Senior Workday Integration Architect

Lambda · San Francisco, California · $206K - $275K · hybrid Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. Business Technology at Lambda builds and scales the internal systems that power our business. We partner across the company with Finance, GTM, Engineering, and People to implement tools, automate workflows, and ensure data flows securely and accurately. We are hiring a Sr. Workday Integrations Architect to own the design, build, and operation of that integration landscape end to end, from implementation through go-live and into steady-state operations. This is a hands-on architecture role for someone who is as comfortable building a Studio integration as they are defending a design decision in front of Security, Finance, and Audit. Responsibilities Integration Architecture: Define and own the target-state integration architecture for Workday: patterns, standards, naming conventions, error handling, monitoring, and reusable components. Implementation: Serve as the technical lead for integrations in our Workday implementation. Rippling Migration & Data Conversion: Design and execute data extraction, transformation, and load from Rippling into Workday. Inbound Integrations: Build and maintain inbound feeds into Workday. Outbound Integrations: Build and maintain outbound feeds to benefits carriers, 401(k), tax filing, international and global payroll providers. Finance & Payroll Integrations: Own payroll results, accounting journal, and GL posting integrations to NetSuite. Identity & Provisioning: Partner with IT on the Workday-to-Okta lifecycle. Data Platform & Reporting: Design Workday data extracts and RaaS reports that feed BigQuery and the analytics platform. Operations & Reliability: Establish monitoring, alerting, retry logic, runbooks, and on-call practices for integrations. Compliance & Controls: Design integrations and integration security to satisfy SOX ITGC requirements. Releases & Roadmap: Stay current on Workday's semi-annual releases, assess impact on the integration footprint, run regression testing, and adopt new capabilities. Enablement & Mentorship: Write the documentation, integration inventory, and data dictionaries. Requirements Experience: 10+ years in HRIS, enterprise integration, or systems architecture, with at least 6+ years designing and building Workday integrations. Workday Integration Depth: Expert with EIB, Core Connectors, Workday Studio, Workday Web Services (SOAP and REST), RaaS and custom reports. Integration Platforms: Hands-on experience with an iPaaS or middleware platform. Payroll & Benefits Integrations: Have built or supported payroll, benefits carrier, 401(k), and tax filing integrations. Data Fluency: Strong SQL and data modeling skills. Compliance & Controls: Have operated in a SOX or audit-facing environment. Operating Rigor: You design for failure, test thoroughly, document what you build. Cross-functional Partnership: Comfortable translating between People, Finance, Payroll, IT, Security, and Engineering. Adaptability: Comfortable with ambiguity and velocity at a pre-IPO company. Nice to Have Workday Pro certifications in Integrations, Studio, Payroll, or HCM. Experience migrating from Rippling or another all-in-one HR/payroll platform to Workday. Experience with international payroll providers. Familiarity with the rest of our stack: NetSuite, Okta, Lumos, Workato, BigQuery. IPO readiness experience. Experience using AI tooling to accelerate integration testing.