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From: Poland

Location: Warszawa

On Useme since 15 January 2026

About me

I specialise in marketplace sales – mainly Amazon (DE/AT/CH and other EU markets) – and e-commerce. I manage the whole channel: listings, advertising, logistics and data.

What I can do for you: • Amazon Ads (PPC) – SP/SB/SD campaign structure, bid and budget optimisation, negative keywords, ACOS/TACOS control • Amazon listings – titles, bullet points, backend keywords, A+ briefs, keyword research with Brand Analytics • Content compliance – incl. food supplements on the German market • Amazon FBA – inventory planning, shipments, removal orders, reimbursement claims • Automation and reporting – Amazon SP-API, Advertising API, n8n, Google Sheets • SEO and Google Ads for online stores

I start with a data audit (reports, search terms, margin), set a measurable goal, implement changes and report results regularly.

CV / Résumé

Jul 2026 - Now

Founder – own e-commerce brand

SobkoTEC (Sobko Technic sp. z o.o.)

2026. Private-label brand (electrical installation accessories) from scratch: sourcing in Turkey, GS1, Shopify store PL/DE/CZ, Google Merchant Center, Base.com warehouse, launch prep for Allegro, eMAG and Amazon.

Jun 2026 - Now

Amazon Marketplace Manager (B2B)

Marka suplementów i żywności funkcjonalnej (UE)

Since Jun 2026. Amazon EU sales management (supplements, DE): listing rebuild with EFSA compliance, SP/SB/SD PPC, FBA and inventory, VAT/EPR, weekly reporting. Built an n8n + Amazon Ads API pipeline and daily AI reports.

Jan 2026 - May 2026

Marketplace Manager

estyl.pl

Jan–May 2026. Expansion to eMAG, Bol, Kaufland, Allegro, Cdiscount, Pigu and Douglas: offers, pricing, availability. Automated reporting and listings (n8n, Gemini AI Studio), Base.com integrations, backlog in Asana.

Jan 2024 - Dec 2025

Marketplace / Revenue Optimization Specialist

Projekty freelance (firmy z USA)

2024–2025. Supporting US companies facing Amazon sales declines: account, listing and campaign audits, root-cause analysis (pricing, competition, ads, listings), implementing corrective actions that improved sales and profitability.

Apr 2010 - Dec 2025

Founder / Head of E-commerce & Marketplace

LumenTEC (TSresearch Tomasz Sobecki)

2010–2025. LED lighting brand: ~PLN 8M/yr (EUR 1.7M), 1500+ SKUs, Amazon on 7 EU markets (focus DE) + Allegro, eMAG, Kaufland, Pigu, ManoMano. ROAS 4–6.5, ACOS 15–20%, margin ~2× COGS. China sourcing, -40% ops workload (n8n, AI).

Portfolio

SobkoTEC – sklep Shopify PL/DE/CZ

Own electrical-accessories brand built from scratch in 2026: sourcing, GS1 codes, Shopify store for 3 markets, Google Merchant Center, Base.com warehouse. From product to a ready sales channel.

Portfolio item

SobkoTEC – sklep Shopify PL/DE/CZ

SobkoTEC – sklep Shopify PL/DE/CZ

Own electrical-accessories brand built from scratch in 2026: sourcing, GS1 codes, Shopify store for 3 markets, Google Merchant Center, Base.com warehouse. From product to a ready sales channel.

Automatyzacja raportów Amazon Ads (n8n)

n8n pipeline pulling Amazon Ads API v3 reports (campaigns, keywords, search terms, placements) into Google Sheets plus daily AI-generated PPC reports. No manual exports.

Portfolio item

Automatyzacja raportów Amazon Ads (n8n)

n8n pipeline pulling Amazon Ads API v3 reports (campaigns, keywords, search terms, placements) into Google Sheets plus daily AI-generated PPC reports. No manual exports.

DoctorAMZ – usługi Amazon / marketplace

Amazon and EU marketplace growth services run by an operator: account audits, listings, PPC, FBA. Site, offer and SEO content built end to end.

Portfolio item

DoctorAMZ – usługi Amazon / marketplace

DoctorAMZ – usługi Amazon / marketplace

Amazon and EU marketplace growth services run by an operator: account audits, listings, PPC, FBA. Site, offer and SEO content built end to end.

LumenTEC na Amazon (7 rynków UE)

Amazon sales built from zero to 7 EU markets: 1500+ SKUs, listings, Amazon Ads (ROAS 4–6.5), FBA/FBM, cross-border operations. PLN 8M a year.

Portfolio item

LumenTEC na Amazon (7 rynków UE)

Amazon sales built from zero to 7 EU markets: 1500+ SKUs, listings, Amazon Ads (ROAS 4–6.5), FBA/FBM, cross-border operations. PLN 8M a year.