Software Development Engineer III - Full Stack

Expedia Group

$146K — $204K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science, Engineering, or related field, or equivalent experience.
  • 5+ years of building and operating production software services and full-stack applications.
  • Proven ownership of services with responsibility for design, implementation, quality, and deployment.
  • Proficiency in software engineering fundamentals, including data structures and algorithms.
  • Hands-on experience with modern web technologies and familiarity with AI-driven tools.

Responsibilities

  • Design, build, and evolve full-stack services and customer experiences.
  • Implement high-quality frontend and backend code for maintainability and operational excellence.
  • Collaborate with cross-functional teams to translate requirements into technical solutions.
  • Own and improve the end-to-end lifecycle of services and features.
  • Apply data-driven approaches to optimize performance and user experience.
  • Integrate AI/ML solutions to enhance product capabilities.

Benefits

  • Medical, dental, and vision coverage.
  • Paid time off and wellness reimbursement.
  • Travel discounts and IATAN membership.
  • Employee Assistance Program focused on mental health and well-being.
Full Job Description
Introduction to the Team

The Supply team builds and scales partner-facing technology that helps our partners succeed across the Expedia Group platform. We work at the intersection of product, engineering, and business operations to deliver reliable, high-impact solutions that improve partner experiences, enable growth, and support strategic initiatives across a global ecosystem.

Our team values strong ownership, technical excellence, collaboration, and customer focus. We solve complex problems at scale, move quickly with purpose, and partner closely with cross-functional teams to deliver meaningful outcomes. Joining Supply means working on products and platforms that directly influence partner success and contribute to Expedia Group's broader mission.

In this role, you will:
  • Design, build, and evolve full-stack services and customer experiences, including system design (LLD), API design, and data modeling for scalable, secure, and reliable solutions.
  • Implement high-quality frontend and backend code, ensuring maintainability, observability, and operational excellence across multiple services and domains.
  • Collaborate with product, design, and partner engineering teams to translate business and customer requirements into robust technical solutions that can be reused across use cases.
  • Own and improve the end-to-end lifecycle of services and features, including development, automated testing, deployment, monitoring, and incident resolution.
  • Apply data-driven approaches to prioritize work, validate hypotheses, and continuously optimize system performance, reliability, and user experience.
  • Safely integrate and operate AI/ML-enabled solutions that improve outcomes, including familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products.


Minimum Qualifications:
  • Bachelor's degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience in software development.
  • 5+ years of professional experience building and operating production software services and full-stack applications (frontend and backend) within a team environment.
  • Proven ownership of services or components, including responsibility for design, implementation, quality, deployment, and operational health within a product or domain area.
  • Proficiency in core software engineering fundamentals, including data structures, algorithms, system design (LLD), API design, and data modeling, with experience applying these in real systems.
  • Hands-on experience with modern web technologies, frameworks, and service architectures, and familiarity with using AI-driven tools or workflows to enhance developer productivity or product capabilities.


Preferred Qualifications:
  • Experience designing and evolving multi-service or multi-component architectures, including well-structured APIs, data models, and integration patterns across systems.
  • Demonstrated track record driving technical improvements at scale, such as performance tuning, resilience hardening, or reliability engineering for high-traffic services and user interfaces.
  • Strong focus on operational excellence, including instrumentation, observability, alerting, and participation in on-call or incident response to improve long-term service health.
  • Ability to leverage experimentation, A/B testing, or analytics to make informed technical and product decisions and to validate the impact of delivered features.
  • Experience integrating or extending AI/ML-enabled capabilities in applications or services, including responsible use of AI-driven components in full-stack solutions and guiding teams on effective, safe adoption of AI tooling.


The total cash range for this position in Seattle is $146,000.00 to $204,500.00. Employees in this role have the potential to increase their pay up to $233,500.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.

Starting pay for this role will vary based on multiple factors, including location, available budget, and an individual's knowledge, skills, and experience. Pay ranges may be modified in the future.

Benefits and perks

Expedia Group offers benefits and perks designed to support employees and their families, including medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and International Airlines Travel Agent Network (IATAN) membership. Learn more about life at Expedia Group at https://careers.expediagroup.com/life.

Accommodation requests

Expedia Group is committed to providing an inclusive and accessible recruiting experience. If you need an accommodation or adjustment due to a disability during the application or recruiting process, please submit a request at https://expedia.service-now.com/askeg?id=job_accommodation.

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