Senior Software Engineer - E-Commerce Platform & AI

QXO; Seattle (WA); On-site; USD 158,000 - 214,000; Full time

Benefits offered by this job

Annual bonus

Stock options

401(k) with employer match

Medical, dental, and vision insurance

PTO and parental leave

Paid training

Pet insurance

EAP

Job summary

QXO is seeking a Senior Software Engineer to design, build, and maintain core services and user experiences powering our commerce platform. You will collaborate with product, design, and other engineering teams to deliver secure, reliable, and scalable solutions across web and mobile, serving millions of users.

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.

Qualifications

• 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.

Responsibilities

• 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.

Skills

Java

Kotlin

Go

React

Next.js

TypeScript

Data structures

Algorithms

Cloud (AWS/GCP)

CI/CD

Observability

Education

Bachelor's degree in Computer Science, Engineering, or equivalent

Tools

AWS

GCP

CI/CD tools

Job description

QXO is seeking a Senior Software Engineer to design, build, and maintain core services and user experiences powering our commerce platform. You will collaborate with product, design, and other engineering teams to deliver secure, reliable, and scalable solutions across web and mobile, serving millions of users.

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.