# Sr. Machine Learning Engineer

**Company**: Pattern
**Location**: Lehi, UT
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: Full-time (Salary)
**Category**: Engineering
**Industry**: Technology

**Apply**: https://jobs.lever.co/pattern/dbbc369a-1ae4-4df8-b8e7-680ea34ef041?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_b8851bc4-58a

## Description

We are seeking a Senior Machine Learning Engineer to own evaluation systems and model-side quality improvements for Pattern's generative content platform. The platform produces AI-generated titles, bullets, A+ modules, and imagery across hundreds of thousands of listings.

Responsibilities:

- Build and maintain datasets, rubrics, and automated judges to evaluate the efficacy of changes to the content engine.

- Convert brand rejection reasons into structured, labeled training data to feed model improvements.

- Find ways to quantify qualitative improvements to generated content.

- Decide and defend approval thresholds for generated content in partnership with data science and brand teams.

- Build quality gates to catch problematic outputs before they reach brand review.

Requirements:

- Strong code and system design experience in any language or stack.

- 3+ years owning production software services end to end.

- Formal statistics or machine learning training, or equivalent depth built on the job.

- Experience engineering systems with non-deterministic outputs.

Nice to have:

- Fine-tuning experience (LoRA/PEFT).

- Hands-on LLM or generative media production work.

- Evaluation-system ownership.

- Multimodal evaluation.

- E-commerce domain knowledge.

- Human-labeling operations.

- A/B testing infrastructure.

Career Growth: At Pattern, we prioritize internal mobility and professional development. This role prepares you for senior IC or technical leadership tracks across Pattern's broader AI and generative content initiatives.

Success Metrics:

- 30 Days: Complete onboarding and make initial contributions to an existing regression suite.

- 60 Days: Own a defined slice of the evaluation system end to end.

- 90 Days: Independently drive a fine-tuning or retrieval experiment from hypothesis to validated result.

We Value:

- Game Changers.

- Data Fanatics.

- Partner Obsessed.

- Team of Doers.

Benefits:

- Unlimited PTO.

- Paid Holidays.

- Onsite Fitness Center.

- Company Paid Life Insurance.

- Casual Dress Code.

- Competitive Pay.

- Health, Vision, and Dental Insurance.

- 401(k) match.

## Skills

### Required
- machine learning
- software engineering
- statistics
- system design

### Nice to have
- fine-tuning
- LLM
- generative media production
- evaluation-system ownership
- multimodal evaluation
- e-commerce domain knowledge

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Source: [Apply at jobs.lever.co](https://jobs.lever.co/pattern/dbbc369a-1ae4-4df8-b8e7-680ea34ef041?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)