Lead Mobile Product Engineer

Building scalable
mobile products
with Flutter.

A startup-focused engineer specializing in launching premium, high-performance mobile environments, crafting beautiful visual interfaces, and architecting maintainable production systems.

FLUTTERCore Engine
Modular DartImplementing package-based modularization for parallel feature development.
Distributed SystemsArchitecting resilient data synchronization for intermittent connectivity.
Native BridgesEngineering high-performance platform channels for custom native SDKs.
Clean ArchitectureEnforcing strict domain-layer isolation for long-term maintainability.
BLoC / GetXManaging complex state transitions with predictable, event-driven patterns.
CI/CD PipelinesAutomating production releases with fastlane and custom GitHub Actions.
System DesignScaling mobile infrastructure to handle 1M+ active users.
Engineering Case Studies

Shipped Products

Technical breakdowns of mobile applications built for production. Focusing on architectural decisions, performance tradeoffs, and system scalability.

S

Wallet Balance

$18,485.90

FINT PREMIUM

**** **** **** 8820

SUMUKH YR

12/28

Stake Earnings+14.2%

Transactions

Stripe API Payout

2m ago

+$1,240.00

AWS Cloud Infrastructure

1h ago

-$42.00

Fintech Wealth Management System

Fint

A high-concurrency investment dashboard for multi-asset tracking and real-time crypto valuation.

Architected using feature-first Clean Architecture to decouple domain logic from state management. Implemented a custom Hive-based caching layer with optimistic UI updates, reducing perceived latency by 40% in low-connectivity environments.

Clean ArchitectureGetX Selective RebuildsHive DBWebsocket Integration
Modular DomainArchitecture
Selective IDState Rebuilds
Write-ThroughCache Strategy

The Problem

Fragmented wealth tracking across crypto and traditional assets with high latency in data updates.

Product Thinking

Users need a unified, low-friction dashboard that works offline and provides instant feedback on asset changes.

Engineering Challenges

Handling real-time websocket streams while maintaining UI performance and local state consistency.

Learnings

Deepened understanding of selective rebuilds in GetX and the importance of a robust write-through caching strategy.

Stage 1
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Add the Lions!

Calculated

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Physics-Driven Educational Engine

Kiddo Rechner

A low-latency educational tool utilizing custom physics engines and optimized widget trees.

Optimized animation performance by implementing RepaintBoundaries and custom TickerProviders, maintaining a stable 60 FPS on low-end Android devices. Engineered a robust local persistence layer using SQLite for offline progress tracking.

MVC PatternSQLite PersistenceRepaintBoundaryCustom Physics
60 FPS ConstantStability
SQLite ACIDLocal Ops
Leaks FixedMemory

The Problem

Educational apps for children often feel 'stiff' and lack the tactile feedback required for engagement.

Product Thinking

Use physics-based interactions to make learning intuitive and playful, mimicking physical objects.

Engineering Challenges

Maintaining 60 FPS while running a physics engine and complex animations on budget hardware.

Learnings

Mastered the use of RepaintBoundary to isolate heavy animation sections from the rest of the widget tree.

๐Ÿ”๏ธ
Recommended

Kyoto Itinerary

Japan โ€ข 6 Days

Flight Ticket

KIX Terminal 1 โ€ข 10:20 AM

Active

Upcoming Stops

โ›ฉ๏ธ

Fushimi Inari Shrine

09:00 AM

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Arashiyama Bamboo Forest

02:30 PM

Re-Generate with AI
Offline-First Itinerary Engine

TripnThrill

An AI-enhanced travel planner built with a focus on background synchronization and data consistency.

Implemented BLoC for predictable state transitions across complex multi-step user flows. Built a background sync engine that handles intermittent connectivity using a repository pattern and idempotent API calls.

BLoC PatternRepository PatternBackground SyncIdempotent APIs
Event-DrivenState
Conflict-FreeSync
Offline-FirstAvailability

The Problem

Travel planning is often disrupted by poor connectivity, leading to data loss or inconsistent itinerary states.

Product Thinking

Build an 'offline-first' experience where users can plan without interruption, with background sync handling the rest.

Engineering Challenges

Conflict resolution in background synchronization when multiple devices update the same itinerary.

Learnings

Learned the value of idempotent API design and the Repository pattern for abstracting data sources.

SOS RADAR ACTIVE
Safe Hub
SOSPanic Button

Tracking: Active Session

Accurate to 3m โ€ข Battery 85%

Alert 1
Safety Critical Infrastructure

i Feel Safe

A background-service-powered emergency response system with high-precision GPS tracking.

