Сергій

SERHII MARIUKHNYK
Amazon Operations Manager & PPC Specialist

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About Me

Amazon Operations Manager and PPC Specialist with 7+ years
LANGUAGE
of experience across US and EU marketplaces. Built and exited
Ukrainian: Native a private label brand (~$400K revenue, ~$90K profit). Most
English: B1 recently reduced ACOS from 60% to 35.75% and grew monthly
Russian: Fluent revenue by 84% managing a 200+ SKU account across 6 European
Czech: A2 markets.

WORK EXPERIENCE
EDUCATION
Amazon EU Account & PPC Manager
Jun 2026 - Amazon PPC Course -
Gennadii Kharchenko May 2026 - present | Markets: DE, FR, IT, ES, BE
2024 - "In-depth Amazon Niche Managed a 200+ SKU Amazon account across 6 European markets
Analysis" - mentorship by Denys Optimized listings and created full SEO-optimized copy in 6
Nesterenko languages; uploaded A+ Premium Content and merged product

2014 - 2018 - National Technical variations into families
University (KhPI) - Master's Degree, Took over full PPC account management and reduced ACOS from
Automotive Engineering 60% to 35.75% within 2 months
Grew ROAS from 1.68 to 2.80 and increased PPC-attributed sales

SKILLS from 5,108 EUR to 11,738 EUR (+130%)
Scaled monthly revenue from 8,895 EUR to 17,340 EUR (+84.5%
- PPC & Campaign Management
- Listing Optimization & SEO month-over-month)
- A+ Premium Content
- Product Research & Validation Owner - Amazon Private Label Brand
- Operations & Supply Chain 2021 - 2025 | Markets: US
- Inventory Planning & FBA Built, scaled, and successfully exited a private label brand (~$400K
- Supplier Sourcing & Negotiation
revenue, ~$90K profit, Flippa)
- Demand Forecasting
- In-depth Market & Competitor Owned end-to-end operations: sourcing, supplier management
Analysis (China), logistics, inventory planning, and FBA
- Team Coordination & Management Improved margins through supplier negotiation and logistics
optimization
TOOLS Maintained stock levels and reduced stockouts through demand
Helium 10 | Keepa | AsinStat forecasting and restocking strategy
Brand Analytics & Opportunity Explorer Coordinated cross-functional execution (PPC, design, listings),
Amazon Ads Console ensuring performance and profitability
Google Sheets / Excel

2019 - 2021 | Markets: US Amazon Seller - Online Arbitrage

Conducted product research and supplier sourcing (including China)
based on demand and margin potential
Managed end-to-end purchasing and logistics processes, including
FBA shipments to the US
Worked with existing listings, optimizing pricing and maintaining
competitiveness
Monitored inventory levels and coordinated restocking to support
consistent sales

2017 - 2019 | Markets: US Amazon Seller - Dropshipping
Built and scaled online stores using the dropshipping model (10K+
listings)
Managed order processing workflows and day-to-day operations
Built and coordinated a small team
Scaled sales volume and optimized operational processes