Secure the crypto world

CertiK leads blockchain security by pioneering the use of cutting-edge Formal Verification technology on smart contracts and blockchains. Unlike traditional security audits, Formal Verification mathematically proves program correctness and hacker-resistance.

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Leadership Team

  • Cofounder | Prof. Zhong Shao

    Thomas L. Kempner Professor and Chair of Computer Science Department at Yale University. Ph.D. in Computer Science from Princeton University. Leading figure in research fields such as cybersecurity, operating systems, and certified software. Shao and his Yale FLINT group have developed the world’s first hacker-resistant and concurrent operating system – CertiKOS.

  • Cofounder | Prof. Ronghui Gu

    Tang Family Assistant Professor of Computer Science at Columbia University. Ph.D. in Computer Science from Yale University and Bachelor’s degree from Tsinghua University. Primary designer and developer of CertiKOS and SeKVM. Gu has received: an SOSP Best Paper Award, a CACM Research Highlight, and a Yale Distinguished Dissertation Award.

  • Dr. Zhaozhong Ni

    Dr. Zhaozhong Ni

    Chief Technology Officer

    Zhaozhong Ni was formerly an engineering lead at Google and HP / 3PAR and a researcher at Microsoft Research. He is an expert in systems software and formal verification and has extensive experience in building operating systems kernels and mission-critical enterprise systems. Dr. Ni was a founding member of gVisor, Google’s new security focused OS with cloud-scale production. He holds multiple patents on distributed storage systems. He obtained his BS from Tsinghua University and his PhD in Computer Science from Yale University.

    Dr. Zhaozhong Ni

    Chief Technology Officer

  • Daryl Hok

    Daryl Hok

    Chief Operating Officer

    Daryl Hok spearheaded Corporate Development at FiscalNote, a global machine-learning legal tech company, where he accelerated growth by completing 3 acquisitions in 12 months, including a $180M purchase from The Economist Group. He was also the Product Manager responsible for ideation and release of SaaS products, along with the development of the core data infrastructure. He obtained a dual BA in Economics and Psychology from Yale University, with concentrations centered around behavioral economics

    Daryl Hok

    Chief Operating Officer

  • Dr. Vilhelm Sjöberg

    Dr. Vilhelm Sjöberg

    Sr. Principal Scientist

    Vilhelm Sjöberg was a former associate research scientist at Yale University. He received his Ph.D. in Computer Science from the University of Pennsylvania in 2015. He is an industry-leading expert in software verification, programming languages, and type systems. His research is focusing on language support for layered verified systems like CertiKOS, and currently he is developing DeepSEA which is a language to write verified smart contracts. Dr. Sjöberg is the winner of 2016 ACM SIGPLAN John C. Reynolds Doctoral Dissertation Award.

    Dr. Vilhelm Sjöberg

    Sr. Principal Scientist

  • Muhan Zou

    Muhan Zou

    Chief Strategy Officer

    Muhan Zou serves as the founding member of CertiK from company inception, where he contributes with both his engineering abilities and team leadership. Muhan has years of experience in designing and developing enterprise level SaaS products. Prior to joining, he worked as the engineering lead at Comcast to monetize large-scale ads and settop-box/linear raw data into business insights deliverables. He also worked at Oracle where he built the social cloud platform as a Full Stack Engineer after graduation at Yale University.

    Muhan Zou

    Chief Strategy Officer

  • Yu Chen

    Yu Chen

    Head of China

    Yu Chen was the former CTO at Taopaipai, the biggest platform for professional wedding photography in China. He later became the technical VP/CTO at the WD Group and YouLanW and managed the technical team of apps and O2O system to help millions of blue-collar workers find their jobs. As one of the very first iOS developers, he released 2 apps out of 300 on the first day of iOS AppStore and latered founded Teemsoft, Inc, a game development company with 100+ employees. He obtained his BS from Xi’an Jiao Tong University and his Master in Computer Science from Loyola University Chicago.

    Yu Chen

    Head of China

  • Shaau Lam

    Shaau Lam

    Head of CertiKShield

    Shaau Lam

    Head of CertiKShield

Business Team

  • Charles Smith

    Charles Smith

    BD Manager

    Charles Smith

    BD Manager

  • Marco Calicchia

    Marco Calicchia

    BD Manager

    Marco Calicchia

    BD Manager

  • Andrew Hogue

    Andrew Hogue

    BD Representative

    Andrew Hogue

    BD Representative

  • Chenxi Ji

    Chenxi Ji

    Business Intelligence Analyst

    Chenxi Ji

    Business Intelligence Analyst

  • Nurtilek Taalaibekov

    Nurtilek Taalaibekov

    BD Representative

    Nurtilek Taalaibekov

    BD Representative

Team Background

CertiK unites exceptional talent by sourcing employees from the best universities and companies across the world.

Logos of Schools and Companies

Global Locations

CertiK is an international company with team members around the world.

Global Map