• Developed activity-based costing models for accurate expense allocation across departments, channels, segments, and products.• Prepared and delivered executive presentations with detailed insights to support data-driven decision-making and strategic planning.• Analyzed business data to identify cost drivers and optimize resource allocation.• Proposed solutions to enhance expense control, process efficiency, and profitability.• Collaborated with cross-functional teams to implement resource optimization initiatives.• Managed and streamlined responsibility centers to improve operations and reduce accounting errors.Key Achievements:• Allocation of over 11 billion Mexican pesos through costing models.• Nearly 50% reduction in responsibility centers.• Implementation of a responsibility center approval workflow for the entire bank.• Optimization of the integrated costing model, reducing calculation time by 40%.

• Conducted financial statement audits for PCAOB-registered companies, ensuring compliance with regulatory standards.• Executed internal control walkthroughs to assess operational effectiveness and identify areas for improvement.• Performed risk assessments and variance analyses to provide actionable insights for management.• Applied substantive and detailed analytical procedures on significant accounts, enhancing the accuracy and reliability of financial reporting.

• Conducted in-depth research articles on the energy sector, contributing to the understanding of market trends and economic impacts.• Delivered presentations focusing on economic analysis within the energy sector, providing valuable insights.• Managed and analyzed databases, extracting key data to inform strategic decisions.