Software Development Engineer III (Mobile)

ABOUT QUINCE Quince is a destination for builders, creators, innovators, and operators who want to come together and challenge the status quo. Our mission is simple: make really high quality essentials for really low prices, fairly and sustainably. We deliver on that mission through a unique manufacturer-to-consumer (M2C) model eliminating the layers of traditional retail that add cost and result in consumers paying more than they need to. We find, build relationships with, and work directly with the manufacturing partners behind some of the world’s finest products. From there, our teams design smart, efficient operational processes and build and deploy proprietary technology, AI, and analytics to help us scale fast.

What began with a small assortment of elevated basics has quickly grown into a cross-category brand spanning apparel, accessories, home goods, and more. Today, tens of millions of people across a growing number of countries come – and return – to Quince because they trust us to deliver.

OUR CULTURE Quince is a culture built for builders by builders. Our way of working starts with a blank sheet of paper. We question conventional thinking, use technology and data to uncover new opportunities, and move quickly to turn ideas into reality. We aren’t interested in replicating how others do retail. We’re building a better way – at a speed and scale unlike anything that’s been done before.

• We dream big and chase the hard problems others shy away from. Rejecting long-held assumptions is part of our company’s DNA. Where conventional wisdom says you have to choose – soft or durable, speed or rigor, quality or price – we ask why that trade-off has to exist in the first place.
• Our pace is fast and the bar is high because our customers expect a lot from us and we refuse to let them down. We believe the best results come from challenging ourselves, learning from one another, and building on each other’s strengths.
• Here, responsibility is not determined by role, tenure, or seniority. Every team member - no matter their level - has the opportunity to drive our business and shape our trajectory.

If you’re someone who likes to imagine new possibilities and build better systems rather than plug-in to outdated ones, Quince is the place for you.

THE ROLE Software Development Engineer III – Mobile We’re looking for a Software Development Engineer III – Mobile to join our growing engineering team and help build high-performance mobile experiences for Quince customers. In this role, you will design, develop, and optimize React Native applications that deliver fast, reliable, and seamless experiences at scale.

You will take ownership of complex mobile engineering problems, with a strong focus on performance, scalability, and user experience. You’ll work closely with Product, Design, and Backend teams to build scalable solutions while contributing to the evolution of Quince’s mobile architecture and engineering practices.

This role is ideal for an engineer who is deeply passionate about mobile performance, enjoys solving complex React Native challenges, and is willing to go beyond standard implementations to deliver an exceptional customer experience.

Responsibilities Mobile Application Development

• Design, develop, and maintain high-performance mobile applications using React Native.
• Build scalable, reusable, and maintainable components following modern mobile engineering best practices.
• Take ownership of complex technical problems across the React Native application stack.
• Evaluate and adopt appropriate libraries, frameworks, and architectural patterns as the mobile platform evolves.
• Contribute to internal libraries and platform capabilities where existing solutions do not adequately address engineering requirements.

Performance & Optimization

• Drive mobile performance improvements across rendering, startup time, memory usage, responsiveness, and application stability.
• Identify and eliminate unnecessary re-renders and inefficient render cycles.
• Optimize large lists and complex UI interactions to deliver smooth experiences across a wide range of devices.
• Analyze application performance and proactively identify bottlenecks before they impact customers.
• Establish and promote performance engineering best practices across the mobile team.

React Native & Native Platform Engineering

• Work deeply with React Native internals and m…