Lijun Liao
Security Solution Architect at NIO
About
Dr. Lijun Liao is a PKI and cybersecurity expert with a PhD from Ruhr University Bochum. He is currently Chief PKI Architect at NIO, having previously held a similar role at Huawei, where he worked on the design and implementation of large-scale public-key infrastructure and security systems. He is the creator and owner of XIPKI, an open-source PKI software project, and an active contributor to the IETF, where his work focuses on C509 PKI, a compact and efficient certificate format designed to address the needs of modern and resource-constrained applications, including emerging post-quantum use cases.
Experience
Security Solution Architect
NIO
Oct 2026 – Present
Dr. Lijun Liao is a PKI and cybersecurity expert with a PhD from Ruhr University Bochum. He is currently Chief PKI Architect at NIO, having previously held a similar role at Huawei, where he worked on the design and implementation of large-scale public-key infrastructure and security systems. He is the creator and owner of XIPKI, an open-source PKI software project, and an active contributor to the IETF, where his work focuses on C509 PKI, a compact and efficient certificate format designed to address the needs of modern and resource-constrained applications, including emerging post-quantum use cases.
Independent
Oct 2026 – Present
Dr. Lijun Liao is a PKI and cybersecurity expert with a PhD from Ruhr University Bochum. He is currently Chief PKI Architect at NIO, having previously held a similar role at Huawei, where he worked on the design and implementation of large-scale public-key infrastructure and security systems. He is the creator and owner of XIPKI, an open-source PKI software project, and an active contributor to the IETF, where his work focuses on C509 PKI, a compact and efficient certificate format designed to address the needs of modern and resource-constrained applications, including emerging post-quantum use cases.
