Senior Software Engineer 5 - Consumer Lifecycle Experiences Platform

Netflix is one of the world's leading entertainment services, with over 300 million paid memberships in over 190 countries enjoying TV series, films and games across a wide variety of genres and languages. Members can play, pause and resume watching as much as they want, anytime, anywhere, and can change their plans at any time.

The Testing Tools & Infrastructure team within the Consumer Lifecycle Experiences Platform is crucial to our Commerce organization. It serves Commerce Experiences by making pre-production testing faster and more reliable. It achieves this by providing centralized platforms for distributed test execution, customer test data creation tools, flaky test analytics and management, and GenAI-powered tooling that enable fast, trustworthy pre-production feedback.

We are part of a global, diverse organization that includes people of all genders, sexual orientations, upbringings, nationalities, ages, and socioeconomic & educational backgrounds. We encourage anyone passionate about developer platforms and testing infrastructure to apply.

We are looking for an experienced Senior Software Engineer to build developer-facing infrastructure and tooling that scales to millions of test runs per month. You will design and operate language-agnostic systems - spanning distributed execution infrastructure, telemetry and GenAI-powered developer tooling that make pre-production feedback testing fast and trustworthy.

Our ideal candidate is passionate about developer productivity and thrives on the satisfaction of empowering Commerce Engineering engineers worldwide to quickly and comprehensively test their software. They are excited to leverage their experience building and maintaining automated testing and resilience platforms to provide long-term benefits.

Primary stack: Java, JavaScript/TypeScript, Python, GraphQL, GitHub Actions. You’ll work alongside test frameworks (JEST, Mocha, Playwright) through platform integration work - but you won’t author or maintain test suites yourself

* Implement and manage software solutions that provide accurate and efficient analysis of test runs

* Create and maintain tools for framework-agnostic analysis of distributed tracing tools for test runs

* Stay informed about industry trends and emerging technologies - particularly GenAI applied to developer platforms - to ensure Commerce Engineering remains at the forefront of testing infrastructure

* Develop and integrate software solutions that provide high-quality synthetic test data generation

* Integrate internal and vendor-provided distributed test execution infrastructure into engineering workflows with a focus on reliability and ease of use

* Develop the tools, frameworks and infrastructure that product engineers use to exercise frontend and backend systems - distributed tests execution, mocking, synthetic data, contract verification and performance harness

* Design and operate the systems to automatically detect, quarantine, and self-heal flaky tests - turning noise into an actionable signal for engineers, with GenAI-assisted diagnosis

* Correlate test coverage data with code changes, runtime execution, and trace data for comprehensive reporting

* Maintain a strong focus on scalability, usability, and reliability in platform design to support a growing organization of stunning engineers

* Define testing strategies in partnership with cross-functional teams - producing documentation on frameworks and troubleshooting patterns that internal teams rely on

* A stunning software engineer with experience working on developer platform, platform services, or productivity-tooling teams - energized by unblocking other engineers and amplifying their throughput

* A meticulous software designer who researches and documents technical tradeoffs clearly and concisely

* Deep understanding of distributed systems, service design, and automation platforms (CI/CD,