Full Stack Software Engineer III

Expedia Expedia · Hospitality · Seattle, WA

Full Stack Software Engineer III at Expedia Group, focusing on critical production checkout applications. The role involves ensuring speed, availability, scalability, and reliability of systems at scale. Responsibilities include leading complex projects, mentoring junior engineers, applying engineering principles to improve systems, designing and developing moderately complex systems, selecting and implementing technologies, collaborating with stakeholders, writing clean code, and troubleshooting production issues. Requires 5+ years of experience with a Bachelor's degree or 3+ years with a Master's, proficiency in HTML, CSS, JavaScript, React, and Scala, and experience maintaining production software. The role is in the consumer domain, focused on engineering for a mature product.

What you'd actually do

  1. Lead complex, well-defined software engineering projects while acting as a high-performing individual contributor and mentor to more junior engineers.
  2. Apply new and advanced engineering principles to improve existing systems, code quality, performance, reliability, and observability.
  3. Design and develop moderately complex systems, ensuring software is easily testable, observable, and supportable within established SLAs.
  4. Select, design, and implement appropriate technologies, frameworks, and APIs to solve business needs across teams and business units.
  5. Collaborate proactively with peers and stakeholders across the organization to understand cross‑team dependencies and develop shared solutions.

Skills

Required

  • 5+ years of professional software development experience with a Bachelor’s degree or 3+ years of professional software development experience with a Master’s degree
  • Experience in HTML, CSS, and strong JavaScript experience.
  • Experience with React and Scala.
  • Experience maintaining and operating at least four software projects or products in production environments, including bug fixing, troubleshooting, monitoring, and operational support.
  • Experience selecting technologies to solve business problems and understanding trade‑offs between languages and platforms.
  • Experience creating APIs consumed across teams or business units.
  • Solid understanding of how projects and teams interact with other teams and align to business needs.
  • Experience testing, monitoring, debugging, and fixing issues within defined SLAs.

Nice to have

  • Demonstrated ability to share knowledge through mentoring, communities of practice, and code reviews.
  • Experience leading or clarifying code evolution through thoughtful and constructive code reviews.
  • Strong understanding of the relationship between applications, databases, frameworks, and technology platforms.
  • Ability to identify inefficiencies in code, systems, and organizational processes and suggest improvements across boundaries.
  • Experience bringing together stakeholders with varied perspectives to develop solutions.
  • Comfort working across multiple technology stacks and learning new technologies as needed.

What the JD emphasized

  • ensure Expedia Checkout is always fast, available, scalable, and engineered to withstand unparalleled demand
  • often unexpected problems of systems at scale
  • strong analytical and troubleshooting skills
  • proficiency in coding and systems design
  • solid interpersonal skills
  • desire to tackle the complex problems of scale
  • collaborative and creative individual
  • thrive in a dynamic and agile environment
  • adapt to new technologies
  • enjoy working on complex problems
  • experience maintaining and operating at least four software projects or products in production environments, including bug fixing, troubleshooting, monitoring, and operational support.
  • Experience selecting technologies to solve business problems and understanding trade‑offs between languages and platforms.
  • Experience creating APIs consumed across teams or business units.
  • Solid understanding of how projects and teams interact with other teams and align to business needs.
  • Experience testing, monitoring, debugging, and fixing issues within defined SLAs.