Apply now

Posted last month

Legal Product Builder

@ Carta

Toronto, Ontario

4+ years experience
Apply now
SIGNALS

Overview

Carta is hiring a Legal Product Builder for its Carta Law team in Toronto, a role that turns legal judgment into AI agent workflows, evaluation criteria and prototypes. The work covers building legal products with engineers, defining what good output looks like, testing agent performance and prototyping new capabilities. Compensation is listed at CAD 166,000 to 196,000 plus equity for full-time roles.

Responsibilities:

  • Translate legal processes into AI agent rules and workflows
  • Develop examples, evaluation criteria and test cases for legal agents
  • Test agent performance against real-world scenarios and diagnose failures
  • Prototype new legal capabilities with AI tools
  • Partner with engineers on improvements

Requirements summary:

  • Lawyer with 4+ years of substantive legal experience
  • Track record of improving legal workflows
  • Comfort discussing how AI products are built
  • Strong written communication and independent judgment
  • Nice to have: contract negotiation, legal tech or product experience

Tools & skills

Source and dates

Employer career site / ATS feed · greenhouse

Employer posting date
2026-10-08
First seen by our source
2026-10-08
Source record updated
2026-10-30

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SeniorityMid level
DepartmentLegal & compliance
Experience4+ years
Hours per week40 (estimated)
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish
Perks mentionedPerformance bonus, Stock or equity

Summary and details written by AI from the posting; the employer’s posting is the authority.

FieldValue
Open jobs on Jobsy10
Job description

The Company You’ll Join

Carta is the connected platform and AI-native ecosystem for private capital. Built to replace fragmented tools with a single system of record, Carta brings together the software, services, and legal infrastructure that founders use to manage equity, fund managers use to run administration and reporting, and legal teams use to close transactions. Trusted by 55,000 companies and 1.8M+ equity holders in 160+ countries, and 10,000 funds and SPVs representing $250B+ in assets under management, Carta is transforming how private capital operates. Recognized by Fortune, Forbes, Fast Company, Inc. and Great Places to Work.

For more information about our offices and culture, check out our Carta careers page.

The Problems You'll Solve

As a Legal Product Builder, you will sit at the cutting edge of building technology around the practice of law. You will:

  • Build AI-powered legal products alongside engineers and product managers: Bring deep legal expertise into the product development process, helping turn complex legal work into scalable, agent driven experiences
  • Translate legal judgement into systems: Break down legal processes like contract review and compliance into the decisions, rules, workflows, exceptions, and escalation points an AI agent needs to navigate
  • Teach our agents what "good" looks like: develop examples, evaluation criteria, test cases and feedback loops that help our legal agents produce accurate, useful, and trustworthy work.
  • Evaluate and improve agent performance. Test against real world scenarios, identify where the reasoning or outputs fall short, diagnose failure modes, and partner with engineers to improve them. Anticipate ambiguity, edge cases, conflicting information and situations requiring human judgement and determine how our products should handle them
  • Prototype new legal capabilities: use AI tools directly to experiment with prompts, workflows, and agent behaviour, moving from an idea to a working prototype before or alongside engineering to shape what we build next

The Team You'll Work With

You'll join Carta Law, an AI-native legal services firm that sits at the intersection of legal expertise and cutting-edge technology. The team's philosophy is full ownership — Carta Law doesn't sell tools, it delivers legal and compliance services end to end, from intake to negotiation to execution and reporting. You'll work alongside top AI engineers and legal professionals who are actively reimagining how legal work gets done, from agents that negotiate agreements to document intelligence and extraction tools to a dedicated platform combining agents, workflows, and human lawyers.

About You

  • Legal Background: You're a lawyer with 4+ years of substantive training and experience, whether that's Big Law, in-house at an asset manager or PE firm, or comparable legal practice or within a legal-adjacent role.
  • Product Thinking: You have a demonstrated track record of identifying where legal workflows break down and proposing (or actually building) something better.
  • Technical Fluency: You don't need to write code, but you're comfortable sparring with engineers on how AI products are built and can translate legal judgment into something a technical team can act on.
  • Communication & Autonomy: You're a strong written communicator with sharp judgment, and you operate with a high degree of independence.
  • Nice to have: Direct commercial contract negotiation experience (NDAs, subscription agreements, transaction docs); prior time at a legal tech company or in a hybrid legal/product role; familiarity with contract automation, document intelligence, or negotiation tooling; founder experience or having built something from scratch.

