Google checkout and other Payment Gateway integration, Database Administration.
Associated with
LDS Engineers Private Limited
$500K+
earned
$30/hr
95%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
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Dear Startup Founder,
I understand
Startup is like jumping off the cliff and then building a parachute before you hit the ground
It is challenging and not everyone's cup of tea
I know you are worried about risking your hard-earned money on a product that you think can change the WORLD we breath in
Anxious, anguish, tossing and turning in your bed at 3 AM
And to take it one step further
You are being handicapped and throat grabbed by a zillion of directions and scepticism
OMG!
Is the new idea big enough to matter?
Can I leanly test it and quickly find out if it's viable?
What problems can I solve that my competition cannot?
What's the opportunity cost?
How can I measure success—and failure?
.....
Ugh!!!! and list goes on disrupting your neocortex and limbic cells!
BUT
“The people who are crazy enough to think they can change the world are the ones who do.” - No Surprises!
Now Look, Dear Startup Founder,
Are you also the one with a bad case of shiny object syndrome?
Falling in love with the idea of creating a new product and beginning work on developing it, but with no long-term game plan on how to follow through on that idea?
And half way through you wanna see yourself finding a problem to a solution rather than a solution to a problem?
yet another entry to FAILED STARTUPS LIST - No surprises!
A little bit of this ... and a little bit of that is never going to hit the BULLS EYE! Read it 10X and loud! FULL STOP!
But this is not about me ... it's about YOU!
You are reading this right now because, in some way or shape, or form, your baby startup isn't where you want to be
Without shadow of doubt you put in a herculean amount of effort...
Jolting, scratching, hustling and bleeding your face off to reach here
Or may be you are flying...and simply want more.
More MONEY 💰
More FREEDOM 🙌🏻
More accomplishments
More Impact
More Empowerment
More Security
More Memories
More time with your family
More business class flight with your LOVE to places that result in more sand between your toes ❤️
Whatever MORE meant to you...
I've got good news for you...
I am the PARACHUTE to your startup risks and adventure
Cause soon you will be feeling like...
"FINALLY, I saw my dream startup becoming a REALITY"
No Prayers, No Hope, No Fate, No Written Destiny
I believe in making it happen at ANY COST - I believe in knocking it out of the PARK! Straight Away!
Imagine your life being a movie, and you being the hero! Let's DO IT together.
⭐️ Starting with FREE: 1-1 consultation & FREE Visual Design of your new PRODUCT
𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝐦𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐚𝐫𝐞 𝐠𝐞𝐭𝐭𝐢𝐧𝐠:
---------
- Soul for gyms: 𝗦𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗲𝘅𝗶𝘁: 𝟮𝟬𝟬% 𝗽𝗿𝗼𝗳𝗶𝘁
- Cricflex: 𝟯𝟬𝟬𝗞+ 𝗨𝗦𝗗 𝗥𝗮𝗶𝘀𝗲𝗱, 𝗡𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗦𝘁𝗮𝗿𝘁𝘂𝗽 𝗖𝘂𝗽 𝗪𝗶𝗻𝗻𝗲𝗿
- Nattyfit: 𝗦𝗮𝘃𝗲𝗱 𝟒𝟬% 𝗼𝗳 𝘁𝗵𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗰𝗼𝘀𝘁 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐌𝐘 𝐌𝐀𝐆𝐈𝐂 𝐏𝐈𝐋𝐋 𝐒𝐓𝐑𝐀𝐓𝐄𝐆𝐘
𝗪𝗲 𝗺𝗮𝘆 𝗯𝗲 𝗮 𝗴𝗿𝗲𝗮𝘁 𝗳𝗶𝘁 𝗶𝗳 𝘆𝗼𝘂 𝗮𝗿𝗲 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴:
---------
🔑 I need to develop quality software for my business, delivered on time and within my budget
🔑 I am not able to find someone who pays deep attention to details with great communication skills
🔑 I need to know whether my business idea is going to work or not
🔑 I need someone keen to engage in a long-term business relation
𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗺𝗲, 𝘆𝗼𝘂 𝘄𝗶𝗹𝗹:
---------
🎉 STOP STRUGGLING with getting things done the way you want
🎉 INCREASE your chances of success and hit the bull’s eye with your promising idea
🎉 SAVE COSTS & TIME by following THE MAGIC PILL strategy: “BUILD, MEASURE & LEARN” Cycle
🎉 Get FREE OF COST design work
In my 7+ years of development career, every single client I have worked with has come to the conclusion that I deserve fair and square 5.0 ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ stars feedback! They can't be all wrong I guess, can they? I'm here to overdeliver and WOW my clients, I've always done that and that’s what I will always do.
𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝘂𝘀𝗲:
---------
✅ Platforms: Android and iOS
✅ Cloud services: AWS and GCP
✅ APIs: REST APIs and GraphQL
✅ Databases: MySQL, PostgreSQL, SQLite, Firebase, MongoDB
✅ Front End: HTML, CSS, Bootstrap, JavaScript, React/React Native, Redux, Vue, Swift
✅ Backend: PHP, Laravel, Node.js, TypeScript, Python/Django, Elixir, Java, Parse, Express
✅ Startup approaches: Lean Startup
𝗛𝗲𝗿𝗲 𝗮𝗿𝗲 𝘀𝗼𝗺𝗲 𝗼𝗳 𝗺𝘆 𝘀𝘁𝗮𝘁𝘀:
---------
✅ 7+ years of experience
✅ TOP 3% of Upwork – TOP RATED PLUS
✅ 100% Job Success Score
✅ ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ reviews on all projects
✅ Worked on 60+ projects
✅ Raised 30000 USD for my startup in 2018
✅ Raised 100000 USD for my company in 2021
✅ Founder Institute Certified
𝗦𝗢𝗨𝗡𝗗 𝗟𝗜𝗞𝗘 𝗔 𝗙𝗜𝗧? 𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣𝗦:
Click the green ‘Invite to Job’ button in the top right-hand corner, send me a message, and let’s organize a call!
$15/hr
100%
Job Success
$100K+ earned
Offers consultations
Start of list.
End of list.
Top Rated Mobile & Web App Developer | Android, iOS, Flutter | 10+ Years Experience
If you need a reliable developer who delivers high-quality apps on time and communicates clearly throughout the project you’re in the right place.
I help startups and businesses build scalable, user-friendly mobile and web applications that actually perform in the real world not just in development.
With 10+ years of experience, I’ve:
Completed 170+ projects on Upwork
Worked 4000+ hours with consistent 5-star feedback
Built and deployed 100+ mobile apps on App Store & Google Play
What I Can Do For You
📱 Native Mobile App Development (Android & iOS)
🔄 Cross-Platform Apps (Flutter, Ionic)
🌐 Full-Stack Web Development
🖥 Desktop Apps (ElectronJS, Flutter)
Technical Expertise
Mobile Development:
- Android: Java, Kotlin
- iOS: Swift, Objective-C, SwiftUI
Cross-Platform:
- Flutter (Dart), Ionic
Web & Backend:
Angular, React.js, Node.js
MongoDB, DynamoDB PHP, Laravel, Nextjs, Postgresql
Key Features I’ve Built
- Complex business logic applications
- Payment gateway integrations (Stripe, Razorpay, etc.)
- Push notifications & real-time systems
- GPS & location-based apps
- In-app purchases & subscriptions
- Social login & sharing
- Image & video processing apps
- Third-party API integrations
- Event management web and apps
- Sports Event, Live scoring, Live streaming
- Screens sharing, Remote screen operating
🏆 Why Clients Choose Me
✔ Top Rated on Upwork with proven results
✔ Strong communication (chat, call, regular updates)
✔ Clean, scalable, and maintainable code
✔ Reliable delivery no surprises
✔ Long-term support & collaboration
📈 Let’s Build Something Great
I’m not just here to complete a task I’m here to help you build a product that succeeds.
