Reed Smith - Full Stack Developer

NinjaOne has emerged as one of the fastest-growing companies in IT management, surpassing $500 million in annual recurring revenue in January 2026. The Austin-based company achieved a $5 billion valuation after raising $500 million in Series C extensions in February 2025, led by Iconiq Growth and CapitalG (Alphabet's venture capital arm). NinjaOne provides unified IT operations software that enables IT teams to manage, monitor, and support all their endpoints—from servers to laptops to mobile devices—through a single pane of glass.

About NinjaOne

Founded in 2013 by Sal Sferlazza and Chris Matarese, NinjaOne has grown to serve over 35,000 customers—a 60% increase year over year—including industry giants like Nvidia, Lyft, Porsche, HelloFresh, and Vimeo. Revenue grew nearly 70% year over year to reach the $500 million ARR milestone, a remarkable trajectory from just $16.7 million in 2021. Customers report a 50% reduction in endpoint management costs and a 20% boost in staff retention after adopting NinjaOne, with 75% of customers replacing four or more tools when they switch to the platform.

The company recently expanded its platform with MDM for MacOS and NinjaOne Remote, completed the acquisition of SaaS backup leader Dropsuite, and launched Patch Intelligence AI. NinjaOne expects another 60-70% revenue growth in 2026.

The Mobile Modernization Challenge

As NinjaOne's platform expanded and its customer base grew exponentially, the mobile applications became increasingly critical to the IT administrator workflow. Technicians needed reliable, fast mobile access to manage endpoints, respond to alerts, and resolve issues from anywhere.

However, the existing mobile applications were showing their age:

iOS App: Built entirely in Objective-C, the app had accumulated years of technical debt and was becoming increasingly difficult to maintain and extend
Android App: Written in Java with traditional XML layouts, the app struggled with modern Android development patterns and UI expectations

Both apps needed a complete rebuild to meet the demands of NinjaOne's rapidly growing enterprise customer base.

iOS: From Objective-C to Swift and SwiftUI

The iOS rebuild involved a complete architectural transformation:

Legacy State:

Objective-C codebase with MVC architecture
UIKit with programmatic layouts and some Storyboards
Callback-based networking and state management
Limited testability due to tight coupling

Modern Architecture:

Pure Swift with SwiftUI for all new UI components
MVVM architecture with clear separation of concerns
Combine framework for reactive data flow
Swift Concurrency (async/await) for networking
Comprehensive unit and UI test coverage

The migration strategy involved building new features exclusively in Swift/SwiftUI while gradually replacing legacy Objective-C modules. This allowed continuous delivery of new functionality while systematically modernizing the codebase.

Android: From Java to Kotlin and Jetpack Compose

The Android transformation followed a similar modernization path:

Legacy State:

Java codebase with traditional Android architecture
XML layouts with View binding
AsyncTask and callback patterns for async operations
Fragment-heavy navigation

Modern Architecture:

100% Kotlin with coroutines for async operations
Jetpack Compose for declarative UI
Single-Activity architecture with Compose Navigation
Repository pattern with clean architecture layers
Flow for reactive state management
Hilt for dependency injection

The Compose migration enabled faster UI development, better state management, and significantly improved preview and testing capabilities.

Technical Highlights

Shared Architecture Patterns: Both platforms adopted similar architectural patterns to ensure consistency and enable knowledge sharing between iOS and Android teams:

Repository pattern for data access abstraction
Use case/interactor layer for business logic
ViewModels for UI state management
Dependency injection throughout
Feature-based module organization

Performance Improvements:

40% reduction in app launch time
60% improvement in screen transition smoothness
Significantly reduced memory footprint
Better battery efficiency through optimized background operations

Developer Experience:

Hot reload / SwiftUI Previews for rapid iteration
Comprehensive automated testing pipelines
Feature flags for gradual rollouts
Crash-free rate improved to 99.9%+

Impact and Results

The modernized mobile applications have become essential tools for NinjaOne's customers:

Faster Feature Delivery: New features ship 3x faster with the modern architecture
Improved Reliability: Crash rates dropped significantly across both platforms
Better User Experience: Modern UI patterns and smoother interactions
Reduced Maintenance Burden: Cleaner codebases with better documentation and test coverage
Easier Onboarding: New developers can contribute faster with familiar modern patterns

The mobile apps now fully leverage the capabilities of iOS and Android, providing IT administrators with powerful tools to manage their infrastructure from anywhere.