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Cartesia · 13 hours ago

Design Engineer

San Francisco, CA

Full-time

Onsite

Entry, Mid Level

2+ years exp

Cartesia is a pioneering company focused on building the next generation of AI technologies. They are seeking a Design Engineer to enhance their web-based surfaces through design systems and product polish, ensuring high-quality user interfaces and performance.

Artificial Intelligence (AI)Real TimeSoftware

H1B Sponsor Likely

Responsibilities

Own the appearance of our web-based surfaces, with high agency to proactively fix design and performance issues

Design and implement UI features from scratch

Work on last-mile polish, making sure every pixel counts

Develop and maintain a React design system intended to multiply product engineering velocity

Build a process that enables Cartesia to proactively identify gaps & opportunities in the design of its web surfaces

Qualification

React design systemsTypeScriptUI designWeb performanceAccessibilityPixel-level perfectionismPortfolio showcasing workEngineering skillsCollaboration

Required

2+ years of experience

Exceptional at both design and engineering

Ability to spot pixel-level imperfections in digital interfaces; on the engineering side

Proficient in TypeScript, with a focus on writing well-typed, maintainable code

Portfolio (website or social profile) showcasing design engineering work

Perfectionism in the fundamentals: last-mile polish, clear copy, accessibility, and web performance

Experiencing developing and maintaining React-based design systems from scratch

Preferred

Experience working with shadcn/ui, Radix Primitives, or Base UI

Experience optimizing React interfaces to minimize renders, possibly with profiling tools like React Scan

Company

Cartesia

Cartesia provides real-time multimodal intelligence for all devices.

Founded in 2023

San Francisco, California, USA

11-50 employees

https://www.cartesia.cloud

H1B Sponsorship

Cartesia has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (6)

2024 (2)

Funding

Current Stage

Early Stage

Total Funding

$86M

Key Investors

Kleiner PerkinsIndex Ventures

2025-03-11Series A· $64M

2024-12-12Seed· $22M

Leadership Team

Karan Goel

Founder / CEO

Arjun Desai

Co-Founder

Recent News

IndiaTimes

US-based voice AI startup Cartesia to launch operations in India: CEO Karan Goel

2026-01-22

South China Morning Post

Tencent Cloud and Cartesia find a rare common voice in AI speech applications

2025-11-26

prnasia.com

Tencent Cloud and Cartesia Announce Strategic Partnership to Advance Real-Time Voice AI Experiences

2025-11-25

Company data provided by crunchbase