Freelancer profile translated to English.

Description

A well-organized back office is not a luxury – it's the foundation for a functioning business.

Hello, I'm Christina Mitsiani.

I help self-employed individuals and growing companies organize their back office clearly, efficiently, and reliably, so they can concentrate fully on their core business.

With a structured eye for details and processes, I take on administrative tasks such as email management, invoice organization, appointment scheduling, and operational support in daily life. It's not just about relief, but above all about functioning systems and smooth processes.

I enjoy working in the background – but with a tangible impact on your business.

My work is characterized by reliability, discretion, and a high standard of quality.

Languages

German
Native or bilingual
Greek
Native or bilingual
English
Fluent
Spanish
Basic

Workplace preferences

Remote only

Primarily works remotely

Regnauer Fertigbau
Administrative Assistant in Strategic Purchasing
CIVIL ENGINEERING
January 2016 - December 2016 (11 months)
Prien am Chiemsee, Germany
• Complete processing of orders up to invoice verification and booking
• Price negotiations with national and international suppliers
• Supplier and product research as well as selection of suitable sources
• Project-related purchasing of materials, components, and special products for prefabricated houses and commercial projects
• Coordination and monitoring of delivery dates, delivery locations, and logistics processes
• Creation and maintenance of purchasing data in merchandise management and ERP systems
• Support in optimizing purchasing processes and condition comparisons
Invoice Verification Order Processing Preparatory Accounting Master Data Maintenance Strategic Purchasing
EDEKA Südbayern
Administrative Assistant in Branch Accounting
AGRICULTURE
January 2017 - February 2025 (8 years and 1 month)
Trostberg an der Alz, Germany
• Telephone and written support and advice for independent retailers and branches
• Verification, processing, and booking of supplier invoices as well as correction of goods receipts
• Systematic data maintenance and master data updating in merchandise management and accounting systems
• Execution of inventory corrections for food and non-food items
• Negotiations with suppliers on prices, conditions, and complaints
• Support and assistance with branch inventories (preparation, accompaniment, post-processing)
• Provision of information and advice on current purchase and selling prices as well as assortment changes
Accounting Preparatory Accounting administrative support Customer Support Master Data Maintenance
Selbstständig, Remote
Virtual Assistant
March 2025 - Today (1 year and 3 months)
Palma de Mallorca, Spain
• Complete back office management for small businesses
• Accounts receivable and accounts payable accounting
• Creation of monthly reports
• Professional master data maintenance in CRM/ERP systems
• Appointment and deadline management as well as coordination of external service providers
• Optimization and automation of recurring administrative processes
• Secure handling of sensitive data
Backoffice Master Data Maintenance Microsoft Power BI Preparatory Accounting Accounting