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Posted Aug 22, 2025

Job Title: Senior macOS Agent Engineer - Shape the Future of Ransomware Protection

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Join the Pioneers in Adaptive Security:
Halcyon is revolutionizing the cybersecurity landscape with its groundbreaking, AI-powered platform designed to stop ransomware in its tracks. As a leader in the industry, we're committed to delivering innovative solutions that safeguard our customers' digital assets.

Our Story:
Founded in 2021 by a team of seasoned cyber industry experts, Halcyon is the culmination of years of experience in battling ransomware and advanced threats. Our founding members hail from renowned companies like Cylance (now Blackberry), Accuvant (now Optiv), Fireye, and ISS X-Force (now IBM), bringing a wealth of knowledge and expertise to the table.

Embracing Remote Work:
As a remote-native, globally distributed team, we believe that talent knows no borders. We invite you to join our dynamic team and contribute your skills and passion to our mission. We're committed to creating a flexible and supportive work environment that meets your needs and fosters growth.

The Role:

We're seeking an exceptional Senior macOS Agent Engineer to play a key role in developing our cutting-edge macOS agent. This agent combines the power of macOS extensions with a user-level service written in Rust, C++, and Swift, ensuring our customers receive unparalleled protection against ransomware threats. If you're passionate about macOS security and eager to make a real impact, we want to hear from you.

Responsibilities:
Skills and Qualifications:
Bonus Skills and Qualifications:
Benefits:

Halcyon offers a comprehensive benefits package to eligible employees, including:

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

Base Salary Range: $180,000 - $240,000

Bonus Range: 10%

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're committed to building a diverse team of highly intelligent, passionate, curious, and creative individuals who share our vision for a safer digital world. As an equal opportunity employer, we welcome applications from talented individuals who are eager to make a difference.

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