Photo of Bernhard Gomig

Bernhard Gomig

Security Engineer

IT Security enthusiast and always looking for a way to break things. He has worked in IT Sec since 2009, secured and administrated HA server systems for 3 years, changed to penetration testing for the following 10 years, and is now auditing smart contracts. Besides that, he is interested in behavior psychology and $THE_WHY.

:(){ :|:& };:

—Fork B.
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Chingiz Mardanov

Security Engineer

With degrees in Computers and Data Science Chingiz comes from a traditional software engineering background, previously building at Unity and Metamask. This then transitioned into developing DeFi protocols and eventually securing them.

Tell me and I forget. Teach me and I remember. Involve me and I learn.

—Benjamin Franklin
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David Braun

Staff Security Auditor

David had a hobby of exploring the tunnels under the University of California at Berkeley while studying for his Electrical Engineering and Computer Science degree because he loves to understand systems and is always asking, "what assumptions underlie that?" With 30 years of general software engineering under his belt he is now focused on improving the security of blockchains and smart contracts.

A radically unconventional future cannot be accommodated within the framework of plans made for a different world.

—K. Eric Drexler
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Dominik Muhs

Security Engineer

Dominik is an Information Security expert. With a background in Software Engineering, Data Engineering, and Data Science, Dominik is just as passionate about building things as he is about breaking them. Dominik enjoys hacking on open-source software, competing in CTFs and hackathons, and clinical psychology. He is co-founder of (P)Sei Pate, an NGO that guides people with PTSD back into a self-determined life.

Never underestimate the determination of a kid who is time-rich and cash-poor.

—Cory Doctorow, Little Brother
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George Kobakhidze

Security Engineer

Math & Technology have fascinated George since childhood. This led him to a degree in Applied Mathematics and a career in software, where he focused on the people aspect of tech -- privacy, personal data, digital identity, human-made data and so on. Eventually he found Ethereum and smart contracts, a promising world that seemed to perfectly fit his interests. At Consensys Diligence he decided to specialize in security auditing to help the technology get adopted safely as smart contract usage skyrockets. In his spare time you can find him traveling the world and enjoying the little things in life.

One for all and all for one.

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Gonçalo Sá (GNSPS)

Security Engineer

Gonçalo is a passionate hacker since he can remember. Disassembling stuff was always his business, either online or at home. He founded 3 different startups (AdTech, BioTech, Mobile App) but when he realized his real love was decentralization, he turned to Ethereum and never looked back. Whenever he’s able, you’ll find him writing or exploiting solidity code, climbing or playing paddle.

If you can't explain it to a six year old, you don't understand it yourself.

—Albert Einstein
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Heiko Fisch

Security Engineer

With an educational background in computer science and experience as a software engineer, Heiko became fascinated by blockchain technology in 2018. First hunting bugs in smart contracts for fun, security quickly became his passion. Another interest of his is layer 2, and before joining ConsenSys, he helped Connext build a cross-chain routing network based on state channels.

Life is available only in the present moment.

—Thich Nhat Hanh
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Joran Honig

Security Engineer

Joran is a security engineer with a passion for automation and software analysis. He has worked on techniques like mutation testing, symbolic execution, fuzzing and static analysis.

You see, but you do not observe.

—Sherlock Holmes
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Liz Daldalian

Program Manager

Liz is a program manager with a background in business operations and software project management. In 2018 she started working in Ethereum, drawn in by the promise decentralization has to reshape our world into one that is more equitable and accessible. Prior to Diligence Liz worked at Truffle Suite.

If I had an hour to solve a problem and my life depended on the solution, I would use the first 55 minutes determining the proper question to ask, for once I know the proper question, I could solve the problem in less than five minutes.

—Albert Einstein
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Martin Ortner (tintinweb)

Security Engineer

A passionate Information Security expert with a background in Software Engineering, Software Quality Management and Automation, Software Vulnerability Research and Exploitation as well as Information Security Management that joined the Blockchain/DLT ecosystem to push for security.

The cat is in the sack, but the sack is not closed. The cat is in it, but it's open...and it's a wild cat.

—Giovanni Trapattoni
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Sergii Kravchenko

Security Engineer

Sergii is a very talented hacker, he has been a big fan of math and algorithms since early childhood. Before joining ConsenSys Diligence he spent years developing complex high-frequency trading systems. Sergii was also doing machine-learning research and created a few fully automated hft strategies. While auditing he’s aiming to find the most complex and sophisticated ways to hack the system in order to secure it.

Once you stop learning, you start dying.

—Albert Einstein
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Tobias Vogel

Product Manager

Tobi has background in banking and business consulting where he mostly helped teams to get more efficient and to reach their goals. He is co-founder of (P)Sei Pate, an NGO that guides people with PTSD back into a self-determined life. Dominik showed him the coldest water to jump in to called Ethereum. When he is not trying to wrap his head around web3 you'll catch him skateboarding or at a rave.

We don't make mistakes, just happy little accidents.

—Bob Ross
Photo of Valentin Quelquejay

Valentin Quelquejay

Security Engineer

Val is interested in way too many things. Some of his passions are thinking about how to make the world better and, occasionally, messing with software security. Always fascinated by computers, he fell in love with blockchain and smart contracts as soon as he understood them. At Diligence, he aims to make web3 safer by focusing on securing all kinds of blockchain systems.

Simplicity is the ultimate sophistication. It's all a matter of perspective.

—Leonardo da Vinci, V. Quelquejay
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Valentin Wüstholz

Security Researcher

Valentin has many years of experience in developing tools and techniques that allow us to produce more reliable and correct software. He received a Ph.D. in Computer Science from ETH Zürich and has been a lead developer for several software analysis tools over the years. At ConsenSys Diligence, he focuses on various R&D efforts, including the Harvey fuzzer and the Scribble specification language.

Simplicity is prerequisite for reliability.

—Edsger W. Dijkstra


Photo of Alexander Wade

Alexander Wade

Security Engineer
Photo of Brianna Montgomery

Brianna Montgomery

Business Development Lead
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Daniel Luca

Security Engineer
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Dean Pierce

Security Engineer
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John Mardlin

Security Engineer
Photo of Nicholas Ward

Nicholas Ward

Security Engineer
Photo of Shayan Eskandari

Shayan Eskandari

Security Engineer
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Steve Marx

Security Engineer