Marketplace Manager

Hi-Altitude Brands; Sacramento (CA); Remote; USD 100,000 - 135,000; Full time

Benefits offered by this job

Flexible time off

WFH stipend

Medical/Dental/Vision insurance

Life Insurance

401(k) matching

Job summary

Stonehenge Health, a California-based health and wellness brand under the Hi-Altitude family, is seeking an experienced Marketplace Manager focusing on Amazon and Walmart to drive growth across online channels. This role requires strategic thinking, deep marketplace knowledge, and hands-on execution across listings, pricing, ads, and launch management.

You will own ads, optimize listings with SEO, manage stock with supply chain, and collaborate with marketing, operations, and product teams to

Qualifications

• Bachelor's degree in Business, Marketing, or a related field.
• 3-5 years selling on Amazon and Walmart platforms with an e-commerce‑first CPG brand.
• Proven track record increasing sales, profitability, and market share on online marketplaces.
• Experience leading complex, end‑to‑end projects from strategy to launch to scale.
• Experience with inventory management and supply chain coordination.
• Strong understanding of LTV and CAC components.
• Experience in both FBA and FBM models.
• Advanced Excel, data analysis, and reporting tools.

Responsibilities

• Develop and execute marketplace strategies to grow sales, profitability, and brand presence.
• Optimize product listings using SEO, A/B testing, and enhanced content.
• Implement competitive pricing via data analysis and demand forecasting.
• Lead promotional campaigns (Lightning Deals, Coupons, Seasonal Discounts) and analyze impact.
• Own Amazon Ads and Walmart Connect campaigns with budget allocation for profitable growth.
• Maintain stock levels with supply chain coordination to prevent stockouts.
• Ensure compliance with marketplace policies and brand integrity.

Skills

Excel

Data analysis

Amazon Ads

Walmart Ads

Amazon Seller Central

Walmart Seller Center

Advertising platforms

English communication

Education

Bachelor's degree in Business/Marketing

Tools

Amazon Seller Central

Walmart Seller Center

Job description

Hi-Altitude/Stonehenge Health | Health & Wellness | Remote (California-Based)

Stonehenge Health is a California-based health and wellness brand under the Hi-Altitude family of health-forward lifestyle brands. Through science-backed, thoughtfully formulated products, Stonehenge Health supports elevated wellness routines dedicated to helping people feel their best, so they can fully enjoy life's meaningful moments.

We are a fully remote team that values autonomy, ownership, and results. We move fast, test constantly, and hold ourselves to high standards. If you thrive in environments where your work has a direct, measurable impact, you will fit right in.

Position Overview

We seek an experienced Marketplace Manager with a specialized focus on Amazon & Walmart to join our multifaceted team.

Amazon & Walmart Online Marketplace Manager

The Amazon & Walmart Online Marketplace Manager will lead, manage, and grow our portfolio of health and wellness brands in the complex, fast-paced world of online retail. This role is central to our success in multichannel selling, requiring an individual with an in-depth understanding of marketplace dynamics, competitor analysis, and e-commerce best practices on Amazon, Walmart, and other major online marketplaces. The ideal candidate will be a strategic thinker with a proven track record in driving growth and optimizing online sales channels.

Responsibilities

• Develop and execute marketplace strategies to drive sales growth, profitability, and brand presence while ensuring alignment with overall business goals.
• Manage and optimize product listings using SEO best practices, A/B testing, and enhanced content to improve visibility and conversion rates.
• Implement competitive pricing strategies through demand forecasting, historical data analysis, and algorithm-driven optimizations.
• Develop and oversee promotional campaigns such as Lightning Deals, Coupons, and Seasonal Discounts, analyzing their impact on revenue and profitability.
• Own Amazon Ads hands‑on (Sponsored Products, Sponsored Brands, Sponsored Display, and DSP) and Walmart Connect, including account structure, keyword and bid strategy, and budget allocation. Optimize for profitable new‑customer growth against CAC targets.
• Maintain optimal stock levels through close coordination with supply chain teams to prevent stockouts, overstocking, and logistics inefficiencies.
• Ensure compliance with marketplace policies, leveraging Amazon Brand Registry and Walmart guidelines to maintain account health and reputation.
• Identify, monitor, and address risks related to unauthorized sellers, counterfeit products, and MAP policy violations to protect brand integrity.
• Actively manage customer interactions, including review monitoring, Q&A responses, and proactive reputation management to enhance brand trust.
• Utilize advanced data analytics and business intelligence tools to track key performance metrics, assess trends, and inform marketplace decisions.
• Collaborate cross‑functionally with marketing, operations, and product development teams to ensure seamless execution of marketplace strategies.
• Stay ahead of evolving marketplace trends, algorithm updates, and industry best practices to maintain a competitive advantage.
• Oversee new product launches and brand refreshes, working with creative and content teams to ensure a strong marketplace presence.
• Implement external traffic growth strategies, including influencer partnerships, affiliate programs, and targeted social media advertising to drive incremental sales.

Requirements

• Bachelor’s degree in Business, Marketing, or a related field.
• 3-5 years of experience selling on the Amazon.com / Walmart.com platforms with an e-commerce‑first CPG brand.
• Demonstrated success in increasing sales, profitability, and market share on online marketplaces.
• Experience leading large, complex, and first-of-their-kind projects end‑to‑end, from strategy to launch to scale.
• Experience with inventory management and supply chain coordination.
• A strong understanding of LTV and CAC components.
• Experience in both FBA and FBM sales models.
• Expert in Excel, data analysis, and other reporting tools.
• Expert in Amazon Seller Central, Walmart Seller Center, advertising platforms, and analytics tools.
• Hands‑on Amazon Ads media buying experience, personally building, managing, and optimizing campaigns (not solely overseeing an agency) with $100K+ in monthly Amazon ad spend.
• Deep expertise in Amazon Ads strategy and optimization, including campaign architecture, match types, negative keyword strategy, search‑term harvesting, bidding and placement optimization, and separating branded vs. non‑branded spend.
• Excellent English communication and interpersonal skills, with the ability to collaborate effectively across teams and departments.
• Flawless attention to detail in planning and execution of all assigned tasks.
• Ability to thrive in a fast‑paced, results‑driven environment with minimal supervision.

Compensation

$100,000 - $135,000 (based on experience), bonus eligibility.

Benefits

• Flexible paid time off plus 9 annual company holidays.
• Your Birthday is a paid vacation day - take the day to celebrate your awesomeness!
• 100% company‑paid base plan Medical, Dental, and Vision Insurance for employees.
• 100% company‑paid Life Insurance and Short‑Term Disability Coverage.
• 3% Employer contributions to 401(k) regardless of employee participation! (Free money)
• Matching charitable contributions up to $2,500/year.
• $1,200/annual Work from Home (WFH) stipend.
• Employee recognition and rewards program.
• Calm app subscription.
• Pet insurance.
• Free monthly employee product samples and team discounts.
• Employee Referral Program.
• Professional development fund for employees (We love HI-ER Education).
• And a collaborative, innovative work culture!!.

At Stonehenge Health, we believe wellness should support life, not complicate it. If you're a marketplace operator who cares deeply about building profitable, scalable marketplace channels, we'd love to meet you.

Stonehenge Health is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive, welcoming environment for all.