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Co-founder & CEO

Shan Kulkarni

Shantanu (Shan) Kulkarni is the co-founder and Chief Executive Officer of Nullify.

Nullify finds, proves and fixes product security vulnerabilities, then drives every pull request to the right owner until it merges.

Expertise

Shan writes about how security teams run a product security program: what an AI security harness really costs to build in-house, why developers tune out security alerts, how to cut a sprawl of overlapping scanners and why exploitability is only half of a triage decision.

At Nullify

Shan co-founded Nullify with CTO Tim Thacker and leads the company. Nullify is headquartered in San Francisco and has an office in Sydney, Australia.

Latest from Shan Kulkarni

10 articles on the Nullify blog.

Industry Insights

MTTR vs MTBF: What Each Metric Measures and How to Improve Both in Security

Shantanu Kulkarni · October 28, 2026

Industry Insights

How to Reduce MTTR for Critical Vulnerabilities Without Burning Out Your Engineers

Shantanu Kulkarni · October 28, 2026

Industry Insights

Stop Building Internal Security Infrastructure

Shantanu Kulkarni · October 7, 2026

Industry Insights

Build vs. Buy in the Age of AI Security

Shantanu Kulkarni · October 7, 2026

Industry Insights

The True Cost of an AI Security Harness

Shantanu Kulkarni · October 7, 2026

Industry Insights

Why Developers Ignore Security Alerts (And How to Fix It)

Shantanu Kulkarni · September 30, 2026

Industry Insights

How to Solve AppSec Tool Sprawl in 2026

Shantanu Kulkarni · September 30, 2026

Let the Cheap Model Look

Shantanu Kulkarni · August 21, 2026

Exploitability Is Only Half the Triage Decision

Shantanu Kulkarni · July 29, 2026

The Missing Layer in AI Security: Execution

Shantanu Kulkarni · April 9, 2026