Halcyon · 14 hours ago
Agent Engineer- Surveyor Focused
United States
Full-time
Remote
Mid Level
$150K/yr - $185K/yrHalcyon is the industry’s first dedicated, adaptive security platform focused on stopping ransomware. They are seeking an Agent Engineer with a focus on surveyor tasks to help build and evolve systems that power their endpoint agents.
Artificial Intelligence (AI)ComputerCyber SecurityNetwork SecuritySoftware
Responsibilities
Core Agent Platform Development: Design, build, and maintain scalable, cross-platform systems and services—primarily in Rust—that support endpoint tooling, secure bi-directional agent–cloud communication, and enterprise alerting capabilities. Contribute to components across their lifecycle, with a focus on implementation, reliability, and performance in real-world customer environments. Collaborate closely with backend and product teams to ensure seamless integration with Halcyon’s core services, while emphasizing security, efficiency, and operational quality
Cross-Platform Code Contribution: Work with multi-platform logic in Rust while ensuring compatibility and optimal performance across different operating systems and architectures
Debugging & Optimization: Use logs, debuggers, and profiling tools to analyze performance, diagnose issues, and ensure correct behavior across all supported platforms
Test & Maintain Code Quality: Write unit and integration tests for your code, adhering to consistent coding style guidelines and overall product architecture
Team Collaboration: Communicate effectively with other developers and teams to ensure the component integrates well within the overall product architecture and maintains interoperability across platforms
Qualification
Required
Ability to develop high-quality, production-ready code in Rust
Ability to work independently and take ownership of tasks from design through delivery
Experience or familiar with Windows, Linux and/or macOS APIs
Knowledge and experience with the following Rust crates: threading, async, tokio
Strong verbal and written communication skills
Preferred
Experience developing production systems in Python
Experience with system-level programming and OS internals
Familiarity with SQL
Knowledge of additional languages (C++)
Knowledge of the Linux, macOS, or Windows kernel
Knowledge of endpoint security concepts and threat detection
Benefits
Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents.
401k plan with 3% employer match
Short and long-term disability coverage, basic life and AD&D insurance plans.
Medical and dependent care FSA options.
Flexible PTO policy
Parental leave
Generous equity offering
Company
Halcyon
Halcyon is an anti ransomware and cyber resilience platform that eliminates the business impact of ransomware.
Founded in 2021
201-500 employees
H1B Sponsorship
Halcyon has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
$190MKey Investors
Bain Capital Ventures
2024-11-25Series C· $100M
2023-12-19Series B· $40M
2023-04-20Series A· $44M
Leadership Team
Jon Miller
CEO and Founder
Ryan Smith
CTO + Co-Founder
Recent News
2026-01-14
2025-12-02
2025-11-08
Company data provided by crunchbase