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Marcos Barreto

@marcosbarreto

Financial Operations Analyst who built finance controls at Analin Laboratory and validated ERP data during BCD Travel’s SAP-to-Unit4 migration.

Brazil

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At Analin Laboratory (Laboratório Analin), I structured the finance function from the ground up, covering accounts payable and receivable, cash flow, and inventory controls. I also prepared forecasts, budgets, and reports for management.

At BCD Travel, I validated data during the SAP-to-Unit4 ERP transition and later reviewed accounting and operational records in Unit4 ERP (Agresso), tracking discrepancies through to correction with Excel controls.

From August 2023 to July 2026, I founded and ran a multichannel e-commerce business on Mercado Livre, Shopee, and an independent web store. I managed its P&L, cash flow, pricing, and purchasing, and built Excel models to guide product and channel decisions.

Earlier, at Hagnos Publishing (Editora Hagnos), I handled online order fulfillment and supported inventory accuracy. I use advanced Excel and have experience with SAP, Unit4 ERP, Power BI, and SQL.

Experience

Work history, roles, and key accomplishments

E-commerce Founder & Operator

Self-Employed

Aug 2023 - Jul 2026 (2 years 11 months)

Founded and ran a multichannel e-commerce business on Mercado Livre, Shopee and an independent web store, with full ownership of P&L, cash flow, pricing and purchasing. Built Excel margin and pricing models and implemented controls that reduced recurring errors.

MercadoLibre Shopee Ecommerce P&L management Cash Flow Pricing Purchasing Excel ERP Inventory Management Electronic Invoicing (NF E)Customer Service

Financial Operations Analyst

Analin Laboratory

Aug 2022 - Jul 2023 (11 months)

Structured the company's finance function from the ground up, including Accounts Payable, Accounts Receivable, cash flow and inventory controls. Developed Excel reports and prepared cash flow forecasts, budgets and financial reports to support management decisions.

Accounts Payable Accounts Receivable Cash Flow Financial Reconciliations Excel Budgeting Financial Reporting Inventory Control

Logistics & E-commerce Assistant

Hagnos Publishing

Nov 2020 - Aug 2022 (1 year 9 months)

Managed end-to-end order fulfillment for online channels, including order processing, picking, packing, invoicing (NF-e) and shipping. Inspected incoming goods and maintained online product listings to support accurate inventory control.

Order Fulfilment Order Processing Picking Packing Electronic Invoicing (NF E)Shipping Inventory Control Ecommerce

Accounting Assistant - Internal Audit & Data Quality

BCD Travel

Jan 2018 - Dec 2019 (1 year 11 months)

Reviewed accounting and operational records in Unit4 ERP (Agresso) after migration from SAP, identifying inconsistencies and driving corrections. Built and maintained Excel controls to track discrepancies through to resolution, supporting internal audit activities.

Internal Audit Data Quality Unit4 ERP Agresso SAP Excel Financial Reconciliations