Senior AI Engineer, Post-Training

Carta · Data & Machine Learning

Location: San Francisco, CA; New York City, NY
Metro: San Francisco Bay Area, New York City
Workplace: Unspecified
Level: Senior
Type: Unspecified
Pay: $242K–$285K/yr (estimated from posting text)
Posted: 1 month ago
Source: Greenhouse

What the posting covers

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…

The Team You'll Work With

You’ll join Carta’s ML Engineering team, embedded in Carta Law, our legal tech platform built around autonomous AI agents, specialized legal models, document intelligence and contract workflows. You’ll have end-to-end ownership across model development and…

The Problems You'll Solve

As an AI Engineer, you will lead technically complex, model-centric projects and serve as a multiplier for your team. You will: Post-train open-weight language models on proprietary legal data, owning the model development lifecycle end-to-end, from data,…

About You

Technical Depth: You have hands-on experience with LLM post-training using PyTorch or equivalent frameworks, and understand the training, evaluation, and inference systems around them. You are equally comfortable building the product around the model,…

About You

At Carta, you’re not just an employee. You’re a builder who is creating infrastructure that accelerates innovation and empowers more ownership. Cartans are helpful, relentless, unconventional and kind; representing Carta’s Identity Traits. They work…

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:…

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