Senior Staff

Pradeep J. Perera, PE


Mr. Perera is a Professional Engineer in Maryland and Virginia with over 21 years of professional experience. He holds a Master's degree in Civil Engineering from West Virginia University and a Bachelor's degree in Civil Engineering from the University of Nottingham. His technical expertise is primarily in Transportation (especially Pavements), Geotechnical Engineering, and Horizontal Construction.

Andy McAllister

Vice President

Mr. McAllister is an Environmental Scientist, with over 10 years technical and management experience related to environmental sustainability, environmental health and safety and environmental compliance. He holds a Bachelor’s degree in Natural Science. He also is certified in EPA AHERA, HAZWOPER 40 - Hazardous Materials Generation, Radiation Safety Officer, NICET Materials Testing (Asphalt, Soils, Concrete), MDE Apprentice Well Driller, and National Drilling Association Subsurface Investigation Qualification. He currently manages operations at Soil and Land Use Technology, Inc. as the Vice President.

David M. Heisler, Ph.D.

Director of Quality

Dr. Heisler has over 40 years of experience managing programs supporting the Federal Government in Environmental Science, Industrial Hygiene, Information Technology, Chemical Warfare Defense, Military Survivability and Operability, Quality Assurance, and Archaeology. Since joining SaLUT in 1997, he has managed the company's International Industrial Hygiene, Environmental Engineering, and Quality Assurance programs.

Channa Bambaradeniya, Ph.D., CIH, CSP, CHMM, PMP, PWS, LEED GA

Certified Industrial Hygienist

Dr. Bambaradeniya is an Ecologist by training, with over 20 years of technical and management experience related to the environmental sector. He has served as an International Environmental Specialist and/or Team Leader for a wide range of international agencies. In the United States, he has managed long-term environmental Health, and Safety projects for clients such as the National Institute of Standards and Technology (NIST) and the National Institutes of Health (NIH). He has written over 50 peer-reviewed publications and presented research presentations to over 20 international conferences.

Chaminda Indika Jayatilake, PE, CIH, CHMM

Environmental Engineer

Mr. Jayatilake is an Environmental Engineer with over ten years of technical and management experience related to Waste Water Management and Environmental Health and Safety experience in various aspects of Industrial Hygiene and Environmental Management for agencies such as the DC Department of General Services (DGS), NAVFAC, National Institutes of Health (NIH) and the General Services Administration (GSA).

Dilan Mack

Project Manager

Mr. Mack has five years of Environmental Engineering and Industrial Hygiene experience at SaLUT. Mr. Mack also oversees the Environmental Engineering and Industrial Hygiene programs for the DC Department of General Services (DGS) in Washington, DC and multiple general contractors in the DC, MD, and VA region. He works in collaboration with the Department of Energy and Environment (DOEE) and DGS to implement a robust Stormwater Management program for industrial facilities in the District of Columbia.

Azzam Jawad

Civil Engineer

Mr. Jawad has a Bachelor's degree in Civil Engineering and has been involved in Geotechnical Engineering, construction material testing, and inspection services since 2009. Mr. Jawad holds numerous certifications, including E.I.T. Certificate, WACEL (soil, foundation) Certificate, ACI Concrete Certified – Grade I and Concrete Strength Testing Technician Certificate, and Lead-Based Paint Inspector and Risk Assessor in inspector in Maryland, Virginia, and DC.