Security Engineering Intern - 2027 - Seattle

Location: Washington - Seattle Campus

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business.

Here, you'll do meaningful work that helps millions of people discover, book, and experience travel with more ease, confidence, and joy. Our five Behaviors-Traveler First, Think Big, Operate with Excellence, Ownership Mindset, and Succeed Together-help foster a supportive environment where people can grow their careers and have the flexibility, benefits, and support to do their best work. Join us and build for travelers everywhere.

• Note: Applications will remain live for at least 5 business days when the role is posted. The post will be removed when application targets are met.

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business.

Here, you’ll do meaningful work that helps millions of people discover, book, and experience travel with more ease, confidence, and joy. Our five Behaviors—Traveler First, Think Big, Operate with Excellence, Ownership Mindset, and Succeed Together—help foster a supportive environment where people can grow their careers and have the flexibility, benefits, and support to do their best work. Join us and build for travelers everywhere.

By joining the Expedia Group 2027 Global Summer Internship Program as a Security Engineering Intern you’ll fully integrate into our inclusive community and gain a well-rounded experience of life at Expedia Group. Our global program offers an exciting opportunity to contribute to business-critical projects by developing your skills through tailored learning and training, providing ongoing support, and offering insightful intern-specific events to build knowledge and community. We’re building a more open world. Join us.

Internship Program Highlights

Start strong from day one: Your first week is designed to help you build connections, settle in quickly, and get set up for success through cohort orientation, support, and structured onboarding.

Learn the skills that matter: You will take part in role-specific technical and professional skills learning, delivered through a mix of in-person and virtual sessions, to help you build confidence and capability from the start.

Work on meaningful projects: Interns join Expedia Group teams and contribute to real business priorities and workstreams. At the end of the internship, you will showcase your work to team members and senior leaders.

Grow beyond your day job: Our Learning Series includes interactive workshops focused on professional development and workplace skills, with topics such as personal branding, communication, and presentation skills.

Gain exposure to leaders: Through our Leadership Series, interns take part in exclusive events with Travel Leadership Team leaders to hear about their career journeys, learn more about the business, and ask questions directly.

Build your network and community: You will join an intern cohort and take part in regular social events designed to help you build relationships, experience Expedia Group culture, and have fun along the way.

Receive dedicated mentorship: Every intern is paired with a mentor to support development, learning, and career exploration throughout the program, while also helping expand your network across Expedia Group.

Feel supported throughout the experience: Interns receive ongoing coaching and guidance from managers, team navigators, and a dedicated Emerging Talent & Careers contact, so there is always a strong support system in place.

In this role you will

Travel is so much more than simply reaching your destination. Along the journey, you'll utilize your technical skills in our agile environment to develop next-generation technologies through our web applications and e-commerce sites. You will be empowered to make an immediate impact by creating high-volume, scalable solutions and work with teams to iterate on features quickly and efficiently. From the back-end supply and database functions to new user interfaces for more than 140 branded travel sites, there is no shortage of opportunity for technical innovation at Expedia Group.

Design, implement, and test security-focused software components and services under the guidance of more experienced security engineers, contributing to well-scoped features that enhance the security posture of Expedia Group’s systems.

Deploy and manage applications and services in multi-cloud infrastructure.

Develop clean, maintainable code that follows secure coding practices, including use of input validation, proper authentication and authorization patterns, and adherence to standard security guidelines.

Participate in low-level system design, API design, and data modeling with a security lens, helping translate security and privacy requirements into technical solutions for services and applications.

Assist in identifying, reproducing, and fixing security vulnerabilities or misconfigurations by applying fundamental data structures, algorithms, and problem-solving techniques.

Collaborate with security, software engineering, and infrastructure teams to understand requirements, review designs, and support implementation of security controls, monitoring, and guardrails across services and platforms.

Learn and work with AI-driven systems, tools, or workflows used for security (such as anomaly detection, automated triage, or secure coding assistants), including safely integrating and operating AI/ML‑enabled solutions that improve detection, prevention, and response outcomes.

Minimum Qualifications: