Hemangini J.
Mobile App Developer: Flutter | Swift | Kotlin | React Native | GenAI
100% Job Success 🔸 4700+ Upwork Hours 🔸 12+ Years of Experience 🔸 High Quality Product Delivery 🔸 Long Term Partnership 🚀 I specialize in building scalable, high-performing mobile applications for startups and enterprises. In the last 12 years, I’ve helped 50+ startups go from 💡Idea → 📱Mobile Product → 💰Revenue. Many of them secured VC funding and scaled to 100k+ active users. My unique strength is blending Mobile Development ➕ AI/GenAI ➕ Product Discovery to deliver apps that are not just functional, but future-ready. Mobile App Expertise ✔️ Cross-platform apps – Flutter, React Native ✔️ Native apps – Swift (iOS), Kotlin/Java (Android) ✔️ Backend & APIs – Node.js, Python, Firebase, GraphQL, REST ✔️ AI-driven mobile apps – Chatbots, RAG, Voice Assistants, AI Agents, Generative AI ✔️ Real-time & interactive apps – Video Streaming (RTP/RTCP), Chat, Geofencing, Beacon integration Industry Solutions I’ve Delivered: EdTech / LMS Mobile Apps On-Demand Service Apps (Delivery, Home Services, Logistics) FinTech & Payment Apps (Stripe/PayPal integration, Wallets) Healthcare Apps (EHR/EMR with HIPAA compliance) Job & Service Marketplaces Social Media & Networking Apps SaaS Mobile Extensions eCommerce Apps with POS integration Key Strengths: ✔️ Flutter for sleek, scalable cross-platform apps ✔️ Swift & Kotlin for high-performance native experiences ✔️ Deep integration with AI & Generative AI for intelligent apps ✔️ Strong backend knowledge (APIs, databases, cloud) for end-to-end delivery Let’s collaborate to bring your mobile app idea to life - from concept to launch to scale.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $36k
Billed in all: $140,047$140k
$36k in the last 6 months
Across 8 contracts
Earnings, last 30 days
Skill rankings: Top 1% in Dart
Ranked by MRR among everyone on Upwork with the skill.
- #11FlutterFlow834 freelancers · 🇮🇳 #5Top 1%🇮🇳#5 of 285
- #20Bubble.io749 freelancers · 🇮🇳 #4Top 3%🇮🇳#4 of 176
- #24Dart2,324 freelancers · 🇮🇳 #4Top 1%🇮🇳#4 of 650
- #52Kotlin3,021 freelancers · 🇮🇳 #8Top 2%🇮🇳#8 of 1,034
- #75AI Consulting2,321 freelancers · 🇮🇳 #11Top 3%🇮🇳#11 of 353
- #78Swift3,634 freelancers · 🇮🇳 #14Top 2%🇮🇳#14 of 1,276
- #103Firebase6,978 freelancers · 🇮🇳 #19Top 1%🇮🇳#19 of 1,827
- #111Flutter7,550 freelancers · 🇮🇳 #35Top 1%🇮🇳#35 of 2,577