Senior Product Designer, Design Systems

Momentus Technologies

Senior Product Designer responsible for the design infrastructure accelerating Momentus' AI-first product strategy. Leading design system audits and defining standards for AI interaction patterns.

Posted 5/19/2026full-timeRemote • North Carolina • 🇺🇸 United StatesSeniorWebsite

About the role

Key responsibilities & impact

Own the design infrastructure that accelerates Momentus' AI-first product strategy.
Audit existing product-line-specific Figma libraries, then lead the migration to a component system that lives in code with tokens as the source of truth
Build and maintain LLM-readable system documentation, accessible to designers, engineers, and Claude
Own the context layer: structured prompt libraries, MCP server integration, and system artifacts that keep Claude producing consistent, on-brand, accessible output
Establish governance that accounts for AI-generated code, not just human-authored contributions
Track and report on system health metrics tied to business outcomes: product velocity, cycle time, and features shipped, alongside coverage and adoption
Lead the design of Momentus' AI interaction patterns as the primary design surface, covering non-deterministic outputs, trust and transparency, agentic workflow UIs, and progressive disclosure of AI behavior
Define standards for how AI features look, feel, and communicate across all product lines
Create reusable patterns for supporting surfaces: onboarding flows, reporting and analytics interfaces, and dashboards
Partner with Engineering to define token architecture, component APIs, and the front-end structure that makes the system scalable and AI-agent-consumable
Collaborate with Product Management to sequence system work against the AI-first product roadmap
Elevate design team capability through pairing, critique, and informal mentorship across all product lines
Define and uphold visual and interaction quality standards across all product lines
Champion accessibility to WCAG 2.2 AA, using AI tooling (automated audits, contrast checks, alt-text generation) to accelerate compliance rather than treat it as overhead
Contribute to design reviews with feedback grounded in system standards and AI-first principles
Own annual VPAT generation across all product lines, coordinating with Engineering and QA to assess conformance, document findings accurately, and publish updated reports on a defined cadence

Requirements

What you’ll need

Demonstrated experience building or significantly maturing a design system in a multi-product B2B SaaS environment
AI-assisted workflows are your primary working mode today, specifically tools like Claude, Claude Code, and Claude Design.
Comfortable producing shippable components and contributing to a shared component repo.
Fluent in design tokens as a source-of-truth architecture, component APIs, and the front-end structures that make a system AI-agent-consumable
Experience designing AI interaction surfaces, including non-deterministic outputs, agentic workflows, or trust and transparency patterns
Strong communication and documentation skills, able to write system guidance that is as useful to an LLM as it is to a human engineer
Experience working in a remote, cross-functional environment

Benefits

Comp & perks

Flexible work arrangements
Professional development opportunities

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

design systemdesign tokenscomponent APIsAI interaction designshippable componentssystem documentationaccessibility standardssystem health metricsAI-generated code governancenon-deterministic outputs

Soft Skills

strong communicationdocumentation skillsmentorshipcollaborationcritiqueleadershiporganizational skillscross-functional teamworkproblem-solvingcreativity