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# Machine Learning Engineer

- **Company:** BESPOKE LAB INCORPORATED
- **Location:** McKinney, TX, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Training Data, Amazon Web Services, Python (Programming Language), Machine Learning, Google Cloud, Pytorch, Large Language Models, Deep Learning, Slurm
- **Published:** August 1, 2026
- **Apply:** https://www.adzuna.com/details/5766191717

## About the Role

3+ years of ML engineering experience - model training, fine-tuning, or post-training pipelines in research or production

Strong Python and deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed precision)

Hands-on experience with LLM post-training - SFT, RLHF, PPO, DPO, or reward model training - and understanding of how training data quality affects model behavior

Familiarity with RL frameworks (Gymnasium, dm_env) and the ability to design or modify reward functions for agent training objectives

Experience running experiments at scale on cloud or HPC (AWS, GCP, SLURM, or Ray)

Solid understanding of evaluation methodology - held-out sets, benchmark design, avoiding train/eval contamination

## Description

You will work directly with our research team on RL environment and task creation for agent training. This means designing observation spaces, action spaces, reward signals, and success criteria for new environments - and building the infrastructure that makes world-scale RL training possible. This is a high-ownership role; you will be building novel systems, not maintaining legacy ones.


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