Engineered platform-native bridges (Kotlin/Swift) for reliable background location tracking. Implemented a redundant SOS trigger mechanism that survives process death and low-power states.

Platform ChannelsNative Background ServicesRedundant CommsGeofencing
< 2s DispatchLatency
Fused LocationPrecision
Failover ReadyResilience

The Problem

Emergency tracking apps often fail due to process death or OS-level power management during critical moments.

Product Thinking

Reliability is the only metric that matters. The system must stay active regardless of app state.

Engineering Challenges

Bridging native background services to Flutter while ensuring minimal battery drain.

Learnings

Gained deep expertise in platform channels and the nuances of Android/iOS background execution limits.

UpiConnect SDK
v2.0.0
Dart

// Initialize UPI SDK

import 'package:upi_connect/upi.dart';

final upi = UpiConnect();

await upi.init(

merchantId: "sumukh@upi",

currency: "INR",

);

Transaction Channel

MethodChannel('upi/pay')

Native SDK Bridge Architecture

UPI Connect Plugin

A production-grade bridge for complex native UPI payment SDKs in Flutter.

Developed a robust MethodChannel interface to wrap native Kotlin and Swift SDKs. Focused on type-safe communication and error handling, reducing developer integration time from days to minutes.

Method ChannelsType-Safe BridgesKotlin/SwiftSDK Wrapping
80% FasterIntegration
Near ZeroOverhead
Dart DefinedType Safety

The Problem

Native UPI SDKs are complex to integrate into Flutter, often requiring redundant native code across projects.

Product Thinking

Provide a single, type-safe Dart API that abstracts away the native complexity for faster product iteration.

Engineering Challenges

Ensuring data integrity and error handling across the MethodChannel boundary.

Learnings

Advanced knowledge of package development and native-to-Dart bridge optimization.

The Engineer

Technical Philosophy

I build mobile products with a focus on architecture, performance, and long-term scalability. My approach combines deep technical expertise with a strong understanding of product-market fit.

Product Engineering

I prioritize user outcomes over technical vanity. Every architectural decision is evaluated against product goals, ensuring features are both scalable and purpose-driven.

System Integrity

Performance is a core requirement. I profile, optimize, and architect for high-concurrency and low-latency environments, ensuring 60 FPS stability across diverse hardware.

Strategic Velocity

I maintain speed without compromising technical debt. From zero to deployment, I balance rapid iteration with long-term maintainability and modular system design.

Career Journey

2023 โ€“ Present

Lead Mobile Engineer

Credit Saison India

Architecting core mobile infrastructure for a neo-lending platform serving 1M+ users. Leading the modularization of the Flutter codebase into 20+ independent feature packages, reducing CI/CD build times by 40% and enabling parallel development across 5 squads.

Flutter InfrastructureModular ArchitectureScaleTechnical Leadership
2021 โ€“ 2023

Senior Flutter Developer

Product-Driven Startup

Owned end-to-end delivery of a high-traffic travel platform. Reduced app launch times by 35% through dependency profiling and custom rendering optimizations. Implemented an offline-first sync engine that handled 50k+ daily active users.

Performance OptimizationOffline-FirstBLoCFirebase
2019 โ€“ 2021

Flutter Trainer & Mentor

Technical Education Platform

Designed and delivered advanced Flutter engineering curriculum to 200+ developers globally. Focused on production-grade patterns, state management tradeoffs, and native bridge architecture.

Technical MentorshipArchitectureEducationPublic Speaking

Core Expertise

Flutter / Dart (Expert)97%
Firebase & Cloud Infrastructure85%
Android Native (Kotlin)75%
iOS Native (Swift)68%
Node.js / Distributed Systems72%
CI/CD & DevOps Automation78%

Highlights

200+ Engineers Trained
10+ Production Systems Shipped
Open Source Contributor
Technical Mentorship
Flutter Architecture Speaker
Technical Writing

From the Blog

Engineering deep-dives, architectural breakdowns, and Flutter performance optimization strategies. Written for senior engineers and product builders.

Work Together

Let's Build Something

Interested in building impactful mobile products together? I'm always open to thoughtful opportunities, collaborations, and great conversations.

Send a Message

Available

Open to premium mobile roles & collaborations

India ยท Remote-first ยท Open to Relocation
Download ResumePDF โ†“
ยฉ 2026Sumukh YR. Crafted with Flutter expertise & Next.js precision.
Available for premium mobile architectures