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# Senior Software Engineer, Mobile

- **Company:** QXO, Inc.
- **Location:** Seattle, WA, United States
- **Experience:** Expert
- **Salary:** $138,000.0 - $235,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Adobe InDesign, Artificial Intelligence, Amazon Web Services, Cloud Computing, Code Review, Continuous Integration, Data Structures, Design of User Interfaces, Object-Oriented Software Development, Performance Tuning, Recommender Systems, Next.js, Search Technologies, Software Engineering, TypeScript, ReactJS, Reliability of Systems, Kotlin, Solid Principles, Information Technology, Low Latency, Data Analytics, Machine Learning Operations, Front End Software Development, Golang
- **Published:** August 15, 2026
- **Apply:** https://www.seattlejobs.com/job.asp?id=3354573398&tx=JT10395UTD&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

This role is ideal for engineers who are passionate about building high-quality software, eager to learn, and excited to make a meaningful impact in a fast-paced environment., * 2-5 years of professional software engineering experience.

 * Proficiency in one or more object-oriented programming languages (e.g., Java, Kotlin, Go).
 * Experience with modern front-end technologies and frameworks such as React, Next.js, or TypeScript.
 * Solid understanding of data structures, algorithms, and software design principles.
 * Experience developing and maintaining production systems in a cloud environment (e.g., AWS, GCP).
 * Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
 * Strong collaboration and communication skills.
 * Experience building commerce, checkout, or personalization systems.
 * Familiarity with responsive, accessible, and high-performance UI development.
 * Exposure to AI/ML systems or data-driven services.
 * Experience with experimentation frameworks, recommendation systems, or search technologies.
 * Knowledge of CI/CD, observability, and performance tuning tools.

## Description

As a Senior Software Engineer, you will help design, build, and maintain the core services and user experiences that power our commerce platform. You'll work closely with product, design, and other engineering teams to deliver secure, reliable, and scalable solutions that serve millions of users across web and mobile., * Design, develop, and maintain eCommerce services and user interfaces.

 * Implement scalable, low-latency systems that meet performance and security goals.
 * Build intuitive and performant front-end experiences.
 * Collaborate with cross-functional teams to deliver end-to-end product features.
 * Write clean, efficient, and testable code.
 * Participate in design and code reviews.
 * Support the continuous improvement of system reliability and operational excellence.
 * Contribute to shared libraries, platform components, and design systems.


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