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Three teams.
Growing responsibility.

From maternal health to identity verification and agricultural trade. Three case studies in building reliable mobile products, with the decisions and outcomes behind each one.

Engineering case studies

THE MATERNAL HEALTH PLATFORM
Official iMumz illustration of fertility, pregnancy and parenting programs
FertilityPregnancyConsultations
Shared subscription entitlements
Official product artwork · Simplified platform overview
01 / HealthTech · MobileJun 2024 — Sep 2026

iMumz

iMumz · Software Engineer II

Led a mobile team. Improved a product at scale.

I led four engineers, owned modular architecture and Server-Driven UI, and built a fertility app from concept to production in 3–4 months.

−67%runtime crashes+43% onboarding completion
Engineering decisions
THE CHALLENGE
Grow a maternal-health product suite while protecting the experience people already depend on.
MY APPROACH
Modular feature boundaries, Server-Driven UI and instrumented critical paths keep new products and existing journeys moving together.
FlutterKotlinNext.js
Read case study
CONFIGURATION OVER DUPLICATION
market.config.json
routing : "schema-driven"
markets : 6+
native_bridge : "Kotlin"
Flutter routing engineOne flow. Market-specific rules.
Document
capture
Native
biometrics
Identity
verification
Simplified architecture · Flutter ↔ Kotlin SDK modules
02 / FinTech · Enterprise KYCDec 2022 — Jun 2024

iBind KYC

iBind Systems · Software Engineer I

One KYC engine across six markets.

I designed the config-driven Flutter routing engine and built native Kotlin modules for document capture and biometric verification.

−70%new-country onboarding effort97% first-attempt verification
Engineering decisions
THE CHALLENGE
Different compliance rules, document flows and biometric SDKs in every market.
MY APPROACH
A config-driven Flutter routing engine, with Kotlin modules connecting native verification SDKs.
FlutterKotlinClean Architecture
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COMMERCE, CLOSER TO THE FIELD
01 / AGENT APPMarket intelligence.Area analytics · Comparable sales
02 / BROKER APPTrade execution.Bulk orders · Brokerage calculations
DiscoverCompareTrade
0 → 1Two apps.
One connected marketplace.
Product workflow overview · Built at Bijak
03 / AgriTech · MarketplaceSep 2021 — Dec 2022

Bijak

Bijak · Software Engineer I

Two trading apps, built from 0→1.

I built the Agent and Broker apps and shipped 15+ production features across trading, payments, invoices and market discovery.

0 → 1Agent & Broker appsBijak platform: 500K+ downloads · 100K+ verified traders
Engineering decisions
THE CHALLENGE
Give agents and brokers real-time market context and a dependable way to trade in bulk.
MY APPROACH
Build two apps from 0→1, connecting area analytics, comparable sales and automated brokerage calculations.
FlutterGetXAWS
Read case study

PulseSync.

Health data. Connected.
250+ users. Built independently.

An independently built, cross-platform health-tracking product used by 250+ people. Nutrition, hydration, sleep, activity, workouts, weight and wellness tracking in one Flutter application.

I own the architecture, data model and synchronization layer: Android Health Connect and Apple Health, offline-first persistence, background sync, conflict handling and cloud backup.

  • Flutter
  • Riverpod
  • Firebase
  • Android Health Connect
  • Apple Health
Explore on Google Play Built by Yashraj Jain · Android & iOS
Official PulseSync Google Play screenshot showing its daily health dashboard
Official Google Play product screenshot
Available immediately

Building your mobile team?
Let’s talk about the role.

Android, Kotlin & Flutter · Bengaluru & remote teams.
Send the role and a little about your team. I’ll take it from there.

yashrajjain726@gmail.com