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PrincipalSoftware Engineer, Observability

Introduction to the Team:

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

As a Principal Engineer, you will be part of an agile development team with deepexpertisein cloud, distributed systems, and observability. You will play a pivotal role in craftingthe strategictechnical goals for our group. The main effort will involve leading the architecture, design, and implementation of a centralized, scalable, and cost-effective observability platform used by all engineering teams across Expedia.

You will provide technical leadership for a dynamic engineering organization and work alongside talented product managers and other technical leaders to deliver best-in-class capabilities to our developer community.

In this role, you will:

• Architect and Build Core Telemetry Pipelines: Lead the design and implementation of highly scalable and resilient telemetry pipelines for logs, metrics, and traces. Evolve our platform to handle a 10x increase in data volume whilemaintainingperformance and cost-effectiveness

• DriveOpenTelemetryAdoption: Spearhead the strategy, rollout, and support for theOpenTelemetrycollector across thousands of services. Develop best practices and automated configurations to ensure seamless and consistent data collection

• Implement Platform Governance and Optimization: Design and build capabilities for data governance, cost allocation, and resource management within the observability platform. Define and implement SLOs for the platform itself and create tools to help teams manage their observability costs

• Elevate the Practice of Observability: Act as a thought leader, driving the adoption of observability best practices across the engineering organization. Improve the developer experience by unifying tooling (e.g., Grafana, Datadog, Splunk),documentation, and service lifecycle management within our internal developer portal

• Automate Infrastructure Lifecycle: Author andmaintainproduction-grade Infrastructure as Code (IaC) using tools like Terraform and/orCrossplane.Eliminatemanual toil by automating cluster provisioning, dependency upgrades, and incident remediation workflows

• Technical Leadership and Mentorship: Act as a force multiplier. Mentor senior engineers on the team, lead architecture review sessions, and author RFCs to build consensus on significant technical decisions. Your influence will extend beyond the team to application developers and SREs

• Production Debugging: Serve as the final escalation point for complex, cross-cutting production incidents related to the observability platform, from telemetry agent bugs to data correlation failures in our distributed systems

• Collaborate and Innovate: Explore andutilizea wide variety of technologies and tools, such as (but not limited to) Go, Java, Python, AWS, Kubernetes,OpenTelemetry, Prometheus, Grafana, Datadog, and Splunk,Clickhouse

Minimum Qualifications:

• Bachelor's orMaster's degree in Computer Scienceor a related technical field, or equivalent practical experience

• 10+ years of experience in software engineering, with a focus on building andoperatinglarge-scale distributed systems, infrastructure automation, or configuration management

• Deepexpertisein observability principles and the "three pillars": logs, metrics, and traces

• Strong hands-onproficiencywith observability technologies such as Prometheus, Grafana, Datadog, Splunk, andOpenTelemetry

• Proficientin one or more of: Go, Java, Python

• Solid understanding of cloud-native architectures (Kubernetes, Docker, microservices) and major cloud platforms (AWS preferred)

Preferred Qualifications:

• Experience designing, building, andoperatinghighly available, scalable, and resilient platforms

• Excellent hands-on coder who understands and appreciates bigger-picture architectural and business concerns

• Clear communicator with the ability to concisely explain complex technical details to a wide variety of audiences in both verbal and written form

• A creative problem solver who uses data and insights to support recommendations and influence decisions

• Experience mentoring other senior engineers andestablishingstandards for operational excellence and code quality at a multi-project level