Our Mission is to Help Businesses Protect Themselves in the Cloud.


Panther is an engineering-first company. Our roots come from building tools to solve security issues at scale. We work hard to instill reliability and best practices into our code in order to uphold confidence in our products.

Our Principles:

Cloud Scale

Panther is built for organizations of any size by utilizing serverless technologies to enable small teams to operate on a massive scale.

Open and Transparent

Panther follows an open-source model to provide the highest amount of transparency on how your most critical data is handled.

Security Built into our DNA

Our team comprises security engineers that develop with strong security principals in mind.

User Experience

Existing security tools in the market are either too clunky or confusing. At Panther, we’re obsessed with making tools that security professionals find delightful.

“When security issues inevitably occur, a fast response can make an enormous difference in mitigating the damage done. Panther bridges the gap between security event detection and the platforms operations teams already use to mount structured and fast responses. It is a must-have for any business adopting a DevSecOps mindset.”

Andrew Miklas, cofounding CTO PagerDuty


At Panther, we want to help companies stay secure. We are a group of practitioners who have lived these problems and built solutions. Our team comprises prior engineers from companies such as Airbnb and Amazon.

Jack Naglieri

Founder, CEO

Austin Byers

Lead Backend Engineer

William Lowe

Head of Business Operations

Kostas Papageorgiou

Senior Software Engineer

Nicholas Hakmiller

Security Engineer

Aggelos Arvanitakis

Frontend Engineer

Russell Leighton

Principal Software Engineer

Kartikey Pandey

Head of Content

Sugandha Lahoti

Technical Writer

Alex Mylonas

Senior Software Engineer

Nick Angelou

Senior Security Engineer


S28 Capital

Innovation Endeavors

Fathom Capital

645 Ventures

Interested in joining our team?