Principal Software Development Engineer, AdTech

ENGINEERINGUK; San Francisco (CA); On-site; USD 242,000 - 339,000; Full time

Job summary

An established industry player seeks a Principal Software Development Engineer to lead the development of innovative advertising technology. This role offers a unique opportunity to design and build core adtech systems that enhance the travel experience for users worldwide. You will leverage your deep technical expertise to mentor engineers, drive innovation, and collaborate with cross-functional teams. Join a diverse and inclusive community that values your contributions and offers exciting travel perks, generous time off, and flexible work options. If you are passionate about shaping the future of travel advertising, this is the opportunity for you.

Benefits

Comprehensive benefits

Exciting travel perks

Generous time off

Parental leave

Flexible work options

Career development resources

Qualifications

• 10+ years of software engineering experience in advertising and auction systems.
• Proven experience in designing scalable, high-performance auction systems.

Responsibilities

• Lead design and development of scalable auction systems with optimal performance.
• Define technical requirements and collaborate on auction features.

Skills

Software Engineering

Java

C++

Advertising Technology

Real-Time Bidding

Machine Learning

Data-Driven Decision Making

Communication Skills

Education

Master's in Computer Science

Ph.D. in Computer Science

Job description

You will need to login before you can apply for a job.

Principal Software Development Engineer, AdTech

Employer: Expedia Group | Location: San Francisco, California, United States | Salary: USD 242,000 - 338,500; potential to increase to USD 387,000 based on performance | Closing date: 7 Jun 2025

Sector: Engineering | Role: Professional | Contract Type: Permanent | Hours: Full Time

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge technology to make travel smoother and more memorable, creating innovative solutions for our partners. Our diverse and welcoming community is key to our success.

Why Join Us?
We foster an open culture where everyone belongs, differences are celebrated, and success is shared. We offer comprehensive benefits, exciting travel perks, generous time off, parental leave, flexible work options, and career development resources, fueling our passion for travel and rewarding careers. Join us to help build a more open world.

Role Overview: Principal Software Development Engineer, Ad Tech

Team Introduction
Our Advertising group is seeking a seasoned Principal Software Development Engineer to lead the development of our next-generation advertising marketplace. You will bring deep technical expertise in advertising, leadership skills, and a passion for creating efficient solutions. Expedia's Advertising is a global leader in travel industry advertising. You will design and build core adtech systems, collaborate with cross-functional teams, mentor engineers, and set technical strategies.

This role oversees all advertising technology within Expedia, working across various products and locations, reporting directly to the Ads Technology leader. It offers a unique opportunity to drive innovation, growth, and efficiency in our advertising tech landscape.

Key Responsibilities

• Lead design and development of scalable auction systems with optimal performance and low latency
• Define technical requirements and collaborate with teams on auction features
• Develop algorithms for bidding, pricing, and real-time decisions
• Stay updated on industry trends and incorporate innovative approaches
• Provide technical leadership and mentorship
• Lead code reviews and architectural discussions
• Work with stakeholders to translate business needs into technical solutions
• Optimize system performance and reliability

Qualifications

• Minimum 10 years of software engineering experience, especially in advertising and auction systems
• Proven experience in scalable, high-performance auction system design
• Proficiency in Java or C++, understanding of software design principles
• Deep knowledge of advertising tech, including real-time bidding and OpenRTB
• Experience with data-driven decision-making, machine learning, and analytics
• Excellent communication skills
• Experience with inventory management forecasting models
• Knowledge of ad measurement and attribution systems
• Master's/Ph.D. in Computer Science or related field, or equivalent experience

If you're passionate about advertising technology and ready to lead innovation, apply now to shape the future of travel advertising.

Note: Compensation varies based on multiple factors, and pay ranges may be updated in the future.

Additional Information
We support candidates requiring accommodations during the application process. Expedia Group is committed to diversity and inclusion and participates in E-Verify. For more info, visit our careers page.