Principal Product Designer

You will own design across the company, with product as the primary focus and brand a close second. Your primary focus is end-to-end UI and UX for our desktop and conferencing applications, working in close partnership with the founders, product, and engineering on a daily basis. Your secondary focus is owning and steering the design system + template library that powers our marketing resources, equipping the GTM team and other internal stakeholders to produce on-brand materials independently. You will set the visual language for a category-defining product from scratch, with meaningful influence over how Diopter shows up in the market. You will operate with a high degree of autonomy and are expected to step in across the business wherever thoughtful design unlocks the next milestone.

Lead the end-to-end design of our desktop and conferencing product, including research synthesis, user flows, interaction models, high-fidelity UI, and interactive prototypes. Partner closely with engineering on specification, handoff, and shipped quality, ensuring the bar holds from Figma through to production. Architect and maintain a scalable design system in Figma, including design tokens, component libraries, usage guidelines, and supporting documentation. Develop the brand templates and visual foundations that allow our GTM team to produce marketing materials, sales collateral, and content at speed without compromising on quality. Translate complex security and AI concepts into interfaces and visuals that feel calm, credible, and immediately understandable to non-technical end users. Operate with velocity, integrating modern AI tooling into your process to expand the scope of what a single designer can ship.

You have 5+ years of design experience and a portfolio that demonstrates both depth in product UI and UX and range across brand and marketing surfaces. You have deep fluency in Figma and have personally built and maintained a production design system, not simply contributed to one. You are native to AI design tooling. Claude is part of your daily workflow; you have hands-on experience with tools like paper.design, Higgsfield, etc. and you are continuously evaluating and integrating new tools into your practice. You have shipped zero-to-one work or operated inside a high-velocity startup serving a large user base, and you are comfortable making consequential decisions in ambiguous environments. You bring high personal agency, with a track record of identifying where design can move the business forward and acting without waiting for direction. You are deeply aligned with Diopter's mission and feel genuine ownership over the brand we are building. You have a distinctive point of view and a clear design taste that is visible across your work. You communicate with clarity, push back thoughtfully on product and business decisions, and treat design as a strategic function rather than an execution layer. Bonus Demonstrated experience designing ambient systems and notification management, particularly in environments where attention and signal density matter. Prior work in cybersecurity, trust and safety, or adjacent high-stakes domains. Experience designing for agentic AI products or AI-native consumer and prosumer applications. Experience designing for developer-facing tools or technical end users.