Senior Ecommerce Merchandising Manager

madhappy

Los Angeles, CA

JOB DETAILS
SALARY
$110,000–$130,000 Per Year
SKILLS
A/B Testing, Analysis Skills, Backlog Prioritization, Best Practices, Brand Marketing (Branding), Bug Tracking/Defect Management, Cadence, Contract Research Organization (CRO), Cross-Functional, Cross-Selling, Desktop PC, Establish Priorities, Identify Issues, Leadership, Management of Information Systems/Technology (MIS), Marketing Plan, Merchandising, Performance Metrics, Project/Program Management, Psychiatry and Mental Health, Quality Assurance, Quality Assurance Methodology, Quality Metrics, Reporting Dashboards, Retail, Sales, Test Plan/Schedule, Time Management, Up-Selling, User Interface/Experience (UI/UX), Website Conversion, eCommerce
LOCATION
Los Angeles, CA
POSTED
Today

Senior Ecommerce Merchandising Manager

Madhappy is a clothing brand for a community of optimists. Born in Los Angeles, 2017, the brand has built itself around an optimistic ideology, expressed through apparel, events, and experimental retail spaces around the world. Madhappy writes Local Optimist magazine, supports research and awareness in mental health through Madhappy Foundation.

About the Job

Madhappy is looking for an Ecommerce Performance & Site Experience Manager to own the day-to-day performance and customer journey of madhappy.com. This person is the onsite "owner" across homepage, navigation, PLP, PDP, cart, and checkout—responsible for merchandising execution, KPI tracking (in GA4), site health, and a steady cadence of conversion optimization and A/B testing. You'll partner with our Content team for onsite modules and assets, and our external dev partner for implementation.

You must be based in or willing to move to Los Angeles to be considered for this position.

Responsibilities

Onsite performance + trading

Own and monitor core ecommerce KPIs in GA4 and Shopify: traffic, conversion rate, bounce/engagement, AOV, UPT, AUR, revenue per visitor, cart/checkout funnel performance

Run a weekly trading cadence: performance vs plan, best sellers, risers/fallers, inventory-aware merchandising actions, category/collection opportunities

Own onsite calendar execution (drops, refreshes, promos) in partnership with Marketing and Planning

Customer journey & site experience

Ensure the full customer journey is optimized and functioning as expected across mobile and desktop (homepage nav PLP PDP cart checkout)

Own QA processes and bug triage; identify issues quickly and manage prioritization with the dev partner

Partner cross-functionally to ensure onsite messaging is accurate, timely, and aligned with brand/marketing

Merchandising systems (Shopify + Algolia)

Manage onsite merchandising levers: collections, sorting rules, badges, featured placements, cross-sells/upsells

Nice to have: hands-on experience using Algolia to manage search, navigation, merchandising rules, and onsite discovery

CRO + experimentation

Build and maintain an experimentation roadmap (layouts, merchandising logic, PDP modules, cart/checkout improvements)

Define hypotheses, success metrics, and test plans; coordinate implementation; deliver post-test readouts and recommendations

Increase experiment velocity while keeping measurement and learnings rigorous

Analytics & insights (GA4 is core)

Own the site's "single source of truth" performance view: dashboards, annotations, and daily health checks

Proactively diagnose KPI shifts (e.g., channel mix, device mix, PDP load time, OOS sizing, checkout friction) and drive action plans

Ensure GA4 event health and ecommerce tracking integrity in partnership with internal stakeholders/partners (identify gaps, validate launches, troubleshoot anomalies)

Technology & platform improvements

Stay current on ecommerce tools and platform opportunities (search, personalization, reviews, bundling, analytics, performance)

Bring quarterly recommendations with a clear view of impact, effort, and cost

Success in the first 90 days

Establish a KPI cadence and dashboarding in GA4 used by leadership

Improve site QA and reduce incidents (launch errors, broken PDPs, mis-merchandising)

Deliver an experimentation roadmap and ship the first [2–4] tests or meaningful UX improvements

Create a clear dev partner backlog with prioritized tickets and acceptance criteria

Qualifications

Must-have

4–8 years ecommerce experience (DTC a plus) owning onsite performance and merchandising

Strong GA4 experience (ecommerce reporting, funnel analysis, segmentation, anomaly detection, measurement sanity checks)

Deep Shopify experience (collections, product organization, onsite merchandising workflows)

Experience running CRO initiatives and/or A/B testing programsExcellent project management + QA discipline; can write crisp tickets/specs for dev partnersStrong communication and operating cadence (daily health checks, weekly trading)

Nice to have

Experience with Algolia (search/merchandising rules, synonyms, ranking strategy, collections/navigation improvements)

Experience with heatmaps/session replay tools or experimentation platforms

Familiarity with site performance best practices and mobile UX patterns

Benefits

15 days PTO, and 9 days sick pay annually

Paid holidaysHealth, dental, and vision insurance with 75% premium coverage by Madhappy

Retirement plans available

$600 quarterly health stipends

Employee discount and early access to products

$110,000 - $130,000 a year

About the Company

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madhappy