Oracle Interface Designer - Senior Consultant

📍 Job Overview

Job Title: Oracle Interface Designer - Senior Consultant

Company: Rolling Arrays - Consulting

Location: Singapore, Singapore

Job Type: Full-time

Category: Revenue Operations / Sales Operations / GTM Operations (specifically focused on HR Tech implementation and integration)

Date Posted: May 18, 2026

Experience Level: Senior (4-5 years of direct Oracle HCM experience)

Remote Status: Hybrid (with potential for remote work within Singapore)

🚀 Role Summary

• Lead the functional integration design workstream for Oracle HCM implementations, ensuring seamless data flow and mitigating integration risks.

• Own the end-to-end interface catalogue, from requirements gathering and Interface Design Document (IDD) production to developer handoff, testing, and User Acceptance Testing (UAT) sign-off.

• Act as the primary functional integration authority and client IT interface, fostering strong collaboration and communication.

• Drive the prioritization and phasing of interface development based on criticality, dependencies, and third-party readiness.

• Conduct rigorous developer quality assurance (QA) and manage integration UAT to ensure successful project delivery.

📝 Enhancement Note: This role is highly specialized within the HR Tech implementation space, focusing on the critical operational aspect of integrating disparate systems. While not a traditional "Sales" or "Revenue" Operations role, the skills in process design, data flow management, risk mitigation, and stakeholder management are directly transferable and highly valued in GTM operations. The emphasis on "owning the workstream" and managing external dependencies aligns perfectly with senior operations leadership expectations.

📈 Primary Responsibilities

• Interface Catalogue Ownership: Produce and meticulously maintain a comprehensive interface inventory within the initial two weeks of the design phase, classifying each interface by pattern, direction, criticality, and third-party owner, serving as the project's single source of truth.

• Integration Requirements Workshops: Lead and facilitate integration requirements workshops, effectively eliciting trigger conditions, error handling protocols, Service Level Agreement (SLA) expectations, and the business impact of failures. Ensure workshop outputs directly inform Interface Design Document (IDD) authoring.

• Interface Design Document (IDD) Authoring: Develop and own all IDDs to a level of precision that enables Oracle Integration Cloud (OIC) developers to build integrations with minimal functional re-engagement, securing client IT sign-off prior to commencement of development.

• Interface Prioritization & Phasing: Strategically recommend the sequence for interface development, considering go-live criticality, third-party system readiness, and data migration dependencies. Proactively escalate issues when third-party teams impede sign-off processes.

• Developer Quality Assurance (QA): Conduct thorough reviews of Oracle Integration Cloud (OIC) developer builds against IDD specifications. Log formal defects, referencing specific IDD fields, and clearly distinguish design deviations from legitimate technical implementation decisions.

• Integration UAT Ownership: Design and execute the integration test plan, coordinate the availability of third-party test environments, and drive defect resolution to achieve formal UAT sign-off for all interfaces.

• Risk Management & Escalation: Identify, assess, and communicate integration risks to project leadership and client IT Directors, providing clear status updates, risk assessments, and readiness reports.

📝 Enhancement Note: The responsibilities emphasize a proactive, ownership-driven approach to integration management, crucial for complex HR transformation projects. The role demands not just technical understanding but also strong project management and client-facing communication skills, typical of senior operations consultants.

🎓 Skills & Qualifications

Education:

Experience:

• Minimum 4-5 years of direct Oracle HCM experience, with demonstrated ownership of interface design workstreams on at least two full-cycle implementations through UAT sign-off.

• Proven experience managing an interface catalogue of 10+ integrations on a single engagement.

Required Skills:

• Oracle HCM Expertise: Deep understanding of Oracle HCM modules and their data structures.

• Interface Design & Documentation (IDD): Proficiency in creating detailed Interface Design Documents for integration development.

• Oracle Integration Cloud (OIC): Hands-on experience with OIC for designing, building, and managing integrations.

• Integration Mapping & Logic: Ability to define complex data mapping rules and business logic for system-to-system communication.

• User Acceptance Testing (UAT) Management: Experience in planning, coordinating, and executing UAT for integration components.

• Requirements Elicitation: Skill in leading workshops to gather detailed technical and functional integration requirements.

• IT Architecture Credibility: Ability to engage with and influence client IT architects on integration design decisions.

• Third-Party System Management: Experience managing and coordinating with external system teams and vendors.

