Job Description Senior Lead Engineer - Onsite 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.What Youll Be Doing
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. Mentor engineers and foster a culture of ownership, craftsmanship, and continuous improvement. Participate in architecture reviews and roadmap planning for long-term mobile platform scalability. What You Bring to the Table
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. Familiarity with authentication flows (OIDC, PKCE, secure token handling). Experience with API integrations (REST, GraphQL) and handling network resiliency/offline-first design. Strong understanding of mobile DevOps, CI/CD, and release governance. Experience collaborating in Agile environments and influencing cross-functional stakeholders. Ability to balance hands-on development with strategic architectural leadership. Basic Qualifications
Bachelors or Masters degree in Computer Science, Engineering, or related field (or equivalent experience). 10%2B years of software development experience. 6%2B years of hands-on mobile development experience. 4%2B 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. Demonstrated leadership experience mentoring engineers and guiding technical direction. Strong problem-solving skills with the ability to make strategic architectural decisions balancing business and technical needs. `
Show more Numbers & Facts Location Framingham Job Type Contractor
Skills
Agile Programming Methodologiesunmatched
Amazon Web Services (AWS)unmatched
Androidunmatched
Android Applicationsunmatched
Appleunmatched
Application Programming Interface (API)unmatched
Architectural Servicesunmatched
Authenticationunmatched
Best Practicesunmatched
Biometricsunmatched
Cachingunmatched
Cloud Computingunmatched
Computer Scienceunmatched
Continuous Deployment/Deliveryunmatched
Continuous Improvementunmatched
Continuous Integrationunmatched
Cross-Functionalunmatched
DevOpsunmatched
Ecosystemsunmatched
GCP (Good Clinical Practices)unmatched
Google Appsunmatched
GraphQLunmatched
Kotlinunmatched
Leadershipunmatched
Maintain Complianceunmatched
Management Strategyunmatched
Memory Hardwareunmatched
Memory Managementunmatched
Mentoringunmatched
Microsoft Windows Azureunmatched
Mobile Applicationsunmatched
Mobile Applications Developmentunmatched
Model View ViewModel (MVVM)unmatched
Network Routersunmatched
OAuthunmatched
Operationsunmatched
Performance Tuning/Optimizationunmatched
Problem Solving Skillsunmatched
Product Designunmatched
Production Systemsunmatched
Quality Metricsunmatched
REST (Representational State Transfer)unmatched
React Nativeunmatched
Regulatory Complianceunmatched
Release Management/Engineeringunmatched
Scalable System Developmentunmatched
Software Developmentunmatched
Software Development Lifecycle (SDLC)unmatched
Startupunmatched
Swiftunmatched
Systems Scalabilityunmatched
Team Playerunmatched
Technical Leadershipunmatched
Test Automationunmatched
iOSunmatched
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