Senior Linux/MAC Software Engineer

Forcepoint; Cork; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Competitive salary and benefits package

Collaborative work environment

Flexible work arrangements

Job summary

Forcepoint is seeking a highly skilled Senior macOS/Linux Developer to design, develop, and maintain advanced Data Loss Prevention (DLP) and network security products. Candidates should have a strong understanding of macOS internals, network protocols, and security frameworks.

The ideal applicant will possess a Bachelor’s or Master’s degree in Computer Science, with 5+ years of software development experience. The role offers a competitive salary, benefits, and flexible work arrangements.

Qualifications

• 5+ years of software development experience, with at least 3 years focused on macOS internals.
• Deep knowledge of macOS system architecture, including kernel programming.
• Strong understanding of network protocols (TCP/IP, HTTP/HTTPS, DNS).

Responsibilities

• Design and implement macOS-specific components for DLP and network security products.
• Develop low-level system tools using Apple's modern security frameworks.
• Collaborate with cross-functional teams to deliver robust security solutions.

Skills

macOS internals

C++

Objective-C

Swift

network security

debugging

Education

Bachelor's or Master's degree in Computer Science or related field

Tools

Endpoint Security Framework

Network Extension Framework

Google Test

Catch2

Job description

Overview

Forcepoint is seeking a highly skilled Senior macOS/Linux Developer with deep expertise in macOS/Linux internals to design, develop, and maintain advanced Data Loss Prevention (DLP) and network security products. The ideal candidate will have a strong understanding of macOS system architecture, kernel-level programming, and network protocols, with a passion for building secure, high-performance solutions to protect sensitive data and mitigate cyber threats.

Responsibilities

• Design and implement macOS-specific components for DLP and network security products, ensuring seamless integration with macOS internals.
• Develop low-level system tools using Apple\'s modern security frameworks (Endpoint Security, Network Extension, System Extensions) to monitor and control data flows, network traffic, and system activities.
• Collaborate with cross-functional teams to deliver robust security solutions.
• Implement and maintain network filtering, packet inspection, and proxy capabilities on macOS using Network Extension Framework and App Proxy Provider.
• Ensure compliance with macOS security frameworks and Apple\'s code signing and entitlements model.
• Debug and troubleshoot complex system-level issues related to macOS performance, security, and compatibility (IPC, daemon lifecycle, and code injection).
• Stay updated on macOS updates, API deprecations, security vulnerabilities, and industry trends to ensure product resilience and compliance.
• Contribute to code reviews, documentation, and best practices for secure software development in C++14, Objective-C++, and Swift.
• Work with QA teams to ensure robust testing and validation of security features using Google Test and Catch2 frameworks.

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 5+ years of software development experience, with at least 3 years focused on macOS internals.
• Deep knowledge of macOS system architecture, including kernel programming, system calls, and macOS-specific APIs.
• Proficiency in C, C++, Objective-C, and/or Swift for macOS development.
• Strong understanding of network protocols (TCP/IP, HTTP/HTTPS, DNS) and network security principles.
• Experience with macOS security frameworks (Endpoint Security Framework, System Extensions, Network Extension Framework).
• Hands-on experience developing DLP solutions (data monitoring, file access control, content filtering).
• Proficiency with Endpoint Security Framework and Network Extension Framework; familiarity with legacy kernel extensions (kexts) is a plus but not required.
• Experience with system-level debugging tools (lldb, kdebug/ktrace, Instruments) for diagnosing macOS daemons and system extensions.
• Knowledge of encryption, secure communication protocols, and data protection techniques.
• Strong problem-solving skills and ability to debug complex system-level issues.
• Excellent communication and collaboration skills in a fast-paced, team-oriented environment.

Preferred Qualifications

• Experience with cross-platform security solutions (macOS, Windows, Linux).
• Familiarity with cloud-based security services and integration (e.g., AWS, Azure).
• Knowledge of macOS virtualization technologies (Hypervisor Framework).
• Experience with threat detection, malware analysis, or intrusion prevention systems.
• Understanding of compliance standards (GDPR, HIPAA, PCI-DSS) and their impact on DLP solutions.
• Contributions to open-source projects or a portfolio of macOS-related development work.

Nice-to-Have Skills

• Experience with scripting languages (Python, Bash) for automation and testing.
• Familiarity with Agile/Scrum and DevSecOps practices.
• Background in reverse engineering or vulnerability research on macOS systems.

What We Offer

• Competitive salary and benefits package (health, dental, vision, etc.).
• Opportunity to work on cutting-edge cybersecurity technologies.
• Collaborative and innovative work environment with opportunities for growth.
• Flexible work arrangements (remote/hybrid options, depending on location).
• Access to the latest tools and technologies for macOS development.

Equal Employment Opportunity

The policy of Forcepoint is to provide equal employment opportunities to all applicants and employees without regard to race, color, creed, religion, sex, sexual orientation, gender identity, marital status, citizenship status, age, national origin, ancestry, disability, veteran status, or any other legally protected status and to affirmatively seek to advance the principles of equal employment opportunity. Forcepoint is committed to being an Equal Opportunity Employer and offers opportunities to all job seekers, including job seekers with disabilities. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation by emailing [e-mail]. Applicants must have the right to work in the location to which you have applied.