Design Engineer

About the role

This is a product role with leverage: you'll work fluidly across UX research, visual design, and frontend engineering, picking up wherever the most useful work is, prototyping in code when a static design can't capture what an interaction needs to feel like, and shipping with our frontend engineers when something is ready to scale into production. You will join experienced designers, frontend engineers and UX researchers who care deeply about the craft of the product. You bring a point of view on how features should behave, contributing to how the team works, and pull work towards concrete, shippable decisions while retaining a high quality bar. You don't need a biology background. You do need to find complex, data-dense product surfaces genuinely interesting and care about getting them right.

Responsibilities

• What you bring

Requirements

• Strong design taste and sharp attention to that shows up both visually and in how an interface behaves across its real-world states. A portfolio of shipped product work demonstrates this best.
• Experience creating and maintaining design systems, with deep care for layout, motion, affordances, color and visual polish
• Self-starter with an end-to-end owner's mindset. Bias to ship and polish through iteration. You move from ambiguous problem to testable prototype quickly, and you can fluently use AI-native tooling (Claude, Cursor, etc) to compress the iteration cycle.
• Expertise in modern front-end technologies, especially Typescript, CSS, React, and component-driven architectures.
• Strong communicator who builds shared understanding across scientists, designers, and engineers.
• Typically 5+ years of relevant work, though depth and quality of what you've shipped matter more than years on a CV.
• Experience designing expert tool

Benefits

Additional Information

This is Cradle Proteins are the molecular machines of life, used for many therapeutic, diagnostic, chemical, agricultural and food applications. Designing and optimizing proteins takes a lot of expert knowledge and manual effort, through the use of custom computational and biological tools. Machine learning is revolutionizing this space, by enabling high-fidelity protein models. At Cradle, we offer a software platform for AI-guided discovery and optimization of proteins, so that biologists can design proteins faster and at scale. We are already used by clients across biopharma, biotech, agri-tech, food-tech, and academia. We're an experienced team of around 90 people. We've built many successful products before and have enough funding for multiple years of runway. We are distributed across two main locations, Zurich and Amsterdam, and are focused on building the best possible team culture. We offer our employees a very competitive salary, a generous equity stake in the company and a wide range of benefits and career progression opportunities. What we're building At Cradle, we're building a platform that lets biologists use machine learning to design and optimize proteins, faster and at scale. Our users are scientists running complex, mission-critical workflows: designing experiments, preparing and reviewing training data, configuring and running ML models, and interpreting results across multiple cycles of iteration. The product surface is unusually rich and fast-moving. Biological sequence data, experiment tracking, model configuration, data preparation pipelines, and dense result exploration views all sit in a single platform, and the underlying ML capabilities keep evolving. The interfaces around them have to evolve just as quickly, in the hands of domain experts who hold a high bar for clarity and craft. We're looking for a Design Engineer to help us build it.

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