Senior Software Development Engineer, Advertising Technology

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success.

Why Join Us?

To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win.

We provide a full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We’re building a more open world. Join us.

Senior Software Development Engineer: Full-stack

Our Technology Team partners with teams across Expedia Group to create innovative products, services, and tools to deliver high-quality experiences for travelers, partners, and our employees. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction.

We are the Expedia Group Advertising team - as a global leader in travel industry advertising, we connect advertisers with millions of travelers. We are seeking a talented and results-driven Sr. Software Development Engineer, Advertising Technology. In this role, you will work with a team of dedicated engineers to develop and enhance our next-generation advertising suite of products. Your technical expertise and collaborative approach will help deliver impactful solutions for advertisers and travelers worldwide. As a Sr. Software Development Engineer, you will play a critical role in building and scaling high-performance systems that support Expedia Group’s expanding advertising network. Your focus will be on designing innovative solutions, driving operational excellence, and contributing to the success of a collaborative engineering team.

In this role, you will:

• Design and Develop: Create architecture designs and implement scalable, reliable, high-performance systems that power advertisers’ campaigns across platforms

• Enhanc e Advertiser Experience: Measure and optimize performance to increase efficiency and improve advertiser’s experience with our services

• Champion developer experience : Influence the architecture and evolution of our B2B platforms by evaluating and improving internal frameworks and development patterns that enables higher efficiency across the organization

• Innovate Continuously: Stay informed on industry trends and emerging technologies in advertising technology, identifying opportunities to integrate new approaches and improve our platform. Integrate and operate AI/ML‑enabled solutions to enhance product capabilities and improve operational outcomes

• Collaborate Cross-Functionally: Work closely across organizations including product, operations, and other engineer teams to deliver value to advertisers

• Team Excellence: Contribute to a culture of technical excellence, collaboration, and continuous improvement within the engineering team. Mentor and provide guidance to junior engineers, helping them grow their technical skills and advance their careers

Minimum Qualifications:

• Bachelor’s degree in Computer Science or a related technical field; or Equivalent related professional experience.

• 8+ years of relevant professional experience.

• Experience as a software development engineer building and operating production systems, including ownership of services or applications that support multiple features or components in a larger product ecosystem.

• Proficiency in full-stack development, including backend services, RESTful or graph-based APIs, data modeling for transactional and/or analytical use cases, and modern web front-end technologies.

• Familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products.

Preferred Qualifications:

• Experience designing and evolving high‑scale, low‑latency Ad-tech or similar data‑intensive systems (such as bidding, targeting, or personalization engines), including thoughtful system and API design and well-structured data models.

• Track record of technical leadership in complex projects, such as leading design reviews, driving architectural improvements across multiple services, and setting engineering best practices for a product area or domain.

• Deep experience with observability, performance tuning, and operational excellence for distributed services, including progressive delivery, automated testing, and robust monitoring in production.

• Safely integrates and operates AI/ML‑enabled solutions that improve outcomes, such as enhancing targeting quality, optimizing campaign performance, or automating operational workflows, with an understanding of their trade‑offs and risks.

• Advanced proficiency in applying AI‑assisted development tools to improve code quality

The total cash range for this position in Chicago is $171,500.00 to $240,000.00. Employees in this role have the potential to increase their pay up to $274,500.00, 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.

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. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits .

Accommodation requests

If you need assistance with any part of the application or recruiting process due to a disability, or other physical or mental health conditions, please reach out to our Recruiting Accommodations Team through the Accommodation Request .

We are proud to be named as a Best Place to Work on Glassdoor in 2024 and be recognized for award-winning culture by organizations like Forbes, TIME, Disability:IN, and others.

Expedia Group's family of brands includes: Brand Expedia®, Hotels.com®, Expedia® Partner Solutions, Vrbo®, trivago®, Orbitz®, Travelocity®, Hotwire®, Wotif®, ebookers®, CheapTickets®, Expedia Group™ Media Solutions, Expedia Local Expert®, CarRentals.com™, and Expedia Cruises™. © 2024 Expedia, Inc. All rights reserved. Trademarks and logos are the property of their respective owners. CST: 2029030-50

Employment opportunities and job offers at Expedia Group will always come from Expedia Group’s Talent Acquisition and hiring teams. Never provide sensitive, personal information to someone unless you’re confident who the recipient is. Expedia Group does not extend job offers via email or any other messaging tools to individuals with whom we have not made prior contact. Our email domain is @expediagroup.com. The official website to find and apply for job openings at Expedia Group is careers.expediagroup.com/jobs .

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, veteran status, or any other characteristic protected by law. 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.