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Added 7 hours ago
Information Assurance (IA) Security Engineer
Unity Technologies Corp LLC
Myersville, MD
Added 7 hours ago
Mission Security Engineer
BOOZ, ALLEN & HAMILTON, INC.
Lexington Park, MD
Everyone knows security needs to be "baked in" to a system architecture-you actually know how to bake it in. You can identify and implement ways to harden systems and reduce their attack…
Added 7 hours ago
SUPERVISORY ELECTRONICS ENGINEER
U.S. Air Force - Agency Wide
Lackland AFB, TX
…GG-14 position in the Defense Civilian Intelligence Personnel System (DCIPS). The GG-14 duties for the "Supervision/Management" work category are at the "Senior" work level and are…
Added 7 hours ago
Senior Engineer, Cybersecurity Engineering / Onsite / Carrollton, TX
Kelly Services
Carrolton, TX
If you are an engineer who thrives at the intersection of cybersecurity, systems engineering, and mission-critical physical infrastructure, this role offers true cradle-to-grave project…
Added 7 hours ago
RC
Part Time Software Platform Engineer Co-Op (Remote)
RTX Corporation
richardson, TX
- Part-time
Experience with Cyber security Concepts is a Plus
Added 9 hours ago
Systems Engineer - NBC6 & T51
NBC Universal
Miramar, FL
Ensure compliance with NBCUniversal cyber security policies and standards.
Added 9 hours ago
Lead Electrical Engineer
L3Harris
Orlando, FL
…technology solutions connecting the space, air, land, sea and cyber domains in the interest of national…
Added 10 hours ago
Undersea Systems Security Engineer
BOOZ, ALLEN & HAMILTON, INC.
Washington, DC
Join our team as a Systems Security Engineer supporting cybersecurity and systems security analysis for U.S. Navy afloat and undersea platforms. You will help design, assess, and implement…
Added 10 hours ago
Lead Engineer - Operational Technology Network Security
AmerisourceBergen
Conshohocken, PA
…animals everywhere. Apply today! Job Details Summary: The Lead Engineer - Operational Technology Network Security is responsible for designing, implementing, maintaining, and continuously…
Added 11 hours ago
IG
Secret Junior Rust Developer
Insight Global
Aberdeen Proving Ground, MD
- From $47 USD / hour
o Insight Global is looking for a Junior Cyber Software Engineer for a client in Aberdeen, MD. This person will spend their day developing secure, efficient software primarily in Rust,…
Added 11 hours ago
IG
Secret Cross Domain Solutions Engineer
Insight Global
Aberdeen Proving Ground, MD
- From $82 USD / hour
o Insight Global is looking for a Cross Domain Solutions Engineer for a client in Aberdeen, MD. This person will spend their day engineering, integrating, testing, and troubleshooting Cross…
Added 11 hours ago
Specialist, Propulsion System/Rocket Test Engineer
L3Harris
Orange, VA
…technology solutions connecting the space, air, land, sea and cyber domains in the interest of national…
Added 11 hours ago
Software Test Engineer (Integrated Training Systems) - 30882
Huntington Ingalls Industries
Virginia Beach, VA
HII Mission Technologies’ System Integration group is seeking a Software Test Engineer to join our Integrated Training Systems Software Development team. In this role, you’ll support the…
Added 11 hours ago
Model-Based Systems Engineer
Gromelski & Associates, Inc.
Manassas, VA
The system engineer position is a blend of requirements management and hands on engineering. Manage requirements using JIRA, including estimating, tracking and reporting progress towards…
Added 11 hours ago
Infrastructure Systems Administrator
BOOZ, ALLEN & HAMILTON, INC.
Chantilly, VA
Your combination of people skills and system administrator and cybersecurity expertise makes you the team hero, solving one problem after another. What if you could use those skills to…
Added 11 hours ago
Cyber Security Engineer
CACI International
High Point, NC
…DoD networks and cybersecurity posture in support of national security. We are looking for an Engineer willing to travel and maintain security at customer…
Added 11 hours ago
Network Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fayetteville, NC
As a Network Engineer, you will help maintain and execute a network of simulators and modeling capabilities focused on providing exercise capabilities for various units. These simulators…
Added 12 hours ago
AS
Information System Security Engineer (ISSE)
AMERICAN SYSTEMS
Colorado Springs, CO
- $31,533 USD / year
Configure, deploy, and validate security tools and technologies to monitor, detect, and protect against cyber threats.
Added 12 hours ago
Principal Mechanical Engineer/Sr. Principal Mechanical Engineer
Northrop Grumman
Oklahoma City, OK
Coordinate between several internal and external stakeholder groups (Software Development, System Test, Cyber Operations, Procurement, etc.) to achieve contractual commitments
Added 13 hours ago
Associate, Electrical Engineer 1
L3Harris
Yorba Linda, CA
…technology solutions connecting the space, air, land, sea and cyber domains in the interest of national…
Added 13 hours ago
SUPERVISOR
Space and Naval Warfare Systems Command
Point Loma Complex, CA
Added 13 hours ago
SUPERVISOR
Space and Naval Warfare Systems Command
Point Loma Complex, CA
Added 13 hours ago
SUPERVISOR
Space and Naval Warfare Systems Command
Point Loma Complex, CA
Added 13 hours ago
SUPERVISOR
Space and Naval Warfare Systems Command
Point Loma Complex, CA
Added 13 hours ago
Mechanical Thermal Analysis Engineer II-IV
Kratos Defense & Security Solutions, Inc.
Roseville, CA
Kratos Defense & Security Solutions, Inc., is a leading defense technology company focused on unmanned systems, satellite communications, cyber security/warfare, microwave electronics,…

Jobgether

macOS Endpoint Security Engineer

Remote, United States

$65 to $70 USD / hour

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Job details

Pay: $65 to $70 USD / hour
Experience: 6–10 years of professional software engineering experience, with consideration for more senior candidates.
Posting language: English
Posted: Oct 30, 2026

Original job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a macOS Endpoint Security Engineer based in the United States.

