Senior Software Engineer – Ecommerce, Equity Options

QXO; Herndon (VA); On-site; USD 138,000 - 235,000; Full time

Benefits offered by this job

Annual performance bonus

Long term incentive (equity/stock)

401(k) with employer match

Medical, dental, and vision insurance

PTO, company holidays, and parental le

Paid Time Off/Paid Sick Leave

Paid training and certifications

Legal assistance and identity

Job summary

QXO, a leading distributor and installer of building products, is seeking a Senior Software Engineer to design, build, and maintain core services for our commerce platform powering millions of users across web and mobile.

You will collaborate with product, design, and other engineering teams to deliver secure, scalable solutions, write clean code, participate in reviews, and contribute to shared libraries and design systems.

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

Algorithms

AWS/GCP

UI development

CI/CD

Collaboration

Commerce systems

AI/ML exposure

Search tech

Education

Bachelor's degree in CS/Engineering

Tools

React

Next.js

TypeScript

AWS

GCP

CI/CD tools

Observability tools

Job description

QXO, a leading distributor and installer of building products, is seeking a Senior Software Engineer to design, build, and maintain core services for our commerce platform powering millions of users across web and mobile.

You will collaborate with product, design, and other engineering teams to deliver secure, scalable solutions, write clean code, participate in reviews, and contribute to shared libraries and design systems.