Software Development Engineer - macOS Endpoint

Salary: £55,000 - 95,000 per year

Requirements:

• A degree in a software engineering discipline, or equivalent practical experience.
• A strong software engineering background, significant hands-on development experience, and specialist depth in at least one technical area.
• Hands-on macOS platform development, with proficiency in Swift, Objective-C, and/or C++, and experience building systems-level or endpoint security software.
• Hands-on experience with macOS, including managing and developing launch daemons and launch agents, using unified logging, and developing XPC components.
• Demonstrable hands-on experience directing agentic AI development tools, such as Claude Code, including framing problems, challenging weak output, and critically reviewing generated code for correctness, security, and maintainability.
• Experience with formal software development methodologies.
• At least 2 years of commercial software engineering experience for the Software Development Engineer level; typically 5 or more years, including demonstrable technical leadership, for the Senior Software Development Engineer level.
• Proactively learn new technologies and quickly build the skills the role requires.
• Adapt well to change and thrive in multidisciplinary teams, maintaining performance and supporting others as priorities shift.
• Communicate clearly, verbally and in writing, tailoring messages to different audiences and stakeholders.
• Bring a strong engineering background and consistently deliver high-quality, robust, and maintainable solutions.
• Nice to have: experience working with Qt, Apples System Extension framework (Endpoint Protection), Apples authorization system, or the sudo plugin framework.
• Nice to have: knowledge and experience with the macOS kernel and Mandatory Access Control Framework (MACF).
• Nice to have: domain or product expertise relevant to the role, or a demonstrated ability to build that expertise quickly.
• Nice to have: relevant professional qualifications or certifications.

Responsibilities:

• Design, build, and maintain the macOS client at the heart of our endpoint security solution, keeping it fast, resilient, and unobtrusive.
• Help shape the architecture of new features and services, providing technical direction on increasingly complex projects.
• Review functional and technical requirements to identify gaps and limitations, propose simplifications, and communicate ideas effectively with cross-functional teams.
• Take accountability for code quality, whether code is produced by agentic AI tools or fellow engineers, through rigorous reviews and pull-request feedback; ensure unit testing and departmental guidelines are met, and work with peers to establish guidelines where none exist.
• Develop and improve build, deployment, and test automation within the team.
• Help identify, prioritize, and resolve technical debt within the team.
• Collaborate with the team to ensure work items are well defined and understood, and that each sprint delivers value with quality.
• Investigate and resolve customer issues escalated to engineering, and feed findings back into the product.
• Track emerging macOS and security technologies and propose improvements to the teams tools and development processes.
• Become the go-to development expert in at least one product area and deepen that expertise over time.
• Mentor team members on the product under development.
• Identify opportunities to improve development activities, reduce waste, and increase efficiency.
• Share knowledge with colleagues inside and outside the team.

Technologies:

• Agentic AI
• AI
• Claude Code
• macOS
• Objective-C
• Qt
• Security
• Swift

More:

We are hiring a Software Development Engineer to help develop our macOS endpoint security solution as part of a multidisciplinary team. The role focuses on delivering outcomes by directing agentic AI development tools and applying engineering judgment to guide and rigorously review their work. Our software protects Mac users across thousands of organizations. Diversity and inclusion guide how we build teams, cultivate leaders, and create a connected culture. We take care of our employees so they can take care of customers from all walks of life, and we believe diverse teams are stronger together. BeyondTrust is a global identity security leader, helping organizations manage the identity attack surface, protect privileges and access, prevent breaches, and limit the impact of attacks. We serve 20,000 customers, including 75 of the Fortune 100, through a global partner ecosystem.

last updated 40 week of 2026