Principal Software Development Engineer — Platform & Infrastructure

Principal Software Development Engineer — Platform & Infrastructure Introduction to Team

Expedia Technology teams partner with our Product teams to create innovative products, services, and tools to deliver high-quality experiences for travelers, partners, and our employees. A single technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction.

• Define the technical strategy, roadmap and standards for cloud infrastructure and platform capabilities (container runtime, orchestration, networking, CI/CD, observability, security, IaC)
• Lead migration and platform adoption efforts (containerization, Kubernetes/EKS, runtime platform) and drive roadmap execution end‑to‑end
• Be an active code and IaC contributor (Terraform/Cloud Formation/Helm, platform services, automation) and perform design/code reviews
• Design scalable, resilient, and secure infrastructure patterns for microservices, data stores, caching, and messaging
• Build and improve CI/CD pipelines, release automation, testing strategies, and safe deployment practices
• Drive SRE and observability practices: define SLOs, monitoring, tracing, alerting, runbooks, incident response, and post‑mortems
• Lead capacity planning, performance tuning, and traffic engineering for high‑scale workloads
• Own and evangelize AWS cost optimization practices (rightsizing, reserved/spot strategies, architecture changes, cost monitoring and show‑back)
• Define and enforce platform standards, security controls, environment tagging, and operational excellence practices across teams
• Mentor and grow senior and mid‑level engineers; identify high‑potential talent and raise engineering standards
• Collaborate closely with product, security, platform, and operations stakeholders to align technical solutions with business goals and compliance requirements

• 10+ years professional software engineering experience with significant hands‑on experience building and operating distributed cloud services
• Strong, demonstrable experience building and running platforms on AWS (EKS, ECS, EC2, VPC, IAM, S3, RDS, ELB/ALB, Auto Scaling)
• Deep hands‑on experience with containerization and Kubernetes at scale (EKS or comparable)
• Practical experience with infrastructure as code (Terraform, Cloud Formation) and Helm charts
• Proven record of contributing production code and platform automation (languages such as Go, Python, Java, or similar)
• Experience designing for resilience, observability, security and operational automation
• Familiarity with CI/CD tooling and developer workflows (Spinnaker, Jenkins, Git Hub Actions, Git Lab CI, or similar)
• Demonstrated ability to lead cross‑team technical initiatives and influence architectural decisions
• Strong communication skills and experience mentoring engineers

• Prior platform engineering, SRE, or infrastructure leadership at scale
• Experience with monitoring/observability stacks (Prometheus, Grafana, Datadog, Open Telemetry, Jaeger)
• Proven experience with AWS cost optimization strategies and tooling (Cost Explorer, Trusted Advisor, billing APIs)
• Knowledge of service meshes (Istio, Linkerd, VPC Lattice), API gateways, and advanced networking patterns
• Experience with security/compliance for cloud environments, secrets management, and policy‑as‑code
• Experience migrating monoliths to cloud‑native architectures

The total cash range for this position in San Jose is $ to $. Employees in this role have the potential to increase their pay up to $, 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.

Accommodation requests:
If you need assistance with any part of the application or recruiting process due to a disability, or other physical or mental health conditions, please reach out to our Recruiting Accommodations Team through the Accommodation Request.

Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. This employer participates in E‑Verify. The employer will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS) with information from each new employee’s I‑9 to confirm work authorization.