CareerPlan

Sr. Legal AI Prompter, Evaluator

United States of America, Eagan, MinnesotaFull-time2026-11-09 → 2026-11-11

Core

Improving CoCounsel Legal by writing/refining prompts, experimenting with LLMs (including Thomson), and evaluating outputs to ensure accurate, legally sound results for legal professionals.

Role type

Senior IC Legal AI Prompter / Evaluator

Builds

LLM-driven legal solutions and evaluation frameworks for CoCounsel Legal

Domain

Legal technology + Generative AI

Deliverable

production ML models

Required skills

Prompt engineering, LLM evaluation, Python programming, Git, Legal domain expertise, Experiment design, Data analysis, Scripting, Stakeholder collaboration

Preferred skills

Legal product testing experience, Agentic/RAG systems knowledge, LLM-as-judge prompt design

Technologies

Thomson, OpenAI, Anthropic, Gemini, Python, Git

Responsibilities

Create/test/refine prompts and agent configurations; Experiment with LLMs on legal tasks; Build gold-standard datasets and design evaluation schemes; Write/run scripts and automated tests; Monitor production performance and analyze failure modes; Collaborate on integrating LLMs into multi-step systems; Mentor colleagues and draft guidance materials

Seniority

Senior, hands-on IC