Staff Product Designer, MarianaOS

• Simplifying complexity. The single most important skill. Show us you can take a complicated product or dataset and turn it into something clear. That matters more than visual polish or raw technical depth.
• Complex product experience. You've designed for a real, non-trivial product and can walk us through the hard tradeoffs you made. Experience designing for technical, operational, or data-heavy products (vs. consumer apps) is important. Showing the ability to distill complex problems into a clear story of what the user is doing and why and how they get to the end goal.
• Opinionated visual design direction. Brings a real perspective on what great visual design looks like; we don’t want middle of the road SaaS visual design. We want future looking visual design which reflects our vision to modernize mining. We need to do this in a way which doesn’t compromise usability in a way which impacts outcomes.
• Collaborative, cross-functional instinct. You're energized by sitting with PMs and engineers to work through a problem together, not just receiving a brief. We need someone whose design judgment the team learns to trust quickly.
• AI fluency and adaptability. The classic mock-first design process (discovery, mocks, iterate) doesn't fit how software gets built anymore, especially at a company where engineers, and increasingly customers and internal users via tools like Replit and other AI builders, can go from idea to working software in hours. We want someone who already uses AI tools (Claude Code, Cursor, v0, or similar) as part of how they work, prototypes in code rather than only in Figma, and adapts their process readily rather than defending a fixed one. This person should be comfortable designing in the open: shaping something as it's being built and used, rather than fully specifying it up front.
• The focus is a seasoned specialist (>7 years of design experience) with a deep complex-product portfolio and lots of experience working with teams to simplify data. Ideally we find someone who has been a first designer at a startup before.

About Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

We already have strong team of engineers, product managers and end users; what we don't have is someone whose full-time job is to sit with complexity and simplify it. We're hiring our first dedicated Staff Product Designer to help bring MarianaOS to the next level. You'll work across teams to ensure that MarianaOS is intuitive, and human-centered on the surface while managing a tremendous amount of complexity underneath. This is not primarily a pixel-polish role; it's a role for someone who can take genuinely complicated, data-heavy workflows and make them feel obvious.

Our culture is built on four principles

Everyone Gets Home Safe. We never put speed or cost ahead of people.

Extreme Ownership. We take full responsibility for outcomes, relentlessly driving toward solutions.

Engineer Out Requirements, then Automate. We simplify, optimize, and then automate for scale.

Share Your Legos. We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

Join us as we build the future of responsible mineral sourcing and supply!