SD Sandipan Das
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Mobile product engineering

Mobile applications designed for real users and real workflows.

I develop cross-platform applications that connect clean interfaces with reliable backend services, authentication and the operational features a production app needs.

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01 / What you receive

One maintainable product for Android and iOS

Secure API and account architecture

A responsive experience designed for everyday use

02 / Capabilities

What I can build.

  • React Native applications
  • Authentication and user profiles
  • Push notifications
  • Maps and location workflows
  • Payments and subscriptions
  • Admin dashboards and APIs

03 / Delivery

A practical path from requirement to release.

Each stage creates something concrete to review, keeping the technical work aligned with the business goal.

01

Define the core user journey

In focus
02

Prototype the interface and data model

Step 2
03

Build the app and backend integrations

Step 3
04

Test devices, edge cases and release readiness

Step 4

04 / Relevant toolkit

React NativeReactNode.jsExpressMongoDBPostgreSQLFirebase

05 / FAQ

Useful answers before we begin.

Can one app support both Android and iOS?

Yes. React Native enables a shared codebase while still allowing platform-specific behaviour where it matters.

Can you build the backend too?

Yes. I can build the application, REST APIs, database, authentication and supporting admin tools as one connected system.

Need this capability for your business?

Tell me what needs to work.

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