About this role
Staff Engineer — Performance, Reliability & AI Automation at Factorial. Location: Barcelona, Catalonia, Spain. Role: defining slis, improving observability, building loadtests Requirements: Proven experience improving performance, scalability, and reliability in complex systems; defining SLIs/SLOs; observability and Datadog; load testing and benchmarking; cloud production systems; strong communication and ownership; experience with Ruby on Rails, MySQL, Kafka, GraphQL, ClickHouse, or similar. Category: Engineering Seniority: Senior Level Tools: Datadog, Ruby on Rails, TypeScript, GraphQL, MySQL, ClickHouse, Kafka Commitment: Full Time Workplace: Hybrid Languages: English