Administrative Assistant (Athens, Greece)

D ONE is a premium consultancy specialized in data, AI, and transformation. We help organizations turn ambition into impact by aligning strategy, building strong data foundations, delivering high-impact solutions at scale, and ensuring adoption and trust through governance and people focus.

From Zurich, Munich, and Athens, we support clients across Europe with deep expertise along the entire data value chain. Our approach is pragmatic, people-centric, and built for lasting value.

We are seeking a highly organized Administrative Assistant to join our team. You will be supporting the smooth operation of our Athens office, ensuring that all administrative tasks are completed efficiently and to a high standard.

Your tasks will include:

• Managing the day-to-day running of the office. (Presence at our offices located at the Kolonaki district of Athens is required every day during business hours.)
• Providing administrative support to senior management, including working with spreadsheets and operational systems and creating reports.
• Liaising with external suppliers and service providers.
• Assisting with HR tasks, including recruitment, onboarding, and employee relations.
• Supporting our management team in strategic and operational work
• Independently plan and organise professional events for customers and your colleagues

What you bring:

• Bachelor's degree in Business Administration or related field preferred.
• Previous experience in office management or administrative support is a plus.
• Excellent organizational and time management skills.
• Strong communication and interpersonal skills.
• Affinity to technology. Proficiency in working with data and spreadsheets. Database experience is a plus.
• Ability to work independently and take initiative.
• Excellent communication skills in Greek and English. German is a strong plus.

What we offer:

• An uncomplicated and low noise environment that enables to focus on what matters most.
• An international team of talented people from diverse backgrounds that have ambitions, always enjoy an additional challenge, and know how to have fun at work.
• Frequent offsite socializing events.
• Excellent benefits package.

Are you interested in joining a great team with a proven track record and to work on projects that will constantly challenge you?

We are happy to receive your application with reference:

D ONE Value Creation AE
Stamatis Stefanakos
Mourouzi 10
Athens 106 74