Endpoint Engineer (MacOS & Windows) jobs in United States
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Nightfall AI · 2 months ago

Endpoint Engineer (MacOS & Windows)

positionUnited States
timeFull-time
remoteRemote
senioritySenior Level
date5+ years exp

Nightfall AI is an AI-native platform focused on data loss prevention and insider risk management. The Endpoint Engineer role involves designing and developing data exfiltration prevention applications for MacOS and Windows, ensuring reliability and security in a cutting-edge environment.

AnalyticsArtificial Intelligence (AI)Cloud Data ServicesData Center AutomationMachine LearningSaaS
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H1B Sponsor Likelynote

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

Qualification

Objective-CSwiftC/C++Endpoint Security System ExtensionWDFKernel-level debuggingRustGoPythonReverse engineeringProblem decomposition

Required

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

Company

Nightfall AI

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Nightfall AI the AI-native, all-in-one data loss prevention platform.
dateFounded in 2018
location
San Francisco, California, USA
people-size51-200 employees
web-link
https://www.nightfall.ai

H1B Sponsorship

Nightfall AI 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
2025 (3)
2024 (5)
2023 (5)
2022 (3)
2021 (2)
2020 (1)

Funding

Current Stage
Growth Stage
Total Funding
$60.3M
Key Investors
WestBridge CapitalBain Capital Ventures,Venrock
2022-08-10Series B· $40M
2019-11-07Series A· $20.3M
2018-11-26Seed

Leadership Team

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Rohan Sathe
Co-Founder & CEO
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Isaac Madan
Co-Founder
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Recent News

PR Newswire
Nightfall Unveils AI Browser Security Solution to Stop Data Exfiltration in Real Time
2026-01-22
baincapitalventures.com
Nightfall: Bain Capital Ventures
2026-01-20
Venrock
Venrock Portfolio
2025-12-23
Company data provided by crunchbase