Design Engineer at Assembled HQ · LumiJobs

Responsibilities

We're looking for a design engineer to lead the next generation of Assembled's design system. You'll define the visual and interaction foundations of our product, building the components, patterns, and design language that help every team ship cohesive, accessible, high-quality experiences faster. You'll shape the foundation that every product team builds on, raising the bar for how the entire product looks, feels, and works as Assembled continues to grow.
This is also a chance to help define what design systems look like in AI-native products. Beyond the system itself, you'll establish the reusable patterns that underpin great agentic UX—how people direct, trust, and collaborate with AI. You’ll also partner closely with our Design Systems Engineer to pioneer AI-assisted ways of designing, building, and evolving the system. It's a role for someone who loves visual craft and systems thinking in equal measure, and gets excited by turning great product decisions into patterns that elevate an entire platform.
This is an onsite role based in our San Francisco office, five days a week (Monday–Friday).
Lead the next generation of Assembled's design system. Define the visual language, interaction foundations, components, and patterns that help every product team build cohesive, accessible, high-quality experiences across desktop and mobile.
Establish how the system evolves. Create the documentation, contribution model, and governance that help designers and engineers adopt the system, extend it thoughtfully, and know when new patterns belong.
Define reusable interaction patterns for AI-native products. Create reusable interaction patterns for how people direct, trust, review, and collaborate with AI agents, establishing a shared language that scales across our products.
Pioneer AI-assisted design-system workflows. In partnership with our Design Systems Engineer, use coding agents to generate production-quality UI, understand how components are used, measure adherence, and help teams move from design to implementation faster.
Extend the system through our hardest product problems. Partner with product teams to rethink data-dense, high-complexity workflows, turning solutions to real enterprise needs into reusable patterns that improve the entire product.
4+ years designing and shipping production B2B software, with meaningful ownership of a design system used across multiple teams or products.
Exceptional visual craft. You have a sharp eye and a high bar, and it shows in everything you ship.
You love systems thinking as much as craft. You think in primitives and reusable patterns, you sweat how the details add up, and you're driven to see a great decision embedded consistently across an entire product — not just shipped once. You balance simplicity with flexibility as the product grows.
You’ve built the machinery, not just used it. You have hands-on experience structuring Figma libraries, tokens, variables, components and documentation for use across multiple teams.

Design Engineer

Responsibilities

Qualification

Preferred

Benefits

Company

Assembled HQ

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