SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Quince is a manufacturer-to-consumer (M2C) fashion and accessories brand on a mission to deliver high-quality essentials at fair prices sustainably. The company has grown from basics into a cross-category brand spanning apparel, accessories, and home goods, serving tens of millions of customers globally. Quince operates with a builder-first culture that questions conventional retail wisdom and uses technology, AI, and analytics to scale rapidly.
As a Software Development Engineer II – Mobile, you will design, develop, and optimize React Native applications that deliver fast, reliable, and seamless experiences for Quince's customer base. You will take ownership of mobile features and technical problems with a strong focus on performance, scalability, code quality, and user experience.
Key responsibilities include:
**Mobile Application Development:** Design and develop high-quality mobile applications using React Native. Build reusable, maintainable, and efficient components following modern mobile engineering best practices. Take ownership of features from development through testing and production release. Work with existing libraries, frameworks, and architectural patterns to build scalable solutions. Identify opportunities to improve quality, maintainability, and performance.
**Performance & Optimization:** Improve mobile application performance across rendering, startup time, responsiveness, memory usage, and stability. Identify and resolve unnecessary re-renders and inefficient rendering patterns. Optimize large lists and complex UI interactions. Use profiling and debugging tools to identify bottlenecks and implement solutions. Apply mobile performance best practices during feature development and code reviews.
**React Native & Native Platform Engineering:** Build and optimize mobile experiences using FlashList, React Native Reanimated, React Native Gesture Handler, and Expo. Troubleshoot React Native issues across JavaScript and native layers. Investigate platform-specific issues across iOS and Android. Work with React Native's native capabilities and TurboModules when required. Collaborate with senior engineers on native iOS or Android code for platform-specific or performance-related issues.
**Quality & Reliability:** Develop and maintain test cases to ensure quality and reliability. Debug and resolve development and production issues promptly. Contribute to improving application stability, performance, and release quality. Participate in code reviews and provide feedback on implementation quality, performance, and maintainability. Follow engineering standards for testing, documentation, and production readiness.
**Cross-Functional Collaboration:** Partner with Product, Design, Backend, and other engineering teams to define and implement mobile features. Translate product and customer requirements into scalable and maintainable technical solutions. Collaborate to identify technical dependencies and resolve implementation challenges. Communicate technical decisions, progress, and trade-offs clearly with stakeholders.
**Technical Contribution & Mentorship:** Contribute to technical discussions and design decisions within the mobile team. Share knowledge and best practices with other engineers. Provide guidance and support to junior engineers when required. Stay current with developments in React Native, mobile platforms, and mobile performance techniques. Contribute to improving engineering practices, development workflows, and overall mobile application quality.
**Requirements:**
Required:
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field
- 2–4 years of professional experience in software, frontend, or mobile engineering
- 2+ years of hands-on experience building production applications with React Native
- Strong proficiency in JavaScript and TypeScript with solid understanding of React Native fundamentals
- Good understanding of mobile application architecture, rendering, state management, and performance optimization
- Hands-on experience optimizing React Native applications, including render cycles, unnecessary re-renders, memory usage, and application responsiveness
- Experience troubleshooting React Native issues across JavaScript and native layers
- Experience with modern React Native libraries such as FlashList, React Native Reanimated, React Native Gesture Handler, and Expo
- Proficiency with debugging tools such as Flipper, React DevTools, and Chrome DevTools
- Familiarity with iOS and Android platform fundamentals
- Strong problem-solving skills with focus on performance, quality, and customer experience
- Strong communication and collaboration skills with ability to work effectively across functions
Preferred:
- Experience building consumer-facing mobile applications
- Experience with React Native performance profiling and optimization
- Familiarity with the New React Native Architecture, including JSI, Fabric, and TurboModules
- Experience integrating third-party native SDKs or working with native modules across iOS and Android
- Experience with mobile CI/CD and automated release workflows, including Expo Application Services (EAS)
- Experience with mobile observability, crash reporting, performance monitoring, and analytics
- Experience in e-commerce, retail, or other high-scale consumer applications
- Experience mentoring junior engineers or contributing to mobile engineering standards
