Neptyne is building the data tools for the 21st century. Our mission is to make spreadsheets programmable by leveraging the power of Python and AI. I worked closely with the product lead and founder to revamp Neptyne’s existing MVP with a more consistent design, new branding, and improved UX. I started by auditing the platform to identify issues using user recordings and feedback. We then created a design system, refining iconography and colors for better usability. With this foundation, we designed lo-fi and hi-fi wireframes for key features and user flows. I also contributed to multiple features and built a new landing page, implementing it in Webflow to align with the updated design system.