Senior Software Development Engineer, Advertising Technology

Expedia Group • Chicago, IL

8d

About The Position

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.

Requirements

• 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.

Nice To Haves

• 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

Responsibilities

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

Benefits

• 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
• medical/dental/vision
• paid time off
• Employee Assistance Program
• wellness & travel reimbursement
• travel discounts
• International Airlines Travel Agent (IATAN) membership

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level