Direct message the job poster from Mumba Technologies, Inc.SR Technical Recruiter/ Startups Expert/ Bay Area MarketAs a Senior Systems Engineer on the HR and Payroll Systems team, you'll design, implement, and optimize our HR and payroll technology landscape, including Workday, Greenhouse, Rippling, Lattice, and CultureAmp. You'll collaborate with cross‑functional partners across HR, Finance, Payroll, and IT to build and maintain a seamless, automated, and secure systems ecosystem. This role is a blend of hands‑on system configuration, technical solutioning, and strategic process improvement, ensuring our HR technology stack scales with CoreWeave's global growth.Who You Are : Bachelor's degree in Computer Science, Information Systems, or related field5+ years of hands‑on experience with Workday, Greenhouse, or other HRIS platformsExpertise in one or more Workday modules (HCM, Payroll, Absence, Benefits, Time Tracking, etc.)Strong understanding of Workday security, reporting, integrations, and business process configurationExperience with Workday Studio, EIBs, Calculated Fields, REST/SOAP APIs, and BIRT reporting (preferred)Proven experience supporting Workday implementations, enhancements, and optimizationsFamiliarity with SOX compliance, HRIS governance, and system security best practicesExperience with automation tools and system integration testingPreferred : Experience supporting global payroll systems and multi‑country configurationsFamiliarity with HR analytics, dashboarding, and performance management systemsExposure to vendor management and third‑party system integrationsSeniority levelMid‑Senior levelEmployment typeContractJob functionHuman Resources and Information TechnologyIT Services and IT ConsultingReferrals increase your chances of interviewing at Mumba Technologies, Inc. by 2x#J-18808-Ljbffr