Senior Software Engineer, FE/Mobile

QXO

$138K — $235K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 2-5 years of software engineering experience.
  • Proficiency in object-oriented programming languages (e.g., Java, Kotlin, Go).
  • Experience with modern front-end technologies (React, Next.js, TypeScript).
  • Strong understanding of data structures, algorithms, and software design principles.
  • Experience in cloud environments (AWS, GCP).
  • Bachelor's degree in Computer Science, Engineering, or equivalent experience.
  • Strong collaboration and communication skills.

Responsibilities

  • Design, develop, and maintain eCommerce services and user interfaces.
  • Implement scalable, low-latency systems for performance and security.
  • Build intuitive and performant front-end experiences.
  • Collaborate with cross-functional teams for end-to-end product features.
  • Write clean, efficient, and testable code.
  • Participate in design and code reviews.
  • Support continuous improvement of system reliability.

Benefits

  • 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 training and certifications
  • Employee assistance program (EAP)
Full Job Description
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)


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 [email protected] if you have any questions related to this job posting.

Salary Range:

USD $138,000.00 - USD $235,000.00 /Yr.

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