Niall O'higgins is a seasoned infrastructure and security leader with 12 years building resilient, high-throughput systems and developer platforms from startup to scale. Currently Director of AppSec, SRE & Infra at Replit, he has previously founded and led companies focused on reliability and performance while scaling operations at Coinbase—where he grew the first SRE org, slashed blockchain onboarding times, and helped build Rosetta API adopted by multiple chains. He combines hands-on systems engineering (from kernel and embedded work to cloud migrations and Datadog APM rollouts) with product-minded leadership that accelerates developer velocity and incident maturity. Comfortable as a founder, fractional CTO, or exec, he has repeatedly delivered major migrations, security programs, and hiring initiatives that translate technical debt into durable platform capability. Based in San Francisco with a BA in Computer Science and French, he brings a practical blend of open-source roots and venture-stage diligence to complex infra and AppSec problems.
12 years of coding experience
18 years of employment as a software developer
BA Computer Science Computer Science French, BA Computer Science Computer Science French at University College Dublin
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Niall O'higgins - Director - AppSec, SRE & Infra at Replit