--- title: "Subrata Kumar Das - Tech Lead — React Native | Building Remote Patient Monitoring app | BLE & HIPAA Compliance in Solan | Tal" description: "Meet Subrata Kumar Das, Mobile Solutions Architect | Building Remote Patient Monitoring Mobile Apps | React Native | Redux | App Stores | Native Integrations | OnDevice AI based in Solan. AI stack includes claude, codex, and github copilot. Explore public work links including github." image: "https://tal.club/meet/subrata-das/share-image" --- # Subrata Kumar Das on Tal ## Headline Mobile Solutions Architect \| Building Remote Patient Monitoring Mobile Apps \| React Native \| Redux \| App Stores \| Native Integrations \| OnDevice AI ## About I build mobile products that handle what most apps avoid — medical\-grade data, offline reliability, and privacy that users can actually trust\. As a React Native Tech Lead, I currently lead mobile development for a U\.S\.\-based healthcare provider, building remote patient monitoring solutions that integrate BLE medical devices, real\-time health data streaming, and on\-device AI — all within FedRAMP Moderate and HIPAA\-aligned compliance standards\. When sensitive health data is involved, architecture decisions matter\. I treat them that way\. Before that, I spent seven years as the sole technical co\-founder of an EdTech startup — designing, building, and shipping 40 Android applications across 40 cities in Odisha, India\. No team\. No playbook\. Just the problem and the work\. That experience taught me what it means to own a product completely, from first commit to real users\. Outside of client work, I build independently\. I have shipped four health apps to the App Store and Google Play — a women's health tracker, a medication adherence app, a mood journal, and a hydration tracker\. Every one of them is offline\-first, biometric\-protected, and built without mandatory accounts because I believe health data belongs to the person it belongs to\. If you are working on something that sits at the intersection of health, hardware, and software, I would like to hear about it\. 📍 Bengaluru, India · Remote only 🔗 subraatakumar\.com ## Location Solan ## AI stack claude codex github copilot ## Work experience Tech Lead — React Native \| Building Remote Patient Monitoring app \| BLE & HIPAA Compliance at Krish Services Group, Oct 2024 \- Present · 1 yr 11 mos, Bengaluru, Karnataka, India, Leading mobile development for a prestigious U\.S\.\-based healthcare provider, delivering solutions for remote patient monitoring, diagnostics, and care coordination\. \- Integrated BLE medical devices \(blood pressure monitors, bladder condition sensors\) enabling real\-time health data streaming directly into the React Native app \- Architected FedRAMP Moderate and HIPAA\-aligned encryption with hardware\-backed secure credential isolation — all sensitive health data encrypted at rest and inaccessible to unauthorised processes \- Implemented on\-device AI using a local SDK to interpret medical device readings via smartphone camera, enabling offline diagnostic accuracy without cloud dependency \- Executed full React Native migration from v0\.59 to v0\.76\.6 including New Architecture adoption \(Fabric \+ TurboModules\), resolving all compatibility issues across a legacy codebase \- Delivered JWT\-authenticated WebSocket chat module for secure real\-time clinical communication between patients and care teams \- Integrated admin middleware for appointment management, lab coordination, and doctor workflow \- Set up Sentry and performance monitoring for runtime stability tracking \- Mentored junior engineers through internal sessions on clean code, Git hygiene, and scalable mobile architecture Sr Software Engineer \(Mobile\) at Riktam Technologies, Mar 2023 \- Aug 2024 · 1 yr 6 mos, Hyderabad, Telangana, India, Contributed to a high\-traffic e\-commerce React Native app with 1M\+ users on Google Play Store for a Philippines\-based client\. \- Improved warehouse order picking accuracy via barcode scanning integration — reduced errors by 15%, increased fulfilment speed by 30% \- Built a React Native app from scratch integrating S60 PDA handheld device printer and scanner via custom native modules \- Migrated 2 Android\-native apps to React Native; upgraded Expo 48 codebase to Expo 51 resolving all dependency conflicts Sr\. Software Engineer \(React Native Developer\) at NeoSOFT, Jun 2022 \- Mar 2023 · 10 mos, Banglore, Developed and maintained enterprise mobile applications for a major Indian insurance brand, improving workforce productivity and customer engagement across field operations\. \- Built an Employee Management App for attendance tracking, leave management, and internal communication — improving HR operational efficiency across the organisation \- Contributed to an Insurance Policy Management App enabling field agents to manage policies, customer data, and premium collections on the go \- Integrated EzeTap POS devices via Razorpay native bridge for secure in\-app payment and premium collection in the field \- Implemented real\-time location tracking and face authentication using Firebase and native APIs for secure field agent verification \- Delivered Android and iOS enterprise builds via in\-house distribution with seamless OTA updates \- Collaborated with backend and QA teams to ensure compliance, performance, and data security within regulated insurance workflows React Native Developer at SkinTheory, Jun 2021 \- May 2022 · 1 yr, Berlin, Germany, Developed Skin Theory — a scientific acne and skincare tracking app for a Germany\-based healthcare startup focused on personalised dermatological insights\. Worked fully remote with a cross\-functional European team\. \- Implemented reactive state management with MobX ensuring seamless data flow and optimised UI responsiveness across the iOS app \- Built data\-driven skin analysis and tracking screens with performance\-optimised rendering and visually rich UI components \- Integrated location services and Single Sign\-On \(SSO\) for secure, contextual user experiences \- Collaborated closely with product designers and backend engineers through the full product lifecycle including release preparation and quality assurance \- Contributed to a privacy\-sensitive health app handling personal dermatological data for users across Europe Founding Tech Lead at Tankadhar Training and Research Center, Jan 2014 \- May 2021 · 7 yrs 5 mos, Bhubaneswar, Odisha, India, Co\-founded Tankadhar Training and Research Center — an EdTech startup delivering remote computer education across rural and semi\-urban Odisha, India\. Served as sole technical founder for 7 years, owning all product, development, and deployment decisions end to end\. \- Designed, built, and shipped 40 Android applications to the Google Play Store — one branded app per partner city — reaching thousands of learners in underserved communities across Odisha \- Built and managed a distributed partner network of 40 educators across 40 cities, each operating their own independently branded mobile application \- Developed the full technology stack independently: Android mobile apps, content delivery pipeline, and partner onboarding tools \- Simultaneously delivered web and software projects for local businesses and a regional software company, managing multiple client relationships in parallel \- Integrated a face recognition authentication system using open\-source face\-api models for a client project ## Education Master of Technology \- MTech, Computer Science, MANGALAYATAN UNIVERSITY \(Official\) Master's degree, Information Technology, Punjab technical university ## Public links - github: https://github\.com/subraatakumar [View the original profile](https://tal.club/meet/subrata-das) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Person", "@id": "https://tal.club/meet/subrata-das#person", "name": "Subrata Kumar Das", "url": "https://tal.club/meet/subrata-das", "image": "https://tal.club/meet/subrata-das/profile-photo.jpg", "description": "Meet Subrata Kumar Das, Mobile Solutions Architect | Building Remote Patient Monitoring Mobile Apps | React Native | Redux | App Stores | Native Integrations | OnDevice AI based in Solan. 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