Dimitris
Keramidas

Entrepreneurial product manager with hands-on experience building tech products from scratch. Founder of Greece's first audiobook subscription platform (acquired) and current Head of Product at Bookvoice.

Building the Greek Audiobook Market from Scratch

These case studies tell the story of how I helped shape the audiobook market in Greece.

TapeTales app interface showing Greek audiobook recommendations
Founder & CEO

TapeTales

TapeTales was the first subscription-only audiobook platform in Greece and was acquired by Bookvoice in 2023.

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Bookvoice app showing audiobook player for Fourth Wing by Rebecca Yarros
Head of Product and Analytics

Bookvoice

Bookvoice is Greece's leading audiobook platform, offering à la carte purchases and flexible subscription plans with access to thousands of titles across genres.

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eVivlio app displaying The Diary of Anne Frank audiobook
Product & Project Manager

eVivlio

eVivlio is a very successful, free audiobook app launched by Greece's Ministry of Education, offering full literary works to Greek students and educators.

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Writings

Insights on product management, subscription business models, and building digital products.

Subscription business metrics illustration showing a figure with an axe approaching a tree labeled 'Subscription Business'
Medium • Product Management

The 3 Most Important Metrics in a Subscription Business

A deep dive into the key performance indicators that drive subscription business success, based on real-world experience building and scaling audiobook subscription platforms.

Read on Medium

Education

Athens University of Economics and Business logo

M.Sc. Business Economics with Analytics

Athens University of Economics and Business

Sep. 2024 - Dec. 2025

Key courses:

• Industrial Org. & Strategy
• Corporate Finance
• Quant Methods
• Behavioral Economics
• Advanced Time Series
• Applied Microeconomics
• Machine Learning
Technische Universität Berlin logo

B.Sc. Electrical Engineering

Technische Universität Berlin

Sep. 2017 - Dec. 2022

Key courses:

• Computer Engineering
• Microprocessors
• Electronics
• Semiconductor Devices
• Programming for Engineers
• Theoretical Physics
• Communication Systems
• Advanced Programming