• Risk Communication: Ability to articulate integration risks and status to project leadership and stakeholders.

• Workstream Leadership: Proven ability to own and drive an integration workstream end-to-end.

Preferred Skills:

• Oracle Cloud Platform Application Integration 2025 Professional Certification: Highly desired credential validating OIC expertise.

• Oracle Global Human Resources Cloud Implementation Professional Certification: Enhances ability to validate data availability independently.

• Oracle Fusion Cloud Applications HCM Process Essentials Certification: Demonstrates cross-module process understanding.

• APAC Integration Experience: Experience designing interfaces for Oracle HCM with third-party payroll, HRIS, or access management systems specifically within the APAC region.

• Oracle ERP Integration: Experience integrating Oracle HCM with Oracle ERP systems.

📝 Enhancement Note: The emphasis on specific Oracle certifications (OIC, Core HR, Process Essentials) indicates a need for deep technical and functional proficiency. The preference for APAC experience suggests a focus on regional compliance and system landscapes. The "Developer QA" requirement is critical for operations roles that involve overseeing technical build quality.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Interface Design Document (IDD) Examples: Showcase at least two detailed IDDs for complex integrations, demonstrating precision in mapping, error handling, and technical specifications.

• Interface Catalogue Samples: Include a sample interface catalogue illustrating classification by pattern, direction, criticality, and third-party owner.

• UAT Test Plans & Reports: Provide examples of UAT test plans for integration workstreams and associated sign-off reports, highlighting defect resolution metrics.

• Integration Risk Register/Status Reports: Demonstrate experience in identifying, assessing, and communicating integration risks through a risk register or status reports, including escalation examples.

Process Documentation:

• Workflow Design & Optimization: Candidates should be prepared to discuss how they design and optimize integration workflows, ensuring efficiency and data integrity.

• Implementation & Automation: Examples of how they oversee the implementation of integrations and leverage automation within OIC.

• Measurement & Performance Analysis: Ability to describe how integration performance is measured, monitored, and analyzed post-implementation.

📝 Enhancement Note: For a role focused on integration design and ownership, the portfolio should heavily feature documentation related to the integration lifecycle. Demonstrating the ability to create clear, actionable technical specifications (IDDs) and manage the entire process from requirements to UAT is paramount. This goes beyond simply listing tools to showcasing the tangible outputs of their work.

💵 Compensation & Benefits

Salary Range:

• Estimated Range: SGD 9,000 - SGD 13,000 per month (approximately USD 6,600 - USD 9,600 per month, depending on exchange rates).

• Explanation: This estimate is based on research for Senior Consultant roles in IT/HR Tech implementation and consulting in Singapore, considering the specialized nature of Oracle HCM and OIC expertise, and the "Senior Consultant" title. The salary range reflects the high demand for professionals with proven experience in managing complex integration workstreams and mitigating significant project risks. This range also accounts for the cost of living in Singapore.

Benefits:

• Health Insurance: Comprehensive medical, dental, and vision coverage.

• Professional Development: Support for ongoing training, certifications (including Oracle certifications), and attendance at industry conferences.

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

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

• Retirement Savings Plan: Contribution to a national pension scheme (e.g., CPF in Singapore) or a company-sponsored retirement plan.

• Travel Opportunities: Potential for international travel, particularly within the APAC region, for client engagements.

Working Hours:

• Standard: 40 hours per week.

• Flexibility: Hybrid work model offering flexibility between office-based and remote work, with an expectation of presence during key client meetings and team collaboration sessions. Some evening or weekend work may be required during critical project phases or to align with global team schedules, but this is typically managed and compensated.

📝 Enhancement Note: A specific salary range for Singapore has been estimated and justified. The benefits listed are typical for senior consulting roles in multinational firms and are tailored to appeal to operations professionals focusing on continuous learning and career advancement.

🎯 Team & Company Context

🏢 Company Culture

Industry: HR Technology Consulting / Enterprise Software Implementation.

Company Size: Rolling Arrays is a growing firm, described as having offices across multiple APAC countries and having delivered over 200 projects. This suggests a mid-sized to large enterprise consulting firm structure, likely between 250-1000 employees globally.

Founded: 2009. This indicates a well-established firm with significant experience in the HR Tech transformation space, providing stability and a wealth of project knowledge.

