Marketing SME - Brand Strategy

Mercor; San Francisco (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Cincinnatus LLC is seeking a Marketing SME to join a leading GenAI team focused on evaluating AI outputs against rubrics and strengthening brand strategy in AI training data.

We require 8+ years of marketing experience with top-tier brands, plus hands-on evaluation of LLM outputs. The role demands reliable engagement for at least 35 hours per week during weekdays, with W-2 employment through Cincinnatus LLC and placement at a leading AI Lab.

Qualifications

• 8+ years of marketing experience at top-tier brands or agencies.
• Experience evaluating AI model outputs against rubrics or scoring criteria is mandatory.
• Evidence of career progression in marketing roles (e.g., Manager to Director).

Responsibilities

• Guide research and engineering teams on brand strategy and growth marketing tasks.
• Design domain-relevant marketing tasks and provide grounded solutions.
• Evaluate AI outputs against rubrics and provide clear feedback.
• Develop evaluation guidelines and scoring rubrics for marketing tasks.
• Collaborate with other SMEs to ensure consistency in training data.

Skills

Brand strategy

Growth marketing

Performance marketing

LLM evaluation experience

Verbal and written communication

Education

Bachelor's degree in Marketing or related field

Job description

Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced Large Language Models.

1. Overview

Join a leading AI lab's cutting-edge GenAI team and help build foundational AI models from the ground up. We're seeking talented Marketing subject-matter experts (SMEs) with deep domain expertise and hands-on experience evaluating AI model outputs against rubrics to bring rigor and real-world brand/growth judgment to our AI training data.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI Lab as part of their extended workforce.

2. Key Responsibilities

• Guide research and engineering teams to close knowledge gaps in brand strategy, growth marketing, and campaign-reasoning tasks.

• Design challenging, domain-relevant marketing tasks and write accurate, well-reasoned solutions grounded in real marketing practice.

• Evaluate AI model outputs against structured rubrics and provide clear, written feedback on correctness, judgment, and reasoning quality.

• Develop and refine evaluation guidelines and scoring rubrics specific to marketing tasks.

• Collaborate with other subject matter experts to ensure consistency and accuracy in training data.

3. Core Qualifications

• 8+ years of dedicated professional experience in marketing (e.g., brand strategy, growth marketing, performance marketing) at a recognized, top-tier organization (e.g., P&G, Unilever, Nike, Ogilvy, WPP, Omnicom, or equivalent).

• Prior hands-on experience evaluating LLM/AI model outputs against rubrics or structured scoring criteria — mandatory; please describe this experience in your application.

• Demonstrable career progression (e.g., Marketing Manager > Senior Manager > Director/VP of Marketing).

• Ability to engage reliably for at least 35 hours/week during weekdays.

• Verbal and written communication skills, problem-solving skills, and interpersonal skills.

About Cincinnatus LLC:Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

Equal Employment Opportunity:Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.