Staff Product Designer, MarianaOS

The role

You will design clear information architecture and flows for complex, data-dense workflows in MarianaOS. You will grow the design system, partner with PMs and engineers, and prototype directly in code.

What you will do

• Design clear, usable information architecture and flows for data-dense workflows in MarianaOS.
• Grow and own the design system, including coded components.
• Partner with PMs and engineers from problem framing through shipped UI.
• Give and receive fast, direct design feedback across the team.
• Prototype directly in code to deliver designs quickly.
• Set short-horizon design direction.
• Run and synthesize lightweight user research and feedback loops.
• Define best design practices and ways of working.

Required qualifications

• More than 7 years of design experience.
• Deep complex-product portfolio.
• Experience working with teams to simplify data.
• Experience designing for technical, operational, or data-heavy products.
• Ability to distill complex problems into a clear story.
• Opinionated visual design direction.
• Collaborative, cross-functional instinct.
• AI fluency and adaptability.
• Uses AI tools such as Claude Code, Cursor, v0, or similar.
• Prototypes in code rather than only in Figma.

Nice to have

• Has been a first designer at a startup before.

About the company

Mariana Minerals is a software-first, vertically integrated minerals company. They aim to supply critical minerals for energy, AI, and defense technologies by combining industry expertise with advanced software and automation.