As a Backend Engineer at Nightfall, you’ll enable us to deliver our platform reliably, securely, and at a massive scale. You’ll help architect low latency, real-time microservices that process & detect sensitive data at scale.

This is a role in the team that owns data exfiltration prevention on endpoints and requires background in one of the following platforms: MacOS or Windows. Engineers in this team own the design and development of core features on Nightfall’s Data Exfiltration platform. This requires leveraging file & device interfaces and requires in-depth understanding of Operating System internals.

Responsibilities

• Designing and developing data exfiltration prevention apps, drivers, system extensions and services on MacOS or Windows.
• Maintaining and evolving mission-critical agents on endpoints.
• Own complex features from design to delivery and troubleshoot issues from customers.
• Designing and building secure software with cross-platform deliverables (Windows, MacOS).
• Writing and maintaining documentation about internal and public services.

Requirements

• Expertise in one of the following: Objective-C, Swift on MacOS or C/C++ on Windows.
• Demonstrable expertise in developing agents on one of MacOS or Windows.
• On MacOS, practical development experience with Endpoint Security System Extension is required. A plus will be knowledge of IOKit and of MacOS VFS model.
• On Windows, practical development experience with WDF (Windows Driver Frameworks), filter drivers and familiarity with user mode apps is required.
• Readiness to learn other systems languages (e.g. Rust, Go, Python). Prior experience in one of these languages is a definite plus.
• Experience with kernel-level debugging processes and tools. Ability to use reverse engineering techniques and debugging of kernel space code.
• Ability to decompose complex business problems and own them end to end across teams.
• Minimum 5+ years of related work experience.