Senior Ecommerce Merchandising Manager

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

About Madhappy
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 Local Optimist
Local Optimist is a space for radical discovery and connection. By focusing on open conversations and mindful exploration, we orient people with reliable, optimistic resources — available at any moment.

About The Madhappy Foundation
The Madhappy Foundation™ is non-profit organization, 501(c)(3) with a mission to improve mental health globally. Through The Madhappy Foundation™, 1% of proceeds from every sale benefit our efforts to raise awareness, fund research, and positively impact the mental health movement.

Learn more here.