Contact Us

​Department Contact List

    Amy Sardella
    Financial and Administrative Services Manager
    (408) 491-7419
    [email protected]
    Responsible for the Fiscal and Administration Division that provides Human Resources, Fiscal, Facilities and Operational Support to all Procurement divisions. In addition, manages the Administration team responsible for California Public Records Act (CPRA) requests, Countywide P-Card use and training compliance, Records Retention & Timekeeping.

    Cheska Padilla
    Administrative Assistant
    (408) 491-7403
    [email protected]
    Administrative and Facility Support.

    Chris Collins
    Administrative Services Manager
    (408) 491-7416
    [email protected]
    Responsible for department's annual budget and the department's fiscal responsibilities, facility functions, department's fleet and the County's Property Disposal Warehouse.

    Chris Oliverio
    Materials Supply Specialist​
    (408) 918-1934
    [email protected]
    Property disposal/warehouse inventory management.

    Deborah Hinton
    Senior Management Analyst
    (669) 220-4436
    [email protected]
    Maintains and coordinates the required activities related participation in the Emergency Operations Center (EOC). Maintains a current vendor list for use during trainings or activation. Works with lead agencies to prepare analysis and reports for disaster cost recovery and coordinates department wide required emergency response training.

    Hema Thanapathy
    Program Manager II
    (408) 491-7436  
    [email protected]
    Responsible for the management of the Countywide Procurement Card (P-Card) program for County employees to make small-dollar purchases and also manages the insurance compliance of County contracted vendors, working in conjunction with County’s Risk Management Department to manage the verification of insurance compliance with county policy.

    Jeanne Bailon
    Administrative Assistant
    (408) 491-7453
    [email protected]
    Administrative Support, CPRA Requests and vendor insurance compliance.

    Kassie Hernandez
    Executive Assistant II
    (408) 491-7422
    [email protected]
    Administrative support to Director of Procurement and Deputy Director of Procurement.

    Maria Cecilia De Asis
    Accountant II
    (408) 491-7469
    [email protected]
    Responsible for accounts payable and receivable.

    Patrick Tisdale
    Program Manager II
    (408) 491-7413
    [email protected]
    Manages the department's human resources functions.

    Sierra Jefferson
    [email protected]
    (408) 491-7478
    Supports the department's human resources activities.

    The Facilities, Office and Institutions Operations (FOIO) contracting unit manages procurement and contracting activities to support the requirements of various agencies and departments, primarily Facilities and Fleet, Health System, Office of the Sheriff, Corrections, Probation, Roads and Airports, and Parks and Recreation, County Executive Office and County Procurement.

    FOIO supports the purchase, rental and or lease of various products, and services relating to  facility and building operations  (maintenance, repairs and operations (MRO) products and services, janitorial services, furnish and install of furniture and modular units etc.), office operations (multi-function copiers, office equipment, accessories and supplies, car rental and auto parts, fuel and renewable energy etc.), and institutions operations (background checking services, crime scene clean-ups, ammunition, badges, uniforms, linens, food and food services, animal control and pest management, construction materials, monitoring and surveillance hardware, etc.).

    Caroline Kho
    Strategic Sourcing Manager
    (408) 491-7428
    [email protected]
    Leadership and oversight, organizational development and advisory services to FOIO Contracting Unit.

    Teresa Cox
    Senior Strategic Sourcing Officer
    (408) 491-7493
    [email protected]
    Management of FOIO Contracting Unit daily operations.

    Brittani Leslie
    Buyer II
    (408) 964-7362​
    [email protected]
    Client Relations for Finance, Government, Operations Committee (FGOC) departments; Back-up for P-Card Administration.

    Bryant Lee
    Buyer I
    (408) 491-7451
    [email protected]
    Client Relations for Finance, Government, Operations Committee (FGOC) departments.

    Chaz Miyamoto
    Buyer III
    (408) 491-7468
    [email protected]
    Client Relations for Housing, Land Use, Environment and Transportation Committee  (HLUET) departments.​

    David Noriega
    Strategic Sourcing Officer
    (408) 491-7427
    [email protected]
    Lead for FOIO Programs and Initiatives, Organizational Development and Governance.

    Jayson Mampusti
    Buyer III
    (408) 491-7407
    [email protected]
    Client Relations for Housing, Land Use, Environment and Transportation (HLUET) departments.

    JC Aguila
    Buyer II
    (408) 491-7456
    [email protected]
    Client Relations for Public Safety and Justice (PSJ) Committee departments.

    Jonathan Cholula
    Procurement Contracts Specialist
    (408) 491-7462
    [email protected]            
    Client Relations Lead for Health System (HS), and Children, Seniors and     Families CSF)             Committees departments.

