LinkedIn has developed a unified integrations platform to standardize, reconcile, and deliver hiring data at scale. This platform supports both partner-push (BuildIn) and LinkedIn-owned pull/push (BuildOut) integration models, addressing challenges of semantic variability, entity interdependency, and operational scale. Key design principles include security, isolation, observability, unified data contracts, and idempotent, replayable, and evolvable data paths. The architecture features gateway adapters for BuildIn and BuildOut, a centralized integration core, and leverages Temporal for workflow orchestration and Kafka for streaming. This has reduced partner onboarding time by 72%, improved data coverage and completeness, and provides a unified data view for AI systems like LinkedIn's Hiring Assistant.
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