Build and maintain scalable integrations connecting HRIS, ATS, payroll, CRM, and ERP systems. Develop APIs, connectors, data pipelines, and Temporal workflows while handling authentication, pagination, rate limits, schema changes, retries, and failures. Optimize data ingestion, improve customer-facing error reporting, and collaborate with Customer Success, Implementation, and engineering teams. The role also involves documentation, integration architecture, security practices, and occasional frontend work.