Senior Software Engineer, Ads

What you'll do

• Set technical direction and architecture for on-device ad delivery systems across multiple Apple surfaces.
• Design, implement, and debug performant, privacy-preserving on-device components within daemons, frameworks, and SDKs.
• Resolve complex, ambiguous technical problems with significant scope and no existing precedent.
• Identify and mitigate systemic technical risks such as architectural debt and scaling limits.
• Drive cross-functional alignment to shape and sequence the multi-quarter roadmap for on-device ad delivery.
• Mentor senior engineers and perform design reviews to raise the technical quality bar across the group.
• Represent the team in cross-organizational architecture reviews to influence technical decisions beyond immediate boundaries.

What we're looking for

• Bachelors Degree or equivalent experience.
• Deep, expert-level understanding of OS fundamentals including process/memory management, scheduling, and file systems.
• Extensive professional software development experience in a C-like language for systems with significant scale and reliability requirements.
• Expert-level understanding of cross-process communication and concurrent programming including multi-threading, synchronization, and locking.
• Track record of designing and operating high-performance client SDKs or libraries at scale.
• Demonstrated experience owning architecture and technical direction for complex, long-lived codebases and driving multi-team initiatives.
• Proven ability to operate with significant ambiguity and drive alignment across engineering, product, and business stakeholders.
• History of mentoring senior engineers and excellent written and verbal communication skills.
• Ad tech; Apple-platform fundamentals including Swift/Obj-C; designing/maintaining public APIs or SDKs for external developers (preferred).