Oracle Interface Designer - Consultant

📍 Job Overview

Job Title: Oracle Interface Designer - Consultant

Company: Rolling Arrays - Consulting

Location: Singapore, Singapore

Job Type: Full-Time

Category: Revenue Operations / Sales Operations / GTM Operations (Focus on Integration Design)

Date Posted: May 18, 2026

Experience Level: 2-5 Years

Remote Status: Hybrid

🚀 Role Summary

• Design and document complex HR data integrations between Oracle HCM and various third-party systems, ensuring precision and clarity for development teams.

• Elicit detailed integration requirements, including triggers, frequency, error handling, and business consequences, through structured workshops with client HR and IT stakeholders.

• Develop comprehensive Interface Design Documents (IDDs) that serve as definitive guides for developers, minimizing the need for clarification and rework.

• Validate built integrations against IDD specifications, collaborating with OIC developers to ensure adherence and manage deviations effectively.

• Create and execute robust integration test cases, covering positive, negative, and volume scenarios, to drive defects to resolution and ensure data integrity.

📝 Enhancement Note: While the role is functional, the emphasis on "developer-usable" specifications and "IDD precision" positions this as a critical GTM Operations function, directly impacting the success of HR technology implementations and thus the efficiency of Go-To-Market strategies that rely on accurate HR data. The role requires a deep understanding of how HR data flows impact business operations and client success.

📈 Primary Responsibilities

• Lead integration requirements elicitation workshops, guiding client stakeholders to articulate detailed specifications beyond basic data mapping.

• Produce complete and precise Interface Design Documents (IDDs) for all in-scope integrations, detailing source/target systems, triggers, frequency, field-level mapping with transformation rules, error handling, volume estimates, and reconciliation methods.

• Map Oracle HCM data objects (e.g., Core HR, Absence, Payroll, Talent modules) to target system fields, identifying and documenting any attribute gaps.

• Collaborate closely with Oracle Integration Cloud (OIC) developers to validate that built integrations precisely match the IDD specifications, raising and managing defects for any discrepancies.

• Develop and execute comprehensive integration test cases, including positive, negative, and volume scenarios, and actively participate in driving identified defects to timely resolution.

• Maintain a live, up-to-date interface inventory throughout the engagement, serving as a single source of truth for all integration details.

• Support the broader HR digital transformation initiatives by ensuring seamless and accurate data exchange between critical HR systems.

📝 Enhancement Note: The responsibilities highlight a proactive and detail-oriented approach to integration design, crucial for GTM operations where data accuracy and timely flow are paramount for sales, marketing, and service delivery. The emphasis on "developer-usable" specifications and rigorous testing directly translates to reduced implementation cycles and improved operational efficiency.

🎓 Skills & Qualifications

Education:

• Bachelor's degree in Information Technology, Computer Science, Business Administration, or a related field.

Experience:

• 2-3 years of functional experience with Oracle HCM or other HRIS systems, specifically including exposure to integration design on at least one implementation project.

Required Skills:

• Oracle HCM Data Model: Strong understanding of data structures across Core HR, Absence Management, Payroll, and Talent modules, with knowledge of available integration points (REST API, HCM Extract, SOAP services).

• Interface Design Documentation (IDD): Proven ability to create precise, detailed IDDs that enable developers to build integrations with minimal clarification.

• Requirements Elicitation: Skill in conducting workshops to capture comprehensive integration requirements, including triggers, frequency, error handling, and business impact.

• Integration Testing: Experience in developing and executing integration test cases (positive, negative, volume scenarios) and driving defect resolution.

• Developer Collaboration: Ability to communicate effectively with OIC or middleware developers, understanding their technical needs from functional specifications.

• HRIS/HCM Functional Knowledge: Solid grasp of HR business processes and how they translate into system integrations.

Preferred Skills:

• Oracle Global Human Resources Cloud Implementation Professional certification.

• Oracle Cloud Platform Application Integration 2025 Professional (OIC certification).

• Hands-on experience with Oracle HCM Extracts, including reading extract definitions and specifying outbound extract requirements.

• Familiarity with data transformation rules and code conversions within integration contexts.

• Experience with data reconciliation methods for integrated systems.

