Staff Software Engineer, Platform Engineering

Staff Software Engineer to join the Platform Engineering team to build the next generation of AI-powered testing tools and infrastructure across Snapchat’s mobile apps and multi-cloud backend services, including agent harnesses, evaluation systems, Temporal-based workflows, and telemetry-driven debugging capabilities. You will push AI-native engineering practices, design and own agent harnesses and testing infrastructure (tool design, prompt engineering, context management, output evaluation) to drive functional and load testing, architect Temporal workflows to speed bug/detect regression in CI/CD, and build telemetry layers turning raw logs into actionable hypotheses. Collaborate across teams to translate product and engineering needs into scalable platforms that reduce manual work, surface regressions earlier in CI/CD, and help engineers ship reliable software faster. You’ll advocate for availability, scalability, operational excellence, and cost management, and be part of a team building the next generation of Snapchat’s AI-powered testing tools and infrastructure. Knowledge, skills, and abilities include designing, building, and operating backend services or distributed systems at scale, on-call incident response, strong system design fundamentals, and deep observability practices. Minimum qualifications include a Bachelor’s degree (or equivalent), 9+ years of software development experience (or equivalent with advanced degrees), and experience leading complex initiatives; preferred qualifications include experience with Java, Go, Python, C++, Kubernetes, CI/CD, AI tooling, and platform/system-wide impact.