HRIS Integration Developer

We are seeking a senior hands-on integration engineer with deep Workday expertise and strong system-agnostic integration and software engineering fundamentals.This role is responsible for designing building and troubleshooting API-driven integrations between Workday and enterprise platforms. Workday serves as the system of record while Microsoft Power Automate and other tools act as orchestration and execution layers.The ideal candidate combines:- Deep knowledge of Workday APIs data structures and business process behavior- Strong understanding of integration architecture and engineering principles that apply across any system or platformThis is not a functional HRIS role not a project manager role and not a Studio-only integration role.---Core Responsibilities- Design and implement Workday integrations using:- Workday REST APIs- Workday SOAP APIs Web Services- Workday data model and business process logic- Construct and troubleshoot:- XML payloads and API requests- API responses and error handling- Authentication security and integration context- Build integrations that follow sound engineering principles:- Explicit validation prior to write-back- Deterministic execution and predictable outcomes- Robust error handling and retry strategies- Full observability including logging and audit trails- Diagnose integration issues by analyzing:- Raw API request and response data- Workday Business Process state and configuration- Data integrity and sequencing issues across systems- Partner with engineering teams to support orchestration patterns using tools such as:- Power Automate- API layers- Workflow and automation platforms- Ensure integrations respect system boundaries:- Workday enforces business rules and approval flows- External systems orchestrate not override system-of-record logic---Required Technical Expertise Non-Negotiable- 4 years hands-on Workday integration experience- Strong expertise in:- Workday SOAP APIs Web Services- Workday REST APIs- Workday data model and object relationships- Workday Business Process-controlled API behavior- Proven ability to:- Construct API requests manually when needed- Troubleshoot failures at the request/response level- Debug integrations without relying on Studio abstraction layers- Strong understanding of:- XML structure namespaces and schema validation- Integration security ISU ISSG- Authentication and API connectivity patterns---System-Agnostic Integration Engineering RequirementsCandidates must demonstrate strong fundamentals in integration and software engineering including:- Designing integrations that are:- Deterministic and predictable- Resilient to failure- Observable and auditable- Understanding of core integration patterns:- API-driven architecture- Request/response vs event-driven models- Orchestration vs system-of-record responsibility