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Marion Schneeweiss

@marionschneeweiss

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Detail-oriented freelance accountant delivering finance & billing process optimizations.

Spain

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What I'm looking for

I seek roles where I can optimize billing and finance processes, lead cross-functional projects, and contribute to cost efficiency and accurate reporting in collaborative, growth-oriented teams.

I am a detail-oriented freelance accountant with over 10 years of experience in the financial sector, focused on SG&A analysis, forecasting, budgeting and billing process optimization across EMEA.

At Iron Mountain I lead SG&A analysis and revenue auditing (US GAAP & IFRS), implemented automated billing solutions and created a centralized rate card database that reduced correction invoices by 50%.

Previously I optimized billing for complex key accounts at Mediaplus, cutting invoice processing time by 50% and streamlining billing workflows for 150+ clients, while performing revenue audits and tailored cost control.

My background includes supply chain and export management at Siemens Energy, where I improved on-time delivery rates by 30% and supported month-end closings using SAP; I combine technical tools and cross-functional collaboration to drive financial consistency.

Experience

Work history, roles, and key accomplishments

Current

EMEA SG&A Manager

Current

Iron Mountain Austria Archivierung GmbH

Jan 2025 - Present (1 year)

Responsible for SG&A analysis, forecasting, and budgeting across EMEA, driving cost optimization and producing management reporting to support strategic decisions.

FP&A Budgeting Forecasting Cost Optimization Management Reporting Financial Analysis Excel Stakeholder Management

Current

Revenue Auditor

Current

Iron Mountain Austria Archivierung GmbH

Jan 2024 - Present (2 years)

Optimized revenue processes in the DACH region (US GAAP & IFRS) and implemented automated billing solutions; developed a centralized rate card database that reduced correction invoices by 50%.

US GAAP IFRS Revenue Recognition Process Improvement Rate Card Management

Manager Buying & Accounting Services

Mediaplus Germany GmbH & Co. KG

Jan 2022 - Jan 2024 (2 years)

Optimized billing processes for complex key accounts, cutting invoice processing time by 50% and implemented revenue audit procedures to streamline billing for over 150 clients.

Accounts Payable Billing SAP Financial Reporting Stakeholder Management

Supply Chain & Export Manager

Siemens Energy Austria GmbH

Jan 2016 - Jan 2021 (5 years)

Managed operational and strategic procurement, export compliance and logistics; improved supplier performance and increased on-time delivery rates by 30% while supporting monthly and quarterly closings.

Procurement demand planning Supplier Performance Logistics SAP Salesforce Cost Control ERP

Education

Degrees, certifications, and relevant coursework

Wifi Salzburg

A-Levels, Finance

2018 - 2018

Completed A-Levels with a major in Finance in 2018.

Siemens AG Austria

Industrial Business Accountant, Accounting

2013 - 2016

Completed an Industrial Business Accountant apprenticeship from 2013 to 2016 with comprehensive training in accounting principles and financial operations.