Product UI/UX Designer (Engineer)

About us Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/ About the role We are looking for a Product UI/UX Designer (Engineer) who will take full ownership and final responsibility for UI/UX quality across the entire product. This is a senior, high-impact role for an exceptional specialist. You will be the main authority on UI/UX, responsible for ensuring that every interface, flow, and interaction shipped to production is clear, modern, intuitive, and aligned with best UX practices. All UI/UX-related changes must be reviewed and approved by you before release. You are fully accountable for the UX that reaches users. In this role, UX in this role is created directly in code. Instead of producing static mockups, you will assemble and demonstrate your design solutions using Tailwind and existing UI components, collaborating closely with Product, CRO, and Engineering to turn ideas into production-ready UX solutions. Key Responsibilities - Final UI/UX Ownership - Act as the final decision-maker for all UI/UX changes across the product. Nothing related to UI/UX goes to production without your approval. - Code-First UX Design & Implementation - Build and demonstrate UX solutions directly in code using Tailwind and reusable UI components. You are expected to independently assemble layouts, states, and flows in a structured way to clearly communicate your design decisions to the team. - Exceptional UI Quality & Clarity - Deliver clean, modern, minimalistic, and intuitive interfaces that follow UX best practices and reduce cognitive load for users. Every element must serve a clear purpose. - UX Ideation & Product Contribution - Generate and develop UX ideas aimed at improving usability, clarity, engagement, and overall product value. - UX Flow & Interaction Design - Define and refine user flows, screen logic, interactions, and states to ensure a smooth and predictable user experience. - Cross-Functional Collaboration - Work closely with Product Managers, CRO Managers, and Engineers to translate hypotheses into clear, testable, and scalable UX solutions. - UX Quality Control - Ensure UX implementation is consistent, well-structured, and requires minimal rework after release. Location Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours. Life at Ruby Labs At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day. This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen. Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.