Team Structure:

• Operations Team: The role sits within the Oracle HCM implementation practice, likely part of a larger consulting team. This team will include functional consultants (Core HR, Payroll, etc.), technical consultants, project managers, and change management specialists.

• Reporting Structure: The Senior Interface Designer will report to a Practice Lead or a Solution Architect, and will likely manage relationships with third-party system owners and client IT teams.

• Cross-functional Collaboration: High degree of collaboration with functional consultants to understand data requirements, with OIC developers for build oversight, with project managers for timelines and risk, and with client IT architects for technical alignment.

Methodology:

• Data Analysis & Insights: Emphasis on using data to understand integration requirements, identify potential risks, and measure performance.

• Workflow Planning & Optimization: Focus on designing efficient and robust integration workflows that support business processes.

• Automation & Efficiency: Leveraging Oracle Integration Cloud (OIC) to automate data transfer and streamline processes, reducing manual effort and error.

Company Website: www.rollingarrays.com

📝 Enhancement Note: The company's focus on HR transformation, its established history, and its multi-country presence suggest a professional, process-driven environment. The emphasis on "owning the workstream" and managing risks aligns with a culture that values accountability and proactive problem-solving.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned at a "Senior Consultant" level within the integration domain. It signifies a move from contributing to an integration workstream to owning and leading it. It requires a strong command of technical integration design principles and practical implementation experience.

Reporting Structure: The Senior Interface Designer will typically report to a Lead Consultant, Solution Architect, or Project Manager. They will also act as a key point of contact for client IT leadership and third-party system administrators, requiring strong stakeholder management skills.

Operations Impact: The role has a direct and critical impact on the success of Oracle HCM implementations. Flawless integrations are essential for data accuracy, system usability, and overall business process efficiency. A Senior Interface Designer's ability to mitigate integration risks directly protects project timelines, budgets, and client satisfaction, thereby safeguarding the firm's reputation and revenue.

Growth Opportunities:

• Operations Skill Advancement: Progression to Lead Consultant, where they might manage multiple integration workstreams or mentor junior designers.

• Technical Specialization: Deepen expertise in Oracle Integration Cloud (OIC) and other integration technologies, potentially becoming a recognized OIC specialist.

• Solution Architecture Path: Transition to a Solution Architect role, where they would design the overall technical architecture for HR transformation projects, including complex integration strategies.

• Practice Leadership: Opportunity to become a Practice Lead for Oracle HCM Integrations, responsible for strategy, team development, and business growth within that specialization.

📝 Enhancement Note: The defined career progression clearly outlines a path from technical specialist to leadership and strategic roles. This is attractive to operations professionals seeking a defined growth trajectory within a specialized field. The emphasis on "owning the risk" and the direct impact on project success are key motivators for ambitious operations professionals.

🌐 Work Environment

Office Type: Rolling Arrays operates with a hybrid work model. This implies a mix of working from a physical office location and remotely. The office environment is likely designed to facilitate collaboration, client meetings, and team workshops, while also providing the necessary infrastructure for focused work.

Office Location(s): The primary listed location is Singapore, Singapore. Rolling Arrays also has offices in India, Malaysia, and Hong Kong, suggesting potential for regional travel or collaboration with teams in these locations. The Singapore office would likely be centrally located and accessible via public transport.

Workspace Context:

• Collaborative Environment: The office space will likely include meeting rooms, project war rooms, and open areas designed for team interaction and brainstorming, crucial for complex integration design sessions.

• Operations Tools & Technology: Access to necessary hardware, software licenses for Oracle HCM, OIC, and other relevant project management and collaboration tools. High-speed internet and secure network access are essential.

• Team Interaction: Opportunities for face-to-face interaction with colleagues, fostering knowledge sharing and team cohesion. This is important for complex problem-solving and mentorship.

Work Schedule: The standard work schedule is 40 hours per week, with flexibility afforded by the hybrid model. However, the nature of consulting and critical project phases may necessitate extended hours or weekend work, which is typical for senior roles responsible for high-stakes deliverables like integration sign-offs.

📝 Enhancement Note: The hybrid nature caters to modern work preferences while acknowledging the need for in-person collaboration in complex consulting projects. The emphasis on a collaborative workspace and access to tools is vital for operations professionals who rely on efficient systems and teamwork.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your resume and portfolio to assess suitability for the Senior Interface Designer role, focusing on Oracle HCM and OIC integration experience.

