Computational Linguist, AI Evaluation

Twelve Labs, Inc

$120K — $150K *
Consumer Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in AI-focused data operations organizations
  • Strong background in building and managing model evaluation pipelines and frameworks
  • Proficient in analyzing complex data and summarizing findings into actionable guidelines
  • Skilled in Python and other industry-standard automation tools
  • Excellent communication and project management skills for multitasking across projects
  • Foundational understanding of LLMs/VLMs and multimodal AI
  • Belief in the importance of data quality for AI model performance

Responsibilities

  • Define evaluation protocols for video-language model quality and tie them to measurable benchmarks
  • Build data pipelines that convert raw customer data into insights for performance improvement
  • Design and implement data collection and labeling projects while automating repetitive tasks
  • Coordinate with vendors to ensure high-quality output and maintain clear communication channels
  • Collaborate with cross-functional teams to determine priority data needs and present findings clearly

Benefits

  • Inclusive and open work culture
  • Opportunity to work with cutting-edge AI technology in a collaborative environment
  • Comprehensive health, dental, and vision benefits
  • Very flexible PTO and parental leave with office closure during holidays
  • Wellness and learning stipends to support personal and professional growth
  • Global presence with co-working options for remote employees
  • Transportation stipend for onsite employees in San Francisco
  • Daily meals provided for onsite colleagues in the SF office
Full Job Description


About the Role:

You will be a vital member of our ML Data Operations Team - which leads the full spectrum of video-language data collection, labeling operations, and model quality measurement. This role comes with high ownership and includes responsibilities such as defining dataset and evaluation requirements in consultation with our research and product teams; designing and building data pipelines; and coordinating with our vendor partners that execute at scale. You will also be responsible for automating as much of the repetitive partnership and annotation-quality-evaluation work as possible. A desire to work cross functionally and to build relationships is critical for success in this position.

Position is hybrid in San Francisco - onsite Tuesdays & Thursdays.

In this role, you will:
  • Evaluation Strategy & Design: Define and build evaluation protocols for video-language model quality, working with Research and Product teams to translate ambiguous quality questions into measurable, repeatable benchmarks or evaluation flows.
  • Data-to-Insight Pipelines: Turn raw customer and usage data into structured signal, building pipelines and analyses that surface where our models are underperforming and working with XFN partners to translate these insights into concrete improvement plans.
  • Labeling Operations: Design and execute video-language data collection and labeling projects, automating repetitive processes so the team can focus on higher-leverage work.
  • Vendor & Partner Collaboration: Coordinate with vendor and outsourcing partners executing at scale, keeping quality high through clear guidelines and feedback loops.
  • Cross-Functional Partnership: Work closely with Engineering and Research teams to align on top-priority data and evaluation needs, communicating findings through dashboards and reports that drive decisions.


You may be a good fit if you have:
  • Direct experience building or running model evaluation pipelines (benchmark design, human eval frameworks, automated scoring systems), and translating ambiguous quality questions into measurable criteria.
  • 5+ years of experience working in an AI focused data operations organization.
  • A proven track record designing and executing large scale data projects, including gathering, labeling, and post-processing data.
  • The ability to analyze messy and complex data, identify overarching patterns, and distill your findings into crisp annotation guidelines or other accessible documentation.
  • Proficiency with Python, agentic coding, or other popular industry tools for automation.
  • Excellent communication and project management skills, and the ability to support several projects simultaneously.
  • A foundational understanding of and interest in LLMs/VLMs and multimodal AI.
  • Conviction that data is the key ingredient for the performance of AI models.


Preferred Qualifications:
  • Experience in data collection and labeling for multimodal language models.
  • Experience working with research scientists and engineers.
  • Experience planning and operating new data tools and labeling systems.
  • Expertise or interest in video-centric domains, such as sports, advertising, and content creation.
Tech Stack:
  • Technical: Python, FFMPEG, AWS (S3, EC2)
  • Project Management: Linear, Notion, Google Suite, Encord


Even if there are a few checkboxes that aren't ticked through your prior experience, we still encourage you to apply! If you are a 0-1 achiever, a ferocious learner, and a kind and fun team player who motivates others, you will find a home at TwelveLabs.

Benefits and Perks:

An open and inclusive culture and work environment

Work closely with a collaborative, mission-driven team on cutting-edge AI technology

Full health, dental, and vision benefits

Extremely flexible PTO and parental leave policy. Office closed the week of Christmas and New Years

Monthly wellness stipend

Annual Learning & Development stipend to invest in your growth

Global offices in San Francisco and Seoul, and co-working office memberships for remote team members

🚆 Transportation stipend (SF onsite/hybrid only)

🍲 Daily lunch & dinner provided (SF onsite/hybrid only)

Similar Jobs

More Jobs at Twelve Labs, Inc

More Consumer Technology Jobs

Find similar Computational Linguist, AI Evaluation jobs: