08/12/2026 updated


100 % available
Administrative & Operations Specialist - Excel - Data & Customer Support
Justiniano Posse, Argentina
Worldwide
Data AnalysisCustomer AdvocacyExcel FormulasGeneral Administrative SupportMicrosoft Office SpecialistSystem Center Operations ManagementOperational Data StoreOracle CRMWorkbooks CRMBack OfficeOperational Support and AnalysisReporting Tools
Hi! I'm Nahir, an Administrative & Operations professional with a Law degree and more than 10 years of experience in administration, customer service, data management, financial operations, reporting, and business support.
I have strong hands-on experience with Excel, CRM systems, databases, administrative platforms, and customer management, and I am comfortable working with large amounts of information while maintaining accuracy and organization.
In my previous role at an agricultural machinery dealership, I worked closely with customers, technicians, suppliers, and the manufacturer. I coordinated the work of approximately 10 technicians and followed service processes from the moment a machine entered the workshop through repair, delivery, invoicing, and collection.
I also analyzed technician productivity and efficiency, service department revenue, labor and parts invoicing, profitability, expenses, and operational KPIs. I managed warranty claims, prepared detailed reports, submitted documentation to the manufacturer, and handled monthly warranty invoicing.
In my current role, I manage relationships with approximately 100 businesses, acting as a link between merchants, a bank, and a payment services provider. My responsibilities include account onboarding, documentation, transaction and settlement control, customer support, payment terminals, data management, and monitoring overdue accounts.
I can help you with:
* Administrative and back-office support
* Excel spreadsheets and data organization
* Data entry and data cleaning
* Data analysis and reporting
* Customer and business support
* CRM management
* Internet research and information gathering
* Document and database management
* Inventory and product data organization
* Financial and administrative data tracking
* Process follow-up and coordination
* Email and communication management
I am organized, analytical, detail-oriented, responsible, and quick to learn new systems and tools. I am comfortable working independently, following procedures, managing multiple tasks, and meeting deadlines.
If you need someone reliable to organize information, analyze data, support customers, or keep your administrative operations running smoothly, I'd be happy to help.
Experience
Professional experience0 - 5 years
Freelancer since2026
Languages
EnglishGoodSpanishNative speaker
Project history
Manage relationships with approximately 100 businesses, providing ongoing administrative and operational support. Act as a liaison between merchants, a bank and a payment services provider.
Responsible for account onboarding, document collection and verification, transaction and settlement monitoring, payment terminal support, customer service and follow-up of overdue accounts.
Use Excel, CRM, Google Drive and internal management systems for data management, reporting, monitoring and administrative processes.
Skills: Administrative Support, Customer Support, Excel, CRM, Data Management, Operations, Financial Administration.
Managed and analyzed operational data for an agricultural machinery service department. Monitored technician productivity and efficiency, service revenue, labor and parts invoicing, profitability, expenses and operational KPIs.
Coordinated the work of approximately 10 technicians and followed service processes from machine intake through repair, delivery, invoicing and collection.
Managed warranty claims with the manufacturer, prepared detailed technical documentation, submitted claims, tracked parts and repairs, and handled monthly warranty invoicing.
Used Excel, CRM and internal management systems on a daily basis to organize information, analyze performance and prepare reports.
Skills: Excel, Data Analysis, Reporting, CRM, Operations, Administrative Support, Customer Service.
Certificates
Agribusiness and Sustainavility
John Deere University2024
Ontological Coaching
Eco Coaching2022
Administration Development Program
Neo Biz Consultores2021
Customer Experience
John Deere University2020