Stefanie Müllich

Backoffice & Invoice Management | Structure for Your Daily Business

I help companies organize their back office efficiently, reliably, and in a structured manner – so you can concentrate on your core business.

With over 15 years of experience in administration, I handle administrative tasks independently, meticulously, and on time.

My services at a glance:

- Invoicing & preparatory accounting (e.g., DATEV)

- Offer and order processing

- Email and appointment management

- Data maintenance (CRM, Excel, customer master data)

- General office organization & administrative support

- Communication with customers, service providers, and partners

What you can expect from me:

- Structured and reliable working method

- Quick familiarization with existing processes

- Relief in daily business – immediately noticeable

- Discretion and trustworthiness

Tools & Knowledge:

DATEV, MS Office (Excel, Word, Outlook), common CRM systems

I work flexibly and am also available at short notice – I am happy to support you on a project basis or on an ongoing basis.

I look forward to your inquiry.