Principal Design System Designer

Into Design Systems; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

Twin Health is seeking a Principal Design System Designer to define the visual and interactive DNA of its product design system and lay the long-term architectural foundation. You will bridge design, code and AI to translate Figma environments into production code, partnering with engineering and product to drive adoption and measure impact.

You will lead the long-term strategy for scalable design systems across Web, iOS and Android, uphold accessibility, and govern contributions, documentation,

Qualifications

• 8–10 years of experience as a system designer.
• Proven track record as a Principal Designer who built or overhauled a design system at scale.
• Outstanding portfolio demonstrating execution and visual craft with scalable thinking.
• Experience designing scalable systems across Web, iOS and Android with technical constraints.
• Knowledge of WCAG standards and accessible design principles at system level.
• Ability to navigate ambiguity and prioritize high-impact roadmap items.
• Hands-on with front-end constraints and modern tooling for design-to-code handoff.
• Experience leading complex initiatives and driving cross-functional momentum.

Responsibilities

• Define the long-term trajectory and strategic blueprint of Twin Health's product design system.
• Drive rapid iteration and deployment while balancing velocity with architectural integrity.
• Establish and maintain system governance, documentation, and version control.
• Uphold a high bar for visual design and accessibility, creating strong visual direction from scratch.
• Partner with engineering and product to champion adoption and measure impact on quality and velocity.
• Bridge design and engineering using MCP to translate Figma into production code.
• Collaborate across functions, making architectural trade-offs to keep projects moving forward.
• Other duties as assigned.

Skills

Design system leadership

System architecture

Accessibility

Cross-functional collaboration

Frontend constraints knowledge

AI-driven design ops

Tools

Figma MCP servers

AI IDEs

Production-code handoff

Job description

Twin Health is hiring a Principal Design System Designer to define the visual and interactive DNA of its product design system and lay the long-term architectural foundation. Reporting to the Head of Design, the role focuses on building a world-class, future-proof design system, making rapid decisions and deployments, and partnering with engineering and product to drive adoption and measure impact. The position also involves bridging design, code and AI by leveraging Model Context Protocols to automate and translate Figma environments into production code.

What you'll do

• Define the long-term trajectory and strategic blueprint of Twin Health's product design system.
• Drive rapid iteration and deployment while balancing high-velocity execution with long-term architectural integrity.
• Establish and maintain system governance, including contribution models, documentation standards, and version control processes.
• Uphold a very high bar for visual design and accessibility, independently generating and landing compelling visual direction from scratch.
• Partner with engineering and product leaders to champion system adoption and be responsible for metrics measuring impact on product quality, engineering velocity, and user experience.
• Reinvent the bridge between design and engineering, leveraging AI and Model Context Protocols (MCP) to automate and translate Figma into production code.
• Collaborate across functions, making architectural trade-offs as needed to keep cross-functional projects moving forward.
• Other duties as assigned

What they're looking for

• 8-10 years of experience as a system designer.
• Proven track record as a Principal Designer who has built a 0–1 design system or led a massive overhaul of an existing one at scale within a top-tier, fast-paced tech environment.
• An outstanding portfolio demonstrating exceptional execution and visual craft, linked with deep, scalable, and systematic thinking.
• Experience designing scalable systems that translate across Web desktop, native iOS and Android, with understanding of technical constraints and native interaction patterns.
• Thorough knowledge of WCAG standards and a proven track record of embedding accessibility and inclusive design principles into the core of a design system from day one.
• Ability to navigate ambiguity, weigh complex architectural trade-offs quickly, and prioritize roadmap items that deliver immediate, scalable value without slowing momentum.
• Deep understanding of front-end constraints and modern tooling, with experience developing seamless handoff flows and hands-on use of AI-driven design ops (like Figma MCP servers or AI IDEs) to tweak code, manage variables, and automate documentation directly.
• A history of proactively taking the lead on complex initiatives, making the team around you stronger, and guiding projects across the finish line with speed, low ego, and a passion for building technolo