Senior Software Engineer

QXO; Seattle (WA); On-site; USD 170,000 - 235,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) with employer match

PTO and holidays

Paid training and certifications

Job summary

QXO is redefining digital commerce with high-quality software powering customer identity, product discovery, checkout, and personalization. Senior Software Engineer applicants will design, build, and maintain core services and experiences used by millions across web and mobile.

The role emphasizes collaboration, performance, and scalable systems, with growth in a fast-paced environment and opportunities to influence product direction.

Qualifications

• 3-5 years of professional software engineering experience.
• Proficiency in one or more OO languages (Java, Kotlin, Go).
• Experience with modern front-end technologies (React, Next.js, TypeScript).
• Strong understanding of data structures and algorithms.
• Experience building production cloud-based systems (AWS, GCP).
• Bachelor’s degree in CS, Engineering, or equivalent practical experience.

Responsibilities

• Design, develop, and maintain eCommerce services and user interfaces.
• Implement scalable, low-latency systems with security in mind.
• Build intuitive and performant front-end experiences.
• Collaborate with cross-functional teams to deliver end-to-end features.
• Write clean, tested code and participate in design reviews.
• Support reliability and operational excellence of systems.
• Contribute to shared libraries and platform components.

Skills

Java/Kotlin/Go

React/Next.js/TypeScript

Data structures & algorithms

Cloud (AWS/GCP)

Collaborative communication

Education

Bachelor's degree in Computer Science or related field

Job description

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.

Position Summary

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.

Qualifications & Skills

• 3-5 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.

More About QXO

QXO is the largest publicly traded distributor of roofing, waterproofing, and complementary building products in the United States. The company plans to become the tech-enabled leader in the $800 billion building products distribution industry and generate outsized value for shareholders. QXO is targeting $50 billion in annual revenues within the next decade through accretive acquisitions and organic growth. Visit www.qxo.com for more information.

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.

What You'll Earn

• Base pay range: $170,000 - $235,000
• Annual performance bonus
• Long term incentive (equity/stock)
• 401(k) with employer match
• Medical, dental, and vision insurance
• PTO, company holidays, and parental leave
• 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.
• Paid training and certifications
• Legal assistance and identity protection
• Employee assistance program (EAP)

QXO is an Equal Opportunity Employer.

We value diversity and do not discriminate on the basis of race, color, religion, sex, national origin, age, disability, or any other protected status.

• 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.