Software Development Engineer in Test

Meta is seeking a Software Development Engineer in Test to drive quality and reliability across large-scale software systems. In this role, you will design and build sophisticated test infrastructure, automated testing frameworks, and validation pipelines that enable engineering teams to ship high-quality software with confidence. You will partner closely with product and infrastructure engineers to define testability requirements, identify systemic quality gaps, and establish testing strategies that scale across complex, distributed systems. This role sits at the intersection of software engineering and quality assurance, requiring deep technical expertise in test architecture, automation, and reliability engineering.