> Markdown version of [/jobs/ext/4691368-principal-software-development-engineer-loyalty](https://www.wearedevelopers.com/jobs/ext/4691368-principal-software-development-engineer-loyalty). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Development Engineer (Loyalty) - **Company:** Expedia Inc. - **Location:** San Jose, CA, United States - **Salary:** $249,000 - $348,500 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Cloud Computing, Distributed Systems, Machine Learning, Software Engineering, Systems Architecture, Information Technology, Front End Software Development - **Published:** November 12, 2026 - **Apply:** https://www.careerbuilder.com/job-details/principal-software-development-engineer-loyalty-san-jose-ca--76507f0b-a9c5-40be-a628-a1dc30c8d224 ## About the Role Software Development, Software Engineering, Willing to Travel, Advertising, Consumer Branding, Travel Industry, Business-to-Business (B2B), Technical Leadership, Machine Learning, Data Science, * Bachelor's degree in Computer Science or a related technical field, or equivalent professional experience. * 12+ years of relevant professional experience. * Demonstrated expertise in large scale system architecture, technical decision making, and delivery of complex solutions spanning multiple domains. * Strong technical depth across distributed services, cloud infrastructure, and applied AI, with particular strength in frontend architecture. * Hands on experience designing, building, and shipping AI powered products in production environments. * Proven ability to build experiences for personalization, experimentation, recommendation, loyalty, or growth platforms at scale. * Exceptional written and verbal communication skills, with the ability to explain complex AI and architectural concepts clearly to engineers, product partners, and senior leaders alike. * Ability to build alignment across teams without relying on formal authority., * Experience leading architectural transformation and modernization initiatives for large, distributed systems. * Expertise in full stack engineering with a frontend leaning, and a proven ability to operate across multiple technical domains and platforms. * A track record of championing decisions grounded in data and operational excellence for mission critical systems. * Sound judgment in weighing tradeoffs between innovation, speed, scalability, and reliability. * A collaborative, positive presence who is known for attracting strong engineers and helping them grow. The total cash range for this position in San Jose is $249,000.00 to $348,500.00. Employees in this role have the potential to increase their pay up to $398,500.00, 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.