    Judy Hou
    Procurement Contracts Specialist
    (408) 491-7438
    [email protected]
    Lead for FOIO Measures and Statistics; Client Relations Lead for Finance and Government Operations Committee (FGOC) departments; Back-up for P-Card Administration.

    Julius Yang
    Buyer I
    (408) 491-7470
    [email protected]
    Client Relations for Health System (HS), and Children, Seniors and Families (CSF) Committees departments.

    Justin Singleton
    Buyer III
    (408) 491-7466
    [email protected]
    Client Relations for Public Safety and Justice (PSJ) Committee departments.

    Lisa Plascencia
    Buyer II
    (408) 491-7439

    [email protected]
    Client Relations for Health and Hospital System (HHS), and Children, Seniors and Families (CSF) Committees departments.

    Miles Zimmer
    Buyer I
    (408) 491-7492
    [email protected]
    Responsibilities: FOIO Operations Support Squad

    Oscar Inzunza
    Procurement Contracts Specialist
    (408) 491-7498
    [email protected]
    Client Relations Lead for Public Safety and Justice (PSJ), Health and Hospital System (HHS), and Children, Seniors and Families (CSF) Committees' departments.

    Samuel Hirsch
    Buyer III
    (408) 491-7485
    [email protected]
    Client Relations for Finance, Government, Operations Committee (FGOC) departments – Facilities & Fleet (FAF) and FGOC Building Operations.

    Zachary Yu
    Buyer III
    (408) 491-7450
    [email protected]
    Client Relations for Finance, Government, Operations Committee (FGOC) departments non Facilities & Fleet (FAF), FGOC non-Building Operations.

    The unit provides  Contracting Operations Support to the Procurement Department in the form of specific solicitations and contracting assignments, and special projects relating to the department’s operations such as preparation and review of Board legislative files, the Award of Excellence in Procurement application, business mapping of orders workflow and approval for Health System etc. In addition, this Unit administers the County minor public works projects (County facility improvements under $200,000). [email protected]

    Renda James
    Strategic Sourcing Manager
    (408) 491-7406
    [email protected]
    Responsible for providing direction and guidance for Procurement Department's COSMOS team.

    Dan Duong
    Buyer II
    (408) 491-7405
    [email protected]
    Responsible for acquisitions, contracting and other projects for Procurement Department's COSMOS team.

    Fenny Hou
    Procurement Contracts Specialist
    (408) 491-7435
    [email protected]ov.org
    Responsible for acquisitions, contracting and other projects for Procurement Department's COSMOS team.

    Jonathan Roisman
    Management Analyst
    (408) 491-7473
    [email protected]
    Agenda Coordinator; project support for division.

    Rocio Reyes
    Senior Management Analyst

    (408) 918-1924
    [email protected]
    Minor Public Works Program

    The Medical/Patient Care contracting division supports the County of Santa Clara Health System (CSCHS) County-operated hospitals (Santa Clara Valley Medical Center, O’Connor Hospital, and Saint Louise Regional Hospital) for their needs for medical products and services including, but not limited to, medical surgical supplies, pharmaceuticals, laboratory supplies, medical equipment, consumables, and related services.

    This team supports various CSCHS departments including, but not limited to, Resource Management, Perioperative Department, Diagnostic Imaging, Clinical Laboratory, Pharmacy, Ambulatory Care, Cardiology, etc. The team also supports other County departments and agencies such as Public Health, District Attorney Crime Laboratory, Coroner/Medical Examiner’s Office, and Information Service Department.

    Long Zhang
    Strategic Sourcing Manager
    W: (408) 491-7425   C:  (408) 313-9768
    [email protected]
    Overall Management of Medical Patient Care Contracting Unit.

    Alex Qin
    Buyer II
    (408) 491-7491
    Alex.Qin@prc.sccgov.org
    Ambulatory care, Coroner's Office, and Behavioral Health.

    Ha “Ruby” Cervantes
    Buyer I

    (408) 918-7033
    [email protected]
    Client Relations for OR, Cardiovascular, Respiratory, SPD,
    and Resource Management.

    Irene Shen
    Sr. Strategic Sourcing Officer
    (408) 491-7412
    [email protected]
    Lead for Medical Patient Care Contracting Unit Daily Operations and Special Projects​.

    Jinhua (Rachel) Su
    Procurement Contracts Specialist
    (408) 491-7444
    [email protected]
    Clinical Lab and Crime Lab.

    Judy Tang
    Procurement Manager
    (408) 491-7481
    [email protected]
    Client Relations for OR, Cardiovascular, Respiratory, SPD, and Resource Management.

    Kristie Gonzales
    Buyer III
    (408) 491-7411
    [email protected]
    Diagnostic Imaging, Dentistry, Animal Shelter, VHP, Medical Library, and Ambulatory Care.

    Mike Pfister
    Strategic Sourcing Officer
    (408) 491-7423
    [email protected]
    Diagnostic Imaging, Medical IT projects and Special Projects.

    Quan Tu
    Buyer I
    (408) 491-7424
    [email protected]
    Pharmacy.

    Scott Twist
    Buyer III
    (408) 491-7474
    [email protected]
    OR, Cardiovascular, Respiratory, SPD, and Resource Management.

    Sujata Rao
    Procurement Contracts Specialist
    (408) 491-7486
    [email protected]
    Ambulatory care, Public Health Lab, Renal Care, and Dentistry.

    Vasilis Berberis
    Buyer III
    (408) 491-7491
    [email protected]
    Clinical Lab and Crime Lab.

    Yimin Tseng
    Procurement Contracts Specialist
    (408) 491-7426
    Yimin.Tseng@prc.sccgov.org
    Pharmacy.

    Vivian Wu 
    Procurement Contract Specialist
    (408) 491-7430
    [email protected]
    Client Relations for OR, Cardiovascular, Respiratory, SPD, and Resource Management

    The Technology Solutions division manages the County’s technology and telecommunication procurement and contracting activities, including, but not limited to, Technology hardware, software, storage, and network solutions and related services for each; telecom and security; Technology related implementation, and consulting services.

    Scott Zimmer
    Strategic Sourcing Manager
    (408) 491-7455
    [email protected].sccgov.org
    Responsible for technology solutions and services acquisitions; provides direction, guidance and support for IT Contracting Unit of infrastructure/operational procurement and strategic sourcing teams.

    Albert Dy
    Strategic Sourcing Officer
    (408) 491-7497
    [email protected]
    Strategic IT Sourcing, Procurement, Contracting and Vendor Management.

    Anu Ethiraj
    Strategic Sourcing Officer
    (408) 491-7431
    [email protected]
    Strategic IT Sourcing, Procurement, Contracting and Vendor Management.  Point of Contact for departments in County Finance and Government Operations Committee for all IT application software projects; Administers IT enterprise software contracts.​       

    Chris Eglesia
    Buyer II​I
    (408) 491-7489
    [email protected]
    Responsible for Telecommunications and Security Products and Services; Point of Contact for departments in Public safety and Justice and Housing, Land Use and Transportation Committees for IT application software projects.

    Daniel Martinez
    Buyer II
    (408) 491-7446
    [email protected]
    Responsible for Telecommunications and Security Products and Services; Point of Contact for departments in Public safety and Justice and Housing, Land Use and Transportation Committees for IT application software projects.

    David Strausser
    Strategic Sourcing Officer
    (408) 491-7447
    [email protected]
    Responsible for Systems, Hardware and Network Products and Services; Responsible for Telecommunications and Security Products and Services; Point of Contact for departments in all Committees other than Finance and Government and Operations Committee.

    David Yee
    Procurement Contracts Specialist
    (408) 491-7476
    [email protected]
    Point of Contact for departments in County Health System for all IT application software projects;  Administers IT Medical software contracts.

    Erica Criley
    Buyer I
    (408) 491-7434
    [email protected]

    Assist the department with Amendments, updates to contracts, market research and supporting the department with administrative activities as requested

    Henry Tran
    Buyer I
    (408) 491-7465
    Henry.Tran@prc.sccgov.org
    Assist the department with Amendments, updates to contracts, market research and supporting the department with administrative activities as requested.

    Reynaldo Aralar
    Procurement Manager
    (408) 491-7402
    [email protected]
    OR, Cardiovascular, Respiratory, SPD, and Resource Management.​

    Sabrina Teixeira
    Procurement Contracts Specialist
    (408) 491-7467
    [email protected]
    Responsible for Systems, Hardware and Network Products and Services; Point of Contact for departments in County Health System and Children/Seniors/Families Committees for IT application software projects.

    Shah Sadri
    Strategic Sourcing Officer
    (408) 491-7479
    [email protected]
    Strategic IT Sourcing, Procurement, Contracting and Vendor Management.

    The Decentralized contracting division supports County agencies/departments in their procurement of professional services. Support and assistance include but are not limited to reviewing solicitation documents prior to release, reviewing justifications for non-competitive acquisitions, negotiations support, reviewing and approving service agreements, and responding to questions regarding procurement processes and application of Board of Supervisors policies.

    Chanthavy Sivongxay
    Senior Strategic Sourcing Officer
    (408) 491-7472
    [email protected]
    Decentralized Contracting for Professional Services. Voluntary Vendor Cost Reduction Program initiative.​

    Ben Reyes
    Procurement Contracts Specialist
    (408) 491-7420
    [email protected]
    Decentralized Contracting for Professional Services.

    Jaslin Yu 

    Program Manager II
    (408) 491-7484
    [email protected]
    Decentralized Contracting for Professional Services.

    Michael Pangilinan
    Procurement Contracts Specialist
    (408) 491-7437
    [email protected]
    Decentralized Contracting for Professional Services.

    Nana Krishna Kumar
    Buyer I
    (408) 491-7475
    [email protected]
    Decentralized Contracting for Professional Services – Admin Support.​

    Sagar Dholakia
    Procurement Contracts Specialist
    (408) 491-7469
    [email protected]

    Susie Velez
    Procurement Contracts Specialist
    (408) 491-7410
    [email protected]
    Decentralized Contracting for Professional Services​.​

    eProcurement Team manages, maintains and supports enterprise systems for procurement and contracting for the County of Santa Clara. This team is also responsible for providing technical assistance and on-going support to vendors as well as the County staff.

    Mitali Shah
    IT Manager
    (408) 491-7449
    [email protected]
    Responsible for providing management oversight of the Enterprise Procurement Applications development & support that includes technical support to Ariba, SAP, Periscope, DocuSign and SharePoint users, system configuration, and enhancements.

    Casandra Gonzalez
    Business Systems Analyst
    (408) 491-7461
    [email protected]
    Responsible for coordinating activities/efforts for Ariba Project.  Also, provide technical support on Periscope, DocuSign, Materials Management and Inventory Management.

    Layma Aman
    Associate IT Business Analyst
    (408) 326-1141
    [email protected]
    Responsible for vendor onboarding and enablement in Ariba.

    Linh Vu
    Sr. Business System Analyst
    (408) 491-7454
    [email protected]
    Primary - Provide enterprise application management support for Ariba Procure-to-Pay (P2P) module. Backup - Provide user administration support for P2P module.

    Maria Melgoza
    Sr. Business Systems Analyst
    (408) 491-7417
    [email protected]
    Primary - Provide enterprise application management support for Ariba Supplier Information Management (SIM), Sourcing & Contracts modules.
    Backup
    1 - Provide enterprise application management support for Ariba Supplier Performance Management (SPM), P2P and Spend Viz modules.
    2 - Provide user administration support for Periscope, DocuSign & Ariba Upstream modules. 

    Meena Kumari Subramaniam
    Business Systems Analyst 
    (408) 491-7459
    [email protected]
    Provide enterprise application management support for SAP-MM.

    Mike Nguyen
    Procurement Contracts Specialist
    (408) 491-7458
    [email protected]
    Measures of Success, Data Support and Analytics.

    Nimisha Amin
    Senior Application Administrator
    (408) 491-7415
    [email protected]
    Responsible for vendor enablements in Ariba.

    Norma Zapien
    Application Administrator
    (408) 491-7487
    [email protected]
    Provide enterprise application management support for catalogs.

    Ramesh Amin
    Systems Administrator
    (408) 491-7408
    [email protected]
    Provide technical support for SAP-Ariba Cloud base web application ,BidSync, SharePoint, Procurement staff's  Desktop/Laptop, MS Office, MS Excel, MS Access ,Office 365,  Adobe , InfoPath forms.  Administrator County  SAP Data Service systems in ISD Data Center.​

    Sean Roberts
    Business Process Consultant
    (408) 491-7421
    [email protected]
    Drive transformational process improvement project execution and implementation.

    Shahabuddin Kadri
    User Experience (UX) Designer
    (408) 491-7448
    [email protected]
    Responsible for technical assistance(configuration, development, maintenance) of web portals.

    Gene Clark
    Chief Procurement Officer
    (408) 299-5121
    [email protected]
    Executive Leader.

    Elaine Farinas
    Management Analyst
    (408) 326-1135
    [email protected]

    Gracie Sanchez
    Senior Executive Assistant
    [email protected]
    (408) 422-0382
    Administrative Support.

    Katherine Wasserlauf
    Procurement Manager
    (408) 678-3217
    [email protected]​​

    Leticia Gordon
    County Contracting Policy Analyst
    (408) 678-3221
    [email protected]
    Countywide Contracting.        

    MJ Fogelstrom
    Countywide Contracting Policy Analyst
    (408) 678-3216
    [email protected]
    Countywide Contracting.

    Tiffani Lopez
    Associate Management Analyst
    (408) 678-2316
    [email protected]

    Wendy Fong
    County Contracting Policy Analyst
    (408) 678-3218
    [email protected]
    Countywide Contracting​.

    Contact Us

    Procurement Department
    150 W Tasman Drive
    San Jose, CA 95134
    Phone: (408) 491-7400
    Fax: (408) 491-7496
    Business Hours: Monday -
    Friday 8:00 AM - 5:00 PM

    Map of 150 West Tasman Drive, San Jose, CA 95134
    Mode of transportation
    150 West Tasman Drive, San Jose, CA 95134

    ©2022 County of Santa Clara. All rights reserved.