Principal Software Engineer — AI-Driven Payments Platform

Traveltechessentialist; Austin (TX); On-site; USD 231,000 - 324,000; Full time

Job summary

Expedia Group in Austin is seeking a Principal Software Development Engineer to lead design and delivery of highly scalable payments and platform services. You will mentor engineers, set technical direction, and influence decisions across the technology ecosystem, with a focus on reliability and performance in a fast-paced environment.

You will shape architecture, drive API design, and apply AI/ML concepts to real-world travel payments products, impacting millions of customers worldwide.

Qualifications

• Bachelor’s degree in Computer Science or related field or equivalent experience.
• 10+ years of professional engineering experience.
• Proven leadership across complex initiatives spanning multiple systems or domains.
• Expertise in system design, large-scale architecture, API design, and data modeling.
• Familiarity with AI-driven systems and applying AI/ML concepts.

Responsibilities

• Lead design and implementation of complex, scalable software systems across domains.
• Drive architectural decisions ensuring reliability and maintainability.
• Mentor and develop engineering teams while elevating technical excellence.
• Champion AI/ML-enabled solutions that improve outcomes.
• Collaborate with stakeholders to define technical solutions and business impact.
• Guide adoption of modern development methodologies and robust data modeling.

Skills

Large-scale system design

API design

Data modeling

AI/ML concepts

Leadership

Education

Bachelor’s degree in Computer Science or related field

Tools

Distributed systems

Microservices

API design tooling

Job description

Expedia Group in Austin is seeking a Principal Software Development Engineer to lead design and delivery of highly scalable payments and platform services. You will mentor engineers, set technical direction, and influence decisions across the technology ecosystem, with a focus on reliability and performance in a fast-paced environment.

You will shape architecture, drive API design, and apply AI/ML concepts to real-world travel payments products, impacting millions of customers worldwide.