Open to opportunities

Marianna Gkioni

@mariannagkioni

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Experienced office manager and customer service specialist driving operational excellence.

Greece

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What I'm looking for

I seek a role in office administration or customer service where I can streamline processes, manage contracts and orders, and contribute to a collaborative, fast‑paced team with opportunities for growth.

I am an experienced office management and customer service professional with a strong track record in administration, client communication, and operational support across fast‑paced environments. I manage sales orders, create and maintain rental and maintenance contracts in ERP systems, handle invoicing, and communicate with customers to resolve administrative inquiries.

My background includes roles in office administration, back office support, editorial work, and front‑line customer service where I improved document clarity, supported procurement and inventory processes, and sustained high customer satisfaction under high call volumes. I am reliable, detail‑oriented, adaptable, and focused on streamlining workflows to support team productivity and positive client outcomes.

Experience

Work history, roles, and key accomplishments

Current

Central Administration Agent

Current

Konica Minolta

Aug 2024 - Present (1 year 7 months)

Manage sales orders from purchase order to delivery and installation, create and maintain rental and maintenance contracts in ERP, and handle periodic invoicing while communicating with customers on administrative inquiries.

Order Processing Contract Management Invoicing Microsoft Excel Administrative Coordination

Office Administrator

NOVAC

Feb 2022 - Aug 2024 (2 years 6 months)

Supported office management with documentation, correspondence and customer relations, managed phone communications, maintained supplies and procurement, and edited internal documents to improve clarity and accuracy.

Office Administration Customer Service Inventory Management Procurement Microsoft Office

Customer Service Representative

Media Markt

Feb 2020 - Oct 2021 (1 year 8 months)

Provided customer support for internal and external clients, resolved issues to ensure high satisfaction, and handled high-volume customer calls and inquiries.

Customer Support CRM Escalation Management Multitasking Communication

Customer Service / Barista

Elpida Bakery & PIRKAL

Jan 2019 - May 2020 (1 year 4 months)

Delivered front-line customer service and managed daily service operations, maintaining inventory levels and service standards in a fast-paced environment.

Customer Service Food Service Cash Handling Time Management