Send me a message and let’s discuss your idea.
- Bhavin
Associated with
BMAC Infotech
$18/hr
100%
Job Success
$100K+ earned
Available now
Offers consultations
Start of list.
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I am a full stack developer with 12+ years of experience building mobile and web apps. I have worked with startups launching their MVPs and businesses improving existing platforms handling everything from planning to deployment.
If you are looking for someone who can take your app idea and actually turn it into a working, scalable product - You are in the right place.
I work across Flutter, iOS, Android, web technologies and recently I have been helping clients with no code AI-powered solutions using Claude, Open Claw, Cursor, Replit, Lovable and many more to reduce the project cost.
🔹Over the years, I’ve built:
– On-demand apps (food delivery, booking, taxi)
– SaaS platforms and MVPs
– Real-time apps with chat & notifications
– AI-powered applications
– E-commerce and marketplace solutions
I’m comfortable handling the entire development cycle from UI/UX and frontend to backend, APIs, and deployment so you don’t have to manage multiple developers.
Additional Services that i am offering:
- 6 Months Free Maintenance once the apps goes live on apple store and Google play store
- Ownership/iP rights from the day one uploaded on the Client Github
- Regular Updates & Scrum meetings.
- Following Agile Scrum Methodology from day one
- Strictly adhering to the Apple Guidelines and Google Guidelines.
- Taking Complete responsibility of Deployment on both Apple store and Google Play store.
👉 I believe in clear communication, meeting deadlines, and building long-term relationships, not just completing one project and disappearing.
If you have an idea, or even a rough concept - I can help you plan it, build it, and launch it.
📩 Send me a message, and let’s discuss how we can bring your project to life.
Associated with
Paras Technologies
$3M+
earned
$25/hr
100%
Job Success
$400K+ earned
Available now
Offers consultations
Start of list.
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𝟏𝟎 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐩𝐫𝐨𝐯𝐞𝐧 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲, 𝟏𝟎𝟎% 𝐬𝐮𝐜𝐜𝐞𝐬𝐬 𝐫𝐚𝐭𝐞, 𝐚𝐧𝐝 𝐭𝐫𝐮𝐬𝐭𝐞𝐝 𝐛𝐲 𝟏𝟎𝟎+ 𝐔𝐒 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐰𝐡𝐨 𝐜𝐚𝐧 𝐩𝐞𝐫𝐬𝐨𝐧𝐚𝐥𝐥𝐲 𝐯𝐨𝐮𝐜𝐡 𝐟𝐨𝐫 𝐦𝐲 𝐰𝐨𝐫𝐤.
Hi this is Mubeen Raza, I help startups and teams build scalable SaaS platforms, mobile applications, and integrate AI-powered automation to streamline operations, reduce overhead, and focus on growth. I specialize in delivering production-ready web apps and mobile products powered by React, Node.js, Supabase, and GPT-4/LLMs.
Have a look at my core services.
𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐚𝐚𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐌𝐕𝐏𝐬
- Custom SaaS platforms using React, Next.js, Node.js, FastAPI, Supabase, PostgreSQL
- End-to-end MVP builds: from idea to launch-ready product in 4–6 weeks
- Features include: Multi-tenant auth, Stripe payments, user dashboards, real-time data, notifications
- Built for investor demos, early traction, and scalable growth
𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
- GPT-4 / ChatGPT copilots for internal ops, support, content, and analytics
- n8n / Make / Zapier workflows: CRM sync, lead scoring, Slack/email triggers, custom bots
- LangChain & RAG pipelines: smart document Q&A, AI knowledge bases, autonomous agents
- Integration of OpenAI, Claude, Anthropic into real business ops
𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞
I build scalable backends and cloud deployments designed for speed, reliability, and growth.
