Marco dos Santos
Revenue Management Specialist @ Sterlington
About
There's a specific problem I've spent my career solving: the gap between a sale being made and the money actually arriving. In B2B environments with complex invoicing cycles, disputed balances, and high-volume customer portfolios, that gap is where revenue gets lost, and where I do my best work. At Localiza&CO's Shared Services Center, I managed 200+ key B2B accounts and reduced portfolio delinquency from 12.5% to 2% in six months through risk-based segmentation and account netting. I also designed the business rules for an RPA reconciliation tool that eliminated 1.5 hours of daily manual work across the team, and identified ~$220K in recurring annual revenue through contractual interest analysis in Oracle BI. Tools I work in daily: SAP FI, Salesforce, Oracle BI, Excel pivot models, and customer portals including Ariba, Taulia, and SAP Business Network. Before that, at Vale Fertilizantes, one of the world's largest mining and fertilizer companies, I worked in contracts and quality compliance, auditing 1,200+ third-party labor contracts and mitigating $7.7M+ in legal and financial exposure. That work gave me a solid foundation in financial controls, audit readiness, and process governance that I've carried into every role since. Since 2022, I've been leading operations and contract management for a public authority, overseeing a $9M infrastructure portfolio, coordinating 25+ cross-functional stakeholders including federal agencies, and building an automated compliance reporting module for state audit requirements. It was a deliberate expansion of my operational leadership scope beyond specialist execution. I'm now focused on returning to O2C as my core domain internationally. I completed a structured international career program in 2025 specifically to prepare for this move. I'm actively targeting US remote roles and open to relocation in Europe (Ireland, Netherlands, and Poland are my primary targets). If your organization needs someone who can own the full AR/collections cycle, go beyond transaction processing into process design and automation, and operate in cross-cultural, distributed environments, let's talk.📩 santosmarcoa@icloud.com
Brazil
Minas Gerais
Information Technology & Services
Order to Cash, Accounts Receivable (AR), SAP ERP, Workflow Automation, Financial Reporting, Workflow Optimization, Cash Application, Financial Forecasting, Aging Reports, Spreadsheets, Customer Communication, Customer Interaction, Bank Reconciliation, Payment Processing, Data Management, General Ledgers, Financial Process Improvement, Billing Process, Data Analysis, Compliance Monitoring
Experience

Operations & Contracts Manager
Contagem, MG
After nearly 5 years building OTC operations at Localiza's SSC, I took on a broader management role to develop financial governance, cross-institutional stakeholder management, and process automation skills at a scale not available in specialist positions. Local government authority in one of Brazil’s largest industrial hubs, where I managed federal grant funds, municipal-NGO transactions, and financial reporting, with a focus on data integrity, process efficiency, and audit compliance. - Directed a portfolio of 20+ public infrastructure contracts (~$9M USD) by coordinating 25 cross-functional stakeholders (including technical teams and federal agencies) to mitigate legal risks and prevent a ~$1M USD mandatory reimbursement of public funds. - Spearheaded an 8-month digital transformation of 120+ municipal-NGO contracts by coordinating internal departments, legal teams, NGOs, and a software vendor, implementing a centralized system and enabling real-time audit readiness. - Engineered an automated reporting module for State Audit Court compliance, reducing report preparation time by 90% and eliminating data integrity risks for monthly/annual financial filings.

Accounts Receivable & Collections Specialist (O2C)
Belo Horizonte, MG
A major Latin American mobility company operating through a Shared Services Center (SSC), where I owned and enhanced core Order-to-Cash workflows, spanning AR, collections automation, revenue assurance, and reporting. - Reduced delinquency from 12.5% to 2% within 6 months across a portfolio of 200+ key B2B accounts by designing risk-based client segmentation, expanding pre-invoice validation, and implementing account netting to offset credit notes against overdue balances in SAP and Salesforce. - Designed and tested RPA business rules to automate SAP-based reconciliation activities, eliminating 1.5 hour per day and standardizing execution across the collections team. - Generated ˜$220K USD in recurring annual revenue by identifying late-paid invoices through Oracle BI queries and calculating contractual interest charges, enabling the billing team to issue compliant interest invoices for 300+ affected accounts. - Executed monthly intercompany AR reconciliations between two Localiza&CO entities in SAP, investigating and clearing balance discrepancies to ensure accurate financial statements and group policy compliance. - Built and validated monthly AR ageing, dispute, and collections reports using SAP exports and Excel pivot models, providing forecasting and audit teams with reliable cash-flow and exposure data.

Contracts & Quality Management Trainee
Greater Belo Horizonte
A top-5 global fertilizer producer, supplying 20% of Brazil's crop demand. I worked with SAP contract data and management reports for the executive team at Vale. My main focus was monitoring policy and performance across our production units. I personally audited 1,200+ third-party labor contracts, which mitigated a $7.7M+ exposure to legal and financial penalties. I also standardized our procedures and created an indexed virtual library for documents. That change reduced non-conformities by 10% and helped us secure the ISO 9001 recertification after a nationwide gap analysis. This role built my foundation in financial controls, audit compliance, and process standardization — skills that have informed how I approach O2C governance and reporting throughout my career.

Accounts Receivable & Collections Assistant (O2C)
Contagem, MG
A leading Brazilian provider of industrial machinery solutions, where I began my career supporting accounts receivable, collections, and month-end accounting activities in a multi-industry B2B environment. - Increased debt recovery by 30% across a portfolio of 100+ B2B customers by introducing ageing-based KPIs and negotiating payment settlements aligned with company credit policies. - Reduced average days past due (DPD) by 6 days within 90 days by implementing segmented AR ageing and introducing earlier, proactive customer engagement on overdue balances. - Supported month-end close by maintaining AR/AP subledgers, posting journal entries, and performing reconciliations for three bank accounts using the TOTVS accounting system. - Investigated and resolved billing and payment disputes by coordinating with Sales and customers, documenting cases, and escalating complex issues to senior finance leadership when required.
Education

Business Administration
PUC is consistently ranked as Brazil’s top private university, recognized for academic excellence and strong industry connections. I completed a comprehensive program covering Financial Management, Business Economics, International Markets, Organizational Behavior, and Corporate Governance. Developed strong analytical skills through coursework in Strategic Planning and Financial Mathematics. The final thesis explored internal marketing practices across multiple economic sectors in Brazil, reinforcing business performance through organizational communication and employee engagement strategies.
Marco dos Santos's Contact Information
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