Tainá Calixto Monteiro Finance Accountant

Joint and Interest Accounting Advisor

ExxonMobil

Dec 2024 - Aug 2025 (9 months)

As a Joint and Interest Accounting Advisor, I am responsible for monitoring joint interest invoices to ensure the accuracy of expenses sent to partners, while adhering to government regulations and leveraging local accounting knowledge. I coordinate contract audits related to joint interest operations with third parties and government agencies, ensuring compliance and transparency throughout the process. My experience with mergers and acquisitions (M&A) has provided me with a solid understanding of joint interest operations, which are prevalent in the oil and gas sector. This exposure to contracts, partners, and audits enhances my ability to manage post-acquisition governance effectively. Additionally, I utilize financial modeling technique

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Bank Accounting Specialist

Mar 2024 - Nov 2024 (9 months)

• Focal point for technical support in monthly bank accounting balance sheet closing processes. • SAP expertise on keeping mapping rule tables updated and assisting in resolving potential incompatibilities between banking platforms and company tools. • Management and implementation of continuous improvements in the activities of the Bank Accounting team, considering the company's needs to eliminate rework. • Hands-on experience with EDI (ANSI X12 and EDIFACT) covering documents 850, 810, ORDERS, and INVOIC; responsible for ERP-to-EDI mapping, rule validation, end-to-end testing, and supporting process migrations and partner integrations. Additionally, I leveraged financial modeling skills through Excel and SAP-based analyses to enhance

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Planning and Stewardship Analyst

Mar 2023 - Feb 2024 (1 year)

As a Planning and Stewardship Analyst, I was responsible for validating monthly profits of business lines and analyzing them against previous periods, presenting the results to managers during the monthly Planning and Budget (P&B) processes. I developed periodic forecasts of global profits and operating expenses using GDW and SaaS tools, reconciling deviations from actual values to ensure accurate financial reporting. My experience also equipped me with skills relevant to mergers and acquisitions (M&A), particularly in P&L analysis, forecasting, and scenario comparison (actuals vs. budget vs. prior year). These skills are essential for assessing historical performance, projecting future results, and identifying risks and opportunities in ac

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Accounts Reconciliation Analyst

Jul 2022 - Mar 2023 (9 months)

• Monitored account reconciliation in SAP and ensured completion for accounts in Europe and LATAM according to Balance Sheet Account Management Guidelines. • Coordinated the migration of activities to an overseas third-party company, ensuring operational continuity and providing post-migration support. • Leveraged financial modeling skills by structuring Excel-based reconciliation models to analyze balance sheet accounts, investigate variances, and assess the financial impact of discrepancies across Europe and LATAM entities. This involved organizing large datasets, applying rule-based calculations, conducting trend and variance analysis, and validating assumptions to support corrective actions affecting financial statements, thereby demons

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Procurement Oversight Analyst

May 2021 - Jun 2022 (1 year 2 months)

• Created interactive visualizations and reports in Power BI, facilitating data analysis and interpretation to ensure the maintenance and continuous updating of analyses. • Developed an independent control in SQL tool for corporate cards, increasing the accuracy and integrity of data analysis.

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Cards Controls Assistant

Apr 2020 - Apr 2021 (1 year 1 month)

• Analyzed employee expense reports using SQL tools to detect possible deviations from company guidelines, contributing to compliance with regulations. In this role, I consistently utilized Microsoft Excel as a core tool to analyze and reconcile large volumes of employee expense data, applying formulas, pivot tables, and structured spreadsheets to identify inconsistencies and ensure policy compliance. This experience involved building and maintaining analytical worksheets to track spending patterns, validate transactions, and support reporting, which not only reinforced my understanding of corporate compliance but also strengthened my foundations in financial modeling at an operational level. I developed skills in data structuring, assumpti

Tainá Calixto Monteiro

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