- API-first backend development with REST/GraphQL, webhooks, real-time sync, Supabase functions, and database design
- CI/CD and cloud deployment using Vercel, Railway, or Docker with GitHub Actions, monitoring, and secure production workflows
𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
- Cross-platform mobile apps using React Native for iOS and Android
- Native iOS app development using Swift and Objective-C
- Mobile apps with real-time features, API integrations, push notifications, and scalable backend connectivity
- Clean, responsive UI focused on performance, usability, and native-like experience
𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈’𝐯𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐈𝐧
• IT Service Management (ITSM) – AI copilots & workflow automation
• Human Resources (HR) – AI-driven recruitment & employee management
• Legal Tech – Contract review automation & compliance copilots
• Construction & Real Estate – Project management platforms & property apps
• Healthcare – Patient management & telehealth solutions powered by AI
• Social & Community Platforms – Engagement-driven mobile apps
• E-commerce & Food Delivery – Ordering, logistics, and last-mile automation
𝐓𝐡𝐞𝐫𝐞 𝐚𝐫𝐞 𝐫𝐞𝐚𝐬𝐨𝐧𝐬 𝐲𝐨𝐮 𝐥𝐨𝐯𝐞 𝐭𝐨 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐦𝐞:
• Top Rated Plus Freelancer on Upwork
• 130+ projects delivered, including AI copilots, SaaS tools & automations
• MVPs I've built have helped clients raise millions in funding
• Proven delivery in async workflows with proactive communication
• Trusted by founders, product teams & growth-stage startups
• Strong experience across web, backend, AI, and mobile app delivery
• Focused on business outcomes, clean architecture, and long-term scalability
𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬
• Enterprise Copilot - AI assistant for enterprise workflows and automation
• uCaptureIT - AI capture management platform for federal contractors
• ConvertAI - AI content engine for inbound growth workflows
• Sales Call Analysis Platform - AI sales QA and coaching system
• Landwise NWA - AI property insights and reporting platform
• Insight Copilot - AI analytics assistant for enterprise data
• ChangeCurve - AI change management platform for enterprises
• SwiftSales - AI CRM automation and lead workflow platform
• Tensai Run - RAG-based AI writing assistant platform
• Swivu - Construction project management platform for field teams
• DIY Medicine - AI health knowledge platform with multimodal support
• Estate Planning Solution - Digital estate planning and document platform
• Fishfin - Social fishing app with bookings and community
• Y Drive - Ride-hailing and fleet management mobile app
Let’s build your next AI-powered system, GPT-4 automation, mobile app, or SaaS platform.
I offer a free consultation to discuss your goals, suggest tech stack options, and map the next steps.
United Arab Emirates
$30/hr
100%
Job Success
$20K+ earned
Offers consultations
Start of list.
End of list.
𝐇𝐞𝐥𝐩𝐢𝐧𝐠 𝐟𝐨𝐮𝐧𝐝𝐞𝐫𝐬 𝐭𝐮𝐫𝐧 𝐢𝐝𝐞𝐚𝐬 𝐢𝐧𝐭𝐨 𝐟𝐮𝐧𝐝𝐢𝐧𝐠-𝐫𝐞𝐚𝐝𝐲 𝐌𝐕𝐏𝐬 𝐰𝐢𝐭𝐡 𝐬𝐦𝐨𝐨𝐭𝐡 𝐔𝐗, 𝐫𝐨𝐛𝐮𝐬𝐭 𝐜𝐨𝐝𝐞, 𝐚𝐧𝐝 𝐳𝐞𝐫𝐨 𝐦𝐢𝐬𝐬𝐞𝐝 𝐝𝐞𝐚𝐝𝐥𝐢𝐧𝐞𝐬. $500K+ VC Raised
🚀 Key Achievements
• 25+ apps delivered, 2M+ downloads, $2B+ transactions
• Startup apps securing $500K+ funding
• Enterprise apps serving millions globally
• Zero failed projects, 100% on-time delivery
🛠️ Expertise
Swift, SwiftUI, Objective-C, Flutter, Dart, React Native, Firebase, REST/GraphQL, BLE, GPS, Push, Stripe/PayPal/Apple Pay, Social APIs
🌍 Global Experience
USA, UK, UAE (Dubai Now & Dubai Mall apps), Pakistan
🎯 Why Choose Me
Proven track record, full-stack expertise, agile delivery, and scalable solutions.
