HRIS Integration Specialist

We are looking for a Senior HRIS Integration Consultant to own the technical design of every interface between SAP SuccessFactors Employee Central (EC) and its external vendors. The role sits on the HRIS team and acts as the bridge between HR data, middleware developers and vendor partners. Key Responsibilities Author and maintain technical specifications and source-to-target mappings (transformation rules, value mappings, effective dating) for all SuccessFactors inbound and outbound integrations. Write and tune EC OData and CompoundEmployee API queries, including filter logic, and translate vendor file layouts and API specifications into SuccessFactors data requirements. Plan and run unit, system integration and end-to-end tests with middleware and vendor teams, covering hires, rehires, transfers, global assignments, concurrent employment, terminations and retro changes. Debug payload, mapping and data-quality failures across SuccessFactors, SAP IS, SAP CPI and Informatica, and provide formal HRIS sign-off with documented test evidence. Own the SuccessFactors -to-ADP Celergo and ADP GlobalView mappings, validate data through SAP CPI and support GlobalView through the Data Replication Monitor (monitoring, error resolution, configuration). Design, build and maintain Integration Center jobs (CSV, EDI/stacked, OData, SOAP), including schedules, SFTP destinations, PGP encryption and monitoring. Maintain the integration inventory and data-flow diagrams. Support the Workday transition through integration requirements, mapping analysis, redesign, parallel testing and cutover. Required Qualifications Bachelor’s degree in information systems, Computer Science or equivalent experience. 8+ years in HRIS, including 5+ years on SAP SuccessFactors Employee Central integrations. Hands-on command of the EC data model: Person and Employment objects, Job Information, Compensation, MDF objects, foundation objects, picklists and effective dating. Expert use of the SuccessFactors OData and CompoundEmployee API, including query building, delta logic and API Center tools. 5+ years building and supporting SuccessFactors Integration Center jobs. Working knowledge of SAP Integration Suite (CPI) and Informatica (IICS) experience to read iFlows, trace messages and debug with developers. Experience with ADP payroll integrations: Celergo and GlobalView Fluency in XML, JSON, CSV and fixed-width formats, SFTP and PGP encryption. Experience working within Agile Frameworks. Clear written and verbal communication with HR, payroll, IT, middleware and vendor stakeholders. Preferred Qualifications SAP SuccessFactors Employee Central certification (current release). Workday Integrations exposure: EIB, Core Connectors, Workday Studio or PECI. Familiarity with JIRA ITSM for incident and change management. Prior HRIS platform migration experience, covering integration inventory, re-mapping and cutover.