Staff Software Engineer, Fullstack

About the role

QXO is a leading distributor and installer of building products serving an $800 billion market. The company’s mission is to modernize the building products industry through advanced technology and a best-in-class customer experience. QXO is North America’s largest distributor and installer of insulation, the second-largest distributor of roofing products, the second-largest publicly traded distributor of lumber and building materials, and the largest distributor of waterproofing products. The company is targeting $50 billion in annual revenue within the decade through accretive acquisitions and organic growth.

Responsibilities

• Lead the design, development, and operation of foundational commerce services.
• Own complex systems from ideation through launch and drive long-term architectural evolution.
• Collaborate across engineering, product, and design teams to build secure, reliable, and extensible services and user interfaces that serve millions of users across web and mobile platforms.

Qualifications & Skills

• 5+ years of hands-on coding experience
• 3+ years building scalable, distributed systems using object-oriented programming languages (Java, Kotlin, Go, etc.)
• Experience with modern front-end technologies and frameworks such as React, Next.js, or TypeScript
• Strong knowledge of data structures, algorithms, system design, and concurrency
• Experience building and developing large-scale reliable distributed systems
• Experience designing, launching, and maintaining production systems in a cloud-native environment (e.g., GCP, AWS)
• Experience leading architectural designs and mentoring other engineers
• Bachelor’s degree in computer science, engineering, or equivalent
• Strong verbal and written communication skills
• Preferred: Experience building commerce, checkout, identity, or personalization services at scale
• Preferred: Experience building responsive, accessible, and performant UIs using front-end or mobile frameworks such as React Native
• Preferred: Familiarity with AI/ML systems, including model inference pipelines, data labeling infrastructure, or real-time decisioning
• Preferred: Experience with experimentation frameworks, recommendation engines, or search platforms
• Preferred: Experience working with CI/CD pipelines, observability tools, and performance tuning
• Preferred: Experience in Marketing or Ad Tech

Benefits

• 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)

Pay

Salary Range: USD $180,000.00 - USD $250,000.00 /Yr.