About Act
Act Security is an action-centric cloud security company that eliminates excessive access sprawl across cloud infrastructure by enforcing deterministic boundaries for humans, workloads, and AI agents. Rather than surfacing findings, the platform removes the conditions that make risk exploitable, grounded in how the business actually operates and enforced through cloud-native controls customers already own. It targets enterprises seeking to eliminate attack paths, safely scale AI adoption, and maintain continuous, audit-ready compliance.
Company details
Funding
Total raised
$60M
Last stage
Series A
Investors
Founders
Jonathan Langer
Co-founder and CEO of Act Security; previously co-founded Medigate (medical device security), which was acquired by Claroty for ~$400M in January 2022, where he held a senior leadership role post-acquisition.
Itay Kirshenbaum
Co-founder and CTO of Act Security; previously co-founded Medigate alongside Jonathan Langer and held a senior role at Claroty post-acquisition.
Stephan Goldberg
Co-founder and CPO of Act Security; joined Medigate as one of its first employees and continued at Claroty post-acquisition before co-founding Act.
What happens next.
No applications, no recruiter spam. Just the intro.
Confirm the fit
A few questions to make sure this role is the right shape for you. Two minutes.
I pitch you to the company
I write the intro, send it to the founder, and handle the back-and-forth.
A meeting lands on your calendar
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.