Mechanical EngineerJyanes@vglabs.com

  • Accident Reconstruction
  • Computer Animation, Simulation and Modeling
  • Crash Data Retrieval
  • Vehicle Systems Analysis
  • Fork Lift, Boom Lift, Scissor Lift Accident Analysis
  • Fire Analysis
Bachelor of Science in Mechanical Engineering
University of California, Riverside (2002)

Leica Total Station Measurements (2004)

Iwitness Photogrammetry Measurements (2004)

PC-Crash Software Version Upgrades (versions 5 to 9) (2004-2012)

5th Wheel Testing Equipment, crash tests (2005)

Forensic Mapping Systems (2012)

Nikon Total Station Measurements (2012)

Photomodeler Photogrammetry Measurements (2012)

Faro 3D Scanner (2013)

X-Ray Fluorescence Analyzer (2013)

Keyence Digital Microscope (2013)

NFPA 921 Fire and Explosion Investigations (2014)

NFPA 1033 Professional Qualifications for Fire Investigators (2015)


Engineer in Training Certification, California

California Conference of Arson Investigators


Counterbalance Fork Lift Operator Certification (2017)

Rough Terrain Fork Lift Operator Certification (2017)

Aerial Boom Lift Operator Certification (2017)

Scissor Lift Operator Certification (2017)

PC-Crash Training Certification (2007)

Advanced PC-Crash Training Certification (2008)

Crash Data Retrieval Download Certification (2008)

Forensic Mapping System for Crime Scenes Certification (2011)


Staff Engineer, Vollmer-Gray Engineering Laboratories, Inc. (July 2012 to Present), Accident reconstruction, vehicle systems analysis, crash data retrieval, crash testing, vehicle testing, 3D vehicle and scene modeling, computer simulation and animation.

Project Engineer, MEA Forensic Engineers & Scientists (Sept 2004 to March 2012), accident reconstruction, AutoCAD drafting and design, 3D modeling using hand measurements, Iwitness photogrammetry and Leica Total Station, inspected vehicles involved in subject collision, inspected all trains for Metrolink cases, CDR crash data recorder “black box” data retrieval, surveyed locations with Leica Total Station (head operator), project manager for conducting crash tests, advanced user of PC-Crash simulation software, prepared summary reports for accident reconstruction cases that were presented in expert deposition and trial.

Process Engineer, Plasma Technology (May 2004 to Sept 2004), convert paper drawings to CAD, commission plasma coating jobs for total process period.

Mechanical Engineer, Carter Cryogenic Services (March 2003 to Dec 2003), cryogenic pump design, hands on assembly & installation of single & large multi-stage submersible cryogenic pumps, project management for complete capacity pump-out project including new parts design, manage technician crews at chemical plants and ship yards (domestic and international), provide technical assistance for repairs through CAD interpretation, design modification, and direct communication with the fabrication team.

Technical Writer, County of Riverside – IT Dept (June 2002 to March 2003), document police vehicle equipment installation and IT installations using CAD diagrams, convert paper drawings to CAD.


Annual Crash Testing of Various Impact Types, MEA Forensic, Laguna Hills Office (2004 to 2012)

Offset Crash Testing for Area Method Validation and SAE Paper, MEA Forensic, Vancouver, BC (2008)

Accident Reconstruction Summit, MEA Forensic Engineers & Scientists, 2008 – 2011(presented on photogrammetry in 2009)


IPTM Motorcycle Crash Investigation (2005)

SolidWorks Solid Modeling (2006)

California Conference of Arson Investigators – Advanced Fire and Arson Investigation (November 2014)

California Conference of Arson Investigators – NFPA 1033 (April 2015)