Staff Backend Engineer, Ads Platform

Responsibilities

• Own architecture across critical Ads services, including ad selection, targeting, pacing, delivery, attribution, and measurement.
• Design high-throughput, low-latency distributed systems with appropriate partitioning, caching, consistency, concurrency, and performance strategies.
• Build for reliability, resilience, and operational excellence under partial failures, traffic spikes, and downstream degradation.
• Establish metrics, tracing, SLOs, alerting, structured logging, capacity planning, and incident-response practices.
• Evolve event-driven and data-intensive architectures spanning transactional and non-transactional stores, streaming, messaging, caching, and real-time processing.
• Set backend, reliability, and performance standards adopted by multiple teams.
• Lead refactoring, migration, and system-health initiatives and build reusable infrastructure and patterns.
• Define and deliver multi-quarter technical initiatives across Ads, Platform, Data, and ML.
• Resolve ambiguous reliability, performance, and scalability problems spanning multiple teams.
• Mentor senior engineers, lead technical design reviews, and raise engineering standards.

Requirements

• Proven experience designing, building, and operating distributed backend systems at significant production scale.
• Deep understanding of partitioning, replication, consistency, caching, concurrency, asynchronous processing, failure isolation, and coordination.
• Strong experience diagnosing performance and scaling issues across applications, databases, caches, queues, networks, and infrastructure.
• Expertise in API design, service boundaries, event-driven architectures, streaming, messaging, distributed stores, and caching.
• Experience owning architecture for complex distributed systems, including scalability planning, performance optimization, failure modes, and long-term evolution.
• Experience building highly reliable production systems with comprehensive observability.
• Ability to evaluate tradeoffs involving scalability, reliability, latency, consistency, operational cost, complexity, and developer productivity.
• Ability to translate ambiguous product and technical problems into clear, executable direction.

Compensation & Benefits

• Full-time role available from US offices or remotely in the United States.