Mobley v. Workday is the single most important federal AI-hiring case nobody on your engineering team has heard of. In May 2025, a federal judge granted preliminary collective certification under the Age Discrimination in Employment Act — the first US court to certify a class of applicants rejected by an AI resume screener. In July 2025, the scope expanded to include applicants who went through HiredScore, Workday’s ML-powered ranking product.
No state AI law is in play. The plaintiffs are using Title VII and ADEA, 1960s-era civil rights statutes. The theory: when Workday’s AI makes a hiring decision for its customer, Workday itself is liable as an “agent” of that employer. If proven, that flips the liability map. A SaaS vendor that sells an AI-screening tool becomes directly responsible for every discriminatory output — not just the customer who deployed it.
The EEOC won its first AI-hiring case back in May 2023 against iTutorGroup for $365,000. That was a named discrimination claim against the employer. Mobley is the vendor-liability theory — orders of magnitude worse for the HR-tech industry.
Who should be paying attention: every applicant tracking system, every recruitment ML layer, every HR-tech SaaS. Workday has ~60% of Fortune 500 on its platform. If the class goes to trial and wins, the HR-tech industry faces a Title VII reckoning the Big Law firms have been quietly warning about for two years.
For operators, three things change right now. Vendor diligence on AI hiring tools needs to include bias-audit documentation, not just model cards. Your employment counsel needs to be in the AI procurement loop. And if you’re building an ML ranking product aimed at HR — read the July order before your next investor call.
— Nathan Zakhary