John Callahan Email and Phone Number
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* Senior management experience in various supply chain and operations roles from start-ups to large-scale companies* Extensive international sourcing and contract negotiation experience * Proven ability to win customers and increase margins through supply chain strategies and solutions* Deliver process and performance improvement across internal and external operations* Successfully led ERP system implementation & upgrades* Successfully Managed multi regional organizations and cross functional teamsSpecialties: * Strategic Supply Chain Design* Global sourcing and logistics* Supplier relationship management* Commercial agreement design and contract negotiations* Cost and cost reduction management* Contract manufacturing / ODM / OEM* Organizational development and employee relationship management* Data Analytics
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Sr. Director Procurement- Hdd Pcba, Platform And Consumer Solutions Cm And Odm ManagementWestern DigitalOceanside, Ca, Us -
Sr. Director Procurement- Hdd Pcba, Platform And Consumer Solutions Cm/Odm ManagementWestern Digital Nov 2022 - PresentSan Jose, Ca, Us
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Director, Global Supply Chain - System OperationsFacebook Jan 2020 - Sep 2021Led operations teams in execution of new product introduction & development programs, as well as, supply planning, procurement and ODM/OEM partner performance management and execution to data centers and Facebook PoP (Point of Presence) locations throughout the world. -
Director, Sourcing Odm/Oem & IntegrationFacebook May 2012 - Jan 2020Managed a team of Sourcing Managers, NPI Materials Program Managers, Materials Planning Managers and Business Systems and Process Managers responsible for all activities related to global strategy, supply chain design, contract negotiation and supplier relationship management. In addition, built and led early-stage strategic technology sourcing teams responsible for CPU, HDD, Memory, Power and Mechanical commodities.
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Director Strategic Sourcing & OperationsGreenvolts Dec 2009 - May 2012Joined a solar system equipment company prior to first alpha systems being built and shipped under the new leadership team with less than 60 people employed at the time. Responsibilities include supply chain design, supplier selection & qualification, contract negotiations, managing supplier build plan and ship schedules, logistics, cost management, and product ramp readiness and release in a full turn-key outsourced model. Major accomplishments include qualified tier 1 supply chain for manufacturing and distribution of product, led team efforts for successful production release and ramp readiness, implemented Oracle ERP system, and built a strategic sourcing organization.
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Vice President Sourcing & ProcurementJdsu 2008 - Oct 2009Responsible for building a strategic sourcing organization and strategy for JDSU’s Communications & Commercial Optical Products business segment (CCOP). Directing activities associated with global supply chain design, strategic direction for all commodities, contract negotiation and New Product Introduction for over $100m in annual external material spend. Other activities included leading the RFP activity and contract negotiations for the sale of JDSU’s Shenzhen factory assets and contract manufacturing services agreement. -
Sr. Director Supply Chain OperationsRadisys Corporation 2003 - 2008Hillsboro, Oregon, UsResponsible for directing activities associated with global supply chain design, strategic direction for all commodities, contract negotiation and supplier relationship management. Additional functional responsibilities include; global procurement, logistics, shipping and receiving, and stockroom. I supported 4 engineering design centers and manufacturing locations around the world (US, Mexico, Europe and China).
John Callahan Education Details
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Columbia Southern UniversityBusiness Administration -
Notre Dame De Namur University
Frequently Asked Questions about John Callahan
What company does John Callahan work for?
John Callahan works for Western Digital
What is John Callahan's role at the current company?
John Callahan's current role is Sr. Director Procurement- HDD PCBA, Platform and Consumer Solutions CM and ODM Management.
What is John Callahan's email address?
John Callahan's email address is jcallahan@fb.com
What is John Callahan's direct phone number?
John Callahan's direct phone number is (650) 543*****
What schools did John Callahan attend?
John Callahan attended Columbia Southern University, Notre Dame De Namur University.
Who are John Callahan's colleagues?
John Callahan's colleagues are Nat Skywalker, Yogesh Mane, Ilia Averbuch, Joed Quinry Llamo, Akhil Jain, Raghavendra M., Manjunatha S.
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