Halcyon is hiring a Windows Sustaining Engineer to support both the development and long-term maintenance of the Halcyon Anti-Ransomware platform on Windows. This role is central to diagnosing complex customer issues, optimizing performance, and ensuring product quality.

What You'll Do

Diagnose and triage customer issues by analyzing logs, crash dumps, and diagnostic data to identify root causes and drive timely resolutions.
Work closely with customer support, sales teams, product management, and engineering teams to resolve customer issues, improve product quality, and ensure seamless integration across components.
Write kernel-mode and user-mode code that transforms messages, processes data, interfaces with components in different languages, and interacts with Web APIs.
Use profiling tools to optimize code performance.
Write unit and integration tests, adhering to consistent coding styles and architectural guidelines.

What We're Looking For

Proven ability to troubleshoot and debug complex systems effectively.
Proficiency with windbg in both user-mode and kernel-mode.
Experience identifying performance bottlenecks using Windows Performance Analyzer.
Strong written and verbal communication skills.
Ability to develop high-quality code in C++.
Experience programming in Rust or a strong desire to learn Rust.
Knowledge of Windows NT internals.