Sanja Sopic

Through MILMA-S, I provide outsourced finance, business operations, and project management support to international businesses, helping them improve efficiency, strengthen financial controls, and streamline operations.

Key areas of expertise:
- Finance Operations: Accounts payable, billing, budgeting, expense management, reconciliation, financial reporting, and operational controls.
- Business Op

• Own and continuously improve operational and financial processes across payroll, billing, onboarding/offboarding, reporting, and related workflows.
• Manage payroll billing and invoice controls, including reconciliation, discrepancy investigation, exception tracking, and coordination of corrections through resolution.
• Conduct operational and financial audits, investigate process breakdowns and

• Manage operational processes across Classification, Onboarding, Payroll, and related workflows, ensuring accuracy, timely execution, and compliance with established policies and SLAs.
• Coordinate international worker onboarding, offboarding, contract changes, and payroll-related activities across EOR vendors and internal stakeholders.
• Manage payroll billing and invoice workflows, including in

• Managed Classification & Onboarding audit, reporting, and operational requirements across Upwork Payroll & Classification programs, ensuring accuracy, compliance, and timely execution.
• Coordinated payroll onboarding, offboarding, contract changes, and engagement-related processes across multiple EOR vendors and stakeholders.
• Managed time-sensitive operational workflows and competing prioriti

• Supported the Program Management team with client billing, payroll vendor invoicing, cost control, and financial administration across outsourced workforce programs.
• Reviewed payroll vendor invoices for accuracy and completeness, approving or escalating discrepancies and exceptions as required.
• Maintained payroll information and records and reviewed employee timesheets, leave records, expens

• Managed billing and financial operations across multiple projects, including invoice review, financial controls, reconciliation, and investigation of discrepancies.
• Prepared budgets, cost estimates, financial analyses, and recurring management reports to support financial oversight and decision-making.
• Developed and maintained financial tracking, billing, payroll, and hourly reporting tools,

- Managed international business operations and executive travel programs, coordinating complex requirements across multiple time zones.
- Oversaw operational and travel budgets, monitored expenses, and prepared financial reports.
- Managed vendor relationships, supplier coordination, contracts, and service delivery.
- Reviewed invoices, reconciled expenses, and supported financial controls and pa

- Managed international business operations and executive travel programs, coordinating complex requirements across multiple time zones.
- Oversaw operational and travel budgets, monitored expenses, and prepared financial reports.
- Managed vendor relationships, supplier coordination, contracts, and service delivery.
- Reviewed invoices, reconciled expenses, and supported financial controls and pa

Managed a broad range of business administration, finance operations, and office management responsibilities across multiple companies, supporting directors, accounting teams, employees, clients, and external business partners.

- Managed business administration and day-to-day operations, including financial coordination, vendor management, and executive support.
- Oversaw invoicing, payment proce

Nov 2023

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Apr 2023

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Dec 2022

Dec 2022