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Olena ZaichenkoOZ
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Olena Zaichenko

@olenazaichenko

Senior Financial Analyst at Johnson & Johnson, resolving inventory and transit discrepancies and contributing to ERP transformations.

Czechia
Message

At Johnson & Johnson, I progressed from Finance Intern to Inventory & COGS Senior Financial Analyst, working across month-end close, account reconciliations, and financial reporting. I investigate sales-order errors and transit-account discrepancies, and coordinate with IT and local finance teams on resolution.

I’ve contributed to ERP and business transformation programs including Osprey, Shockwave, Monarch, and Mentor. My work has included finance testing, master-data setup and validation, and inventory reconciliations across JDE and SAP environments.

I also redesigned the ME Tracker reconciliation file and introduced monthly DMAAI/S-flag maintenance. I use Excel, SQL, Alteryx, and Power BI in reconciliation and reporting work, and provide training and onboarding support to analysts and new joiners.

Experience

Work history, roles, and key accomplishments

Johnson & Johnson logoJJ
Current

Inventory & COGS Senior Financial Analyst

May 2026 - Present (5 months)

Monitors and analyzes sales orders in financial error status, owns transit account reconciliation, and prepares monthly overview reports and Blackline account reconciliations. Drives process standardization, delivers training, and contributes to ERP transformation projects.

Education

Degrees, certifications, and relevant coursework

Czech Technical University (Masaryk Institute of Higher Studies) logoCS

Czech Technical University (Masaryk Institute of Higher Studies)

Mgr., Project and Process Innovation Management

Completed a Master's degree in Project and Process Innovation Management at Czech Technical University in 2025.

Czech Technical University (Masaryk Institute of Higher Studies) logoCS

Czech Technical University (Masaryk Institute of Higher Studies)

Bc., Economics and Management

2020 - 2023

Completed a Bachelor's degree in Economics and Management with a specialization in Marketing and HR at Czech Technical University from 2020 to 2023.

CU

Czech Technical University

Agile Bootcamp, Agile

Completed the Agile Bootcamp certification at Czech Technical University in November 2024.

University of London logoUL

University of London

English for Business, English for Business

Completed the English for Business course at the University of London in 2017.

Tech stack

Software and tools used professionally

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