📝 Enhancement Note: The preferred qualifications, particularly OIC certification and specific Oracle HCM implementation credentials, indicate a strong emphasis on technical depth and specialized expertise within the Oracle ecosystem, which is highly valued in GTM operations for ensuring system compatibility and efficiency.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Interface Design Documents (IDDs): Showcase examples of meticulously crafted IDDs that clearly define field mappings, transformation rules, error handling, and reconciliation for various integration scenarios.

• Process Flow Diagrams: Include diagrams illustrating data flow logic between Oracle HCM and third-party systems, highlighting key decision points and transformation steps.

• Integration Test Cases: Present examples of comprehensive test cases, demonstrating coverage of positive, negative, and edge scenarios, along with documented results and defect tracking.

• Requirements Traceability Matrix: Demonstrate how requirements were traced from initial elicitation through design, development, and testing phases.

• Case Studies of Integration Success: Highlight specific examples where your interface design work led to successful, efficient, and error-free integrations, quantifying impact where possible (e.g., reduced defect cycles, faster UAT).

Process Documentation:

• Workflow Design & Optimization: Showcase your approach to designing and optimizing integration workflows, ensuring efficiency and scalability.

• Implementation & Automation: Provide evidence of how your detailed specifications facilitated smooth integration development and automation by technical teams.

• Measurement & Performance Analysis: Demonstrate how you contributed to defining metrics for integration performance and participated in post-implementation analysis.

📝 Enhancement Note: A strong portfolio for this role must emphasize the precision and completeness of design artifacts, showcasing how detailed documentation directly leads to efficient implementation and reduced operational friction. Quantifiable results from previous projects, such as reduced defect resolution times or accelerated testing phases, will be highly impactful.

💵 Compensation & Benefits

Salary Range:

Based on industry benchmarks for experienced functional consultants with specialized integration skills in Singapore, and considering the "Consultant" level role, a competitive salary range would typically be between SGD 75,000 - SGD 100,000 per annum. This estimate is based on analysis of similar roles in Singapore's HR Tech consulting sector, factoring in the demand for Oracle HCM and integration expertise, and the cost of living in Singapore.

Benefits:

• Comprehensive Health Insurance: Medical, dental, and vision coverage for employees and eligible dependents.

• Professional Development: Opportunities for certifications (e.g., Oracle), training, and attendance at industry conferences.

• Performance Bonuses: Potential for performance-based bonuses tied to project delivery and client satisfaction.

• Paid Time Off: Generous annual leave, sick leave, and public holidays.

• Hybrid Work Model: Flexibility to balance remote work with in-office collaboration.

• Retirement Savings Plan: Contributions to a national or company-sponsored retirement fund.

• Employee Assistance Program (EAP): Support services for personal and professional well-being.

Working Hours:

The standard working hours are approximately 40 hours per week. While a hybrid model is offered, there may be expectations for flexibility to meet project deadlines, client needs, and critical integration testing phases, particularly during implementation cycles.

📝 Enhancement Note: The salary estimate is derived from publicly available compensation data for IT and HR Tech consultants in Singapore. The benefits listed are standard for professional services firms in the region and are tailored to support continuous learning and well-being, which are critical for demanding consulting roles.

🎯 Team & Company Context

🏢 Company Culture

Industry: HR Technology Consulting, specializing in enterprise HR digital transformation.

Company Size: Rolling Arrays is described as a private equity-backed firm with offices across Asia Pacific, indicating a mid-to-large size organization with substantial project delivery capacity. This size suggests a structured environment with opportunities for specialization while maintaining a collaborative feel.

Founded: 2009. This provides a decade+ of experience in the HR Tech space, signifying established processes and a proven track record.

Team Structure:

• Specialized Workstreams: The company likely organizes teams around specific service lines (ALIGN, AUTOMATE, ADOPT, AMS) and technology platforms (SAP SuccessFactors, Oracle HCM, Workday). The Interface Designer would be part of the 'AUTOMATE' workstream, focusing on technology implementation.

• Project-Based Hierarchy: Teams are typically structured around client engagements, with clear reporting lines from Consultant to Senior Consultant, Lead Consultant, and Solution Architect, culminating in a Practice Lead or Project Manager.

• Cross-Functional Collaboration: Close collaboration is essential between functional consultants (like the Interface Designer), OIC developers, change management specialists, and client HR/IT stakeholders to ensure holistic project success.

Methodology:

• HR Process Design & Consulting (ALIGN): Establishing best practices and foundational requirements.

