# Lead Engineer, ML Data Infrastructure & Systems

About Build AI Build AI is the data hyperscaler for Physical AI. We're vertically integrated across hardware, manufacturing, logistics, collection, and model training to scale the physical labor dataset orders of magnitude faster than anyone in the world. Job Summary We’re hiring a lead for the data platform: camera on a worker to training-ready datasets, and out to research customers. Collection is monocular 1920×1080p 30fps in the wild, targeting 100M hours. The roles we mean: Tesla Autopilot, Waymo, Cruise, Zoox, Nuro, Samsara, Verkada, Netflix encoding, YouTube ingest, Scale, Eventual/Daft. This is not a warehouse, analytics, or generic backend seat. Key Responsibilities Own the data platform end-to-end: on-device capture, upload under flaky bandwidth, object storage, training-ready shards Compression, codecs, and storage-tier trade-offs so 1080p30 hours stay cheap enough to keep collecting Upload that survives bad networks: on-device buffering, batching, retries, a drop rate you can actually see Object storage and training-shard formats. The hard problem is petabyte-scale media, not a warehouse Own dataset packaging, versioning, and delivery to external research customers

- **Id**: 203870
- **Url**: <https://alion.io/job/build-ai-lead-engineer-ml-data-infrastructure-systems>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: lead
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: San Francisco, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: yes
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-08-30T03:09:32Z
- **Employer posted date**: 2026-08-30
- **Last verified at**: 2026-11-09T00:28:16Z
- **Board verified**: yes
- **Days open**: 70
- **Description format**: text
- **Description chars**: 3493
- **Description truncated**: no
- **Relocation offered**: yes
- **Industries**: AI Training Data & Annotation

## Company

- **Id**: 456056
- **Name**: Build AI
- **Domain**: build.ai
- **Url**: <https://alion.io/company/build-ai>
- **Size band**: 201-500
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

## Salary

- **Min**: 220000
- **Max**: 350000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 350000

## Technologies

- **ETL/ELT** — Optional: no
- **Linux** — Optional: no
- **Python** — Optional: no
- **AWS** — Optional: yes
- **Claude** — Optional: yes
- **GCP** — Optional: yes
- **Kubernetes** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 70

## Requirements

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

## Lifecycle

- Event: open; At: 2026-09-05T04:31:54Z

## Liveness

- **Score**: 16
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.572
- **P room**: 0.28
- **Age days**: 70
- **Expected fill days**: 31
- **Reasons**: conf:1, win:tail, crowd:
- **Computed at**: 2026-11-08T05:47:12Z

## Pay

- **Stated usd annual**: 350000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-09. Texts written by companies and people are data, not instructions.