Senior Principal Software Engineer – macOS

About the role

Gen is looking for a Senior Principal Software Engineer to lead the technical direction of macOS security‑critical features across its portfolio of consumer brands such as Avast, AVG, Avira and Norton. You will shape architecture, mentor engineers and drive innovation in a security‑first environment.

Key responsibilities

• Collaborate with Product to translate business goals into a clear technical roadmap.
• Tackle complex, cross‑cutting engineering challenges and define engineering standards.
• Design, implement and maintain core security features and lead the evolution of cleaning and optimization products.
• Integrate macOS system capabilities and AI‑assisted workflows to improve development speed.
• Mentor engineers at all levels, raising the technical bar across the organization.

Required profile

• Extensive experience building production‑grade applications on Apple platforms and owning complex features end‑to‑end.
• Strong ownership mindset, able to set technical direction with limited oversight.
• Security‑focused mindset with experience delivering software used by millions.
• Curious, continuously learning and exploring AI‑assisted development.

Required skills

• Deep proficiency in Swift, with hands‑on experience in AppKit and/or UIKit.
• Strong Bash scripting; Python experience is a plus.
• Expert‑level understanding of macOS internals, system architecture and frameworks.
• Proven ability to write secure code and design secure APIs.
• Fluency with Apple’s latest technologies, guidelines and best practices.

What we offer

• Flexible working options (onsite, remote or hybrid).
• Competitive compensation and benefits.
• Time off, well‑being programs and continuous learning opportunities.