• Technical Interview: A detailed discussion on your experience with Oracle HCM integrations, OIC capabilities, IDD creation, and integration risk management. Expect scenario-based questions and discussions about past projects.

• Case Study Presentation: You will likely be asked to present a case study from your portfolio, detailing a complex integration challenge you faced, your approach to design and implementation, the risks managed, and the successful outcome. This will be presented to a panel including senior consultants or architects.

• Behavioral & Cultural Fit Interview: Assessment of your alignment with Rolling Arrays' "Culture Code" (Thinking Smart, Never Stop Learning, Being Nice, Patient with Customers, Help Teammates, Acknowledge Mistakes). Questions will focus on collaboration, problem-solving, and client interaction.

• Final Interview: A discussion with a Practice Lead or senior management to finalize the offer and discuss career progression.

Portfolio Review Tips:

• Showcase Ownership: Clearly highlight projects where you had end-to-end ownership of the integration workstream, not just a contributing role.

• Quantify Impact: Use metrics where possible – e.g., number of integrations managed, reduction in defects found post-build, successful UAT sign-off timelines.

• Focus on IDDs: Include well-structured and detailed examples of Interface Design Documents. These are critical proof of your capabilities.

• Detail Risk Management: Explain your process for identifying, assessing, and mitigating integration risks, with specific examples.

• Highlight Third-Party Management: Demonstrate your ability to work with and manage external system teams.

• Structure Your Case Study: For the case study, follow a clear narrative: Problem -> Your Solution (Design & Process) -> Challenges & How You Overcame Them -> Results & Impact.

Challenge Preparation:

• Integration Scenarios: Be prepared to discuss how you would approach designing integrations for common Oracle HCM scenarios (e.g., HR to Payroll, HR to Time & Labor, HR to external HRIS).

• OIC Troubleshooting: Think about common OIC issues and how you would diagnose and resolve them.

• Client Communication: Practice articulating technical concepts and risks in clear, business-oriented language suitable for client IT Directors.

• Process Improvement: Be ready to discuss how you would improve current integration processes for efficiency and accuracy.

📝 Enhancement Note: The interview process is designed to thoroughly assess technical expertise, project ownership, and cultural fit. Strong preparation of your portfolio, particularly with detailed IDD examples and case studies demonstrating end-to-end ownership, is crucial for success.

🛠 Tools & Technology Stack

Primary Tools:

• Oracle HCM Cloud: The core HR system requiring integration.

• Oracle Integration Cloud (OIC): The primary platform for designing, building, and managing integrations. Proficiency here is essential.

• Interface Design Document (IDD) Authoring Tools: Standard office productivity tools (e.g., Microsoft Word, Google Docs) for creating detailed technical specifications.

Analytics & Reporting:

• OIC Monitoring & Analytics: Tools within OIC for tracking integration performance, error rates, and message throughput.

• Reporting Tools: Potentially SQL clients or BI tools for data validation and analysis of integrated data.

• Dashboard Tools: Used for presenting integration status, risks, and performance metrics to project leadership and clients.

CRM & Automation:

• CRM (for Project Management): While not directly used for integration design, a CRM might be used internally for client management and project tracking.

• Workflow Automation: OIC itself is a powerful workflow automation tool for data movement and process orchestration between systems.

• Integration Platforms as a Service (iPaaS): OIC falls under this category, and understanding iPaaS concepts is beneficial.

📝 Enhancement Note: A strong command of Oracle HCM and OIC is non-negotiable. The ability to leverage OIC for automation and to use its monitoring tools for performance analysis is key. Experience with tools for documentation and potentially data validation will also be important.

👥 Team Culture & Values

Operations Values:

• Thinking Smart: Applies to identifying efficient integration patterns, spotting potential data conflicts early, and finding innovative solutions to complex integration challenges.

• Never Stop Learning: Encourages staying current with OIC updates, new Oracle HCM features, and evolving integration best practices.

• Being Nice to Everyone: Essential for collaborating effectively with internal teams, client IT personnel, and third-party developers, fostering positive working relationships.

• Be Super Patient with Customers: Crucial when dealing with client IT teams who may have different technical backgrounds or priorities, ensuring clear communication and support.

• Help Your Teammates: Sharing knowledge about integration patterns, troubleshooting common issues, and supporting functional consultants with data-related queries.

• Acknowledge Your Mistakes: Being transparent about any design flaws or implementation issues, and proactively working to correct them as part of the QA and UAT process.

