# Machine Learning Engineer

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com. Job Duties: Design, build, and deploy industrial-level machine learning models to solve critical problems in ad ranking, bidding, and optimization. Take full ownership of the ML lifecycle, from ideation and research to building scalable serving systems and maintaining models in production. Perform systematic feature engineering to transform raw, diverse data into high-quality features that drive model performance. Work closely with product managers, data scientists, and engineers to translate business challenges into effective ML solutions. Improve the reliability and stability of our ML systems by building robust monitoring, alerting, and automated retraining pipelines. Research new algorithms, stay up-todate with state-of-the-art ML t

- **Id**: 3832537
- **Url**: <https://alion.io/job/reddit-machine-learning-engineer-4>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: junior
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: San Francisco, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 2
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: yes
- **Status**: live
- **First seen at**: 2026-11-05T16:13:17Z
- **Employer posted date**: 2026-11-05
- **Last verified at**: 2026-11-06T22:57:24Z
- **Board verified**: yes
- **Days open**: 1
- **Description format**: text
- **Description chars**: 4826
- **Description truncated**: no
- **Benefits**: 401k plan, Equity, Hybrid work, Parental leave, Professional development, Restricted stock units, Vision insurance
- **Relocation offered**: no
- **Industries**: Online Forums & Community Platforms, Social Networks

## Company

- **Id**: 16
- **Name**: Reddit
- **Domain**: reddit.com
- **Url**: <https://alion.io/company/reddit>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

### Truth index

- **Grade**: B
- **Score**: 79
- **Open postings**: 27
- **Ghost share**: 0
- **Stale share**: 0.63
- **Repost share**: 0
- **Time to fill p50 days**: 67
- **Computed at**: 2026-11-06T05:58:05Z

## Salary

- **Min**: 216700
- **Max**: 303400
- **Currency**: USD
- **Period**: year
- **Usd annual**: 303400

## Technologies

- **Apache Kafka** — Optional: no
- **GCP** — Optional: no
- **LLM** — Optional: no
- **Machine Learning** — Optional: no
- **SLI/SLO/SLA** — Optional: no
- **XGBoost** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 1

## Requirements

- **Experience years min**: 2
- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: master
- **Optional**: no

## Hiring locations

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

## Lifecycle

- Event: open; At: 2026-11-05T19:55:02Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 92 · green card filings: 20; Filings 12m: 92

## Liveness

- **Score**: 63
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.632
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 67
- **Reasons**: conf:1, stale_co, velocity, win:early, comp:junior,brand
- **Computed at**: 2026-11-06T05:58:05Z

## Pay

- **Stated usd annual**: 303400
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-07. Texts written by companies and people are data, not instructions.