Software Engineer, Wikidata Platform
Core
Backend and operations engineering for the Wikidata Query Service and platform services powering the global open knowledge ecosystem.
Role type
Senior backend/platform engineer (distributed systems)
Builds
High-scale query infrastructure, data pipelines, and platform services for Wikimedia projects and research.
Domain
Open knowledge / Knowledge graphs / Distributed systems
Deliverable
production ML models | product features | infrastructure
Required skills
Backend engineering, distributed systems, database/knowledge graph technologies, Java/C++, production-grade service operations, observability, data processing pipelines
Preferred skills
Knowledge graphs/RDF/SPARQL, streaming data systems (Kafka/Flink), CI/CD/containerization, open source communities, Wikimedia technologies
Technologies
Java, C++, Kafka, Flink, Docker, Kubernetes, graph databases, search indexes, triple stores
Responsibilities
Design and maintain backend systems and APIs for query infrastructure, improve reliability and automation of data pipelines, integrate platform services with other systems, develop features for stability and scalability, monitor production systems and resolve incidents, support platform migrations and upgrades, contribute to deployment automation and CI/CD workflows
Seniority
Senior, hands-on IC