Data Scientist (Generative AI Focus)

Company: twentysix
Apply for the Data Scientist (Generative AI Focus)
Location: New York
Job Description:

About the Role

Known’s Channel Data Science team is a group of data scientists embedded in our media buying practice to translate the domain knowledge we gain from running media for our clients to smart tools that push the limits of advanced advertising. Our work includes predictive modeling/optimization, building workflow automation apps, and the pioneering application of Generative AI for novel marketing solutions— all in the service of making our work less repetitive and manual, more optimized, and seeking better outcomes for our media activation and media consulting clients.

We are seeking a Data Scientist who can understand the core business objectives of our internal teams and our clients, and ideate, design, and develop innovative tools leveraging text-based Large Language Models (LLMs) and other Generative AI techniques. While experience in media is a plus, a passion for applying cutting‑edge AI to marketing challenges is crucial. A significant focus of this role will be to champion and implement Generative AI initiatives. In this role more generally, you will work with, and guide (for senior levels) other data scientists on a variety of projects, interface with our other teams at Known, and drive forward some of our most difficult and innovative data science projects, particularly those harnessing the power of LLMs.

Responsibilities

  • Explore, develop, and deploy Generative AI (specifically LLM‑based) tools for marketing applications, such as content ideation/generation, audience persona creation, automated reporting with natural language summaries, campaign strategy assistance, and enhanced customer insights
  • Develop new techniques (e.g., traditional ML models, optimization algorithms, LLM fine‑tuning, prompt engineering strategies, and automation) to improve Known IP and create tools for Known’s clients
  • Work with other data scientists and engineers to productionalize new tools, including GenAI‑powered applications
  • Stay current with advancements in Data Science and AI and identify opportunities for their application in the marketing domain

Qualifications

  • A Bachelors, Masters or PhD from a well‑regarded college or university. STEM degrees (e.g., Statistics, Economics, Data Science, Mathematics, Computer Science) are preferred
  • Hands‑on experience doing quantitative analysis, statistical modeling, optimization and/or machine learning
  • Proven experience in developing and deploying solutions using Generative AI, particularly text‑based Large Language Models (e.g., experience with APIs like OpenAI’s, or open‑source models)
  • Experience utilizing Python and SQL
  • Experience building data science software or analytical workflows
  • Experience in advertising or advertising technology is a strong plus, especially if combined with GenAI application in this domain
  • 2+ years (with Masters/PhD) or 3+ years (with Bachelors) of relevant experience
  • 1+ years of experience building data science software, ideally including applications leveraging AI/ML models
  • Academic projects, internships, or personal projects demonstrating application of modeling techniques preferred

Skills, Abilities, and Knowledge

  • Superb communication and presentation skills
  • An ability to translate business challenges into quantitative problems, and solve them by whatever means necessary, which may not always be strict machine learning
  • Strong understanding of LLM capabilities, limitations, ethical considerations, and the evolving landscape of Generative AI technologies
  • Proven ownership of projects taken to completion
  • A commitment to managing the quality & accuracy of analytics, ensuring high standards with your and others’ work
  • Experience working on a tech team, with experience in cloud technologies, version control, etc
  • Experience in advertising or advertising technology is a plus

Competencies

  • Ability to prioritize time, work and effort while multitasking on multiple projects
  • Desire to mentor and teach others
  • Collaborative attitude
  • Self‑motivated and exhibits initiative
  • Willing & able to learn quickly
  • Abundant intellectual curiosity and integrity

Perks

  • Unlimited paid time off
  • 401k with company matching and no vesting period
  • Annual bonuses
  • Generous medical plan
  • Paid parental leave

Salary

Base salary for this position is $110K – $130K. This range is posted in compliance with state and municipal Pay Transparency laws. In addition to base compensation, this role is eligible to receive additional Known benefits.

EEO Statement

Known is an equal opportunity employer and does not discriminate against employees or qualified job applicants on the basis of race, color, sex, age, national origin, religion, sexual orientation, gender identity and/or expression, status as a veteran, and basis of disability or any other federal, state or locally protected class.

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Posted: May 31st, 2026