Machine Learning Engineer, NLP and LLM Platform (Remote, Contract)

Job overview

The Machine Learning Engineer, NLP and LLM Platform role is remote across the USA, with required overlap with US Eastern Time hours. Compensation is not specified. The project is to build an AI-powered risk intelligence platform that helps enterprises detect, assess, and respond to online threats. As an individual contributor, the engineer designs and operates production machine-learning models and LLM features that turn large volumes of online text into actionable signals. The work contributes to threat detection by improving model quality, scalability, monitoring, and the data pipelines that support the platform.

What you'll do

• Design, train, and deploy models for text classification, entity extraction, clustering, and narrative and topic detection
• build LLM features using prompt design, retrieval-augmented generation, and agentic workflows
• develop embedding and semantic-search pipelines
• productionize monitored services against latency, cost, and accuracy targets
• build evaluation frameworks and datasets
• collaborate on ingestion, labeling, and feature pipelines
• monitor and retrain production models
• debug quality issues
• and document technical approaches and trade-offs.

What we're looking for

Skills & competencies

machine learning engineer

remote usa

contract

natural language processing

large language models

retrieval-augmented generation

python

pytorch

tensorflow

vector search

threat intelligence

us eastern time overlap

Work arrangement

• Weekend coverage required

Why this role

Remote US project-based contract assignment requiring overlap with US Eastern Time. The posting requires production ML experience, Python, practical NLP, LLM and RAG experience, embeddings and vector search, and cloud deployment experience.

About the employer

Tech Holding is hiring for this role. Industry: Engineering Services. Sector: 54.