Lopaka is a computer scientist working for the USGS, Science Analytics and Synthesis, Advanced Research Computing team.
- U.S. Geological Survey – Advanced Research Computing: Geophysicist (SWAP/TDY, 2021)
- U.S. Geological Survey – Hawaiian Volcano Observatory: Geophysicist (2007 - present)
- U.S. Geological Survey – Mineral Resources Program, Crustal Imaging and Characterization Team: Research Geologist (2000 - 2007)
- U.S. Geological Survey – Mineral Resources Program, Crustal Imaging and Characterization Team: Student (1996 - 2000)
- Colorado School of Mines, M.S. Geological Engineering (2000)
- Northern Arizona University, B.S. Geology (1996)
- Department of Interior's Superior Service Award (2016): For the modernization of the USGS Hawaiian Volcano Observatory’s instrumentation system. Designed and implemented a fully-digital geophysical and geochemical instrumentation network with associated data flows, and reporting systems. In part, overseeing the expenditure of $3.5 million from the American Recovery and Reinvestment Act (ARRA). The system now operates as a single instrument network, spanning over 1,000 square kilometers on the Island of Hawai`i, consisting of multiple ringed topologies that can self-heal after failures due to hardware or natural disaster.