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Keval B.
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Keval B.

Senior Flutter Engineer | Fintech & Startup MVPs | 30+ Apps Shipped

Most founders come to me after a developer went quiet, a build got rejected by Apple, or an "almost done" app has been almost done for four months. I ship. Over 6 years I've built and shipped 30+ Flutter apps to production - fintech, healthcare, marketplaces, enterprise, social, and a Dubai government project. About 20 are still live in the stores today. On my Upwork numbers: 9 of those 30 apps were built here. The rest came through agency and direct contracts before I went full-time freelance. All of it is verifiable - ask and I'll send you links. I won't just build what you asked for. If a feature will slow development, create maintenance problems, or fail App Store review, I'll tell you before we build it - even when that costs me billable hours. 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦 𝗜'𝗩𝗘 𝗦𝗛𝗜𝗣𝗣𝗘𝗗 𝗘𝗡𝗗-𝗧𝗢-𝗘𝗡𝗗 - LicenceDXB : Dubai Government. Virtual ID card for liquor purchase verification. Built from scratch to production. 100K+ downloads. Passed government security review. - AstroPanditOm : Astrology platform. Video consultations, payments, content, multi-language. 200K+ downloads. - UPNDO : Portugal's leading movers community app. MVP to production. User tracking, wallet, NGO donations. - Qutone : India's largest ceramic manufacturer. 10+ internal Flutter apps with role-based access, running their live operations. 𝗪𝗛𝗔𝗧 𝗜 𝗗𝗢 - Flutter app development (iOS & Android) - MVP development - rough idea or Figma to live app in 4-8 weeks - Fintech & regulated apps: payments, KYC, subscriptions, security review - Payment gateways: Stripe, Razorpay, PayPal, In-App Purchases - Firebase: Auth, Firestore, Cloud Functions, FCM - REST API & GraphQL integration - AI integration (OpenAI, Gemini) - Real-time chat, push notifications, Google Maps, multi-language - Rescuing abandoned or broken codebases - App Store & Google Play submission - done 30+ times - Performance optimization, bug fixing, ongoing maintenance 𝗙𝗔𝗤 Q: Can you take over an abandoned codebase? A: Yes. Send the repo. I'll review it and tell you honestly whether to fix or rebuild - even if the answer costs me the job. Q: Will my app pass App Store review? A: I've been through submission 30+ times. I know what breaks at review, what crashes on real devices, and what Play Store rejects. When I say a feature is done, you can ship it. Q: Do you work with non-technical founders? A: Most of my clients are. Turning your idea into a clear spec is part of the job, not an extra. Q: Do you provide post-launch support? A: 30 days of free bug fixes after every delivery. Q: How do you price? A: Hourly for evolving work. Fixed-scope for defined MVPs, quoted after a short scoping call. A detailed SOW is signed before any fixed-price project - no surprise costs. 𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 - Clear requirements before code. I avoid rework. - I never overpromise. If something is outside my expertise, I say so. - I work IST 10am-11pm. That covers the full EU workday and the US East morning - most clients hear back from me the same day they post. - 40 hrs/week available. 𝗪𝗛𝗢 𝗜 𝗪𝗢𝗥𝗞 𝗕𝗘𝗦𝗧 𝗪𝗜𝗧𝗛 Founders and businesses who want a senior Flutter engineer who owns delivery - not someone who completes assigned tasks. Building a new MVP, scaling an existing product, or rescuing a stalled one? Send it over — even a rough idea. I'll tell you honestly whether I can ship it, what timeline is realistic, and what I'd push back on. Flutter Developer | Flutter App Development | Fintech App Development | MVP Development | Dart | Firebase | Payment Gateway Integration | Cross-Platform App Development | iOS & Android App Development | AI Mobile App Development | App Store Deployment | Figma to Flutter

🇮🇳Surat, India$20/hr100% JSS5.00 (6)Since Apr 2021

Earnings and projects

MRR
$348

Last 6 months ÷ 6

World#92,421 / 412k
🇮🇳Country#9,786 / 45.9k
Revenue, last 30 days
$0

Last 6 months: $2.1k

Total earnings
$14k

Billed in all: $14k

World#171,606 / 412k
🇮🇳Country#22,301 / 45.9k
Per project
$1.5k

$1k in the last 6 months

World#94,904 / 412k
🇮🇳Country#11,747 / 45.9k
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇮🇳Country#10,198 / 45.9k
Projects in all
9
78% fixed22% hourly
World#212,268 / 412k
🇮🇳Country#27,855 / 45.9k

Earnings, last 30 days

$13.8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$13.6k$13.8k$14.0k$14.2kOct 8Oct 23Nov 7

Skill rankings: Top 18% in RESTful API

Ranked by MRR among everyone on Upwork with the skill.

  1. #6Real-Time Strategy20 freelancers · 🇮🇳 #1Top 30%
  2. #128Startup Company670 freelancers · 🇮🇳 #10Top 19%
  3. #143Google Maps API756 freelancers · 🇮🇳 #47Top 19%
  4. #184Push Notifications851 freelancers · 🇮🇳 #60Top 22%
  5. #243In-App Purchases1,101 freelancers · 🇮🇳 #72Top 22%
  6. #290Software Architecture964 freelancers · 🇮🇳 #37Top 30%
  7. #340Hybrid App Development1,431 freelancers · 🇮🇳 #140Top 24%
  8. #479Dart2,324 freelancers · 🇮🇳 #128Top 21%