Mustafa Ustundag Email & Phone Number

İstanbul, Türkiye

Istanbul, Türkiye

•Parts Logistics Management: Oversees parts logistics to ensure timely delivery and efficient inventory management across the META region. Manages parts returns performance, defines key process control measurements, and addresses structural issues.•Customer and Distributor Support: Handles debit and credit adjustments for customers and distributors related to parts and tools returns.•Order Desk Support: Provides exceptional customer support, addressing inquiries and issues related to orders. Manages order processes including configuration checks, booking, shipment tracking, and follow-ups.•Claim Management: Manages online queries related to delivery, invoices, and quality issues, ensuring resolution and customer satisfaction.•Cross-functional Collaboration: Works closely with logistics, accounting, account managers, project managers, and engineers to optimize processes and enhance customer satisfaction.

Istanbul, Turkey

•Invoice and Billing Management: Issued Time & Material and Contract invoices for the META region, ensuring accuracy and adherence to regional financial practices.•Credit and Re-billing Coordination: Managed creation of credit notes and handled re-billing to address payment disputes efficiently across META countries.•Billing Due List Oversight: Prepared and tracked the monthly Billing Due List, with a focus on overdue invoices and ensuring timely follow-up.•Dispute and Error Resolution: Collaborated with the Accounts Receivable team to resolve invoice disputes and correct errors in Work Orders within the META region.•Process Improvement: Assisted in optimizing billing processes and routing overdue cases and Work Orders to the appropriate departments for efficient resolution.•Cross-functional Collaboration: Engaged with various departments and stakeholders across the META region to ensure accurate billing and effective resolution of financial issues.

Invoicing Process Management• Issued and managed various types of invoices including sales, returns, deductions, penalties, reflections, exports, and intercompany invoices in compliance with legal frameworks.• Coordinated with accounts payable, accounts receivable, general ledger, and tax teams to ensure adherence to both internal and external financial requirements.• Initiated and managed accounting records for all invoice types, ensuring accuracy in financial reporting.Exchange Gain/Loss Reconciliation• Calculated and reconciled exchange gains and losses with customers and suppliers.• Fostered and maintained strong relationships with both customers and suppliers.• Issued invoices for exchange gains and managed related accounting records.E-Ledger Preparation• Prepared and uploaded monthly E-ledgers, meeting internal and external requirements, and managed them within the E-Ledger system.E-Integration and Transformation• Stabilized and managed E-Invoice, E-Archive, E-Ledger, and E-Waybill systems, working closely with e-integrator companies.• Ensured compliance with legal requirements for e-transformation and managed related projects (e-archive, e-waybill, e-book, e-invoice) in accordance with legal and internal standards.Additional Financial Support• Assisted with tax declarations and prepared accounting records for monthly VAT submissions.• Supported month-end closing processes, reconciliations, and monitoring of accounts payable (AP) and accounts receivable (AR) records.• Provided assistance to the tax manager and finance manager on various tax and accounting matters.

• Logistics Operations Support: Assisted in coordinating logistics operations, ensuring efficient management of transportation and warehousing processes.• Accounting and Financial Record-Keeping: Managed general accounting tasks, including maintaining accurate financial records and preparing financial reports.• Invoice and Payment Processing: Prepared invoices and processed payments, ensuring accuracy and timely transactions.• Financial Task Support: Supported various financial tasks, contributing to overall financial management and operational efficiency.

Sakarya, Turkey

• Academic Support: Assisted academic staff and students with research activities, including writing, article searches, and book collection.• Library and Website Management: Managed the institute's library and maintained its website to ensure up-to-date resources and information.• Event Organization: Organized academic conferences and panels, facilitating successful events and engaging with participants.• Student Support: Provided guidance to international students on academic matters, helping them navigate their studies and university life.

Lisans Derecesi, International Relations

Erasmus+ Programm, European Studies