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Salary: USD 204,000 - 240,000 / annual
Carta is seeking a Legal Product Builder to join Carta Law, an AI-native legal services firm that combines legal expertise with cutting-edge technology. This role sits at the intersection of legal practice and product development, focused on building AI-powered legal products that transform how private capital operates.
You will work alongside top AI engineers and legal professionals to:
• Build AI-powered legal products by bringing deep legal expertise into the product development process, helping translate complex legal work into scalable, agent-driven experiences
• Translate legal judgment into systems by breaking down legal processes (contract review, compliance, negotiation) into the decisions, rules, workflows, exceptions, and escalation points that AI agents need to navigate
• Develop evaluation frameworks by creating examples, evaluation criteria, test cases, and feedback loops that help legal agents produce accurate, useful, and trustworthy work
• Evaluate and improve agent performance by testing against real-world scenarios, identifying failure modes, diagnosing reasoning gaps, and partnering with engineers to iterate
• Prototype new legal capabilities using AI tools directly to experiment with prompts, workflows, and agent behavior, moving from concept to working prototype
Carta is the connected platform for private capital, trusted by 55,000 companies and 1.8M+ equity holders across 160+ countries, plus 10,000 funds and SPVs representing $250B+ in assets under management.
Requirements:
• Legal background: 4+ years of substantive legal training and experience (Big Law, in-house at asset manager/PE firm, or comparable legal practice)
• Product thinking: Demonstrated track record of identifying where legal workflows break down and proposing or building solutions
• Technical fluency: Comfortable sparring with engineers on AI product development; able to translate legal judgment into actionable technical requirements (coding not required)
• Communication & autonomy: Strong written communicator with sharp judgment; operates with high degree of independence
• Nice to have: Direct commercial contract negotiation experience (NDAs, subscription agreements, transaction docs); prior legal tech company or hybrid legal/product role; familiarity with contract automation, document intelligence, or negotiation tooling; founder experience or track record of building from scratch