• Technology Implementation (AUTOMATE): The core area for this role, focusing on configuring and integrating HR systems.

• Change Management & Adoption (ADOPT): Ensuring user buy-in and effective utilization of new systems.

• Managed Support Services (AMS): Ongoing support and maintenance post-implementation.

Company Website: www.rollingarrays.com

📝 Enhancement Note: The company's focus on a full spectrum of HR transformation services, from process design to ongoing support, implies a mature consulting practice. For an Interface Designer, this means understanding the entire project lifecycle and how integration design impacts downstream adoption and support.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned at the "Consultant" level, representing an individual contributor focused on a specific functional area (integration design) within technology implementation. It requires a solid foundation of functional HRIS knowledge combined with a growing understanding of technical integration patterns.

Reporting Structure: The Interface Designer will likely report to a Lead Consultant or Integration Workstream Lead, who oversees multiple integration projects or a complex integration stream within a larger implementation. This senior role provides guidance and oversight, ensuring adherence to RAC's quality standards.

Operations Impact: The Interface Designer's work is critical for the success of Oracle HCM implementations. Precise interface designs directly impact:

• Data Accuracy: Ensuring correct data flows for payroll, HR reporting, and talent management.

• Efficiency: Minimizing rework for developers and reducing testing cycles.

• Timely Delivery: Enabling projects to stay on schedule and within budget.

• Client Satisfaction: Delivering robust and reliable integrations that meet business needs.

Growth Opportunities:

• Specialization: Develop deep expertise in Oracle HCM integration patterns and OIC, becoming a go-to subject matter expert.

• Senior Consultant: Progress to Senior Consultant, taking on more complex integrations, mentoring junior team members, and leading smaller integration streams.

• Integration Workstream Lead: Lead the entire integration effort for larger projects, managing a team of designers and developers, and being accountable for the overall integration delivery.

• Solution Architect: Transition to a Solution Architect role, designing end-to-end HR technology solutions that encompass integrations, system configurations, and business process re-engineering.

• Cross-Technology Exposure: Gain exposure to other HR platforms like SAP SuccessFactors and Workday, broadening skill sets.

📝 Enhancement Note: The clear career progression path from Consultant to Solution Architect or Practice Lead highlights Rolling Arrays' commitment to developing talent. For operations professionals, this signifies a structured environment for building specialized skills and advancing within the HR Tech consulting domain.

🌐 Work Environment

Office Type: The role is described as "Hybrid," implying a blend of remote work and in-office presence. This suggests access to office facilities for collaborative sessions, client meetings, and team workshops, balanced with the flexibility of remote work for focused design and documentation tasks.

Office Location(s): The company has offices across Singapore, India, Malaysia, Australia, and Hong Kong. The specific office location for this role is Singapore. This provides a regional hub with potential for collaboration with colleagues across different geographies.

Workspace Context:

• Collaborative Hub: The office environment likely facilitates team meetings, brainstorming sessions, and client presentations, fostering a strong sense of team cohesion and shared purpose.

• Technology-Enabled: Expect access to standard office technology, reliable internet, and potentially specialized software required for interface design and project management.

• Professional Services Atmosphere: The environment is expected to be professional, client-focused, and oriented towards high-quality delivery and continuous learning.

Work Schedule: The standard 40-hour work week is complemented by the hybrid model, offering flexibility. However, the demands of consulting projects, especially during critical integration phases, may require working beyond standard hours to meet deadlines and client expectations.

📝 Enhancement Note: The hybrid model combined with international offices suggests a modern consulting firm that values both flexibility and face-to-face collaboration. For an Interface Designer, this means being comfortable with both independent, focused work and dynamic team interactions.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your resume and application to assess foundational qualifications and relevant experience.

• Functional Interview: A discussion with a Senior Consultant or Lead Consultant focusing on your Oracle HCM knowledge, integration design principles, and experience with IDDs and requirements elicitation. Be prepared to discuss specific examples from your past projects.

• Technical/Case Study Interview: This may involve a technical assessment or a case study where you're asked to design an interface for a hypothetical scenario. This will evaluate your IDD precision, field mapping skills, and understanding of integration patterns. You may be asked to walk through an example from your portfolio.

• Cultural Fit/Team Interview: An opportunity to meet with other team members to assess alignment with Rolling Arrays' culture code and collaboration style.

