David Aristo Bennis

Results-driven Amazon Marketplace & E-Commerce Specialist with over 5 years of hands-on experience in full-cycle Seller Central operations across international marketplaces. Proven expertise in keyword research & optimization, high-ROI PPC campaign management (achieved average 5x ROAS), low-performing product analysis & revival, competitive pricing strategy, and catalog quality. Successfully created and optimized ~1000 product listings, resolved blocked and inactive listings, and drove sales through systematic market and competitor analysis.

Strong command of Amazon advertising, variation management, and data-backed listing optimization.

Amazon Specialist at HAPPET Poland (2025-08 – 2026-07)

• Created and managed the complete lifecycle of ~1000 product listings, including SEO-optimized titles, bullet points, backend search terms, and complex parent-child variation structures.
• Planned, launched, and continuously optimized Amazon PPC / Sponsored Products campaigns, consistently delivering an average ROAS of 5x (€5 revenue generated per €1 ad spend).
• Identified and successfully revived 50+ low-performing products through deep keyword re-optimization, pricing adjustments, content improvements, and listing enhancements, restoring sales velocity.
• Conducted regular competitor and market analysis by extracting pricing and shipping data from competing listings to inform competitive positioning and capture additional market share.
• Diagnosed and resolved blocked, inactive, and suppressed listings by identifying root causes (policy, content, or catalog issues) and implementing permanent fixes.
• Aligned inventory with seasonal demand patterns and executed conversion-focused voucher and discount promotion strategies.

Catalog Assistant – Retail Process at Amazon Development Center Pvt. Ltd. (2022-05 – 2025-08)

• Audited and corrected 1000+ low-performing and inaccurate catalog entries, restoring data integrity and enabling previously non-selling ASINs to start generating sales.
• Performed systematic competitor monitoring across marketplaces, extracting competitor pricing and shipping models to support dynamic competitive positioning strategies.
• Maintained gold-standard catalog quality by identifying errors, resolving inconsistencies, and collaborating with cross-functional retail teams on backend data parameters and catalog architecture.
• Supported continuous listing optimization efforts that improved product discoverability, search ranking, and conversion performance.

Sourcing Specialist at Five2 Job Support (2021-02 – 2022-04)

• Managed end-to-end procurement cycles and sourcing functions to meet client operational requirements and organizational frameworks in a timely and cost-effective manner.

Bachelor of Engineering (B.E.) in Mechanical Engineering – SCAD Engineering College (2014 – 2018)