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Sayak D.
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Sayak D.

Flutter & React Developer | AI-Powered Web & Mobile Apps

I build AI-powered web and mobile applications using Flutter, React, and modern full-stack technologies. With 93+ completed projects, 6.7K+ hours, 100% Job Success, and Top Rated Plus status, I help startups businesses, and product teams turn ideas into production-ready applications. What I can help you build: • AI-powered web & mobile apps • Flutter iOS & Android applications • React / React.js web applications • Full-stack SaaS platforms • REST & third-party API integrations • AI integrations, chatbots & intelligent features • Admin dashboards & business platforms • MVPs and scalable production applications My focus is not just writing code, it's building reliable products that are practical to launch, maintain, and scale. If you already have an idea, existing application, Figma design, API, or partially built product, I can help take it from development to production.

🇮🇳Kolkata, India$25/hr100% JSS4.47 (67)Since Jan 2021

Earnings and projects

MRR
$1.6k

Last 6 months ÷ 6

World#29,844 / 412k
🇮🇳Country#3,567 / 45.9k
Revenue, last 30 days
$2.1k

Last 6 months: $9.6k

World#20,386 / 412k
🇮🇳Country#2,531 / 45.9k
Total earnings
$452k

Billed in all: $464k

World#3,456 / 412k
🇮🇳Country#484 / 45.9k
Per project
$4.9k

$3.2k in the last 6 months

World#35,806 / 412k
🇮🇳Country#3,969 / 45.9k
Projects, last 6 months
3
33% fixed67% hourly
World#66,479 / 412k
🇮🇳Country#7,740 / 45.9k
Projects in all
93

Across 105 contracts

68% fixed32% hourly
World#30,518 / 412k
🇮🇳Country#5,431 / 45.9k

Earnings, last 30 days

$464k+$2.1k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$462k$464k$466kOct 8Oct 23Nov 7

Skill rankings: Top 7% in ExpressJS

Ranked by MRR among everyone on Upwork with the skill.

  1. #171Dart2,324 freelancers · 🇮🇳 #47Top 7%
  2. #189AWS Development1,478 freelancers · 🇮🇳 #49Top 13%
  3. #242Web Application Development2,030 freelancers · 🇮🇳 #68Top 12%
  4. #314Chatbot Development3,106 freelancers · 🇮🇳 #53Top 10%
  5. #373ExpressJS5,651 freelancers · 🇮🇳 #92Top 7%
  6. #577Android App Development6,395 freelancers · 🇮🇳 #180Top 9%
  7. #589Firebase6,978 freelancers · 🇮🇳 #144Top 8%
  8. #606Flutter7,550 freelancers · 🇮🇳 #205Top 8%