• Final Interview: Potentially with a Practice Lead or Senior Manager to discuss career aspirations and finalize the offer.

Portfolio Review Tips:

• Curate Selectively: Choose 2-3 of your strongest, most relevant projects that showcase your IDD precision and integration design capabilities.

• Focus on Impact: For each project, clearly articulate the business problem, your role, the solution you designed (highlighting key IDD elements), and the tangible outcomes or benefits achieved (e.g., reduced development time, successful UAT).

• Demonstrate IDD Detail: Be ready to present specific sections of an IDD, explaining your rationale for mapping choices, transformation rules, and error handling strategies. Emphasize how your detail level supports developers.

• Explain Your Process: Walk through your approach to requirements elicitation, stakeholder engagement, and collaboration with technical teams.

• Quantify Results: Whenever possible, use metrics to demonstrate the success of your designs (e.g., "Reduced integration defect rate by X%," "Enabled UAT completion Y days ahead of schedule").

Challenge Preparation:

• IDD Design Exercise: Practice creating a detailed IDD for a common HR integration scenario (e.g., new hire data to a third-party background check provider, or employee data sync to a benefits provider). Focus on capturing all necessary elements.

• Requirements Elicitation Role-Play: Be ready to simulate an interview where you need to elicit integration requirements from a client stakeholder. Think about the questions you would ask to uncover triggers, frequency, error handling, and business impact.

• Test Case Development: Prepare to outline test cases for a given integration scenario, ensuring you cover positive, negative, and edge cases.

📝 Enhancement Note: The interview process emphasizes practical application and demonstrable skills. A well-prepared portfolio that clearly showcases the precision and impact of your interface design work will be crucial for success. The focus on "developer-usable" specifications means highlighting how your documentation directly contributes to efficient technical execution.

🛠 Tools & Technology Stack

Primary Tools:

• Oracle HCM Cloud: Deep functional knowledge of data structures and integration points across various modules (Core HR, Payroll, Absence, Talent).

• Oracle Integration Cloud (OIC): Understanding of OIC architecture, capabilities (REST/SOAP APIs, HCM Extracts, OIC Connectors), and how functional specifications translate into OIC development.

• Microsoft Office Suite: Proficiency in Word (for IDDs), Excel (for field mapping, data analysis), PowerPoint (for presentations), and Visio or similar tools (for process flow diagrams).

Analytics & Reporting:

• HCM Extracts: Experience in defining and understanding Oracle HCM Extracts for outbound data feeds.

• Reporting Tools: Familiarity with Oracle BI Publisher or similar tools for data validation and reporting, if applicable.

CRM & Automation:

• Project Management Tools: Awareness of tools like Jira, Asana, or similar for defect tracking and task management.

• Collaboration Platforms: Proficiency in tools like Microsoft Teams, Slack, or Zoom for communication and remote collaboration.

📝 Enhancement Note: The core technology stack revolves around Oracle's HR and integration platforms. Demonstrating proficiency not just in using these tools, but in understanding how functional design translates into their effective configuration and operation, is key.

👥 Team Culture & Values

Operations Values:

• Thinking Smart: Applying analytical rigor to identify patterns in data flows and potential integration challenges, proposing efficient and effective solutions.

• Never Stop Learning: Continuously updating knowledge on Oracle HCM releases, new integration patterns, OIC features, and best practices in HR technology.

• Being Nice to Everyone: Maintaining professional and respectful communication with all stakeholders, including clients, developers, and team members, fostering a positive collaborative environment.

• Be Super Patient with Customers: Exercising patience and proactivity when eliciting requirements or addressing client concerns, ensuring clear understanding and effective problem-solving.

• Help Your Teammates: Actively sharing knowledge, offering support on integration design challenges, and contributing to a cohesive team effort.

• Acknowledge Your Mistakes: Openly identifying and learning from any errors in design specifications or testing, contributing to continuous improvement of processes and personal skills.

Collaboration Style:

• Cross-Functional Integration: Working seamlessly with OIC developers, functional consultants for other modules, and client IT teams to ensure holistic integration solutions.

• Process Review & Feedback: Actively participating in design reviews and providing constructive feedback on integration specifications and developed solutions.

• Knowledge Sharing: Contributing to internal knowledge bases, best practice documents, and team debriefs to elevate the collective expertise of the operations and implementation teams.