📱 Let’s Build Your Next App
Message me to transform your idea into a launch-ready mobile solution.
$20/hr
100%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
IoT Product Development | Embedded Linux | Edge Gateways | Firmware | Cloud | Mobile Apps
I help companies build & launch end-to-end IoT products — from sensor/firmware to cloud and dashboards.
15+ years experience | Delivered 50+ IoT/Embedded projects | $100K+ earnings on Upwork
✅ What We Build
✔ IoT Devices & Edge Gateways
- Embedded Linux (Yocto/Buildroot), bootloader, kernel & device drivers
- BLE / LoRa / ZigBee / Thread / UWB / WiFi / LTE connectivity
- Secure firmware (Secure Boot, Verified Boot, OTA/FOTA updates)
✔ Firmware & Microcontroller Development
- ESP32, STM32, Nordic (nRF), NXP, Microchip, SiLabs
- Sensor interfacing, low-power, battery optimized firmware
✔ Cloud & Dashboards
- AWS IoT, Azure IoT, Google IoT, MQTT
- Grafana dashboards, Web + Mobile apps (Flutter / MERN)
✔ Full-stack delivery (Hardware → Firmware → Cloud → App)
- PCB design + Prototyping
- Secure Device-to-Cloud communication
- REST APIs, integrations, data analytics
⭐ Some of our notable Projects in a nut shell
🔹 Life Smarter – Consumer Home Security Edge Gateway
We developed a highly customized security solution for consumer home security, enabling real-time intrusion, fire, theft, and burglary detection with automated police dispatch. The system is built on the Dusun 210-F Edge Gateway with Rockchip RK3328, integrating LoRa, Zigbee, Z-Wave, BLE, WiFi, LTE, and Hardware Security Modules (HSM) for encrypted communications. The firmware supports Secure Boot, AVB, DM-V, Rootfs encryption, and A/B firmware updates via Mender to ensure a highly secure and reliable system.
🔹 Custody Protect – IoT Smart Handcuff
We recently developed an IoT Smart Handcuff used for monitoring prisoners in custody in the USA. Custody Protect helps police and prison monitoring officers track each prisoner’s health status and detect violations of predefined conditions. Our team developed the entire end-to-end stack – backend, user apps, firmware, and PCB design. The ESP32 interfaces with multiple components like RFID, LoRaWAN, BLE, WiFi-BLE Mesh Network, and UWB to securely transmit data to the cloud.
🔹 Device Thread – OpenWRT & Intel NUC-Based Edge Server
We built an Edge Gateway solution where OpenWRT powers a captive portal for user activity logging and intelligent bandwidth management, including IP-based controls. An Intel NUC running Ubuntu functions as a robust OTA server for seamless updates and hosts a local server for secure Smart TV management and Automated Device Binding (ADB) operations. This setup ensures efficient, secure, and scalable network management for enterprise deployments.
🛡 Why clients choose me
✅ Production-grade experience
✅ Secure OTA updates, hardware security modules (ATECC608)
✅ Guaranteed delivery — clear milestones, demo every sprint
“We didn’t just get code. We got a complete product ready for deployment.” – Upwork Client
💬 Let’s discuss your project
Send your requirement, even if it's just an idea — I can help shape the your product as your expectation.
Subhajit R.
has worked
.
Associated with
Krishworks Technology and Research Labs
$100K+
earned