Assistant Merchant

About the role

This is a hands-on role at the core of how Poshmark's inventory gets understood, tracked, and activated. You'll work closely with the Category Merchandising Manager to monitor what's moving across the platform, support supply and demand analysis, and help execute the merchandising strategy across categories and channels. You'll be the engine room of the category merchandising function — building and maintaining the reporting that keeps the team informed, tracking trend and inventory signals across categories, and supporting the execution of merchandising plans across editorial, promotional, and in-app surfaces.

This is an ideal role for someone who is curious about how product and data intersect, has strong commercial instincts they want to develop, and wants to grow into a more senior merchandising position over time. You'll learn how to connect supply and demand intelligence to real business outcomes — and be given increasing ownership as you build your track record.

Responsibilities

• Read demand and keep the team ahead of it: Maintain reporting on listing to sales ratios, listing volume, search trends, and category performance to drive in-season actions and adjust future-looking strategies. Catch what's shifting before it becomes obvious, and bring a product and market point of view into weekly and monthly merchandising reviews, not just the numbers.
• Help find the gap between supply and demand: Break inventory health down by category, brand, and price point to see where supply is too thin and where depth isn't converting. Translate the data into a case for what to acquire and what to activate, and bring that case forward rather than just the raw numbers.
• Keep a pulse on fashion and culture: Understand and regularly share what is happening in fashion, resale, and pop culture — emerging trends, brand heat, seasonal shifts — and bring it to the team backed by data, not just instinct. The best actions usually start with someone noticing something early, informing the team, and putting together a course of action.
• Turn the plan into reality: Own the execution layer of merchandising plans — editorial curation, promotional setups, category page updates, and coordination with creative and growth. Accuracy, brand consistency, and hitting the calendar are critical to making the strategy real.
• Be the connective tissue on delivery: Work across growth, creative, product, and supply to keep merchandising plans clearly briefed and executed on time. Spot blockers early and raise them before they become delays — reliability here earns you more ownership over time.

Requirements

Product & Taste

• Genuine interest in fashion, resale, and consumer trends
• A good eye — knows what looks right and what sells
• Excited by the intersection of culture and commerce

Data Comfort

• Comfortable working with dashboards and performance reports
• Can build and maintain trackers in Excel or Google Sheets
• Asks good questions of data — doesn't just report numbers, looks for meaning

Execution & Ops

• Highly organized with strong attention to detail
• Reliable at managing multiple tasks across different teams
• Proactive — flags issues before they become problems

Mindset

• Eager to learn and grow into a more senior merchandising role
• Comfortable in an environment where processes are still being built
• Low ego, high curiosity — asks questions and takes initiative

Nice to Have

• Resale, secondhand, or vintage market knowledge
• Experience in retail buying or planning
• Familiarity with marketplace or e-commerce platforms
• Active Poshmark user or seller
• Experience with editorial or content curation

Qualifications

2–4 years in merchandising, buying, e-commerce, or a related commercial role. We're open to candidates coming from adjacent areas — fashion, retail operations, marketplace management, or even editorial — if they bring the right instincts and a clear appetite to grow in this direction.