# Staff / Sr. ML Engineer, Web Indexing

We’re looking for an ML Engineer to help build and scale the indexing infrastructure powering web and image search. The team runs both petabyte-scale offline batch pipelines and near-real-time indexing systems that turn web documents, images, and metadata into production-ready indexes. We work across distributed computing, data processing, and storage, while partnering with crawling, ranking, ML, retrieval, and infrastructure teams to shape the long-term indexing strategy. This is a cross-functional role requiring strong technical depth, organizational influence, and the ability to drive complex, multi-team initiatives. Description You’ll own both technical direction and execution for two core systems: large-scale offline indexing (distributed pipelines processing petabytes of content into production indexes) and fresh/near-real-time indexing (low-latency propagation of new or updated content). Responsibilities span architecture, scalability, reliability, and efficiency across billions of documents and images. Success requires close collaboration across teams to resolve dependencies, make architecture tradeoffs, and drive large programs to completion, while acting as a key liaison

- **Id**: 4205315
- **Url**: <https://alion.io/job/apple-staff-sr-ml-engineer-web-indexing>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: staff
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Santa Clara, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-12T18:58:07Z
- **Employer posted date**: 2026-11-12
- **Last verified at**: 2026-11-12T23:26:24Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 2358
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Operating Systems, Laptops, Smartwatches & Fitness Trackers, Tablets

## Company

- **Id**: 12
- **Name**: Apple
- **Domain**: apple.com
- **Url**: <https://alion.io/company/apple>
- **Size band**: 5000+
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Apple Jobs

### Truth index

- **Grade**: A
- **Score**: 94
- **Open postings**: 1125
- **Ghost share**: 0.001
- **Stale share**: 0.036
- **Repost share**: 0.02
- **Time to fill p50 days**: 148
- **Computed at**: 2026-11-12T10:38:37Z

## Technologies

- **Apache Kafka** — Optional: yes
- **Computer Vision** — Optional: yes
- **Flink** — Optional: yes
- **Google Bigtable** — Optional: yes
- **HBase** — Optional: yes
- **Multimodal AI** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 0

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: bachelor
- **Optional**: yes

## Lifecycle

- Event: open; At: 2026-11-12T23:26:24Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 6,350 · green card filings: 39; Filings 12m: 6350

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 148
- **Reasons**: conf:2, win:early, comp:brand
- **Computed at**: 2026-11-13T01:51:01Z

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Source: Alion (alion.io), 2026-11-13. Texts written by companies and people are data, not instructions.