الوصف الوظيفي
The best PaaS Designers know what not to build.
If your instinct is to reach for the simplest extension that solves the requirement — not the most technically impressive one — and you can produce Extension Design Documents a developer can build from without a single clarifying question, we want to talk.
ABOUT ROLLING ARRAYS Rolling Arrays is a private equity-backed, award-winning HR Tech consulting firm — Asia Pacific's premium partner for enterprise HR digital transformation.
Headquartered in Singapore and with offices across India, Malaysia, Australia, and Hong Kong, we have delivered more than 200 HR Transformation projects since our founding in 2009, and were recognised as one of Singapore's Top 100 fastest-growing companies in 2025.
We specialise in SAP SuccessFactors, Oracle HCM, and Workday across the full delivery spectrum: HR process design and consulting (ALIGN), technology implementation (AUTOMATE), change management and adoption (ADOPT), and managed support services (AMS).
POSITION SUMMARY RAC is looking for a Functional PaaS Designer with Oracle HCM Application Composer and Page Composer experience.
This is a functional delivery role — not a developer position.
You will extend Oracle HCM using Oracle's low-code extensibility layer to meet client requirements beyond standard configuration, govern the extension catalogue, and produce developer-handoff specifications that are precise enough to build from without interpretation.
WHAT YOU WILL DO Govern the extension decision framework — assessing every non-standard requirement against the hierarchy of options and recommending the approach that solves the requirement with the least implementation risk and the smallest upgrade footprint Configure Oracle Application Composer custom objects — designing top-level and child business objects, defining field types, configuring field-level validation logic, and integrating custom objects with Oracle HCM's standard approval and notification framework Configure Page Composer and Page Designer to customise HCM UI layouts — adding hints, making fields conditionally required, hiding fields from specific user populations, and reordering page sections across both Redwood and non-Redwood pages Own sandbox management governance — defining the sandbox strategy, managing conflict resolution when parallel configuration streams affect the same pages, and preventing the most destructive sandbox mistake: publishing a sandbox that overwrites another team's approved configuration Produce Extension Design Documents at a precision level that allows a developer to build without re-engagement — including upgrade-safety notes that tell the client's support team which extensions require post-patch regression testing Advise on Groovy scripting requirements — translating business rules into scripting specifications for developer implementation and reviewing delivered scripts for logical correctness against the original requirement WHY ROLLING ARRAYS Extension design is a delivery competency at RAC, not a technical niche.
You will work across Oracle HCM implementations where client requirements consistently push beyond standard configuration, developing a rare functional-technical bridge skill set that positions you for Solution Architect and Oracle Practice Lead opportunities.
OUR CULTURE CODE Six values define how we operate every day at Rolling Arrays Thinking Smart — spot patterns, chase smarter solutions, and illuminate the path to greater productivity Never Stop Learning — refine and elevate skills constantly; explore the world with a curiosity lens Being Nice to Everyone — treat everyone with genuine warmth and respect, regardless of seniority Be Super Patient with Customers — exercise patience and proactivity in every client interaction Help Your Teammates — share the load, lighten the stress, nurture a truly collaborative team Acknowledge Your Mistakes — embrace mistakes as steppingstones; grow from each one WHAT WE'RE LOOKING FOR 4–5 years of Oracle HCM functional experience with hands-on Application Composer and Page Composer configuration on at least two live delivery projects Demonstrated ability to design and build custom business objects, configure field validation rules, and deliver page customisations independently without developer support for the functional layer Proven sandbox governance experience — has managed a multi-team sandbox environment and prevented configuration conflicts Experience producing Extension Design Documents for developer handoff — not just internal notes, but artefacts that another party can build from Client advisory experience — has presented extension options and their trade-offs to business stakeholders and defended the recommendation PREFERRED QUALIFICATIONS Oracle Fusion Cloud Applications HCM Process Essentials certified — the foundational HCM credential; at Senior level this is a baseline expectation Oracle Global Human Resources Cloud Implementation Professional — PaaS extensions are built on top of Core HR; module depth is essential for designing extensions that survive quarterly updates Oracle Cloud Platform Application Integration 2024 Specialist — for consultants who extend into OIC-based custom UI integrations beyond Application Composer Groovy scripting certification or demonstrable project experience — Oracle's Application Composer Groovy API is not formally certified but hands-on project evidence is the equivalent signal BUSINESS & CONSULTING SKILLS Cutover communication — presents go/no-go recommendations to project leadership with a clear rationale that holds up under pressure Client data team governance — sets quality gates, holds external data owners accountable, and escalates through the project structure without damaging the relationship Migration risk articulation — translates data quality issues into business impact language that project leadership can act on, not just technical error counts Delivery accountability — owns the migration workstream outcome, not just the individual load runs Mentoring delivery — builds junior consultant capability through structured review, not just observation Structured escalation — knows the difference between a data quality issue that can be resolved and one that requires a go-live date conversation.
BUSINESS & CONSULTING SKILLS Extension advisory credibility — presents build-versus-configure options and their trade-offs to business stakeholders and defends the recommendation with evidence Developer handoff precision — produces Extension Design Documents that a developer can build from without clarifying questions; ambiguity in the spec is a delivery risk Upgrade risk communication — explains quarterly release implications to client IT teams in terms they can act on, not just flag Sandbox governance leadership — manages multi-team configuration discipline and enforces process without becoming a bottleneck Structured solutioning — assesses every non-standard requirement against the full hierarchy of options before recommending an extension Delivery accountability — owns the extension workstream quality and maintains the extension catalogue through go-live CAREER PROGRESSION Senior Consultant → Lead Consultant → Solution Architect → Practice Lead
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