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Tinjin P Chang has a diverse and extensive work experience in the technology field. Tinjin P started their career as a Customer Service Engineer at Digicard International in 1992 and later held positions such as Senior Unix System Administrator at I-Net in 1994 and Senior UNIX & Informix Administrator at Legato Systems in 1995. From 1996 to 1998, they worked as a Sr. UNIX SysAdmin/Network Engineer at Lombard/Discover Brokerage. Tinjin then joined Chesapeake Computer Consultants as a Senior Network Consultant from 1998 to 2001.

In 2002, Tinjin became the Director of Training & Certification at Riverstone Networks and later joined Cisco as a CCIE Bootcamp Dictastructor in 2003. Tinjin P worked at Cisco until 2005. Tinjin's experience also includes working as an Enterprise Network Architect at West Corporation from 2013 to 2014.

Currently, Tinjin is serving as the Principal Solutions Architect, Chief Scientist, and Contributor at PSG/Tinjinova LLC/WikiDoc.org since 2006. Overall, Tinjin has a strong foundation and expertise in network architecture, system administration, and training within various organizations.

Tinjin P Chang has a diverse education history spanning multiple fields of study. Tinjin P attended Stanford University, where they focused on epigenetics, computational molecular biology, biomedical informatics, and pharmacogenomics. Following this, they pursued a degree with high honors in telecommunications engineering with a specialization in UNIX network programming at UC Berkeley College of Engineering. Later, they enrolled in UC San Diego Jacobs School of Engineering, where they studied engineering physics (electrical & computer engineering), condensed matter physics, and biophysics.

In addition to their education, Tinjin P Chang has obtained various certifications. Tinjin P holds certifications in Amazon Web Services (AWS) including AWS Certified SysOps Administrator, AWS Certified Cloud Practioner, AWS Certified Developer, and AWS Certified Solutions Architect. Tinjin P also holds certifications in sports nutrition as a Certified Sports Nutritionist (CISSN). Furthermore, they have a Certified Information Systems Security Professional (CISSP) certification from (ISC)². Additionally, they have obtained the Juniper Networks Certified Internet Specialist (JNCIS-SEC) certification and the Cisco Certified Internetwork Expert (CCIE) certification. The CCIE certification was achieved in 1999, making it their earliest certification.