Software Development Engineer III, Advertising Technology

Software Development Engineer II

Expedia Group Advertising builds the platforms and experiences that connect advertisers with millions of travelers across the globe. Our mission is to help partners reach the right traveler with the right message at the right time through intuitive advertiser experiences, high‑performance ad delivery systems, and intelligent, AI‑powered optimization. We are growing our Advertiser Experience engineering team and are looking for a talented, product‑minded Software Development Engineer II who is excited to build thoughtful advertiser‑facing experiences and the backend services that power them.

You will help shape the next generation of our advertising marketplace, working at the intersection of user experience, scalable distributed systems, and generative AI.

• Implement backend APIs and services that power high‑quality UI experiences and deliver trust, transparency, and performance to our partners.
• Build and optimize services that support campaign management and optimization across Expedia Group’s advertising network.
• Improve reliability, scalability, and latency of mission‑critical systems.
• Use LLMs and generative AI to simplify advertiser workflows, improve campaign setup, and automate repetitive tasks.
• Work with data scientists and ML engineers to integrate personalized recommendations, smart defaults, and AI‑assisted decision support.
• Partner with product managers, UX designers, data scientists, and other engineering teams to deliver measurable advertiser value.
• Advocate for high‑quality code, automated testing, and strong observability practices.
• Participate in operational reviews and drive continuous improvement.
• Mentor junior engineers and help elevate the technical bar of the team.

• 5+ years of experience in backend software development, working with cloud‑based and distributed systems at scale.
• 5+ years of experience in a related technical field (Bachelor’s degree or 3+ years of equivalent professional experience; Master’s degree or 5+ years of equivalent professional experience).
• Proficiency in Java/J2EE, C#, or similar object‑oriented languages, with hands‑on experience integrating services with relational and No
  
  SQL databases.
• Experience with CI/CD pipelines, infrastructure/test automation, and delivering features in Agile development environments.
• Demonstrated experience designing and deploying scalable services in a cloud environment (e.g., AWS, Azure, GCP).

• Exposure to advertising technologies (ad serving, campaign management, RTB, auctions).
• Experience working with data‑driven systems, ML‑powered features, or experimentation platforms.
• Experience applying generative AI to product experiences and internal tools.
• Experience contributing to multiple multi‑quarter, cross‑team projects.
• Master’s degree in a related technical field.

Location:

Chicago, IL. This role requires in‑office presence at least three days a week; relocation assistance is not offered.

Pay range: $ to $, with potential for increases up to $ based on performance.

Employees receive medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and an International Airlines Travel Agent membership.

We provide accommodations for applicants with disabilities or other physical or mental health conditions. Please reach out to our Recruiting Accommodations Team if you need assistance during the application process.

Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. This employer participates in E‑Verify. The employer will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS) with information from each new employee's I‑9 to confirm work authorization.