System Engineer (MacOS, Modern C++, Sensor Engineering)

HCLTech; Sunnyvale (CA); A distancia; USD 82.000 - 172.000; Jornada completa

Descripción de la vacante

HCLTech in Sunnyvale, CA is seeking a highly talented System Engineer (MacOS, Modern C++, Sensor Engineering) to advance security on-device. You will work on a macOS sensor that monitors activity, blocks malicious behavior, and streams telemetry to the cloud.

The role requires high concurrency, performance focus, and cross-platform code with Windows and Linux. Qualified candidates will have strong C++17/20 and Swift 6, macOS systems programming, and experience with XPC, launchd, and Instruments

Formación

• Languages: modern C++ (C++17/20) and Swift 6; include Objective-C++ bridging.
• macOS systems programming with Foundation/CoreFoundation, GCD, POSIX APIs, Mach IPC, launchd, and XPC.
• Performance and debugging using Instruments, os_signpost, LLDB, crash logs, and XCTest.

Responsabilidades

• Work on the macOS sensor, an on-device security agent, with high concurrency.
• Monitor file, process, network and identity activity; block malicious behavior.
• Stream telemetry to the cloud and integrate with Windows/Linux codebase.

Conocimientos

Modern C++

Swift 6

Obj-C++ bridge

macOS systems

GCD & pthreads

XPC NSXPC

Launchd Daemons

Security/Endpoint

Network Extension

Mach IPC

Herramientas

Instruments

LLDB

Xcode

xcodebuild CI

Descripción del empleo

HCLTech is looking for a highly talented and self- motivated (System Engineer (MacOS, Modern C++, Sensor Engineering)) to join it in advancing the technological world through innovation and creativity.

Job REQ ID: 187608

Position Type: Full Time

Location: Sunnyvale, CA/ Remote

About the Work:

You’ll work on the macOS sensor, an on-device security agent. It monitors file, process, network and identity activity, blocks malicious behavior, and streams telemetry to the cloud. The sensor runs entirely in user space as a System Extension. Much of the code is shared with Windows and Linux. The work requires high concurrency, high reliability, careful attention to memory & CPU usage and performance.

Required Qualification:

• Languages: modern C++ (C++17/20) and Swift 6 (async/await, actors, strict concurrency checking). Also Objective-C++ to bridge Swift, C++ and C APIs.
• macOS systems programming: Foundation and CoreFoundation, GCD and pthreads, POSIX/BSD APIs, Mach IPC, launchd daemons and agents, and XPC (C API and NSXPCConnection).
• Performance, debugging and test:
• Profiling CPU and memory with Instruments and os_signpost. o Debugging with LLDB, crash logs and os_log. o XCTest, sanitizers, fuzzing, and xcodebuild-based CI.
• Apple Silicon and Intel.
• Experience with codebases shared across Mac, Windows and Linux.

Preferred Qualification:

• Process model and IPC: launchd daemons and agents, and XPC (C API and NSXPCConnection).
• Endpoint Security and System Extensions: Endpoint Security clients handling both blocking (AUTH) events and notification events, user/MDM approval, upgrades.
• Network Extension: content filters, both flow-level (NEFilterDataProvider) and packet-level (NEFilterPacketProvider), and Network.framework.
• Security and crypto: Verifying code signatures (SecCode / SecStaticCode) and validating certificates (SecTrust), Keychain, Entitlements, hardened runtime, and macOS privacy permissions.
• Devices and storage: IOKit (hardware and device enumeration) and DiskArbitration (disk and volume events).
• Packaging and deployment: installers, notarization, and MDM configuration profiles deployed through Jamf, Intune or similar tools.
• Performance, debugging and test: Profiling CPU and memory with Instruments and os_signpost, Debugging with LLDB, crash logs and os_log, XCTest, sanitizers, fuzzing, and xcodebuild-based CI.

Nice to have:

• UI: SwiftUI and AppKit apps and app extensions
• Testing against macOS and Xcode betas before public release.

Pay and Benefits

• Pay Range Minimum: $82000/annum
• Pay Range Maximum: $172000/annum

HCLTech is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law. Should any applicant have concerns about discrimination in the hiring process, they should provide a detailed report of those concerns to [e-mail] for investigation.

A candidate’s pay within the range will depend on their skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to company policies. In addition, this role is eligible for the following benefits subject to company policies:

• medical, dental, vision, pharmacy, life, accidental death & dismemberment, and disability insurance
• employee assistance program
• 401(k) retirement plan
• 10 days of paid time off per year (some positions are eligible for need-based leave with no designated number of leave days per year)
• 10 paid holidays per year

How You’ll Grow

At HCLTech, we offer continuous opportunities for you to find your spark and grow with us. We want you to be happy and satisfied with your role and to really learn what type of work sparks your brilliance the best. Throughout your time with us, we offer transparent communication with senior-level employees, learning and career development programs at every level, and opportunities to experiment in different roles or even pivot industries. We believe that you should be in control of your career with unlimited opportunities to find the role that fits you best