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Jagwinder Singh
@jag_iapp
Vetted Pro
Level 2
Expert Professional of AI Mobile App Developer and Web Development
India
English, Hindi, Punjabi
Vetted by Fiverr Pro
Jagwinder Singh was selected by the Fiverr Pro team for their expertise.
Vetted for
Mobile App Development
About me
I’ve been building SaaS, mobile and web applications for 14+ years of experience and 200+ apps delivered.
I help startups and businesses turn ideas, Figma designs, existing apps, or rough concepts into scalable products from MVP to production.
What I do:
• AI-powered apps & LLM integrations
• Flutter & React Native
• iOS & Android development
• SaaS & marketplace platforms
• Backend/API development
• App optimization & scaling
Tech Stack: Flutter, React Native, Kotlin, Swift, iOS, Android, React, Next.js, Node.js, Python, OpenAI, LLMs, chatbots & third-party APIs.
Feel free to message me.
Skills
Jagwinder Singh
$15/hour
Offline •
Average response time: 1 hour
See my services
Website to App
I will convert your website to ai ios, android app or pwa
Cross-Platform Development
I will develop a flutter app for android and ios, hybrid app
Want to work on an hourly basis?
Tell Jagwinder Singh what you need.
$15
/
hourPortfolio
Work experience
Senior Software Engineer
Iapp Technologies LLP • Full-time
Feb 2010 - Present • 16 yrs 7 mos
Expertise in designing and developing 200+ mobile apps, web applications, SaaS platforms, and custom software for startups, entrepreneurs, and businesses. I turn ideas and business requirements into scalable, production-ready products with clean architecture, high performance, responsive UI/UX, and secure integrations. My Skills & Expertise: Mobile: Flutter, React Native, Swift, Kotlin, Cross-Platform, WebView Web & SaaS: React.js, Next.js, Vue.js, Nuxt.js, Tailwind CSS, PWA Backend & APIs: Node.js, Express.js, Nest.js, PHP, Laravel, Python, REST APIs AI & Automation: OpenAI, GPT, Gemini, DeepSeek, LangChain, AI Agents, Chatbots, NLP, Computer Vision, AI Automation CMS & eCommerce: WordPress, Shopify, WooCommerce, Custom eCommerce Additional Tech Expertise: -- Startup & SaaS: MVPs, SaaS Platforms, Business Apps, Admin Dashboards, Subscriptions -- AI Products: AI Chatbots, Agents, Automation, OpenAI/Gemini/DeepSeek, RAG, Intelligent Workflows -- Mobile: Push Notifications, AdMob, In-A pp Purchases, Deep Linking, WebViewGold, App Store & Google Play -- UI/UX: Figma, Adobe XD, Wireframing, Prototyping, Responsive UI, AI-Assisted Design -- Integrations: Google Maps, Poyment & Social APIs, REST APIs, Firebase, Authentication, Cloud Services -- DevOps & Cloud: AWS, Docker, CI/CD, Firebase, Cloud Deployment, Production Optimization
92 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 92 Reviews
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Most relevant
tinaejones
United States
Ongoing collaboration
Always great to work with Jag and team! He helped revamp my website and connect my forms to HubSpot. Happy with this work.
Helpful?
nikki_rayy
United States
Jag completed a thorough audit of my app, reviewed the existing code and functionality, identified bugs and UI/UX issues and provided clear recommendations for what needs to be fixed and improved. The audit was detailed, professional and extremely helpful. I highly recommend him and his team and will continue working with them.
Helpful?
tinaejones
United States
Ongoing collaboration
Jag and team swiftly worked on updating our app, and as always, I enjoy collaborating with him in supporting the development of this app.
Seller's Response
Helpful?
monallm
United States
Ongoing collaboration
Highly recommend Jagwinder. I like how professional and responsive he is with his work and all the feedback I give him. It is easy to work with him, and I definitely see myself working with him again.
Helpful?
joelawson998
United Kingdom
Ongoing collaboration
Jag has been a great partner on this project and continues to deliver time and time again. The project continues to grow and we will continue to work with him on this and any other projects we may have where his expertise will be invaluable.
Helpful?
