Senior Software Engineer, Fullstack

QXO, Inc. (NYSE: QXO) is the largest publicly traded distributor of roofing, waterproofing, and related products, and the second largest publicly traded distributor of lumber and building materials in North America. QXO is the fastest growing company in the $800 billion building products distribution industry and plans to become the tech-enabled leader by delivering best-in-class customer satisfaction and outsized returns for its shareholders. The company is targeting $50 billion in annual revenues within the next decade through accretive acquisitions and organic growth.


What you'll do:

As a Senior Software Engineer on the QXO eCommerce team, 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.

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.

Key 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.

What you'll bring:

Qualifications & Skills

• 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.

Preferred Qualifications:

• 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.

What you'll earn

• 401(k) with employer match
• Medical, dental, and vision insurance
• PTO, company holidays, and parental leave
• Paid training and certifications
• Legal assistance and identity protection
• Pet insurance
• Employee assistance program (EAP)

QXO is an Equal Opportunity Employer. We value diversity and do not discriminate on the basis of race, color, religion, gender or sexual orientation, national origin, age, disability, or any other protected status.