Sheila Saiidnia
CEO, President, P.E.
Sheila Saiidnia is the founder and CEO of A & S Engineers. She has over 25 years of experience in HVAC specialty applications, such as central plant cooling and heating, active smoke control systems, custom air handling systems as well as hydronic heating/ cooling system designs in addition to plumbing systems.
Sheila is a Registered Mechanical Engineer in the State of California and the State of Washington.
Allen Arbabaraghi
Vice President, LEED AP, CXA
Allen Arbabaraghi has over 25 years of experience in the engineering and building construction industry. He is an expert in design, commissioning, construction administration, strategic planning, management budgeting and organizational development. He is influential in the areas of layout, mechanical HVAC, energy modeling and LEED compliance.
Robin P. Roderick
Senior Electrical Engineer
Forty years of experience in electrical engineering design for educational, governmental, healthcare, microchip fabrication facilities and office buildings encompassing a broad range of electrical power distribution, security, fire alarm, data and telecommunication designs.
Robin is a Registered Engineer in the State of California
Vahan Khalatyan
Senior Electrical Project Manager
Experience in implementing and optimizing electrical systems. Skilled in design of power systems, power transmission and distribution, protection systems and the integration of renewable energy to enhance grid stability. Proven track record of successfully leading cross-functional teams to achieve project goals within budget and timeline constraints.
Satya Edupuganti
Electrical Engineer
Electrical Design Engineer with 4+ years of experience in the design, analysis, and documentation of LV/MV electrical systems for Industrial, commercial, residential and dewater treatment plants.
Expertise in load estimation, feeder and cable sizing, voltage drop
and short-circuit analysis, and the preparation of single-line diagrams, panel schedules, and coordinated construction drawings.
Proficient in AutoCAD Electrical, Revit to deliver accurate electrical designs, perform system studies, and ensure compliance with NEC, CEC, Building and energy codes, IEC, and NFPA 70/70E/72 standards.
Zakariyya Mohammad
Mechanical Engineer
Result-driven Mechanical HVAC Design Engineer with a Master’s degree in Engineering Management and comprehensive hands-on experience engineering high-fidelity 3D BIM models, mechanical schematics, and complete MEP layouts for diverse commercial and residential facilities.
Specialized in thermodynamic load calculations, airside ductwork distribution, hydronic piping networks, and advanced cross-disciplinary clash detection.
Proven track record of optimizing engineering workflows. Well versed in Codes & Compliance.
Ahmad Dandan
CAD/Revit Designer
Expert knowledge in AutoCAD Fundamentals and 3D modeling including Revit. Skilled in building and construction.
