While a Principal of T. Y. Lin International, Jeppe designed the structure for the original Moscone Center, which featured the world's longest underground spans at the time of its construction. Since then, he has continued to expand his amazingly diverse portfolio of structural design achievements, ranging from high rise construction, mixed-use construction, hospitals and schools to roller coasters in the US, Europe, Singapore, Malaysia and Korea. Jeppe received his Masters Degree in Civil and Structural Engineering in his native country of Denmark in 1963. Jeppe is a registered Structural Engineer in California and several other States and Europe (FEANI).