Senior Product Security Engineer

What we do :

Halcyon is the industry's first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware.

Who we are :

Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers.

As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you're interested in and we'll work a plan to meet your needs.

About the Role

Halcyon's goal is to deliver an anti-ransomware solution that breaks new ground in what a security product can achieve. Aligned with this mission, we're hiring a Senior Product Security Engineer to ensure our most innovative defenses make it into every release. These cutting-edge capabilities will keep our customers ahead in the fight against ransomware.

Key Responsibilities

• Endpoint Hardening & Testing

Design and implement security test harnesses from scratch to simulate real-world ransomware behavior

Triage, reproduce, and analyze security findings against our agent and libraries

Deep understanding of Windows internals (ring transitions, memory management, Win32 API) with focus on user-mode security hooks

Required Technical Skills

Bonus Technical Skills

Why Join Us?

Benefits :

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

Base Salary Range : $190k-$250k + 10% bonus + equity

In accordance with applicable state and federal laws, the range provided is Halcyon's reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses / incentives, and equity in the Company.

We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.