Staff Engineer, Endpoint Agent

Summary

Join Halcyon, a leading anti-ransomware company, as a Staff Engineer to spearhead the design and development of our cross-platform endpoint agent. This pivotal role will shape the technical architecture and future of our Windows, Linux, and macOS protection. You will own the technical vision and architecture of the endpoint agent, collaborate with cross-functional teams, and lead complex engineering efforts. Mentorship of other engineers and troubleshooting complex issues are also key responsibilities. This position requires expertise in low-level systems and experience developing endpoint security products. Halcyon offers a comprehensive benefits package including full healthcare coverage, 401k, disability and life insurance, flexible PTO, parental leave, and generous equity.

Requirements

• Experience developing high-quality code in Rust (preferred) or C++
• Proven track record developing endpoint security products
• Experience in a staff-level or principal engineering role , with a focus on architecture and cross-team collaboration
• Expert-level knowledge in low-level systems, including kernel or driver development on Windows, Linux, or macOS
• Strong written and verbal communication skills, with the ability to influence technical and non-technical stakeholders

Responsibilities

• Own the technical vision and architecture of Halcyon’s cross-platform endpoint agent, covering user-space services, kernel drivers, and tooling
• Collaborate with cross-functional teams including researchers, product managers, and engineers to design and implement cutting-edge anti-ransomware features
• Lead complex, cross-platform engineering efforts, balancing performance, scalability, and security
• Mentor and support the growth of engineers across the endpoint team
• Troubleshoot and resolve complex, high-impact technical issues during feature development
• Define, implement, and improve engineering processes and standards across the team
• Champion technical excellence and product quality, advocating for best practices in all aspects of development

Benefits

• Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents
• 401k plan with a generous employer contribution
• 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