Senior UX Designer, Web & E-Commerce

Mill is a waste prevention technology company reimagining what it means to eliminate waste, starting with food. We build smart systems and infrastructure for homes, businesses, and municipalities that transform food scraps from landfill-bound waste into valuable resources, including chicken feed. Tens of thousands of Mil’s residential food recyclers are already helping households divert millions of pounds of food scraps every year, paving the way for our upcoming launch of Mill Commercial—the industry’s first end-to-end solution for managing, understanding, and preventing food waste in commercial environments (e.g. grocery, restaurants, food services). At Mill, we are passionate about building easy-to-use, beautifully designed technologies that keep food in the food system and out of landfills.

Role Description 

Mill is looking for a Senior UX Designer to lead the evolution of our website and e-commerce experience. This role will own the end-to-end UX for Mill.com, including a rapidly growing e-commerce surface with increasing product SKUs, categories, and customer types across consumer and commercial audiences.

You’ll be the design lead for how customers discover, understand, and purchase Mill products online, shaping information architecture, conversion flows, and scalable visual systems with a high bar for craft and clarity. You’ll work closely with Product, Engineering, Growth, and Operations to translate complex business needs into intuitive experiences, and partner with Product Strategy and Content Strategy to define messaging hierarchy, narrative flow, and how product value is communicated across the site. You’ll also drive continuous optimization through iterative experimentation—partnering with Growth and Analytics to run tests, learn quickly, and improve performance over time.

Reporting to the Executive Creative Director, this role sits within Mill’s Creative team as part of the Marketing organization. It’s ideal for a designer who can operate with ownership, lead cross-functional work, and thrive in a fast-moving environment.

Mill is on a mission to build a more sustainable future, and your work will directly support how customers engage with and adopt our products.

Responsibilities

• Own the UX vision and execution for Mill’s website and e-commerce experiences


• Partner closely with Product Strategy and Content Strategists to shape information architecture, messaging hierarchy, and content structure across the site


• Design and evolve Mill’s web and e-commerce experiences within the Creative team, aligning closely with brand systems and marketing priorities across campaigns and surfaces


• Lead design across key customer journeys including product discovery, PDPs, cart, checkout, and post-purchase flows


• Partner with Growth and Analytics on iterative experimentation, including A/B testing, funnel analysis, and performance-driven design improvements


• Identify UX opportunities through qualitative insights and quantitative signals, prioritizing changes that measurably improve conversion and customer understanding


• Design scalable systems that support expanding product assortments, categories, and customer segments


• Partner with Product and Engineering to define requirements, constraints, and tradeoffs early in the process


• Translate complex business, operational, and technical inputs into clear, user-centered solutions


• Maintain a high bar for craft across interaction design, layout, typography, spacing, and visual hierarchy


• Create wireframes, high-fidelity designs, and prototypes to communicate ideas and test assumptions


• Present work clearly and confidently to stakeholders, incorporating feedback without losing design integrity


• Push back when needed, articulating rationale and advocating for the best user experience


• Help evolve Mill’s web design patterns, standards, and documentation over time

Qualifications

Must haves

• 5+ years of hands-on e-commerce design experience


• 10+ years of hands-on website design experience for consumer products


• Deep familiarity with conversion flows, PDPs, checkout, and CMS realities


• Experience designing for performance and optimization, including working with A/B tests, conversion metrics, and iterative improvements informed by data


• Strong UX and UI skillset with the ability to think systemically and execute with taste


• Experience designing mobile-first user experiences, with a strong understanding of responsive layouts, content prioritization, and interaction patterns across devices


• Experience partnering closely with engineering teams, including working within technical constraints, contributing to handoff workflows, and designing for real-world implementation


• Exceptional attention to craft and detail across typography, spacing, and visual hierarchy


• Comfort working in fast-paced, cross-functional environments with real deadlines and shifting inputs


• Clear communicator with an ability to lead reviews, manage stakeholders, explain tradeoffs, and hold a strong point of view


• Proficiency with modern design tools, primarily Figma


• Local to the San Francisco Bay Area with the ability to be in the office at least three days per week

Nice to haves

• Prototyping skills to quickly explore and validate ideas with partners


• Motion design experience for added clarity, polish, and delight


• Experience designing for mobile native apps and multi-surface ecosystems

The estimated base salary range for this position is $215k to $242k, which does not include the value of benefits or a potential equity grant. A wide range of factors are considered in making compensation decisions, including but not limited to skill sets, market conditions, experience and training, licensure and certifications, and business and organizational needs. At Mill, it is not typical for an individual to be hired at or near the top of the range for their role.

Location 

This role is based in the San Francisco Bay Area. In-office presence is required at least three days per week, with flexibility to work from home on other days.