UI/UX Designer, Marketplace

About The Role
Purchasing Platform is seeking a UI/UX Designer, Marketplace to own end-to-end experience design for our B2B marketplace, with a focus on improving conversion and adoption across key journeys (add-to-cart, first purchase, second purchase, and ongoing feature usage). In this role you’ll design and iterate on core buyer workflows across web and mobile, balancing strong visual execution with practical, user-centered UX grounded in e-commerce and marketplace best practices.

You’ll create wireframes, prototypes, user flows, and high‑fidelity mockups, then deliver production‑ready specs to engineering with clear annotations and guidance. You’ll also lead efforts to improve navigation and information architecture, build and maintain design documentation (including a component library / style guide), and establish a repeatable review cadence to ensure high‑quality design decisions and implementation fidelity.

This is a highly cross‑functional role partnering closely with product and engineering, using user feedback and behavioral data (analytics, session recordings, interviews) to identify gaps and bring recommendations forward for roadmap consideration.

Key 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.

Design Execution & Delivery

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.

Navigation & Information Architecture

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.

Design Review & Quality

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.

Research & Insight

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.

Cross‑Functional Collaboration

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.

What You’ll Own (Key Metrics)

Funnel performance across key marketplace journeys: add‑to‑cart rate, first purchase conversion, second purchase conversion, and feature adoption.

Conversion and drop‑off rates on priority buyer flows across web and mobile (B2B and B2C).

Navigation and information architecture effectiveness, measured by improved discoverability and reduced friction through key paths.

Design delivery throughput and on‑time handoff, including readiness of wireframes, prototypes, and high‑fidelity designs for engineering implementation.

Implementation fidelity / design quality, including reduction of design debt and fewer design gaps identified during pre‑launch QA walkthroughs.

Consistency and scalability of UI, measured by adoption and completeness of the component library, style guide, and design documentation.

Design review cadence health, including consistent critique/sign‑off participation and clear sprint checkpoints (critique > stakeholder sign‑off > pre‑launch QA).

User insight velocity, including the rate of actionable insights generated from user feedback + behavioral data (analytics, session recordings, interviews) that translate into prioritized design improvements.

Success Looks Like Over the Next 12 Months

Days 1‑30: Design & Orient

– Complete designs for the first set of priority work, ready for engineering handoff; establish overall design direction for the next set of features; complete a legacy UI/UX audit; build strong working relationships with Product and Engineering leads.

Days 31‑60: Solidify & Systematize

– Produce and share navigation maps and key user flows; iterate on initial designs based on engineering constraints and stakeholder feedback; solidify designs for the remaining roadmap scope; establish a repeatable feedback loop and design review cadence.

Days 61‑90: Ship & Evaluate

– Ship design improvements to production; review shipped work against intended outcomes and identify what to iterate; feed learnings back into the design process; expand the UX audit beyond the marketplace to the full end‑to‑end user journey; begin low‑fidelity mockups for next‑year concepts grounded in research.

End of Year: Scale & Momentum

– Marketplace experience improvements have compounded through multiple ship‑measure‑iterate cycles; navigation and core buyer journeys feel clearer and more consistent; design review and implementation fidelity are strong; the team consistently uses research and behavioral data to prioritize the highest‑impact friction reductions.

Experience & Qualifications

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.

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.

Core Competencies

Experience Design

Interaction Design

Visual Design

Information Architecture

User Flows

Prototyping

Design Systems

E‑commerce / Marketplace UX

Collaboration with Product + Engineering

Stakeholder Communication

UX Research + Insight Synthesis

Implementation Fidelity

Scope & Ways of Working

Operates as a solo designer embedded with the Marketplace team (partnering closely with Product and Engineering).

Owns the end‑to‑end design process from concept through engineering handoff and pre‑launch QA review.

Drives design documentation and consistency via a component library, style guide, and shared navigation/user‑flow artifacts.

Culture Fit
We’re looking for a designer who’s energized by the challenge of improving a marketplace experience through a combination of strong design craft and a conversion‑oriented mindset. You care deeply about reducing friction, improving discoverability, and designing workflows that make it easier for buyers to move from browsing to add‑to‑cart to repeat purchasing—and you’re motivated by measurable improvements in adoption and user outcomes. You’re comfortable operating autonomously as a solo designer, but you’re highly collaborative by default—partnering closely with Product and Engineering to translate design intent into high‑quality shipped product. You communicate your decisions clearly to technical and non‑technical stakeholders, and you welcome critique as part of a healthy design review process that raises the bar on quality.

Benefits and Compensation
Competitive Compensation & Benefits: Health & Wellness plans, monthly wellness perk, 401(k) plan with company match, remote work expense reimbursement, paid time off, parental leave, hybrid work model with in‑office requirement, commuter expense reimbursement perk.

Core Values

Bring Joy

Value People

Make an Impact

Keep It Simple

Always Be Curious

Commitment to Equality
We are proud to provide equal employment opportunities (EEO) to all employees and applicants, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age or disability. We celebrate diversity and are committed to creating an inclusive environment for all.

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