Administrative Assistant

Role Description

This is a full-time on-site role for an Administrative Assistant, based in Athens. The Administrative Assistant will handle daily office tasks such as scheduling appointments, managing correspondence, and providing executive administrative support.

Requirements

• Oversee executive calendars, coordinate meetings, and ensure all appointments are well organized.
• Prepare and format documents, reports, and presentations to a high standard.
• Serve as the primary point of contact for incoming calls and emails, routing inquiries promptly and professionally.
• Manage end-to-end travel arrangements, including flights, accommodation, and detailed itineraries.
• Monitor office supplies and coordinate procurement needs as required.
• Support the planning and execution of internal meetings, corporate events, and company functions from start to finish.
• Support HR processes and assist with the onboarding of new employees.
• Handle confidential company and personnel information with the highest level of discretion and integrity.
• Perform day-to-day administrative tasks including data entry, scanning, and copying to keep operations running smoothly.

Qualifications

• Bachelor’s degree in Business Administration, Office Management, or a related field is preferred.
• Proven work experience of 2+ years as an Administrative Officer, Administrative Assistant, Executive Assistant or similar role is desirable.
• Proficiency in Microsoft Office suite (Outlook, Excel, Word, PowerPoint, etc.)
• Excellent knowledge of Greek and English language (written and oral).
• Demonstrates ability to resolve problems timely and effectively.
• Excellent organizational skills and strong attention to detail.
• Ability to work effectively in a fast-paced and team-oriented environment.
• Creative mindset and willingness to learn.

Benefits

• Performance-based bonus scheme.
• Private Health Insurance Plan.
• Career development opportunities and trainings.

The Inventio Culture

At Inventio, we combine governance discipline, strategic thinking, and delivery intensity. We operate as a platform business across asset strategy, transformation, sector platforms, and selective PMO and consulting support. That means moving with pace, but always with judgment, structure, and accountability.

Our culture is built on ownership, performance, and substance. Titles matter less than contribution; clear thinking, commercial judgment, and execution quality matter more. We value initiative, intellectual rigor, collaboration, and the ability to turn complexity into decisions and outcomes for clients, investors, and partners. Joining Inventio means working on high-impact mandates across real various sectors, with exposure to senior decision-makers and a front-row seat in shaping a growing asset strategy and delivery platform. It is a demanding environment, but one with real responsibility, steep learning, and room to grow.

Application Process

If you are inspired by this opportunity and believe you meet the strategic requirements of the role, we invite you to apply!

All applications will be treated with strict confidentiality. Only short-listed candidates who meet the requirements of this role will be contacted.