# Machine Learning Engineer, Core Experimentation

About the Team The Statsig team within OpenAI builds the experimentation, feature rollout, dynamic configuration, and analytics systems that help OpenAI ship products with speed, safety, and evidence. Our work sits on the critical path for how product, engineering, research, and go-to-market teams learn from real-world usage and make high-confidence decisions. Statsig began as an independent company focused on helping builders move faster through trustworthy experimentation and feature management. After Statsig joined OpenAI, the team began the next chapter: bringing that deep product expertise, customer intuition, and mature platform infrastructure into OpenAI as the experimentation and rollout platform for every product we ship. Today, we support teams across ChatGPT, Codex, model measurement, consumer experiences, business subscriptions, developer products, and the shared infrastructure that connects them. These teams rely on Statsig to safely introduce new capabilities, compare product and model behavior, measure impact, and roll changes forward or back with confidence. We are at a defining moment in the platform journey. OpenAI has the data, product surface area, and pace of i

- **Id**: 1200939
- **Url**: <https://alion.io/job/openai-machine-learning-engineer-core-experimentation>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Employment type**: full_time
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: Seattle, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-09-24T20:40:14Z
- **Employer posted date**: 2026-09-24
- **Last verified at**: 2026-11-09T06:57:21Z
- **Board verified**: yes
- **Days open**: 45
- **Description format**: text
- **Description chars**: 9234
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Artificial Intelligence, Conversational AI, Generative Video, Code Intelligence

## Company

- **Id**: 2
- **Name**: OpenAI
- **Domain**: openai.com
- **Url**: <https://alion.io/company/openai>
- **Size band**: 5000+
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

### Truth index

- **Grade**: B
- **Score**: 79
- **Open postings**: 207
- **Ghost share**: 0
- **Stale share**: 0.836
- **Repost share**: 0.01
- **Time to fill p50 days**: 51
- **Computed at**: 2026-11-09T06:03:00Z

## Salary

- **Min**: 437000
- **Max**: 485000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 485000

## Technologies

- **Anomaly Detection** — Optional: no
- **ChatGPT** — Optional: no
- **LLM** — Optional: no
- **Machine Learning** — Optional: no
- **OpenAI** — Optional: no
- **OpenAI Codex** — Optional: no
- **Python** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 45

## Requirements

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

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-09-24T20:47:31Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 262 · green card filings: 3; Filings 12m: 262

## Liveness

- **Score**: 31
- **Band**: fade
- **Label**: Fading
- **P open**: 1
- **P active**: 0.515
- **P room**: 0.6
- **Age days**: 45
- **Expected fill days**: 51
- **Reasons**: conf:3, stale_co, velocity, win:late, crowd:brand
- **Computed at**: 2026-11-09T06:03:00Z

## Pay

- **Stated usd annual**: 485000
- **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.