Amazon Marketplace Growth Manager

Job Title: Amazon Marketplace Growth ManagerLocation: RemoteEmployment Type: Full-Time ContractorWorking Hours: 9:00am–5:00pm EST (Monday to Friday)Industry: E-commerce / Health Supplements
About UsMint Source is a remote-first bridge that connects vibrant talent with international clients and agencies, enabling skilled individuals to showcase their expertise on a global stage.
Role OverviewMint Source is hiring an Amazon Marketplace Growth Manager to join a Canadian health supplement brand serving over 1.5 million customers with Health Canada registered, third-party lab-tested products, sold through its own DTC store and on Amazon in both Canada and the US. You'll own the full P&L for the Amazon US account, reporting directly to the CEO and COO, with complete accountability for revenue, margin, and market share. Day to day, you'll run growth strategy, PPC, pricing, and catalog velocity while collaborating with the brand's catalog, logistics, creative, and data analytics teams. Success means one thing: a monthly P&L that hits its targets, backed by decisions you made and can defend. This is a rare chance to run an Amazon account as your own business, not just manage pieces of one.
What You'll DoOwn the full P&L for the Amazon US account, including revenue forecasting, margin management, and monthly performance reporting against targetsDevelop and execute account-level growth strategy across the catalog, including product prioritization, launch support, and promotional planning (Prime Day, seasonal events)Manage all PPC campaigns end-to-end: campaign structure, bid strategy, budget pacing, audience testing, and ACoS/TACoS optimizationDesign and run incrementality tests (holdout groups, geo or time-based lift tests, or platform-native tools) to isolate the true incremental impact of PPC and promotions from baseline organic demandLead pricing strategy, including pricing architecture (pack sizes, bundles, price-per-unit ladders, MAP/discount structure), price testing, demand elasticity analysis, competitive positioning, and margin-impact analysisConduct ongoing keyword research and search query performance analysis to inform both paid and organic strategyMonitor and grow market share within key categories using Helium 10, Amazon Brand Analytics, and Search Query Performance dataDrive listing optimization (titles, bullets, A+ content, imagery direction) based on conversion data and competitive benchmarksAnalyze category, competitor, and consumer trends to identify growth opportunities and defend against threatsCollaborate with the catalog, logistics, creative, and data analytics teams to align execution with account strategy
What We're Looking For5+ years of experience managing Amazon marketplace accountsProven experience owning and being accountable to a full Amazon P&L. This is non-negotiable: catalog management alone or running PPC in isolation doesn't qualify. We're looking for someone who has carried 100% ownership of an Amazon Profit & Loss statement and answered for the resultsFamiliar with Helium 10, Amazon Brand Analytics, and Search Query Performance data, and ideally My Real Profit or a similar profit analytics toolStrong commercial instincts: comfortable with margin math, demand elasticity, forecasting, and the trade-offs between growth and profitabilityA proactive communicator who thrives in a mostly written environment (Slack, email) and keeps leadership informed without being chasedEnergetic, highly motivated, and steady under pressure, with an even balance of collaborative and independent work (roughly a 50/50 split)Genuine commitment to the craft. This role rewards someone who loves this work, takes full accountability for their division's growth, and wants to be compensated well for deliveringA plus, not a dealbreaker: experience in the US marketplace specifically within supplements
Key Performance Metrics (KPIs)Monthly P&L performance against revenue and margin targetsMarket share growth in key categories, driven by optimizations from market share data and search query performanceCatalog growth and velocity: the speed at which new products are brought to marketPPC efficiency and incrementality: ACoS/TACoS trends and demonstrated incremental lift from ad spendWithin the first 30 days, establish the reporting framework and benchmarks with a clear goal structure; by 60 days, run PPC and pricing optimizations against those benchmarks; by 90 days, independently own the full account P&L and growth plan
What You GetHighly competitive compensation discussed individually based on experience and locationBack-office support from Mint Source for payroll, onboarding, and HRFull ownership of a division, with a direct line to the CEO and COOA remote-first role with clear goals, real accountability, and rewards tied to performanceInternational exposure with a fast-growing consumer brand