Workday PSA, Professional Services Automation Architect

We are seeking an experienced Workday Professional Services Automation (PSA) Architect to implement the strategy, roadmap, architecture, and ongoing evolution of our enterprise Workday PSA platform. Serving as both design authority and hands-on technical lead, the PSA Architect will translate complex finance and operational requirements into scalable solutions spanning project and contract setup, time and expense capture, resource and utilization management, customer accounts, billing, invoicing, revenue recognition, accounts receivable, and collections. Partnering closely with Finance, Operations, Technology, and regional collaborators, this role will lead major PSA initiatives from discovery through implementation, stabilization, and ongoing support in a global, matrixed environment! Aon is in the business of better decisions At Aon, we shape decisions for the better to protect and enrich the lives of people around the world! As an organization, we are united through trust as one engaged team, and we are passionate about helping our colleagues and clients succeed. What the day will look like Implement the vision, roadmap, governance, and lifecycle management of Workday PSA, aligning platform capabilities with global finance, order-to-cash, project delivery, and operational priorities. Serve as the enterprise design authority for Workday PSA. Lead solution architecture across Projects, Project Billing, Customer Contracts, Customer Accounts, Time Tracking, Expenses, Revenue Management, Accounts Receivable, and Collections. Lead technical solutioning for major PSA initiatives from discovery and process design through configuration, testing, deployment, hypercare, and transition to steady state support. Translate complex business requirements into scalable Workday configurations, business processes, security designs, integrations, and operating procedures. Architect end-to-end professional services processes that support: Project, contract, customer, and worktag setup. Time and expense capture, approval, and corrections. Billing schedules, billable transactions, invoice creation, adjustments, and special handling Revenue schedules, revenue recognition, intercompany activity, and accounting alignment Accounts receivable, cash application, collections, write-offs, and customer account management Utilization, project performance, margin, operational, and financial reporting Define architectural standards and guardrails for configuration, business processes, calculated fields, custom validations, reporting, security, and data governance. Partner with Workday Financials and HCM architects to ensure PSA designs align with the broader Workday platform, enterprise architecture, chart of accounts, organizational structures, worker data, and time entry requirements. Architect and oversee integrations between Workday PSA and adjacent platforms, including CRM, contract lifecycle management, ERP, tax, banking, data warehouses, reporting, payroll, and other enterprise applications. Own data integrity and control design across customer, contract, project, worker, time, billing, revenue, invoice, and receivables data, with clear reconciliation and auditability. Support the Workday security build, including security groups, domain and business process policies, role assignments, access controls, and separation of responsibilities. Lead reporting and analytics architecture using Workday report writing, calculated fields, dashboards, worksheets, and downstream data platforms to support operational and executive decision making. Evaluate Workday releases and new PSA capabilities, assess business and technical impacts, oversee regression testing, and guide adoption decisions. Provide support for complex production issues, root-cause analysis, defect resolution, and business critical su