📅 Date: November 20, 2025, 7:30 PM
📍 Organizer: DEV.BG – Blockchain User Group
🎙️ Speaker: Ivan Tsonev, Software Engineer @ Paysafe
🤝 Supported by: Paysafe

🔗 About the Event:
How can smart contracts and blockchain technology enable secure, transparent, and tamper-proof voting systems?
In this talk, Ivan Tsonev will guide you through the design and implementation of a decentralised voting system, powered entirely by blockchain.

You’ll learn how smart contracts ensure trust and transparency, what challenges developers face when building decentralised apps, and what architectural decisions drive scalability and security.
The session will include a live demonstration of a voting smart contract in action.

🔎 Agenda:
👉 What are Smart Contracts and how do they work
👉 Security and trust – ensuring transparency through blockchain
👉 The advantages of decentralisation – transparency and fraud prevention
👉 Challenges in building decentralised applications
👉 Designing a decentralised voting system – architecture and key components
👉 Live demo: Smart Contract in action
👉 Q&A session

🎙️ About the Speaker:
Ivan Tsonev is a Software Engineer at Paysafe, with a strong background in FinTech solutions and software system design.
He holds both Bachelor’s and Master’s degrees in Computer and Software Engineering from the Technical University of Sofia.
At Paysafe, he focuses on crypto-related services and integrations, and he’s also passionate about AI research, particularly diffusion models and U-Net architectures.
Outside of work, Ivan enjoys sports like basketball, tennis, and fitness training.

🎟️ Registration:
The event is free, but pre-registration is required:
👉 Register here

👨‍💻 User Group:
Part of the Blockchain community by DEV.BG – a hub for professionals exploring blockchain technologies, Web3, smart contracts, and decentralised architectures.
Join the group

🔵 Organized by:
DEV.BG – Bulgaria’s leading IT job board.
Looking for a Blockchain-related role? Explore open positions 👉 here.