James here, CEO of Mercury Technology Solutions. Taipei - January 29, 2026
In the last 24 hours, a tweet from an Anthropic employee sparked a fascinating debate. The revelation? Anthropic runs on Workday.
For those who haven't had the "pleasure" of using Workday, let me explain: It is widely considered one of the clunkiest, least intuitive enterprise systems in existence. Its UX feels like it is trapped in the early 2000s. This leads to an obvious question: "If Anthropic has Claude, which can write entire applications in minutes, why don't they just build their own, better HR system?"
The answer kills the "SaaS is Dead" narrative.
1. The "Code" is Not the Product
The "SaaS is Dead" crowd argues that because AI drives the cost of coding to zero, no one will pay for software anymore. Everyone will just "prompt" their own CRM or HR tool into existence.
This is a fundamental misunderstanding of what Enterprise SaaS actually is. Enterprise SaaS is not about software. It is about Liability Absorption.
2. The Moat is Complexity, Not Utility
Why doesn't Anthropic build its own HR platform? Because an HR platform isn't just a database of employee names. It is a real-time legal engine.
To build a compliant HR system, you don't just need Python; you need to codify:
- Labor laws across 50 US states.
- Employment regulations in 100+ countries.
- Tax codes that change every quarter.
- Healthcare benefit structures that update annually.
The Risk: One wrong classification of a contractor versus an employee can lead to a seven-figure lawsuit. The Reality: No engineering team wants to own that risk.
Workday’s moat isn't its (terrible) UI. Its moat is that they have an army of lawyers and accountants updating the backend every time a tax law changes in Ohio or France. You aren't paying Workday for software. You are paying them to handle the Regulatory Complexity so you don't have to.
3. Maintenance > Creation
Any senior engineer knows that writing code is the easy part. Maintaining code is the hell.
If Anthropic built their own HR tool, they would need a dedicated team just to patch the system every time a local government changed a payroll regulation. That is "Maintenance Debt" that brings zero competitive advantage to their core mission of building AGI.
In the AI Era, the "Feature-Thin" SaaS wrappers will die. But the "Compliance-Heavy" SaaS—the boring, unsexy systems that handle taxes, legal, and logistics—will become even more entrenched.
4. The Rise of the FDE (Forward Deployed Engineer)
This brings me to a career insight. If pure coding is being commoditized, where is the value?
It lies in the intersection of Technical Skill and Domain Knowledge. We are bullish on the role of the FDE (Forward Deployed Engineer). These are engineers who don't just push code; they understand the "Boring Stuff"—the tax laws, the supply chain logistics, the medical compliance protocols.
- A coder can build a form.
- An FDE knows why the form needs a specific disclaimer for users in California.
Conclusion: Boring is Safe
Anthropic using Workday is the ultimate validation that SaaS is not dead. It is just bifurcating. If your SaaS only offers a "UI," AI will replace you. If your SaaS offers "Regulatory Shielding," you are immortal.
Don't bet against the boring stuff.
Mercury Technology Solutions: Accelerate Digitality.