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About the Role
The Senior Interface Designer makes integration risk visible by identifying critical paths, tracking third-party system progress, and anticipating future production defects. This role requires owning the workstream to gain comprehensive awareness.
Responsibilities
- Own the integration catalogue from day one, producing the full interface inventory within the first two weeks of the design phase.
- Classify each interface by pattern, direction, criticality, and third-party owner, maintaining it as the single source of truth.
- Lead integration requirements workshops, extracting trigger conditions, error handling expectations, SLA requirements, and business consequences of failure.
- Produce and own all Interface Design Documents (IDDs) with sufficient precision for OIC developers.
- Drive interface prioritization and phasing, recommending development sequences based on go-live criticality, third-party readiness, and data migration dependencies.
- Escalate issues when a third-party team is blocking sign-off.
- Review and approve OIC developer builds against IDD specifications, logging formal defects.
- Distinguish design deviations from legitimate technical implementation decisions.
- Own integration UAT, designing the test plan, coordinating third-party test environment availability, and driving defect resolution to formal sign-off.
Requirements
- 4–5 years of Oracle HCM experience with proven interface design workstream ownership on at least two implementations through to UAT sign-off.
- Experience owning and managing an interface catalogue of 10+ integrations on a single engagement.
- Demonstrated developer QA experience, including reviewing built integrations against specifications, raising formal defects, and managing rework to sign-off.
- Ability to manage third-party system teams and escalate through the project governance structure when external dependencies are blocking progress.
- Ability to present integration workstream status, risk, and readiness to client IT Directors and project leadership.
Skills
- Oracle HCM
- Interface design
- Integration catalogue management
- Requirements elicitation
- Interface Design Documents (IDDs)
- Developer handoff
- Testing
- User Acceptance Testing (UAT)
- Functional integration authority
- Client IT architecture liaison
- Oracle Cloud Platform Application Integration (OIC)
- Oracle Global Human Resources Cloud Implementation
- Oracle Fusion Cloud Applications HCM Process Essentials
- Oracle ERP integration
- Third-party payroll integration
- Third-party HRIS integration
- Third-party access management system integration
- IT architecture credibility
- Third-party system management
- Integration risk communication
- IDD governance
- Workstream leadership
- Developer quality review
Location
- Singapore
- India
- Malaysia
- Australia
- Hong Kong
Work Type
- Full-time
Experience Level
- Senior
Education Level
- Oracle Cloud Platform Application Integration 2025 Professional certification
- Oracle Global Human Resources Cloud Implementation Professional certification
- Oracle Fusion Cloud Applications HCM Process Essentials certification
About the Company
- Rolling Arrays is a private equity-backed, award-winning HR Tech consulting firm and Asia Pacific's premium partner for enterprise HR digital transformation.
- Headquartered in Singapore with offices across India, Malaysia, Australia, and Hong Kong.
- Delivered more than 200 HR Transformation projects since 2009.
- Recognized as one of Singapore's Top 100 fastest-growing companies in 2025.
- Specializes in SAP SuccessFactors, Oracle HCM, and Workday across HR process design and consulting (ALIGN), technology implementation (AUTOMATE), change management and adoption (ADOPT), and managed support services (AMS).