AI Character Designer

Description

Robert Half is partnering with our client, a leading technology and entertainment organization, in search of an AI Character Designer to join their team in Seattle. This role supports a high-impact UX and emerging media initiative focused on scaling AI-generated video content. This is a unique opportunity to help define next-generation, AI-driven character experiences in a highly visible, customer-facing environment, with direct impact on how audiences discover and engage with content.

Duration: 6-month contract

Location: Seattle, WA (1 day onsite, 4 days remote)

Pay Rate: $87-93/hour

Hours: 40 hours/week

Position Overview:

The AI Character Designer will serve as a creative technologist responsible for designing and optimizing AI-generated characters within an end-to-end content generation pipeline. This role sits at the intersection of storytelling, generative AI, and video production, with a strong emphasis on building scalable character systems that power short-form, AI-generated video experiences. You will define and refine character frameworks, behaviors, and personas that enable AI systems to consistently generate compelling, cohesive dialogue and visual outputs. This is a highly iterative, systems-driven role requiring both creative storytelling instincts and technical fluency with AI tools.

Key Responsibilities:

• Design and define AI-generated characters, including visual traits, voice, tone, personality, and interaction patterns, ensuring consistency across all generated content
• Develop detailed character frameworks and creative briefs that guide AI systems in generating structured, high-quality scripts and video outputs
• Build and refine AI personas (e.g., character voices, screenwriter personas, production personas) that drive script and video prompt generation
• Evaluate AI-generated scripts and videos, identifying issues such as character drift, inconsistent tone, or unnatural dialogue, and trace root causes across the system
• Continuously improve character consistency and performance by refining prompts, constraints, and system rules
• Establish and manage quality control frameworks, including character continuity, dialogue pacing, and content validation checks prior to video generation
• Define and evolve evaluation criteria and scoring rubrics focused on character performance, including consistency, believability, and engagement
• Collaborate cross-functionally with UX, product, and engineering teams to align character-driven content with broader user experience goals
• Operate in a fast-paced, experimental environment with rapid iteration cycles and direct impact on customer-facing experiences

Requirements

Required Qualifications:

• Strong familiarity with generative AI tools, including LLMs for script generation and video/image models for visual output
• Experience with character design for visual or narrative media (animation, illustration, or character-driven storytelling)
• Proven experience with prompt engineering, including iterating on structured inputs to improve consistency and quality of AI outputs
• Ability to critically evaluate AI-generated content and articulate specific issues such as character inconsistency, tone mismatch, or pacing breakdowns
• Systems-thinking mindset with the ability to design and optimize multi-step creative pipelines rather than one-off outputs
• Experience writing for spoken dialogue, such as screenwriting, voice-over, or audio-first content formats
• Comfort working with structured data formats such as JSON, markdown templates, and timing frameworks
• Working knowledge of video production fundamentals, including framing, pacing, lighting, and camera direction
• Highly self-directed with the ability to independently identify issues, iterate on solutions, and improve system performance

Preferred Qualifications:

• Background in streaming, entertainment, or content recommendation systems
• Familiarity with text-to-speech (TTS) systems and how script structure impacts synthesized voice quality
• Experience building or managing scalable creative systems, including templates, style guides, and quality assurance frameworks

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