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Our Leadership Team

Our team is united by an unwavering passion for quality. We focus on strategy, design, and development as we passionately pursue the bleeding, hair-splitting, cutting-edge of blockchain-based applications. We’re not here to work on just any project or for any client. We come to work in the morning to build the best solutions for the best clients. It’s what makes us tick.

Dejan Tasic

Dejan Tasic

CHIEF OPERATING OFFICER

Dejan has served in several roles with agencies and video production companies prior to joining the team at Razor. He used to work for Coca-Cola, British American Tobacco, Nestle, Delta Ice Cream, Unilever, Exit Festival etc. He has thirty-one international rugby caps with Serbia. His dream is to see Serbia take part in the Rugby World Cup.

Vuk Mirkovic

Vuk Mirkovic

CHIEF EXECUTIVE OFFICER

Vuk is the founder and CEO of Razor Communications. He has founded twelve businesses in his impressive career, two of which he successfully exited. He has completed projects for Mastercard, World Bank Group, Harvard University, Unicef, Carlsberg, and hundreds more. He is a former international water polo player with Serbia.

Calvin O'Callaghan

Calvin O'Callaghan

HEAD OF BUSINESS DEVELOPMENT

Calvin is our head of Business Development. He is a qualified process engineer, with a flair for business development. He started his first business at sixteen and has successfully exited two start-ups since. He is a former international football player with Ireland. Like any good Irishman, his first love is Guinness.

Bojan Todorović

Bojan Todorović

CHIEF TECHNOLOGY OFFICER

Bojan is the CTO of Blockchain Reactor. He was worked with our parent company, Razor, for over two years advising on technical architecture and leading the back-end development team. He has worked on several blockchain projects during his time at Blockchain Reactor. He is the go-to person for fixing all things technical around the office. 

Rick Nassar

Rick Nassar

CHIEF STRATEGY OFFICER

Rick is the Chief Strategy Officer at Blockchain Reactor. With extensive knowledge in the blockchain space, Rick has advised over 250 ICOs on their strategy. He has spoken at numerous global blockchain conferences and was voted as one of the “blockchain people to watch for in Ireland in 2018” by CryptoCoinNews.

Daniel Brown

Daniel Brown

BUSINESS DEVELOPMENT

Daniel is involved in Business Development at Blockchain Reactor. He invested in Bitcoin in 2014 and has since worked in advisory roles for high net worth individuals in the blockchain space. Daniel travels between Austria, America and Serbia, and brings a wealth of experience to our team. Daniel previously worked as a personal trainer.

Giovanni Lesna

Giovanni Lesna

ADVISOR

Giovanni is an advisor to the Blockchain Reactor team. Gio is widely regarded as one of the top advisors in the world for blockchain projects. He has spoken at numerous blockchain events and prides himself on working with blockchain projects that have the potential to revolutionise financial markets globally. Gio is an important part of the Blockchain Reactor team.

Ana Mirkovic

Ana Mirkovic

ADVISOR

Ana is an advisor to the Blockchain Reactor team. She is the Chief Executive Officer of the Digital Communications Institute. She has advised start-ups and multinationals in Europe, including Carlsberg, Unicef and Heineken, in digital marketing. She has recently completed her PhD in behavioural psychology and can often be seen speaking on TV and at high profile conferences.

Vladimir Arandjelovic

Vladimir Arandjelovic

ADVISOR

Vlada is an advisor to the Blockchain Reactor team. He advises our clients on marketing, go-to-market strategies, GDPR compliance, and advertising. He is currently lecturing at the Digital Communications Institute and is a world leader in programmatic advertising. Vlada is based at our Development Center in Belgrade, and continues to ensure our clients’ marketing needs are fulfilled.

Take your project to the next level

We have worked with over 250 clients across the globe. We offer world-leading blockchain consultancy and development services to start-ups and enterprises.

Our brand new office

Our team loves coming to work every day to work on the most exciting projects in the blockchain world. The excitement around our new space is "more than just a feeling".

Ready to implement blockchain technology in your business?

We provide blockchain development, ICO consultancy, smart contract development, smart contract auditing, and blockchain accelerator workshops to start-ups and enterprises looking to leverage the power of blockchain technology in their businesses.