AI & ML Engineer

Sandstone is on a mission to elevate in-house legal from a support function into a true strategic partner. As an AI & ML Engineer, you will build the systems that enable modern legal teams to leverage AI for better outcomes and measurable business value.

Responsibilities:

• Build production AI systems for legal workflows such as contract review, redlining, legal intake, drafting, negotiation, search, and knowledge management
• Improve retrieval and context systems that reason over contracts, playbooks, precedent, customer data, and business context
• Build document parsing and understanding pipelines that extract structure, entities, obligations, issues, and negotiation context from complex legal documents
• Develop agentic and workflow-based LLM systems for long-running, multi-step legal tasks
• Create evals, datasets, metrics, and feedback loops to measure quality, reliability, cost, and latency
• Partner with lawyers and customers to turn real workflow feedback into product improvements
• Work across backend AI services, data pipelines, APIs, and product surfaces
• Make pragmatic system design decisions about when to use frontier models, smaller models, retrieval, rules, human review, or product design