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# Machine Learning Research Engineer

- **Company:** Coders Connect
- **Location:** San Francisco, CA, United States
- **Experience:** Experienced
- **Salary:** $200,000.0 - $350,000.0
- **Contract:** Permanent contract
- **Skills:** Training Data, Artificial Intelligence, Python (Programming Language), Machine Learning, Open Source Technology, Pytorch, Large Language Models
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25304_9145c427edfabf5d731ae072c66a8a13

## About the Role

* 2-6+ years in post-training, ML research, or ML engineering
 * Strong experience with Python, PyTorch, LLMs, and multimodal models
 * Proven ability to run fast, iterative experiments from data to evaluation
 * Curiosity for subjective AI-creativity, tone, and aesthetics
 * Low-ego, collaborative mindset; thrives in a small, in-person environment

Bonus

 * Experience working with post-training data or data vendors (Scale, Labelbox, Snorkel, etc.)
 * Personal interest in creative fields (design, art, writing, or similar)

## Description

As a Machine Learning Research Engineer, you'll own end-to-end research cycles-designing, running, and analyzing post-training experiments that help models evaluate style and subjective quality. You'll collaborate directly with AI labs and creative experts, and have the opportunity to publish your work., * Train reward models, classifiers, and verifiers across creative domains (writing, design, visual style)

 * Develop benchmarks and evaluation methods for subjective tasks
 * Run post-training (RLHF/DPO) experiments on open-source and proprietary models
 * Collaborate with AI labs and creative experts on pilots and research projects
 * Publish findings through blogs and whitepapers