Employing Qualified and Experienced Professionals.

Troy Christensen’s 27 years of expertise spans all aspects of sustainability, product stewardship, environmental, health and safety, engineering, operations, management system evaluation and implementation. He has worked for the semiconductor, solar, LED, petrochemical, chemical, manufacturing, biotechnology, transportation, power production, retail, office/consumer products and food and beverage industries, as well as universities and government agencies. He has extensive experience in the application of EHS programs and procedures, including hazardous waste management, laser safety, wastewater, solid waste, and air quality regulatory compliance, and strategic planning. Troy has a Bachelor's of Civil Engineering with emphasis on environmental engineering from the University of Minnesota and is also certified as a Six Sigma Green Belt.

Susan Caust is a focused documents administrator whose technical writing and editing expertise as well as meticulous attention to detail, takes Otis Institute projects from initial planning through delivery and post-production reporting. With Otis since 2008, she maintains responsibility for the accuracy and timely delivery of documentation, and ensures projects reflect appropriate Otis and Client standards and information. A native New Yorker, Susan has a Master of Science in Education from Queens College, as well as additional coursework toward an MBA. In her spare time, she likes to relax with her dog Oney, and the Harvard Business Review (or People Magazine).

David Ufferfilge has performed industrial hygiene for 5 years and has managed health and safety programs at a cancer research center and the DOE National Renewable Energy Laboratory (NREL) for total of 5 years. At NREL, he served as the Radiation Safety Officer and the respiratory protection, hearing conservation, and non-ionizing radiation program manager. All the programs that David managed have had significant strides in effectiveness, efficiency, intuitiveness, and customer satisfaction. He earned a B.S. in Environmental Health in 1994 and a MS in Toxicology from Colorado State University in 1999. His thesis work studied molecular mechanisms of inflammation due to inhaled agricultural dusts. David’s strength areas are respiratory protection, radiation, non-ionizing radiation, industrial hygiene, laboratory safety, and toxicology. He joined the Otis Institute team part time as of May 2012.

Emilie Cherre has over six years experience helping companies to reduce energy use, better protect the environment, improve workers conditions and make sure companies are compliant with EH&S legislation. Emilie has a Master specialization in Environment, Sustainable development and Ecological chemistry from Royal Institute of Technology, Stockholm, Sweden. Emilie also has a Master of Science in Chemistry from Engineering School of Chemistry, Lyon, France. Emilie's strength areas are compliance audits for waste management, regulatory watch and energy efficiency. Emilie joined Otis Institute in May of 2014 to continue in the field she is passionate about.

Varsha Malli is an Industrial Hygienist with a Master’s degree in Occupational and Environmental Hygiene from Johns Hopkins University. Her past experiences have been in the field of worker health and safety. Varsha has worked with a leading Biopharmaceutical company in India, where she created a model to minimize worker exposure to chemicals and pharmaceutical dust encountered during the Active Pharmaceutical Ingredient (API) manufacturing process. She has also worked with the City and County of San Francisco at two of their healthcare facilities and evaluated exposure of Healthcare workers to chemotherapeutic drugs.

Varsha also holds a second Master’s degree in Human Resource Management, and a Baccalaureate in Engineering in Biotechnology from Visvesvaraya Technological University, India. Her strengths are Industrial Hygiene, respiratory protection, ergonomics, and air quality compliance.

Before joining Otis Institute in June 2016, Tania Tinoco worked for more than twelve years in several municipal and state administrations of Cuernavaca, Mexico. She has five years’ legal experience in the regulation of environmental protection. Tania ensured corporate compliance both by leading environmental inspections relevant to noise, solid waste/air emission pollution, vegetation, etc., and by enforcing legal procedure against environmental offenders. She is now applying her experience, rigor, and perseverance collaborating with Bay Area companies seeking to comply with and/or exceed regional, state, and national environmental, health, and safety regulations. Tania has a bachelor’s degree (Licenciatura) in Law and Social Sciences from the Autonomous University of the State of Morelos, Mexico.