Senior Lead Mobile Engineer

TechDigital Group; Framingham (MA); On-site; USD 120,000 - 150,000; Full time

Job summary

A technology company is seeking a Senior Lead Engineer – React Native to design and build scalable mobile applications. The ideal candidate will have over 10 years of software development experience and extensive expertise in mobile architecture, particularly using React Native, TypeScript, and Expo. Responsibilities include leading mobile engineering operations, optimizing performance, and ensuring high standards in app development for both the Apple App Store and Google Play Store. This role offers a unique opportunity to shape the technical direction of a cutting-edge mobile platform.

Qualifications

• 10+ years of software development experience.
• 6+ years of hands-on mobile development experience.
• 4+ years leading React Native applications in production environments.
• Experience working with cloud-based backends (Azure, AWS, or GCP).
• Strong hands-on experience building production-grade apps using React Native and TypeScript.

Responsibilities

• Provide technical leadership and oversee the daily mobile engineering operations.
• Define and drive the mobile architecture strategy aligned with business goals.
• Lead the design and development of scalable, high-performance mobile applications.

Skills

React Native

TypeScript

Expo

Mobile Architecture Patterns

CI/CD Pipelines

Automated Testing

DevOps Best Practices

Native iOS (Swift)

Android (Kotlin)

Network Resiliency

Tools

Redux

React Navigation

Job description

Mandatory Skills

• React Native, TypeScript, Expo, and modern mobile architecture patterns.

Job Description

We're looking for a Senior Lead Engineer – React Native with deep experience designing and building scalable, high-performance mobile applications using React Native, TypeScript, Expo, and modern mobile architecture patterns. This role will play a critical part in shaping the technical direction of our mobile platform, driving architecture decisions, optimizing performance, and delivering enterprise-grade mobile experiences.

Key Responsibilities

• Provide technical leadership and oversee the daily mobile engineering operations.
• Define and drive the mobile architecture strategy aligned with business goals.
• Lead the design and development of scalable, high-performance mobile applications using React Native and TypeScript.
• Architect modular, reusable component systems and scalable state management solutions (Redux, Zustand, Context API, etc.).
• Design clean navigation, deep linking, and mobile routing strategies (React Navigation, Expo Router).
• Implement secure authentication flows (OAuth/OIDC, biometrics, secure storage, token lifecycle management).
• Drive native module integrations (Swift, Kotlin) for SDKs such as payments, fraud detection, analytics, push notifications, and device security.
• Optimize mobile performance (startup time, bundle size, memory usage, rendering performance, offline caching).
• Establish CI/CD pipelines for mobile (Fastlane, EAS Build, App Store Connect, Google Play Console).
• Lead app release management, versioning strategy, and store compliance.
• Ensure adherence to mobile security best practices, privacy compliance, and accessibility standards.
• Partner with backend teams to define API contracts and optimize mobile-backend interactions.
• Champion automated testing (Jest, React Native Testing Library, Detox) and code quality standards.
• Participate in architecture reviews and roadmap planning for long-term mobile platform scalability.

Basic Qualifications

• 10+ years of software development experience.
• 6+ years of hands-on mobile development experience.
• 4+ years leading React Native applications in production environments.
• Proven experience delivering apps to both Apple App Store and Google Play Store.
• Experience working with cloud-based backends (Azure, AWS, or GCP).
• Strong experience with CI/CD pipelines, automated testing, and DevOps best practices.
• Strong hands-on experience building production-grade apps using React Native and TypeScript.
• Deep understanding of Expo ecosystem (EAS, OTA updates, build pipelines, native configuration).
• Expertise in mobile architecture patterns (Clean Architecture, MVVM, modular architecture).
• Experience integrating native iOS (Swift) and Android (Kotlin) modules into React Native apps.
• Strong understanding of app lifecycle, memory management, threading, and performance tuning.
• Experience implementing push notifications, deep linking, analytics SDKs, and mobile security frameworks.
• Experience with API integrations (REST, GraphQL) and handling network resiliency/offline-first design.