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Expedia Group Logo

Principal Software Development Engineer (Full Stack) - Marketing Technology

Expedia Group

$224,000 - $313,500
Sep 17, 2025
Seattle, WA, US
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Expedia Group is looking to reinvent the future of marketing technology by building foundational systems that harness AI, automation, and large-scale distributed systems to transform how marketing is executed across their brands globally.

Requirements

  • Proven ability to design and evolve complex systems for scalability, reliability, and security
  • Strong experience with Kubernetes, AWS, and modern infrastructure practices.
  • Proficiency in multiple programming languages (Java, Python, Scala, Kotlin, or equivalent).
  • Experience with front-end frameworks (React etc) is a plus.
  • Proficiency in utilizing Vibe coding tools to maximise productivity.
  • Familiarity with applying AI/ML in production systems, or eagerness to rapidly learn and apply.
  • 12+ years of experience with Bachelor’s, 10+ years with Master’s, in software engineering or architecture including leading design of large-scale distributed systems.

Responsibilities

  • Architect and deliver core systems that enable AI-driven marketing workflows at global scale.
  • Partner with engineering, data science, and product leaders to define the platform roadmap and long-term architecture.
  • Write, review, and guide development of high-quality, reliable, and scalable software.
  • Coach engineers across multiple teams, fostering technical excellence and a culture of innovation.
  • Integrate generative AI and intelligent automation into workflows that directly reduce external spend and amplify marketing impact.
  • Ensure our systems are secure, resilient, observable, and performant under the demands of billions of transactions.
  • Influence and align with cross-functional stakeholders - from marketing to ML science — to deliver measurable value to Expedia Group brands.

Other

  • Track record of mentoring engineers, driving consensus across diverse teams, and communicating technical vision to executives.
  • Relentless focus on solving real problems, delivering measurable outcomes, and raising the bar.
  • The total cash range for this position in Seattle is $224,000.00 to $313,500.00.
  • Employees in this role have the potential to increase their pay up to $358,500.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.
  • Expedia Group is proud to offer a wide range of benefits to support employees and their families, including medical/dental/vision, paid time off, and an Employee Assistance Program.