Soumya RanjanFull-stack product engineerCo-founderSmartters SoftwareiOSAndroidWebAI Solutions

Architecting products,not features.

I design, build and ship complete products — iOS and Android apps, web platforms, and the AI solutions that make them smarter. Seven are live right now.

Live for clients in
FranceUSAIndia
Featured Works

Seven systems.Built end to end.

All seven are in production right now — in the stores and on the web. Each case study is written from the codebase itself: the architecture, the hard parts, and what it took to ship.
01 / 07Live · France

A reading platform with one subscription everywhere

FioleSubscription reading platform

The hard part

Reconciling native in-app purchases with Stripe web billing into one entitlement system, so a subscriber is a subscriber on every platform.

fiole.app
Fiole — live product screen
02 / 07Live · USA

A production OS from script to callsheet

IntegraFilm-production management SaaS

The hard part

Encoding real production-industry logic — stripboards, scheduling, and tax math — accurately enough for working productions to rely on.

integraos.io
Integra — live product screen
04 / 07Live · India

Hyperlocal commerce through shoppable video

VidcoVideo-commerce marketplace

The hard part

Rendering merchant-designed overlays onto video on the server so every reel matches its preview, then dispatching each order to the nearest available rider.

Merchant appRider appShopper webAI studio
vidco.in
Vidco — live product screen
More systems

Beyond thefeatured.

An ERP that runs whole parks, a commerce engine, a healthcare marketplace, a social network — systems that run every day, each told through its architecture.
System 01Venue-operations ERP

A park-operations ERP that also runs offline

A multi-tenant ERP for amusement and water parks — tickets, NFC wristbands, cashless game cards, lockers, food counters, crowd analytics, CRM and HR — sold as SaaS and as an offline install.

Operations appLicense consoleIoT endpointsOn-prem installer
Live — cloud & on-premiseLeisure & entertainment · India
System 02Single-vendor commerce platform

A commerce engine each brand can rebrand without code

A live apparel store that became a white-label commerce product: one codebase, configured per brand — catalogue, checkout, couriers, returns, loyalty and theming.

Shopper appSSR storefrontBrand adminWhite-label studio
Live store · white-label editionFashion retail · India
System 03Healthcare marketplace

A healthcare super-app on one marketplace

Consultations, medicines, lab tests, hospital beds and emergency services in one app — with doctors, labs and pharmacies as partners on the same platform.

Patient appDoctor appLab & pharmacy panelsAdmin
LiveHealthcare · India
System 04Short-video social platform

Short-video social with paid live streams

A short-video network with reusable sounds, duets, trending hashtags, messaging and live streams where viewers pay to join the host on stage.

Creator appLive streamingAdminMedia pipeline
Built 2020–2022Consumer social · India
The whole product

One engineer.Every surface.

Most products need four things built and kept in sync. I build all of them — on one backend, as one coherent system, not a hand-off chain between agencies.
01 / 04

iOS app

React Native apps built, released, and maintained in the App Store — in-app purchases included.

  • React Native
  • In-app purchases
  • App Store release
02 / 04

Android app

03 / 04

Web platform

04 / 04

AI solutions

Engagements

Three waysto work together.

No fixed menus, no prices posted for show. Tell me what you’re building and we’ll scope it properly on a quick call.
01End to end

Full product build

Idea to live product — mobile, web, and AI — designed, built, and shipped to the stores.

  • iOS + Android apps
  • Web platform + AI features
  • Payments, auth, the works
Scope it on a call →
02

MVP sprint

A focused build that gets a real, shippable core in front of users, fast.

  • Scoped in a call
  • Weekly demos
  • Launch-ready
Scope it on a call →
03

Ongoing partner

Continuous product work — new features, scaling, and maintenance, month to month.

  • Retainer or staff-aug
  • One accountable engineer
  • Fits your team
Scope it on a call →
Process

Predictable,not precious.

Five steps, weekly demos, one accountable engineer. You always know exactly where the product stands.

Discovery

We scope the product, the users, and the constraints on a call. You get a clear plan and timeline.

You getA scoped plan and timeline

Design

Interface and architecture designed together, so the build starts with no surprises.

You getScreens and architecture, signed off

Build

I build the whole stack — apps, web, AI — with weekly demos you can actually click.

You getA working demo, every week

Ship

To the App Store, Play Store, and the web. I handle the release, not just the code.

You getLive in the stores and on the web

Support

Post-launch fixes, scaling, and new features as the product grows.

You getFixes, scaling and new features
About

The architectbehind the systems.

Soumya Ranjan working on a laptop at an outdoor café at night
Soumya RanjanBuilding, shipping, repeating

I’m Soumya — a full-stack product engineer. I design and build complete products end to end: the mobile apps, the web platforms, and the AI solutions that make them smarter. One engineer, the whole stack, shipped and live.

Over the last few years I’ve shipped more than twenty products across ten-plus industries. The seven featured here are live for clients in France, the US, and India — in subscription publishing, film production, home tutoring, edtech, civil engineering, social automation, and video commerce.

You work with one person for the whole stack: transparent scope, weekly demos you can click, and store releases handled by me — not handed back to you.

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Contact Replying from India · --:-- IST

Let’s buildsomething live.

Tell me what you’re building. I’ll scope it on a quick call and give you a clear plan — no templates, no fixed menus.