Subrata Kumar Das

Co-Founder

Bengaluru, Karnataka, India12 yrs experience

AI EnabledAI ML Practitioner

Key Highlights

Led mobile development for healthcare solutions.
Co-founded an EdTech startup delivering 40 apps.
Shipped multiple health apps focused on user privacy.

Stackforce AI infers this person is a Healthcare and EdTech mobile development expert with strong compliance and privacy focus.

Contact

Skills

Core Skills

React NativeSolution ArchitectureMobile DevelopmentProduct Ownership

Other Skills

TypeScriptReduxBLEHIPAAFedRAMPAIBarcode ScanningFirebaseUnit TestingMobXData StructuresAndroid DevelopmentContent DeliveryMedical TechnologyRemote Collaboration

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

Experience

12 yrs

Total Experience

2 yrs 7 mos

Average Tenure

1 yr 7 mos

Current Experience

Krish services group

Tech Lead — React Native | Health Tech | BLE & HIPAA Compliance

Oct 2024 – Present · 1 yr 7 mos · Bengaluru · On-site

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

TypeScriptReduxReact NativeSolution Architecture

Riktam technologies

Sr Software Engineer (Mobile)

Mar 2023 – Aug 2024 · 1 yr 5 mos · Hyderabad · Remote

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

TypeScriptReact NativeMobile Development

Neosoft

Sr. Software Engineer (React Native Developer)

Jun 2022 – Mar 2023 · 9 mos · Banglore · Remote

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 NativeTypeScriptMobile Development

Skintheory

React Native Developer

Jun 2021 – May 2022 · 11 mos · Berlin, Germany · Remote

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

React NativeUnit TestingMobile Development

Tankadhar training and research center

Co-Founder and Tech Lead

Jan 2014 – May 2021 · 7 yrs 4 mos

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

React NativeData StructuresMobile DevelopmentProduct Ownership