Salary

Carta’s compensation package includes a market competitive salary, equity for all full time roles, exceptional benefits, and, for applicable roles, commissions plans. Our minimum cash compensation (salary + commission if applicable) range for this role is:

$166,000 - $196,000 in Toronto, Ontario, Canada.

Final offers may vary from the amount listed based on geography, candidate experience and expertise, and other factors.

Disclosures:

  • We are an equal opportunity employer and are committed to providing a positive interview experience for every candidate. If accommodations due to a disability or medical condition are needed, please connect with the talent partner via email.
  • Carta uses E-Verify in the United States for employment authorization. See the E-Verify and Department of Justice websites for more details.
  • For information on our data privacy policies, see Privacy, CA Candidate Privacy, and Brazil Transparency Report.
  • Please note that all official communications from us will come from an @carta.com or @carta-external.com domain. Report any contact from unapproved domains to [email protected].

Similar jobs

  • RQ11580 - Software Developer - Senior

    Toronto, ON
    Contract

    Maarut

    Candidates need a background in computer science, data science or AI/ML, ideally as a student or recent graduate. They should be comfortable with Python, LLM frameworks, Databricks or MLflow, and organized in tracking experiments.

    Databricks, MLflow, DSPy, LangChain, Hugging Face, PyTorch

    RQ11845 - Software Developer - Senior

    Toronto, ON
    Contract

    Maarut

    10+ YOECandidates need 10+ years designing and developing large-scale web applications and 5+ years with React, JavaScript, TypeScript and REST APIs. They also need experience with accessibility standards (WCAG, AODA), microservice architecture, and leading technical teams.

    Microsoft Dynamics CRM, MuleSoft, Git, npm

    RQ11856 - Training Specialist - Senior

    Toronto, ON
    Contract

    Maarut

    Maarut needs senior experience creating e-learning in Adobe Captivate Classic and Articulate 360 and a portfolio to show it. Candidates also need instructional design, LMS and AODA accessibility knowledge, and strong communication and project management skills.

    Articulate 360, Articulate Storyline, Articulate Rise, Adobe Captivate Classic, PowerPoint, LearnON

    RQ11859 - Systems Testing/QA Specialist - Intermediate

    Toronto, ON
    Contract

    Maarut

    2+ YOEMaarut needs candidates with 2+ years of enterprise software testing experience, hands-on manual and automated testing skills, and knowledge of Agile, Scrum and Waterfall. AODA compliance knowledge and familiarity with Azure or AWS are also required.

    Selenium, Postman, OpenText UFT, Micro Focus, TestComplete, JMeter

    RQ11860 - Database Administrator - Senior

    Toronto, ON
    Contract

    Maarut

    Candidates need senior experience administering major DBMSs and cloud or hybrid databases, plus knowledge of operating systems, query languages, change and incident management and security practices. Strong analytical, communication and teamwork skills are also required.

    Oracle, Microsoft SQL Server, PostgreSQL, MySQL, IBM DB2, Azure SQL

  • Service Clerk Part Time Day

    Toronto, ON
    Part Time

    Loblaw

    Loblaw needs candidates who are team-oriented, detail-focused, resourceful and courteous with customers. They must be able to work a variety of shifts including days, evenings and weekends, and lift up to 50 lb while staying active through a full shift.

    POS

  • Copilot Platform Administrator

    Waterloo, ON +1
    Hybrid

    Support audit, risk, and compliance reviews relating to AI agent deployment, providing evidence of controls and attestations as required; Bachelor’s degree in Information Technology, Computer Science, or a related…

  • Building Maintenance Technician II

    Toronto, ON +1
    $21.30–$25.06/hrFull Time

    BGIS

    3+ YOECandidates need a high school diploma and at least 3 years of facility operations and maintenance experience. They also need troubleshooting and repair skills, basic Building Automation Systems knowledge, enhanced security clearance, and a valid driver's licence.

    Service maintenance management database, Building Automation Systems

Locations & environments

Locations

All of CanadaRemote · Hybrid · On-site · Field

Pro tip: add remote jobs to widen your search.

Exclude locations

Workplace type

Company jobs in these results

These are this company’s jobs loaded in your current search. The company may have more openings.