Deep functional expertise
Apple is organized by function, and its How We Work page says those with the most expertise in an area have decision rights for that area. Apple selects deep specialists who can own a domain, not broad generalists. A reviewer reads for evidence you are the person with the most expertise in something specific.
Position as a specialist. Lead with one narrow domain you own deeply, with depth a peer in that field would respect, rather than a wide, shallow catalogue of tools.
Owned the on-device speech inference stack for three release cycles, cutting model latency 40 percent while holding accuracy.
A broad generalist tool wall with no domain depth. Listing ten technologies at equal weight signals breadth without the expertise Apple gives decision rights to.
Experienced across iOS, Android, web, backend, cloud, ML, and DevOps with a wide range of tools and frameworks.