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Опыт работы

Product & Growth Manager

с 03.2025 по 02.2026 (1 год)
Mamma Mia Covers, Дистанційно (Роздрібна торгівля)

• Growth & Margin Engineering: Managed a 600+ SKU portfolio with ~$1M/mo revenue (Amazon + Shopify). Achieved 3% net margin growth and generated an additional $6,000+ in monthly net profit per flagship item by auditing logistics and redesigning packaging.
• Systemic R&D: Built a 4-phase R&D department from scratch, replacing intuitive search with a data-driven validation process and Rufus-ready content optimization.
• High-Impact Launches: Scaled new products to $20,000+ monthly revenue within 90 days while effectively mitigating 2025 trade tariff impacts.
• Quality & Retention: Reduced return rates (RoR) by 4% through sentiment analysis and the implementation of standardized factory inspection protocols.

Amazon Product Manager & Developer

с 05.2023 по 11.2024 (1 год 7 месяцев)
Diogenes, Київ (Маркетинг, реклама, PR)

For two years, I was engaged in product launch and maintenance. By launching, I mean researching and analyzing products/niches, finding a supplier, etc. I have experience with launching a completely unique product that isn't exist yet on Amazon, developing a complex product, which means finding product components and assembling them. I work with a designer to create, for example, packaging, and a SEO specialist to create content for the Amazon listing. I work with Amazon US, JP, UK, and Shopify. After launching the product, I analyze the sales rate, seasonality for further ordering new batches of goods

Образование

V. N. Karazin Kharkiv National University

Computer Science, Cybersecurity, Харків
Высшее, с 2019 по 2023 (4 года)

Дополнительное образование и сертификаты

IT School Hillel

4 месяца

Знания и навыки

• Продаж на Amazon

Дополнительная информация

Serhii Kalynchuk
Product & Growth Manager | R&D Strategy & Margin Engineering Kyiv, Ukraine |
[открыть контакты](см. выше в блоке «контактная информация») | [открыть контакты](см. выше в блоке «контактная информация»)

SUMMARY
Data-driven Product & Growth Manager with 3+ years of experience in high-ticket product
development and scaling. Expert in Value Engineering and Risk Mitigation, specializing in the
strategic optimization of large-scale portfolios (600+ SKUs) with ~$1M/mo revenue. Proven
track record of launching premium products to $20,000+ monthly revenue within 90 days.
Achieved a 3% net margin increase through systemized R&D and deep-dive analytics.

PROFESSIONAL EXPERIENCE

Mamma Mia Covers | Product & Growth Manager
March 2024 – February 2025
• Growth & Margin Engineering: Managed a 600+ SKU portfolio with ~$1M/mo revenue
(Amazon + Shopify). Achieved 3% net margin growth and generated an additional
$6,000+ in monthly net profit per flagship item by auditing logistics and redesigning
packaging.
• Systemic R&D: Built a 4-phase R&D department from scratch, replacing intuitive search
with a data-driven validation process and Rufus-ready content optimization.
• High-Impact Launches: Scaled new products to $20,000+ monthly revenue within 90
days while effectively mitigating 2025 trade tariff impacts.
• Quality & Retention: Reduced return rates (RoR) by 4% through sentiment analysis
and the implementation of standardized factory inspection protocols.

Diogenes Solutions | Amazon Product Manager
May 2023 – February 2024
• Complex Lifecycle Management: Led the end-to-end development of products for
Amazon (US, JP, UK) and Shopify, ensuring patent purity and supply chain resilience.
• Supplier Sourcing & QC: Managed overseas supplier relationships and QC processes,
focusing on high-durability materials and assembly precision.
• Brand Protection: Maintained premium positioning for high-ticket items in saturated
markets by leveraging technical Q&A and A+ content to justify price points through
superior quality.

Flowmar | Amazon Product Researcher
September 2022 – April 2023
• Identified high-potential niches and conducted competitive benchmarking using Helium
10 and Keepa.

CORE COMPETENCIES
• Growth Strategy: Blue Ocean Strategy, Product Differentiation, Rufus & AI Search
Optimization, Value Innovation.
• Analytics: Niche Scoring Models (Custom Python-based), Unit Economics,

Sentiment
Analysis, Margin Optimization.
• Operations: Packaging Optimization (Dim. Weight), Factory Audits (AQL Standards),
Logistics Auditing.
• Risk Management: Patent/IP Research, Regulatory Compliance (2025 Tariff
Management).
• Tools: Helium 10, Keepa, Jungle Scout, Seller Central, Python (Data Analysis),
Advanced Sheets.

EDUCATION
B.S. in Cybersecurity, V. N. Karazin Kharkiv National University