Collaboration Style:

• Cross-functional Integration: Working closely with functional consultants to understand data requirements and with developers to ensure accurate implementation.

• Process Review Culture: Regularly reviewing integration designs and implementations with peers and leads to ensure adherence to best practices and quality standards.

• Knowledge Sharing: Actively sharing insights on integration challenges and solutions, contributing to the collective knowledge base of the Oracle HCM practice.

📝 Enhancement Note: The company's culture emphasizes a blend of technical acumen, continuous improvement, and strong interpersonal skills. For an operations role, demonstrating collaboration, a proactive approach to problem-solving, and a commitment to learning are vital for success and integration into the team.

⚡ Challenges & Growth Opportunities

Challenges:

• Managing Third-Party Dependencies: External system teams may have different priorities, technical capabilities, or communication styles, posing a significant risk to project timelines. Mitigation involves clear SLAs, proactive communication, and effective escalation.

• Complex Integration Scenarios: Integrating Oracle HCM with legacy systems or highly customized third-party applications can present unique technical hurdles and data mapping complexities.

• Ensuring Data Integrity & Accuracy: Guaranteeing that data flows correctly between systems without corruption or loss is paramount and requires meticulous design and rigorous testing.

• Evolving Technology Landscape: Keeping pace with updates to Oracle HCM and OIC, as well as changes in client IT environments, requires continuous learning.

Learning & Development Opportunities:

• Operations Skill Advancement: Deepening expertise in integration patterns, API technologies, and data governance specific to HR systems.

• Industry Conference & Certification Participation: Opportunities to attend events like Oracle CloudWorld or pursue advanced OIC certifications.

• Operations Mentorship & Leadership: Mentoring junior consultants, leading integration workstreams, and developing strategic architectural skills.

📝 Enhancement Note: The challenges highlight the inherent complexities of system integration in enterprise projects. The growth opportunities are clearly defined, offering a path towards greater responsibility, specialization, and leadership within the operations and consulting domain.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to manage a critical integration dependency that was blocking project progress. What steps did you take, and what was the outcome?" (Focus on your communication, escalation, and problem-solving approach).

• "How do you ensure that an Interface Design Document (IDD) is precise enough for a developer to build from without functional re-engagement?" (Elaborate on the level of detail, clarity, and validation you include).

Company & Culture Questions:

• "What interests you about Rolling Arrays and our approach to HR Tech transformation?" (Research their case studies and values).

• "How do you embody our value of 'Thinking Smart' in your approach to integration design?" (Provide examples of innovative or efficient solutions you've implemented).

Portfolio Presentation Strategy:

• Select Key Projects: Choose 2-3 projects that best showcase your ownership of the integration workstream, complexity, and successful outcomes.

• Structure Your Narrative: For each project, clearly articulate the business problem, the integration solution you designed (using IDD excerpts as evidence), the challenges faced (especially third-party management and risk), and the quantifiable business impact.

• Highlight OIC & IDD Proficiency: Be ready to walk through specific sections of your IDDs and explain how you leveraged OIC features to meet requirements.

• Demonstrate Risk Management: Show how you proactively identified and mitigated integration risks.

• Practice Your Pitch: Rehearse your presentation to ensure it is concise, impactful, and within the allotted time.

📝 Enhancement Note: Interview preparation should focus on demonstrating ownership, technical depth in Oracle HCM/OIC, and strong stakeholder management skills. Your portfolio is your primary tool; practice presenting it effectively.

📌 Application Steps

To apply for this operations position:

• Submit your application through the provided Workable link.

• Curate Your Portfolio: Select 2-3 of your most impactful Oracle HCM integration projects. Ensure your Interface Design Documents (IDDs) are well-organized and detailed, and prepare a concise summary of your role, the challenges, and the outcomes for each.

• Optimize Your Resume: Tailor your resume to highlight your 4-5 years of Oracle HCM experience, specific experience with OIC, IDD creation, UAT management, and third-party system coordination. Use keywords from the job description.

• Prepare Your Case Study: Craft a compelling narrative for your chosen projects, focusing on your end-to-end ownership of the integration workstream and your ability to mitigate risks. Practice presenting this case study smoothly.

• Research Rolling Arrays: Understand their company culture, values, and the types of HR Tech transformations they specialize in. Prepare to articulate why you are a good fit for their team and values.

⚠️ 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.