Jaunpur, Uttar Pradesh · Gurugram, India
React Native developer from Jaunpur, now in Gurugram. I ship Android and iOS apps — FinTech, EdTech, ERP, vendor procurement — and write about AI, ESG, and sustainability from production work.
Topics
The work I actually do, not a parked domain. Open a topic or go to all writing.
React Native
Production React Native, Expo, App Store shipping, and mobile architecture.
AI
Practical AI in mobile products, not demo chatbots.
ESG
ESG reporting, BRSR, and the software behind sustainability disclosures.
FinTech
React Native FinTech apps, payments, privacy, and App Store shipping.
EdTech
EdTech mobile apps for learning, teachers, and students on Android and iOS.
ERP
ERP and vendor procurement mobile apps for operations, purchase, and suppliers.
Writing
Production notes on React Native, climate software, and the apps in between.
Scope 1, 2, and 3, GHG Protocol, and why carbon accounting is a data product problem. Written for engineers building climate software.
Devesh Kumar Singh
FinTech
How Devesh Kumar Singh thinks about shipping React Native mobile apps for FinTech, EdTech, ERP, and vendor procurement, not demo screens.
React Native
Devesh Kumar Singh is a React Native developer from Jaunpur, near Varanasi, now in Gurugram. This is the identity page for searches of Devesh, Kumar, Singh, Thakur, and mobile apps.
ESG
Devesh Kumar Singh on ESG and sustainability software as a data problem that sits next to ERP and vendor procurement, not a PDF export.
EdTech
Devesh Kumar Singh on EdTech mobile apps in React Native: lessons, progress, cheap Android devices, and why a learning app is not a website wrapped in WebView.
Work
Apps and systems that left the laptop and reached real users.
2025 · React Native · iOS App Store
A live FinTech iOS app for people dealing with debt. Shipped through App Store review, privacy, and payments.
Case study →
2024 · React Native · Healthcare
A medicine tracker for daily use: reminders, API-backed records, and a calm mobile workflow.
Case study →
2024 · React Native · Community
A community forum with auth, feeds, search, and the unglamorous work of making lists feel instant.
Case study →
2026 · Mobile · ESG and sustainability
Mobile and product surfaces around ESG, carbon, and sustainability intelligence at GreensTurn.
Case study →
FAQ
Short answers for search, assistants, and anyone skimming.
Devesh Kumar Singh is a React Native and mobile app developer from Jaunpur, Uttar Pradesh, with family roots around Varanasi. He now lives in Gurugram and ships Android and iOS apps. He writes about React Native, AI, backend, ESG, sustainability, FinTech, EdTech, ERP, and vendor procurement.
Yes. Devesh Kumar Singh is from Jaunpur, Uttar Pradesh, near Varanasi. He works as a React Native developer in Gurugram.
He is a Mobile Application Developer at GreensTurn, working on sustainability and ESG product surfaces while shipping React Native mobile apps.
Yes. He has shipped a live FinTech iOS app, Debt Relief India, and writes about React Native for EdTech, ERP, and vendor procurement mobile apps as well as AI in React Native.
On this site at deveshkumarsingh.com/blog, including /blog/category/react-native and /blog/category/ai.
Contact
React Native, AI in apps, or ESG surfaces — write directly.