📝 Enhancement Note: The emphasis on the "Culture Code" suggests that Rolling Arrays values not only technical competence but also strong interpersonal skills and a proactive, learning-oriented mindset, which are essential for consulting roles impacting client operations.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of HR Data: Navigating the intricate data models of Oracle HCM and understanding how different modules interact can be challenging. Mitigation involves deep dives into Oracle documentation and hands-on experience.

• Evolving Integration Technologies: Keeping pace with the rapid advancements in integration platforms like OIC and new API standards requires continuous learning. Embracing training and certifications is key.

• Balancing Precision with Speed: Producing highly detailed IDDs without causing significant delays requires efficient workflows and strong time management. Developing templates and standardized approaches can help.

• Client Stakeholder Management: Eliciting accurate and complete requirements from diverse stakeholders with varying technical understanding requires strong communication and facilitation skills. Active listening and clear articulation are crucial.

Learning & Development Opportunities:

• Oracle HCM Module Depth: Opportunities to gain deeper functional expertise in specific Oracle HCM modules (e.g., Payroll, Advanced Benefits) which will enhance integration design capabilities.

• OIC Advanced Features: Training and certification in advanced OIC capabilities, including complex orchestration, error handling patterns, and security configurations.

• Integration Architecture: Exposure to broader integration architecture principles and best practices, potentially leading to Solution Architect roles.

• Cross-Platform Exposure: Learning about integration patterns for other leading HRIS platforms like SAP SuccessFactors and Workday, broadening marketability.

📝 Enhancement Note: The challenges outlined are common in specialized operations roles. The growth opportunities highlight a clear path for professional development within the HR Tech consulting space, emphasizing specialization and continuous skill enhancement.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex integration you designed for Oracle HCM. What were the key challenges, how did you approach the IDD, and what was the outcome?" (Focus on IDD precision, problem-solving, and impact.)

• "How do you ensure your interface design specifications are clear enough for a developer to build from without asking clarifying questions? Walk me through your typical IDD structure." (Demonstrate understanding of developer needs and IDD detail.)

Company & Culture Questions:

• "How do Rolling Arrays' 'Culture Code' values resonate with your personal work style and approach to collaborative projects?" (Prepare specific examples linking your experience to their values.)

• "How do you approach learning about new integration patterns or Oracle HCM features when working on an engagement?" (Highlight your commitment to continuous learning.)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly define the business problem, your specific role and contribution, the technical solution (highlighting the IDD), and quantifiable results.

• Show, Don't Just Tell: Be prepared to share specific pages or sections of your IDDs, explaining your rationale for mapping decisions, transformation rules, and error handling.

• Focus on Precision: Emphasize how your detailed specifications directly contributed to the efficiency and success of the integration build and testing phases.

• Address the "Why": Explain the business impact of your integration designs – how they enabled better HR processes, improved data accuracy, or supported broader business objectives.

📝 Enhancement Note: Preparation should focus on demonstrating a deep understanding of integration design principles, meticulous documentation habits, and the ability to translate complex HR data flows into clear, actionable specifications for technical teams. Quantifiable achievements and a clear articulation of the business impact of your work are essential.

📌 Application Steps

To apply for this Oracle Interface Designer - Consultant position:

• Submit your application through the provided link on Workable.

• Curate Your Operations Portfolio: Select 2-3 key projects that best showcase your Oracle HCM integration design experience. Ensure your selected Interface Design Documents (IDDs) are exceptionally detailed and clearly illustrate your field mapping, transformation rules, and error handling strategies.

• Optimize Your Resume: Tailor your resume to highlight specific Oracle HCM modules you've worked with, your experience producing IDDs, your collaboration with OIC developers, and any integration testing you've conducted. Use keywords from the job description, such as "Interface Design," "Oracle HCM," "OIC," "Field Mapping," and "Requirements Elicitation."

• Prepare Your Portfolio Presentation: Practice walking through your selected portfolio examples. Be ready to explain your design decisions, the challenges you overcame, and the quantifiable business impact of your work. Focus on demonstrating how your precision minimizes developer rework and accelerates project timelines.

• Research Rolling Arrays: Familiarize yourself with Rolling Arrays' company culture, values, and service offerings. Understand their approach to HR digital transformation and how the Interface Designer role contributes to their overall project delivery methodology.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.