Product Engineer, Mid-Level

About the Role Join a small founding team at an early-stage AI fintech company to build the core interface for private-market operations teams. You will shape the design system and human-in-the-loop experiences that help users understand, review, and act on AI-generated work. What You'll Do Develop and maintain design systems and UX patterns across the product. Build interfaces connecting users with AI agents and their data sources. Create workflows for reviewing, approving, and acting on agent outputs, including exception handling. Conduct user research with operations stakeholders and use findings to refine product features. What We're Looking For One to seven years of professional frontend engineering experience, with strong product intuition and UX craft. Hands-on experience with TypeScript, React, and Tailwind CSS. Experience developing, documenting, or evolving design systems for complex applications. A track record building workflow-driven interfaces with human review, exception handling, or approval steps. Practical experience with AI, machine learning, or LLM product features, and the ability to design clear, trustworthy user experiences. Experience conducting user research and usability testing to inform product decisions. Private-markets or financial-operations experience is helpful, along with comfort working closely with a small team and iterating quickly. Compensation & Benefits Salary range: €70,000 to €110,000 annually. Visa sponsorship is available. Location On-site in Berlin, Germany.