Consultancy

Our team offers enterprise consulting services, assisting corporations in the finance, supply-chain, insurance, and energy sectors in evaluating their needs for blockchain technologies and understanding when they are needed and when not. When required, we consult in choosing the right solutions out of the spurring multitude of currently available options; assembling the appropriate in-house team or reaching out to other companies in an as-needed basis.

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Cryptocurrency trading

At SignedBlock, we conduct cryptocurrency algorithmic trading research and develop trading strategies and algorithms in a closed invite-only setting. Our experts in machine learning, artificial intelligence, and signals and systems continuously iterate on high-frequency algorithmic trading methods that allow our clients to make meaningful high-quality controlled-risk investments in an area where traditional brokerage algorithmic trading methods fall short and fresh ideas are required for fruitful exploration.

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Education & Capability Building

We build capabilities at all levels, educating management and technical personnel in understanding blockchain both at a business and managerial level as well as at an in-depth technical level. We assist in every step of the technical implementation on an advisory, auditing and general guidance basis in the specific areas of security, cryptography and management.

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ICO design

We cover the industry standards when it comes to token and protocol creation, being proficient in a variety of protocols such as Ethereum (ERC20 & ERC223). We also assist with custom smart contract development, dApps & API Integration, Customized Crypto Wallets, Security Penetration Testing and code audits.

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Secure storage of crypto assets

We offer crypto assets storage for private investors, providing physical security of private keys, yet having them accessible with reasonable and configurable effort. We strive towards a physical and digital secure storage of the private keys on highest grade hardware security modules with detailed configuration possibilities for individual and role-based access control, enabling flexible multi-signature schemes in addition to native blockchain-specific features.

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Clients

Team

Dionysis Zindros

Dionysis Zindros

Advisor

Dionysis Zindros is cryptography & blockchains PhD student at the National and Kapodistrian University of Athens and a Research Fellow at IOHK. He is a software engineer by training and has worked for companies such as Twitter and Google. He researches blockchain foundations and provable security of the permissionless consensus layer. He holds an Electrical and Computer Engineering degree from the National Technical University of Athens with a major in Computer Science. Dionysis has published and presented in major security conferences such as Financial Cryptography, Black Hat and Real World Cryptography.

Dimitris Karakostas

Dimitris Karakostas

Advisor

Dimitris Karakostas is a blockchains PhD student and a member of the Blockchain Technology Lab at the University of Edinburgh and a Research Fellow at IOHK. He holds an Electrical & Computer Engineering degree from the National Technical University of Athens and has worked as a Software Engineer Intern at Nokia and as a Student Security Researcher at the University of Athens, whilst presenting in major conferences like Black Hat. His research focuses on asset management using distributed ledgers and his interests include decentralized systems, cryptographic applications and software architecture.

Dimitris Grigoriou

Dimitris Grigoriou

Dimitris Grigoriou is a Blockchain Developer at NCSR Demokritos. His work includes Blockchain theory, smart contract development as well as system security. He has previously worked as a security engineer at the University of Athens Cryptography Lab. He has major experience in mobile application industry, working on large Android projects over the past years. He also presented his bachelor thesis at Security BSides Athens. He holds a Computer Science degree from the National and Kapodistrian University of Athens.

Anna Tsilidou

Anna Tsilidou

Anna Tsilidou is the project manager of SignedBlock. She has previously worked as a strategy consultant at McKinsey & Company, advising financial institutions and companies on matters of strategy, operational excellence & digital transformation. Her background is in Finance and she has worked for multinational corporations such as BCG, P&G as well as start-ups. She holds a Bachelor of Science from University in Macedonia in Finance and Accounting.

Themis Papameletiou

Themis Papameletiou

A software engineer and aerospace enthusiast, Themis is currently pursuing a Master’s degree in Electrical and Computer Engineering from the National Technical University of Athens. He has previously worked at Vidpulse in Athens and Google in Zurich. Throughout his studies Themis has delivered several talks and workshops on web security and Git. At SignedBlock he is working on algorithmic trading.

Kostis Karantias

Kostis Karantias

Kostis is a Computer Science & Engineering student at the University of Ioannina. Last spring he interned at Bloomberg in London, working on the trading platform infrastructure. At SignedBlock he is working on algorithmic trading and data collection for crypto markets.

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