Senior Software Engineer, FE/Mobile
QXO
Listing collected from QXO's career site. NextChapter is independent of QXO.
Herndon, VA · Posted November 10, 2026
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Where Herndon, VA ranks
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November 2026
- #2Best cities for pay after cost of living in Virginia$161k · of 15
- #3Best cities for pay after cost of living in the Southeast$161k · of 33
- #3Best all-round cities for AI careers in the Mid-Atlantic86 / 100 · of 37
- #4Best cities for pay after cost of living in the Mid-Atlantic$161k · of 37
- #4Best cities for software and engineering jobs in the Mid-Atlantic441 openings · of 68
- #4Best all-round cities for mid-career professionals in the Mid-Atlantic76 / 100 · of 37
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 615 open senior software engineer listings that state pay, the middle half runs $170,500 to $222,000 and the median is $199,000.
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Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
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. For more information, visit QXO.com.
What you'll do:
As a Senior Software Engineer, 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:
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.
What you'll earn
Base pay range: $138,000 - $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
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, sex, national origin, age, disability, or any other protected status.
To comply with Pay Transparency laws, employers must disclose an annual salary range. Actual offers depend on factors such as location, experience, skills, and market data. This position may also offer variable compensation.
Please contact careers@QXO.com if you have any questions related to this job posting.
Salary Range:
USD $190,000.00 - USD $230,000.00 /Yr.
As a Senior Software Engineer, 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.
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.