Shapes in-product language across web, mobile, desktop, and voice for Perplexity's family of apps, from onboarding to agent explanations. Sits on the Design Systems team, working closely with product designers, engineers, PMs, research, brand, and marketing.
What you'll do
- Design and write in-product language across web, mobile, desktop, and voice, including UI copy, flows, onboarding, notifications, empty states, errors, and education
- Partner with product designers from project start, shaping flows, structure, and information architecture
- Name features and products, and own terminology, navigation labels, and taxonomies
- Make complex AI and agent behavior understandable, including what, why, limits, and when input is needed
- Shape how AI-generated content reads by writing and refining prompts and system instructions
- Define content quality standards and help build evaluation criteria, datasets, and reviewer guidance
- Build and maintain voice and tone guidelines, content patterns, and content guidance in the design system
- Use research, data, and experiments to test language and improve comprehension, activation, and task completion
- Partner with brand and marketing so product language and external voice feel unified
- Work with internationalization partners so the product reads well in every supported language
- Review copy in code and ship small language changes directly
What we're looking for
- 5+ years in content design, UX writing, or product design, shipping software at scale
- Excellent portfolio showing how language shaped product decisions, with before and after examples
- Strong UX fundamentals, including interaction design, information architecture, usability, accessibility
- Good product sensibility and judgment about what to build, cut, and prioritise
- Exceptional writing and editing skills across interface copy, explanations, and naming
- Strong AI fluency, including writing prompts, working with LLMs, and judging AI-generated content quality
- Systems thinking, with experience building content frameworks, style guides, or scalable terminology
- Clear communication explaining content decisions and tradeoffs to designers, engineers, and leaders
- Strong focus on shipping great software
Nice to have
- Experience designing content for AI products, assistants, agents, or conversational interfaces
- Experience with prompt engineering, model evals, or working with research teams on model behaviour
- Experience across consumer and enterprise products, including admin, permissions, privacy, billing flows
- Comfort working in code, such as editing strings, reviewing PRs, or prototyping with AI tools
- Experience with localization and writing for global audiences
