Senior Design Engineer — End-to-End UI & Design System

Product.ai

Los Angeles (CA)

Hybrid

USD 350,000 - 450,000

Full time

14 days+

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Benefits offered by this job

Relocation support

PIU ownership

Hybrid schedule

Job summary

Product.ai seeks a senior design engineer to own and ship end-to-end consumer interfaces across /shop, Verification Checker and SimplyCodes in production React/TypeScript. You will co-own the design system, tokens, motion physics, and rules in code, ensuring precise, trustworthy interfaces that render evidence beside verdicts and support streaming state transitions.

You will collaborate directly with our Founding Designer and founder, shaping the visual, interaction, and motion bar, and

Qualifications

Real human-computer interaction background.
Portfolio of shipped interfaces with design taste.
Production-quality React/TypeScript/CSS.
Fluent in Figma; strong motion and state design.
Experience using AI design tools as multipliers.

Responsibilities

Co-own visual, interaction, and motion bar across surfaces; take directions from sketch to shipped production code with zero handoff.
Own the canonical master components, tokens, motion physics, and rules in the /shop Design Record.
Develop live production interfaces end to end for the Verification Checker, conversational shopping assistant, and its evidence side panel.
Polish motion physics layer: timing, spacing, typography and micro-interactions to convey trust.
Draft and own the seat charter within the first quarter with measurable machine-checkable proof of working.