Senior Product Designer

About the role

Kairon asks people to trust software with work that matters. That trust is earned or lost in the product: in how an agent’s plan is shown, how an approval request reads and how quickly someone can tell why a run failed. Design here is less about decoration and more about making careful behaviour visible.

You’ll join a product design team of four in Lisbon, paired with a product manager and an engineering squad. You’ll own large areas of the product end to end, from early research through to the last pixel in production.

What you’ll do

• Own the design of the eval workbench, where teams build suites, write rubrics and compare runs.
• Redesign the approval inbox so reviewers can decide in seconds with the right evidence in front of them.
• Run regular research sessions with operators, engineers and compliance reviewers.
• Prototype in code or high-fidelity tools to test ideas with real data, not lorem ipsum.
• Contribute to our design system and raise the quality bar across the product.

What you’ll bring

• 6+ years designing complex B2B or developer-facing products.
• A portfolio that shows clear thinking about dense information, states and edge cases.
• Strong interaction design skills and solid visual craft.
• Experience running and synthesising your own user research.
• Clear writing. You explain design decisions in short docs, not long decks.

Nice to have

• Experience designing for AI, automation or observability products.
• Comfort prototyping in React or another front-end framework.
• Background in data visualisation.

Benefits

Competitive salary and meaningful equity, 30 paid days off, full health cover, 20 weeks of parental leave, a $2,000 yearly learning budget and a bright studio in central Lisbon. Read about our values and team.