Staff Software Engineer, BackEnd

QXO • Seattle, WA

3h • $160,000 - $288,000

About The Position

QXO is building the next-generation mobile experiences that power intelligent decision-making and seamless user interaction across our product ecosystem. We are seeking a Staff Software Engineer, Mobile (React Native) to lead the architectural strategy and foundational development of our hybrid mobile platform. You will drive our transition to React Native, shaping key infrastructure, guiding migration paths, and setting standards for hybrid development across our mobile applications. This is a high-impact individual contributor role for a mobile expert who thrives on system design, platform evolution, and mentoring teams through technical transformation.

Requirements

• 5+ years of professional software engineering experience with a focus on mobile platforms.
• 3+ years of experience working with React Native, including production-level deployment, library integration, and performance tuning.
• Hands-on experience developing and maintaining native mobile applications in Swift, Kotlin, Objective-C, or Java.
• Experience with leading team-level and cross-org engineering projects and managing project stakeholders
• Proven ability to lead hybrid mobile architecture—including clear separation of concerns, native-to-JS bridges, and modular code structure.
• Deep understanding of mobile performance, including memory usage, battery optimization, and UI responsiveness across platforms.
• Demonstrated success leading architectural planning and migration strategies involving React Native adoption.
• Strong product sensibility with a track record of collaborating effectively with design and product partners to deliver elegant, user-centered experiences.
• Experience defining development standards, implementing testing strategies, and promoting platform consistency across teams.
• Strong mentorship and communication skills—able to influence and level-up teams through reviews, pairing, and documentation.
• Familiarity with mobile CI/CD pipelines, build tools, and app performance monitoring frameworks.
• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

Nice To Haves

• Experience leading or supporting large-scale migrations from native mobile apps to React Native.
• Comfort with TypeScript, Metro bundler, and working with custom native modules in a React Native environment.
• Experience contributing to shared component libraries or mobile design systems.

Responsibilities

• Lead the design and implementation of React Native infrastructure across QXO’s mobile platform.
• Architect and deliver hybrid mobile systems that seamlessly bridge native and cross-platform components.
• Partner with engineering, design, and product teams to align mobile architecture with business and user needs.
• Evaluate, integrate, and support core React Native libraries, native modules, and performance monitoring tools.
• Define and communicate clear migration paths for moving from native codebase to hybrid React Native architecture.
• Establish and document development best practices, testing strategies, and platform conventions for hybrid mobile engineering.
• Advocate for high code quality, long-term maintainability, and strong user experience across all mobile workstreams.

Benefits

• Base pay range: $160,000 - $288,000
• Annual performance bonus
• Long term incentive (equity/stock)
• 401(k) with employer match
• Medical, dental, and vision insurance
• PTO, company holidays, and parental leave
• Paid Time Off/Paid Sick Leave: Applicants can expect to accrue 15 days of paid time off during their first year (4.62 hours for every 80 hours worked) and increased accruals after five years of service.
• Paid training and certifications
• Legal assistance and identity protection
• Pet insurance
• Employee assistance program (EAP)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior