UI/UX Designer, Marketplace

Purchasing Platform • Chicago, IL

11d • $80,000 - $100,000 • Hybrid

About The Position

Purchasing Platform Inc. is seeking a UI/UX Designer, Marketplace to own end-to-end experience design for their B2B marketplace. The focus is on improving conversion and adoption across key journeys such as add-to-cart, first purchase, second purchase, and ongoing feature usage. The role involves designing and iterating on core buyer workflows for both web and mobile, balancing visual execution with user-centered UX principles grounded in e-commerce and marketplace best practices. The designer will create wireframes, prototypes, user flows, and high-fidelity mockups, delivering production-ready specifications to engineering. Responsibilities also include improving navigation and information architecture, maintaining design documentation (component library/style guide), and establishing a repeatable review process. This is a cross-functional role requiring close collaboration with product and engineering teams, utilizing user feedback and behavioral data to identify gaps and propose solutions for the product roadmap. The role emphasizes driving measurable improvements in user outcomes and conversion rates.

Requirements

• 3–5 years of UI/UX design experience.
• 2+ years of marketplace experience (ideally in B2B enterprise SaaS).
• Strong portfolio showing end-to-end work across web and mobile (research, wireframes, and final UI).
• Proven experience designing for e-commerce or transaction-based products, B2B and/or B2C.
• Proficiency in Figma, including component libraries, auto-layout, and prototyping.
• Working knowledge of HTML/CSS and how designs translate to code.
• Solid grasp of UX methodologies, including usability testing, journey mapping, and information architecture.
• Ability to work autonomously as a solo designer and communicate decisions clearly to technical and non-technical stakeholders.
• Comfortable operating autonomously as a solo designer, but highly collaborative.
• Partnering closely with Product and Engineering to translate design intent into high-quality shipped product.
• Communicate decisions clearly to both technical and non-technical stakeholders.
• Welcome critique as part of a healthy design review process.
• Navigate some ambiguity, iterate quickly based on feedback and real user behavior (analytics, session recordings, interviews).
• Stay focused on shipping improvements while maintaining a high standard for implementation fidelity.
• Bring rigor, clarity, and momentum to the work.

Nice To Haves

• Familiarity with analytics and behavior tools (Google Analytics, Hotjar, FullStory) is a plus.
• Experience with conversion rate optimization (CRO) and A/B testing is a plus.

Responsibilities

• Own end-to-end UX design for the marketplace, optimizing workflows and visual experiences that improve add-to-cart, first purchase, second purchase conversion, and feature adoption.
• Design and iterate on key user flows for both B2B and B2C buyers across web and mobile.
• Ensure a consistent, user-centric experience across the platform grounded in e-commerce and marketplace best practices.
• Identify and flag design opportunities based on user data and platform gaps, bringing recommendations to Product for roadmap consideration.
• Create wireframes, prototypes, user flows, and high-fidelity mockups to communicate and validate design directions.
• Review legacy UI/UX, identify limitations, and deliver updated designs that address them.
• Deliver production-ready specs to Engineering with clear annotations and design guidance for implementation.
• Build and maintain a component library, style guide, and design documentation to drive consistency at scale.
• Audit and redesign information architecture to reduce friction, improve discoverability, and support funnel conversion.
• Develop and maintain navigation maps and user flow documentation as a shared reference across Product, Engineering, and leadership.
• Refine navigation structures continuously based on research, analytics, and post-launch feedback.
• Lead a recurring design review cycle to ensure designs are critiqued and signed off before development begins.
• Define design review checkpoints within sprints (critiques, stakeholder sign-off, and pre-launch QA walkthroughs).
• Ensure implementation fidelity through close collaboration with Engineering; track and flag design debt.
• Gather user feedback and synthesize behavioral data (analytics, session recordings, interviews) into actionable insights.
• Benchmark against competitive and best-in-class marketplace experiences.
• Support Product in understanding user needs and translating insights into improved experiences.
• Partner with Product Management and Engineering to translate design intent into high-quality shipped product.
• Participate in sprint planning and roadmap discussions as a design voice—advising on feasibility and effort (not driving prioritization).
• Serve as a design advocate across the organization, helping stakeholders understand and champion user-centered thinking.

Benefits

• Competitive Compensation & Benefits
• Health & Wellness: Choose from a variety of health plans tailored to meet your needs.
• $75/month wellness perk to support your fitness and mental health.
• Financial Security: Plan for the future with our 401(k) plan, featuring a company match.
• $75/month remote work expense reimbursement to cover your cell phone or internet costs.
• Work-Life Balance: With a minimum of 30 days of paid time off each year, including PTO, holidays, and a winter break, you'll have the time you need to relax and recharge.
• Parental Leave: We support new parents with 6 weeks of paid leave, ensuring you have the time to bond with your little one.
• Hybrid Work Model: Our team enjoys the flexibility of a hybrid work model. Join us in-office each Tuesdays & Thursdays for our All Hands meeting and collaboration sessions. On other days, choose where you work best, whether from home or our office.
• Commuter expense reimbursement perk to make your in-office days easier.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed