Our Team

Nikhil Choudhary, M.S. Struct.

Chief Executive Officer

Nikhil directs all business and engineering personnel for each of Zenith’s divisions. After he received his Master’s Degree in structural engineering from Michigan State University, he spent several years in general contracting and construction management, marrying engineering with in field construction. His experience makes him seasoned in domestic and international business management.

Senthil Puliyadi, M.S., M.Tech., P.E.

President & Chief Technical Officer

Senthil leads all engineering teams and quality control processes. With extensive structural engineering design experience as Engineer-of-Record on many heavy industrial and commercial construction projects ranging up $35+ million, he offers a library-esque knowledge base for our engineering teams. He has a Masters Degree in structural engineering from Missouri University of S&T and is a licensed engineer.

Yu (Vincent) Yan, M.S. Struct., P.E.

Partner, Estimating, and Operations

Vincent oversees all engineering projects, estimating, and operations. His role in estimating ensures he is always considering labor and material cost, and construction mean and methods during the engineering design ensuring everything is cost-effective. With a Master Degree in structural engineering from LA Tech, he is a licensed engineer who brings a unique experience to Zenith’s quality control, from start to finish.

Benjamin Walsh, Esq.

General Counsel

Ben is Zenith’s General Counsel. After earning his Juris Doctorate from UCLA School of Law, Ben began his legal career as corporate counsel assisting businesses navigate the complexities of the law. Ben has experience in all aspects of corporate law, including contract, employment, intellectual property and litigation. In his free time, Ben enjoys woodworking and traveling with his wife and daughter.

Ben Bronow

Estimating Manager

Ben manages cost estimating and helps clients navigate stages of projects for commercial accounts nationwide. His experience in fin-tech and con-tech startups provides a solid foundation for his role at Zenith, providing distinct insights into emerging technologies and markets. In his spare time, Ben enjoys travel and taking scenic motorcycle rides.

Jason Leon

Business Development Manager

Jason manages all business development for Zenith’s Southern California offices. His experience in customer service and project management is an asset to Zenith’s client relations, and partnership development. Before Zenith, Jason managed accounts for one of the largest construction product manufacturing companies in the world. In his spare time, he enjoys being with friends and family, and a good round of golf.

Remi Tan, A.I.A, LEED AP BD+C

Lead Architect

Remi is a highly creative licensed senior licensed architect and LEED AP sustainability consultant with 30+ years of experience in a broad range of domestic and international projects: multi-family, affordable, senior housing, office & custom residential. Remi’s experience as a planning commissioner and urban planning minor allows understanding how the projects fit into their local and regional surrounding. Remi enjoys hiking along the beach and hills at the coast, catching a new ballet performance in his free time.

Rick Van Diepen, A.I.A


Rick Van Diepen is a California licensed architect. Rick has a long career in architecture after graduating from UC Berkeley and he has had a lifelong passion for multifamily buildings, mixed-use buildings, affordable housing and historic preservation. Rick’s primary emphasis in architecture has been on integrated design and sustainability.

Hemal Modi, S.E.

Structural Team Lead

Hemal Modi is a California licensed Structural Engineer (SE) and brings over 17 years of experience in Structural Engineering, Construction, and Project Management of a wide variety of projects. Given the regions of his previous projects, seismic zone structures have been a key focus of his expertise. Hemal brings his experience in construction engineering and design activities including concept, schematics, design development, peer review, and value engineering in a wide range of sectors — including airports, casinos, commercial, healthcare, hotel, institutional, offices, and residential.

Yisilayin Silafu, M.S. Struct.

Senior Engineer

Yisilayin directs the residential division connecting the estimating team with the project engineers. He provides quality control for the final submittals and guides project engineers to create accurate and cost effective engineering solutions. Yisilayin graduated from UC San Diego with a Master’s Degree in Structural Engineering and has 5+ years of engineering experience in lightweight framing structures, including: wood and light gauge cold form steel.

Carl Curran

Senior Construction Manager

Carl is our senior construction project manager, with 30+ years in the Architectural and Construction Profession, with extensive experience and capabilities in all phases of the architectural process including Project Management and Construction Administration.

Eric Snider

Senior BIM Specialist

Eric career spans 26+ years in the construction industry working for design firms as well as contractors as a BIM Specialist. He has advanced 3D coordination capabilities using Revit and Navisworks; Certified in Revit Structure 2016, 2018 & 2019. Eric enjoy’s fishing, camping, traveling, woodworking and home improvement projects. He has two kids and a dog and lives in Castro Valley.

Irina Nelkin

Office Manager

Irina manages office operations and is responsible for a diverse set of administrative tasks. From payroll to on-boarding of new employees, she performs her duties with decisiveness and accuracy. In addition to overseeing personnel, Irina ensures the smooth functioning of the offices. She is a mother to a beautiful 11-year-old daughter, Katrina.

Ryan Tade, E.I.T


Ryan has almost 10 years of experience in the building industry. He has worked as an estimator for a Subcontractor and General Contractor, and as an intern for the City building department. He is also an Excel spreadsheet wizard.

Sudhanshu Kher, M.S. Struct.

Structural Project Engineer

Sudhanshu is a Structural Project Engineer for Zenith. He has a Bachelors Degree and a Masters Degree in Structural Engineering. With over a decade and a half of experience in the design industry, Sudhanshu is an expert in Seismic Anchorage designs, Shoring and Scaffold designs, Foundations design and Steel Structure design. In his free time, he is a professional piano player and is going to music school to pursue his hobby further.

Senthil Kumar, A.G.

Structural Project Engineer

Kumar has a bachelor’s degree in civil engineering and has been an integral part of Zenith for more than 5 years. Kumar is an expert in structural design and has worked on many of our commercial engineering projects including, roof and ground mount solar systems, carports, anchorage design for MEP lines and equipment. He is well versed in engineering software such as Matchcad, RAM Elements, and Enercalc.

Harsh Hotwani

Structural Project Engineer

Harsh being a curious engineer loves to analyze and design various kinds of structures. He has completed his masters in Structural Engineering. He has good hands on RAM Elements, MathCad and various other softwares. Apart from work, he loves to read books and plays badminton on weekends.

Nicole Liu

BIM Technician

Nicole has Master of Building Science degree from University of Southern California and Bachelor of Science degree from Purdue Univeristy. She is an expert in Computer Graphic Technology-building Information Modeling

Ritesh Bhingare

Lead Draftsman

Ritesh leads and guides the drafting department of Zenith. He has vast experience in a wide range of projects including: transportation, industrial plants, scaffold design, and residential wood construction, along with more than a decade of Infrastructure and Structural project drawing. Ritesh is a team player, always eager to learn something new, and loves a challenge. At the end of the day, Ritesh does what he can to ensure not only customer satisfaction, but team satisfaction as well.

Sajid Khan

Structural Draftsman

Sajid has 7 years of experience in structural and architectural projects. He is an drafting expert in residential, hotel, modular, and demolition projects. He is good in both Revit modeling and AutoCAD drafting.