Member of Technical Staff, Data Science

The role

You will develop models and data systems for an AI-driven legal platform. You will work across the full lifecycle from data definition to model deployment and iteration.

What you will do

• Build metrics, benchmarks, and experimentation frameworks to measure and improve model performance.
• Partner with legal and product teams to define labeling schemas, curate datasets, and improve data pipelines.
• Work with engineering to deploy models, monitor performance, and iterate based on real-world usage.
• Leverage LLMs and other modern techniques to solve product problems.
• Partner with engineering, product, and legal teams to deliver end-to-end systems.

Required qualifications

• 1–5 years of experience in data science, machine learning, or applied NLP
• Strong foundation in machine learning, statistics, and data analysis
• Proficiency in Python
• Hands-on experience working with LLMs, NLP systems, or unstructured text data
• Experience working across the full ML lifecycle from data curation and experimentation to deployment and monitoring
• Highly analytical with strong problem-solving skills
• Strong communicator who can collaborate with technical and non-technical stakeholders

Nice to have

• experience in a fast-paced startup environment

Benefits

• Unlimited PTO
• Lunch & dinner in the office every day
• Medical insurance (multiple plan options through Anthem & Cigna)
• HSA or FSA, depending on your plan choice
• Dental insurance
• Vision insurance
• One Medical membership
• 401(k) match
• In-office desk setup stipend

Before you apply

• Background checks for applicants will be administered in accordance with applicable law

About the company

Crosby is an AI-native law firm that helps companies sign commercial contracts faster. They build proprietary tools and human-in-the-loop workflows for corporate legal teams.