# [Remote] Principal Full-Stack Data Scientist - Foundational Models

Note: The job is a remote job and is open to candidates in USA. Stitch Fix is hiring a Principal Full-Stack Data Scientist for its Foundational Models team, which builds machine learning systems that power personalization and recommendations. The role spans the full machine learning lifecycle, from developing and evaluating models to deploying and operating production systems, while collaborating across technical and product teams. Responsibilities Design, develop, evaluate, and productionize machine learning models that improve Stitch Fix's personalization and recommendation systems Advance foundational modeling capabilities, including client and item representations, embeddings, retrieval, ranking, recommendation models, and assortment generation Explore and apply LLMs and machine learning techniques—including deep learning, representation learning, multimodal modeling, and generative approaches—where they can meaningfully improve our systems Own work across the full ML lifecycle, from problem formulation and data exploration through modeling, experimentation, deployment, monitoring, and iteration Design rigorous offline evaluations and online experiments to understand model per

- **Id**: 3714579
- **Url**: <https://alion.io/job/stitch-fix-remote-principal-full-stack-data-scientist-foundational-models>
- **Role**: Data Science
- **Role family**: Data Science
- **Seniority**: lead
- **Employment type**: full_time
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: posting_text
- **Hiring geo confidence**: explicit
- **Locations**: United States
- **Countries**: US
- **Hiring countries**: US
- **Hiring countries total**: 1
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: closed
- **First seen at**: 2026-11-03T23:48:06Z
- **Last verified at**: 2026-11-04T09:38:30Z
- **Board verified**: no
- **Closed at**: 2026-11-04T09:38:30Z
- **Days open**: 0
- **Description format**: text
- **Description chars**: 4398
- **Description truncated**: no
- **Benefits**: Restricted stock units
- **Relocation offered**: no
- **Industries**: Retail & Shop Systems, Apparel & Fashion Brands

## Company

- **Id**: 6883
- **Name**: Stitch Fix
- **Domain**: stitchfix.com
- **Url**: <https://alion.io/company/stitch-fix>
- **Size band**: 51-200
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

## Salary

- **Min**: 200000
- **Max**: 237000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 237000

## Technologies

- **A/B Testing** — Optional: no
- **Machine Learning** — Optional: no
- **Multimodal AI** — Optional: no
- **Python** — Optional: no
- **PyTorch** — Optional: no
- **Recommender Systems** — Optional: no
- **SQL** — Optional: no

## Trust

- **Level**: not_scored
- **Days open**: 0

## Requirements

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

## Hiring locations

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

## Lifecycle

- Event: open; At: 2026-11-04T00:21:00Z
- Event: close; At: 2026-11-04T09:38:30Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 13 · green card filings: 1; Filings 12m: 13

## Pay

- **Stated usd annual**: 237000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-08. Texts written by companies and people are data, not instructions.