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MN
Open to senior product engineering opportunities

Engineering mobile products where architecture, performance, and business goals align.

I build production-grade Flutter applications where clean architecture, real-time systems, and commerce flows come together — shipping cross-platform products that teams can maintain and scale.

Real-Time SystemsPayments & CommerceScalable ArchitectureCross-Platform Products

Production deployments · Android & iOS · Cross-industry mobile products

Portrait of Mohtashim Naeem

About

How I build

I ship cross-platform mobile products to production — from real-time GPS and payments to subscription platforms and multi-role B2B systems.

My work sits where product thinking meets architecture. I turn ambiguous requirements into systems teams can own, with clear boundaries and interfaces that survive backend changes.

Product-first engineering

Requirements become systems, not screens. Decisions weighed against user outcomes and long-term maintainability.

Maintainability is velocity

Clean Architecture lets teams ship faster six months from now — not just on launch day.

UX is engineering

Latency, offline behavior, and state consistency are product decisions — not polish added at the end.

Work

Shipped to App Store & Google Play

Six production domains — anonymous names, real store links. Open the viewer to explore what shipped and jump to the stores.

iOSAndroid

Transportation Platform

Real-time mobility · GPS · Payments

  • Sub-second location sync across rider and driver clients
  • Trip lifecycle governed by explicit state machines
iOSAndroidWeb

Social Engagement Platform

Messaging · Media feeds · UGC

  • Optimistic messaging with server reconciliation
  • Tiered media cache tuned per device memory class
iOSAndroid

Maritime Marketplace

Listings · Booking · Payments

  • Reservation holds with TTL to prevent double-booking
  • Composable multi-step checkout workflow
iOSAndroid

Fleet Operations Platform

Tasks · Subscriptions · Multi-role

  • Role-scoped navigation graphs per user type
  • Entitlement-driven feature flags by subscription tier
iOSAndroid

Wellness & Learning Platform

Audio · Subscriptions · Profiles

  • Background audio with interruption handling
  • Profile-scoped content entitlements
iOSAndroid

Community & Faith Platform

Social · Premium content · Media

  • Unified media pipeline across free and premium tiers
  • Event-driven notifications with preference filtering

Expertise

What I build

Domains where I have shipped production systems — not just implemented features.

Real-Time Systems

Building responsive experiences powered by live data, location services, and event-driven architectures.

  • Live GPS tracking and geofencing
  • WebSocket-driven state synchronization
  • Push notification orchestration

Payments & Commerce

Designing secure transaction flows, subscription models, and revenue-generating experiences.

  • Stripe and Stripe Connect integration
  • Subscription lifecycle management
  • Multi-party payment routing

Product Engineering

Turning requirements into maintainable software systems that evolve with business needs.

  • Feature delivery from concept to store
  • Cross-platform parity without compromise
  • User-centric state and navigation design

Scalable Architecture

Creating software foundations that support growth without sacrificing quality.

  • Clean Architecture with clear boundaries
  • Testable domain and data layers
  • Modular feature composition

Experience

Experience

From shipping features to owning architecture on production products.

Dexnive logo

2025 — Present

Senior Mobile Product Engineer

Dexnive · Product Engineering · Multi-domain Platforms

  • Led architecture for real-time mobility and marketplace products
  • Owned payment integration and subscription system design
  • Established Clean Architecture patterns across feature teams
  • Drove performance optimization for production-critical flows
LBG logo

2023— 2025

Mobile Product Engineer

LBG · Product Engineering · Consumer & B2B Applications

  • Shipped cross-platform features from requirements to App Store
  • Built real-time chat, GPS tracking, and notification systems
  • Introduced state management standards across projects
  • Collaborated with backend teams on API contract design

2022 — 2023

Flutter Developer

Mobile Development · Cross-Industry Products

  • Delivered production Flutter applications for Android and iOS
  • Implemented authentication, deep linking, and offline-first patterns
  • Contributed to CI/CD pipeline setup and release automation
  • Developed foundation in Clean Architecture and testing practices

Technology

Stack

Technologies used across shipped production apps.

Mobile Development

FlutterDartAndroidiOSPlatform Channels

Architecture

Clean ArchitectureSOLID PrinciplesBLoCCubitRiverpodRepository Pattern

Backend Integration

REST APIsWebSocketsFirebaseOAuthDeep LinkingPush Notifications

Payments

StripeStripe ConnectSubscriptionsIn-App Purchases

Maps & Location

Google MapsReal-Time GPSGeofencingRoute Optimization

Performance & Tooling

Widget ProfilingMemory OptimizationImage CachingDevToolsUnit Testing

Deployment & CI/CD

GitHub ActionsFastlaneCodemagicApp Store ConnectGoogle Play Console

Contact

Let's discuss your next product

Send a message below or reach out directly — open to senior product engineering roles.