Alexander Papageorgiou
Verified Expert in Engineering
Cryptography Developer
Athens, Central Athens, Greece
Toptal member since February 3, 2020
Alex is a software developer primarily specializing in blockchain technology, having developed for both commercial applications as well as innovative initiatives. He has spearheaded the development of blockchain applications in European Horizon 2020 projects and worked on building commercial applications, such as a multi-currency account management service that boasted support for over 70 currencies and 13 blockchains.
Portfolio
Experience
- Truffle - 4 years
- JavaScript - 4 years
- Solidity - 4 years
- Cryptography - 4 years
- Node.js - 4 years
- Blockchain - 4 years
- Docker - 3 years
- Security - 3 years
Availability
Preferred Environment
Docker, Visual Studio Code (VS Code), Windows, Linux
The most amazing...
...project I've developed was a decentralized online method through which one can retain a cryptocurrency account with zero-access encryption.
Work Experience
Software Engineer
Interfima
- Developed software for clients who wanted to digitally transform their internal operations primarily consisting of PoCs and full solutions in the form of web, mobile, and desktop applications.
- Focused on clients in the fintech and healthcare space, while internal tools were developed when necessary for the company. Peer-to-peer protocols were also utilized for streaming data security in a local network between its peers.
- Achieved the adoption of a zero-access peer-to-peer encrypted messaging protocol as well as local recording techniques for web conferences.
Blockchain Specialist
Inlecom
- Led the blockchain integration and development on the CHARIOT Horizon 2020 project, where I developed a decentralized PKI cryptographic system.
- Led the blockchain research and innovation aspect on the ICONET Horizon 2020 project, where I developed a purpose-built blockchain for PI logistics using contract arbitration via Ricardian contracts.
- Worked on several European projects on the proposal stage to meaningfully introduce blockchain technology.
- Contributed to several publications for the aforementioned projects and have presented in major conferences such as IEEE CAMAD 2019.
DLT Technician
Eriden, LLC.
- Integrated various distributed ledger technologies (DLT) into the payment infrastructure of a banking institution, supporting the provision and complete management of cryptocurrency accounts.
- Forked library implementations of blockchain clients to properly adjust and interface them with new blockchains not yet added to a library.
- Coded methods with arbitrary ERC20 and other token-standard tokens that were able to be interacted with via the payment infrastructure. It included the cryptographic generation of blockchain key pairs as well as unique encryption methodologies to secure any operations that involved the private key.
Experience
Arctus Decentralized Zero-access Wallet
Education
Bachelor's Degree in Computer Science
Athens University of Economics and Business - Athens, Greece
Skills
Libraries/APIs
WebRTC, Node.js
Languages
Go, JavaScript, Solidity
Frameworks
React Native, Tendermint, Fastify, Nano, Angular, Truffle
Storage
CockroachDB, MongoDB
Platforms
Hyperledger Fabric, Docker, Windows, Ethereum, Blockchain, Linux, Visual Studio Code (VS Code)
Other
Security, Bitcoin, ERC-20, EOS, IOTA, Zcash, Dash, Litecoin, NEO, Cryptography
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