Model Designer

TEKsystems•Menlo Park, CA

3d•$75 - $75•Remote

About The Position

We’re looking for a Model Designer to help shape the next generation of AI-driven Ads experiences for a large Fortune 500 enterprise client. This role is at the intersection of content design, conversational UX, and AI systems. The Model Designer will define what high-quality AI interactions look like and translate that vision into model instructions that drive real behavior. This role blends strategy and execution, involving the creation of specifications and continuous improvement of model performance through evaluation data and experimentation.

Requirements

Strong experience in content design, UX writing, or conversational design
Experience working with LLMs or prompt design (writing and iterating on prompts)
Ability to think end-to-end about user conversations, not just individual responses
Comfortable operating in ambiguity and defining “what good looks like”
Experience using data or evaluation signals to iterate and improve outcomes
Strong cross-functional collaboration skills

Nice To Haves

Experience in Ads or performance marketing
Experience in AI conversation design or model design
Familiarity with information architecture or structured content systems

Responsibilities

Define and evolve conversation design frameworks (tone, structure, clarity, actionability)
Translate design principles into system prompts and model instructions
Iteratively improve language-driven model behavior (responses, follow-ups, edge cases)
Use evaluation data (judge scores, testing results) to guide design decisions
Partner with Product, Engineering, and Design to align on quality standards
Test and dogfood model outputs to catch issues early
Work in a 4-week sprint cycle, continuously refining and improving performance