Staff Software Engineer, Full Stack

Overview

Design, build, and operate scalable eCommerce services and front‑end UI for millions of users.

Key Responsibilities

• ui development
• code review
• system reliability
• scalable architecture
• ecommerce services
• mentoring

Tasks

As a Staff Software Engineer on the QXO eCommerce team, you will lead the design, development, and operation of foundational commerce services. You will own complex systems from ideation through launch and drive long-term architectural evolution. You’ll 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. -Build intuitive and performant user interfaces -Write clean, efficient, and testable code -Collaborate with cross-functional teams to develop end-to-end solutions -Continuously improve operational excellence and system reliability -Contribute to shared libraries and platform components. -Lead design, architecture and code reviews. -Design, build, and operate eCommerce services -Contribute to shared design system and front-end architecture -Design and implement scalable, low-latency systems that meet performance and security requirements -Mentor junior engineers and shape engineering best practices.

Requirements

• ms/ph.d.
• 5+ years
• react
• gcp/aws
• ai/ml
• ci/cd

What You Bring

This role is ideal for engineers who are highly technical, customer-obsessed, and comfortable working in fast-paced environments with high ambiguity and high ownership. At QXO, we are redefining digital commerce. Our mission is to deliver seamless, intelligent, and scalable eCommerce experiences through next-generation software systems. Our engineering teams build distributed platforms that power critical services such as customer identity, product discovery, checkout, and personalization. If you thrive in ambiguous environments, care deeply about performance and scalability, and are driven by customer impact — we want you on our team. -Experience leading architectural designs and mentoring other engineers -MS or Ph.D. -Familiarity with AI/ML systems, including model inference pipelines, data labeling infrastructure, or real-time decisioning -Experience building commerce, checkout, identity, or personalization services at scale -Strong knowledge of data structures, algorithms, system design, and concurrency -5+ years of hands-on coding experience -Experience designing, launching, and maintaining production systems in a cloud-native environment (e.g., GCP, AWS) -Experience with modern front-end technologies and frameworks such as React, Next.js, or TypeScript -Experience in Marketing or Ad Tech -Experience with experimentation frameworks, recommendation engines, or search platforms -Experience building and developing large-scale reliable distributed systems. -Experience building responsive, accessible, and performant UIs using front-end or mobile frameworks such as React Native -Experience working with CI/CD pipelines, observability tools, and performance tuning -3+ years building scalable, distributed systems using object-oriented programming languages (Java, Kotlin, Go, etc.) -Strong verbal and written communication skills -Bachelor’s degree in computer science, engineering, or equivalent

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Benefits

This position is for full-time, direct-hire employment only. We are not engaging with staffing firms, third parties, C2C arrangements, or independent contractors at this time. In compliance with certain Pay Transparency laws, employers are required to disclose a salary range. Actual salary offers will be determined by multiple factors including but not limited to geographic location, relevant experience, knowledge, skills, other job-related qualifications, and alignment with market data and cost of labor. In addition to salary, this position is also eligible for variable compensation. -Annual performance bonus -Medical, dental, and vision insurance -Paid Time Off/Paid Sick Leave: Applicants can expect to accrue 15 days of paid time off during their first year (4.62 hours for every 80 hours worked) and increased accruals after five years of service. -Base pay range: $150,000 - $275,000 / year -Long term incentive (equity/stock) -401(k) with employer match -Employee assistance program (EAP) -Paid training and certifications -Legal assistance and identity protection -Pet insurance -PTO, company holidays, and parental leave

About Qxo

-Delivers ERP, CRM, warehouse, accounting, BI and custom tools tailored to roofing and building-material workflows. -Typical projects include optimizing estimates, inventory tracking, delivery logistics and digital supply-chain visibility. -QXO combines M&A growth—Beacon Roofing Supply makes it 2nd-largest US roofing distributor—with organic tech build-out. -Unusual fact: CEO Brad Jacobs has completed ~500 M&A deals, building industries with XPO, GXO, RXO and more.

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