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Nikhil S.
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Nikhil S.

Full-Stack Developer | Internal Tools, Field Apps & AI Automation

I build complete digital ecosystems that connect field workers, office teams, customers and administrators through mobile apps, web portals and scalable backend systems. I do not build isolated apps that create more manual work. I build connected platforms where information flows between mobile devices, internal dashboards, customers and company management. Recent work: • A home inspection app I designed, built and launched on the Apple App Store • A field inspection platform for a US inspection services company • A payroll platform serving 300+ employees that I have maintained and extended for 5+ years Whether you need an MVP, an internal business tool or a complete field-operations platform, I plan, design, develop and launch systems built for long-term growth. 🚀 What I Build ✔ Field-Worker and Operations Platforms • Mobile tools for technicians, inspectors and on-site teams • Work orders, job assignments and scheduling • Digital checklists, forms and inspections • Photo, video, signature and document capture • GPS logs, time tracking and activity records • Offline access with automatic data synchronization • Office review and approval workflows • Instant PDF and custom report generation ✔ Inspection, Safety and Compliance Systems • Construction and property inspections • Safety audits and compliance tracking • Deficiency and corrective-action management • Equipment and facility inspections • Photo-based reporting and documentation • Management dashboards and analytics ✔ Internal Company Tools • Employee and operations management systems • Internal dashboards and admin portals • Approval workflows and role-based access • Document, task and data-management platforms • Reporting and business-performance dashboards ✔ SaaS, Marketplace and On-Demand Platforms • MVPs built for market validation and investor readiness • Subscription products and multi-tenant platforms • Service marketplaces, booking and on-demand applications • Customer, vendor and administrator portals • Payments, subscriptions and commission systems 🤖 AI Automation and Intelligent Features • AI-generated reports and summaries • Document and text extraction • Voice-to-text and automated note generation • AI chatbots and conversational interfaces • Automated data classification and intelligent search • Workflow automation using OpenAI, Gemini and Whisper 🛠 Technology Mobile: Flutter, React Native, Swift and SwiftUI, Kotlin and Jetpack Compose Web and Backend: React, Next.js, Node.js, Express, Firebase, MongoDB, PostgreSQL, AWS, Google Cloud Platform: Offline-first architecture, real-time sync, secure authentication and role permissions, push notifications, payment and subscription integrations, third-party APIs 🇺🇸 Working With US and Canadian Teams I work mainly with US and Canadian companies and keep daily overlap with US Eastern hours for standups, demos and reviews. Questions get answered the same business day, not the next morning. ⚡ Why Clients Choose Me • 100+ mobile, web and software products delivered • A full team behind me: product planning, UI/UX design, mobile, web, backend, QA, cloud deployment and store submission • Clear communication, realistic timelines and regular working demos • Architecture designed to avoid expensive rebuilds • Long-term maintenance and post-launch support Top Rated Plus | Top 3% on Upwork | $400K+ earned | 8,600+ hours | 136 jobs | 10+ years of product development 🚀 Let's Build Send me your requirements, your current process or an existing design. I will come back with a clear technical approach, a realistic estimate and the questions worth answering before you spend money.

🇮🇳Gurdaspur, India$35/hr100% JSS4.66 (108)Since Feb 2017
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Earnings and projects

MRR
$7.3k

Last 6 months ÷ 6

World#2,588 / 412k
🇮🇳Country#251 / 45.9k
Revenue, last 30 days
$9.7k

Last 6 months: $44k

World#1,550 / 412k
🇮🇳Country#123 / 45.9k
Total earnings
$452k

Billed in all: $464k

World#3,449 / 412k
🇮🇳Country#483 / 45.9k
Per project
$3.2k

$3.1k in the last 6 months

World#52,187 / 412k
🇮🇳Country#6,054 / 45.9k
Projects, last 6 months
14
64% fixed36% hourly
World#11,058 / 412k
🇮🇳Country#1,567 / 45.9k
Projects in all
140

Across 148 contracts

60% fixed40% hourly
World#17,458 / 412k
🇮🇳Country#3,208 / 45.9k

Earnings, last 30 days

$464k+$9.7k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$450k$455k$460k$465kOct 8Oct 23Nov 7

Skill rankings: #1 in 2 skills of 19

Rarest: top 0.41% in Firebase Realtime Database, of 482. Ranked by MRR among everyone on Upwork with the skill.

  1. 1PayPal Development42 freelancers · 🇮🇳 #1Top 2%
  2. 1FieldPower Field Service Management12 freelancers · 🇮🇳 #1Top 8%
  3. 2Firebase Realtime Database482 freelancers · 🇮🇳 #1Top 0.41%
  4. 2Quality Inspection323 freelancers · 🇮🇳 #1Top 0.62%
  5. #6Firebase Cloud Firestore869 freelancers · 🇮🇳 #1Top 0.69%
  6. #8Google Maps API756 freelancers · 🇮🇳 #2Top 1%
  7. #15Database Architecture864 freelancers · 🇮🇳 #2Top 2%
  8. #18SwiftUI951 freelancers · 🇮🇳 #3Top 2%