We are looking for an experienced macOS Endpoint Security Engineer to contribute to the development of advanced endpoint protection technology. In this role, you will work on a sophisticated security sensor designed to monitor file, process, network, and identity activity, prevent malicious behavior, and deliver security telemetry to cloud-based systems. You will focus on low-level macOS systems programming, building reliable and high-performance software using modern C++ and Swift. Working within a cross-platform engineering environment, you will help maintain shared codebases supporting macOS, Windows, and Linux. The position requires strong expertise in concurrency, memory management, debugging, and performance optimization. This is an opportunity to tackle complex cybersecurity challenges while strengthening the security and reliability of enterprise devices.

Accountabilities:

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Develop, enhance, and maintain macOS endpoint security components using modern C++ (C++17/C++20), Swift 6, and Objective-C++.

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Contribute to the development of an endpoint security sensor that monitors file, process, network, and identity activities, blocks malicious behavior, and transmits security telemetry.

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Implement and maintain macOS System Extensions and Endpoint Security clients, including authorization (AUTH) events, notification events, user and MDM approval workflows, and extension upgrades.

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Develop and optimize system-level components using Foundation, CoreFoundation, Grand Central Dispatch (GCD), pthreads, POSIX/BSD APIs, Mach IPC, launchd, and XPC.

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Build and maintain network security capabilities using Network Extensions, including flow-level and packet-level content filtering, and Network.framework.

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Implement security mechanisms involving code-signature verification, certificate validation, Keychain, entitlements, hardened runtime, and macOS privacy permissions.

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Support hardware and storage-related functionality through IOKit and DiskArbitration.

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Optimize application performance, concurrency, CPU utilization, and memory consumption to ensure high reliability and minimal system overhead.

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Investigate and resolve complex technical issues using Instruments, os_signpost, LLDB, crash logs, and os_log.

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Develop and maintain automated tests using XCTest, sanitizers, fuzz testing, and xcodebuild-based continuous integration pipelines.

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Ensure software compatibility across Apple Silicon and Intel-based Mac systems.

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Collaborate with cross-platform engineering teams to maintain shared codebases supporting macOS, Windows, and Linux.

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Contribute to application packaging, installation, notarization, and deployment through MDM solutions such as Jamf and Microsoft Intune.

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Support software quality, secure development practices, and production reliability throughout the development lifecycle.

Requirements:

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6–10 years of professional software engineering experience, with consideration for more senior candidates.

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Strong proficiency in modern C++, particularly C++17/C++20, and Swift 6, including async/await, actors, and strict concurrency checking.

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Hands-on experience with Objective-C++ and integrating Swift, C++, and C APIs.

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Strong macOS systems programming knowledge, including Foundation, CoreFoundation, GCD, pthreads, POSIX/BSD APIs, and Mach IPC.

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Experience with launchd daemons and agents, XPC C APIs, and NSXPCConnection.

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Practical experience in at least one or more of the following areas:

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Endpoint Security and System Extensions: Endpoint Security clients, authorization and notification events, extension approvals, MDM integration, and upgrades.

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Network Security: Network Extension content filters, NEFilterDataProvider, NEFilterPacketProvider, and Network.framework.

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Process Management and IPC: launchd services, daemons, agents, and XPC communication.

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Security and Cryptography: SecCode, SecStaticCode, SecTrust, Keychain, entitlements, hardened runtime, and macOS privacy permissions.

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Devices and Storage: IOKit, hardware and device enumeration, DiskArbitration, and disk or volume event handling.

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Packaging and Deployment: macOS installers, application notarization, and MDM configuration profiles through Jamf, Intune, or similar platforms.

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Strong experience with performance profiling and debugging tools, including Instruments, os_signpost, LLDB, crash logs, and os_log.

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Familiarity with XCTest, sanitizers, fuzz testing, and xcodebuild-based CI workflows.

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Experience developing and maintaining large, shared codebases across macOS, Windows, and Linux.

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Understanding of operating-system internals, concurrency, memory management, and performance-sensitive software development.

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Ability to troubleshoot complex technical problems and deliver reliable, maintainable solutions.

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Strong analytical, problem-solving, and collaboration skills, with the ability to work effectively in a distributed engineering environment.

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Additional experience with SwiftUI, AppKit, application extensions, and testing against macOS or Xcode beta releases is advantageous.

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Previous experience developing and shipping endpoint detection and response (EDR), antivirus (AV), network security, or device-management products is highly desirable.

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Must be a U.S. citizen or Green Card holder.

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Must be available to work remotely during Pacific Standard Time (PST) business hours.

Benefits:

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Competitive compensation: Hourly W-2 contract rate of $65–$70.

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Remote flexibility: Fully remote working arrangement within the United States.

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Technical challenges: Opportunity to work on sophisticated endpoint security and cybersecurity technologies.

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Professional growth: Exposure to advanced macOS systems programming, operating-system internals, and cross-platform software engineering.

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Industry impact: Contribute to the development of security solutions designed to protect enterprise devices against evolving cyber threats.

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Collaborative environment: Work alongside experienced engineers on complex, large-scale technical projects.

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Specialized expertise: Strengthen your knowledge of endpoint protection, network security, and high-performance systems development.

How Jobgether works:

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

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More about this job

Skills

Apple macOS
Symantec Endpoint Protection
C++
Swift
Microsoft Windows
Linux
Debugging
Objective C
Mobile device management
CI/CD
Packaging
C
Communication skills
Software development
Troubleshoot
Problem solving
Collaboration
Xcode

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