Senior NLP Scientist for GenAI & LLM Apps (Remote)

Justjoin

United States

Remote

USD 150,000 - 190,000

Full time

4 days ago
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Job summary

Justjoin, a consumer intelligence platform, is hiring a Senior Data Scientist to build NLP models and GenAI solutions that extract meaning from massive consumer datasets. You'll develop sentiment analysis, emotion detection, and LLM-based applications that inform multi-million dollar marketing and product decisions for global brands.

This is a remote position reporting to our CTO. You will deploy NLP models, design prompt engineering, RAG architectures, and fine-tuning, collaborate with data

Qualifications

  • 2–4+ years in data science roles with production model development.
  • 1–2+ years focused on NLP tasks (sentiment analysis, classification, topic modeling).
  • Minimum 1 model deployed to production or demonstrably used to inform business decisions.

Responsibilities

  • Develop and deploy NLP models for sentiment analysis, emotion detection, and text classification processing 1M+ documents daily.
  • Design and implement LLM-based solutions using prompt engineering, RAG architectures, and fine-tuning approaches.
  • Build evaluation frameworks to measure model accuracy, establishing baselines and tracking improvements.
  • Collaborate with data engineers and AI engineers to productionize models via API endpoints and batch pipelines.
  • Work with multi-language text data (English primary, with global market expansion).
  • Translate business requirements into technical model specifications.
  • Document model architectures, performance metrics, and usage guidelines for cross-functional teams.
  • Iterate on models based on client feedback and production performance data.

Skills

Python
SQL
ML/NLP libraries
LLMs / GenAI
Git workflows

Education

Bachelor's degree in CS/Stats/Math

Tools

Azure
Databricks
LangChain
PySpark
Hugging Face

Job description

Justjoin, a consumer intelligence platform, is hiring a Senior Data Scientist to build NLP models and GenAI solutions that extract meaning from massive consumer datasets. You'll develop sentiment analysis, emotion detection, and LLM-based applications that inform multi-million dollar marketing and product decisions for global brands.

This is a remote position reporting to our CTO. You will deploy NLP models, design prompt engineering, RAG architectures, and fine-tuning, collaborate with data

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