[Hiring] Principal Software Engineer @Airlock Digital

Role Description

We are looking for a Principal Software Engineer to help shape the next generation of Airlock Digital’s macOS and Linux endpoint technology. This is a senior individual-contributor role with broad technical influence. You will set direction through architecture and design work, turn product and customer needs into practical engineering plans, and contribute directly by implementing features, reviewing code, and resolving complex defects.

The macOS/Linux Agent spans operating-system event monitoring and enforcement, privileged services, local policy and data management, secure communications, installation and update workflows, and platform-specific user experiences. You will bring strong macOS and Linux systems judgment to this work, build alignment around important technical decisions, and help other engineers solve difficult problems. You will work across engineering, product, QA, security, support, and cloud teams to improve product quality and customer outcomes.

Key Responsibilities

• Set and communicate the technical direction for Airlock Digital’s macOS and Linux Agents.
• Translate product and customer needs into sound designs, architectural decisions, and executable engineering plans.
• Contribute directly to the shared managed-language codebase and platform-specific components by implementing features, reviewing code, and resolving high-priority defects.
• Lead design, architecture, and code reviews.
• Build alignment around the boundaries between shared Agent capabilities and operating-system-specific integrations while maintaining security, reliability, performance, and maintainability.
• Own technical outcomes for application-control enforcement and Agent lifecycle behavior across supported macOS releases and Linux distributions.
• Diagnose difficult production issues involving privileged services, concurrency, resource usage, filesystems, process execution, operating-system security controls, package formats, and processor architectures.
• Raise the engineering bar through technical mentorship, knowledge sharing, automated testing, observability, and improvements to build, release, and diagnostic capabilities.
• Partner with product, QA, security, support, and cloud engineering to manage technical risk and coordinate delivery.

Qualifications

• 8-12+ years of professional software engineering experience, including significant experience building production systems software in one or more managed languages.
• Strong systems-engineering experience across macOS and Linux, with deep expertise in at least one platform.
• A record of designing, shipping, and sustaining security-critical endpoint software, privileged Agents, or operating-system services.
• Strong knowledge of Unix-like operating systems, including processes and signals, permissions, filesystems, services, inter-process communication, package management, and privileged execution.
• Experience integrating managed-language software with native operating-system APIs and building concurrent, event-driven software.
• Sound security judgment around code and publisher trust, cryptographic hashing, TLS and certificates, authentication and authorization, sensitive local data, secure IPC, persistence, and software updates.
• Proven technical leadership in a mature software product.
• A bachelor’s degree in computer science, software engineering or related field is preferred but not required.

Nice-to-Have Skills and Experience

• Direct experience with Apple’s Endpoint Security framework, process-execution authorization events, Full Disk Access, system extensions, entitlements, code signing, or other macOS endpoint-security capabilities.
• Direct experience with Linux fanotify, /proc, filesystem mounts and namespaces, process inspection, permission events, or comparable Linux enforcement and monitoring mechanisms.
• Proficiency with C, Objective-C, Swift, or mixed-language applications that cross managed and native platform boundaries.
• Experience with macOS application and installer packaging, Xcode projects, launchd, Developer ID signing, notarization, entitlements, and secure application updates.
• Experience supporting Linux services and software delivery through systemd, SysV or Upstart, RPM and DEB packages, rpm/dpkg databases, SELinux policy, or related packaging tools.

Benefits

• Medical, dental, and vision insurance.
• 401K Plan with 4% Company Match.
• Life and Disability Programs.
• Paid Parental Leave.
• Paid time off and Paid Holidays.
• Volunteer and Birthday Time off.
• Home Office Allowance.

Our Commitment

We believe in supporting our team members both personally and professionally. Named one of the USA’s Greatest Places to Work in 2024 and 2025, we value flexibility, trust, and a work environment that empowers our team to do their best work.