Principle (P5) Global Sourcing Manager Sales And Marketing Technology
Current
Feb 2021 - Present
AeroLeads people directory · profile
John Callison Email & Phone Number
Principle (P5) Global Sourcing Manager Marketing and Sales Technology | Army Veteran | Workday Military and Veterans ERG Leader (Atlanta)
at
Workday
1 work email found
@workday.com
10 phones found area 669, 650, 210, 714, 949, and 847
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Principle (P5) Global Sourcing Manager Marketing and Sales Technology | Army Veteran | Workday Military and Veterans ERG Leader (Atlanta)
Location
Atlanta, Georgia, United States
Company size
Who is John Callison? Overview
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Quick answer
John Callison is listed as Principle (P5) Global Sourcing Manager Marketing and Sales Technology | Army Veteran | Workday Military and Veterans ERG Leader (Atlanta) at Workday, a company with 5 employees, based in Atlanta, Georgia, United States. AeroLeads shows a work email signal at workday.com, phone signal with area code 669, 650, 210, 714, 949, 847, and a matched LinkedIn profile for John Callison.
John Callison previously worked as Principle (P5) Global Sourcing Manager Sales and Marketing Technology at Workday and CEO and Founder at Over30Cosplay. John Callison holds Certificate Pmp, Project Management from Carnegie Mellon University.
Company email context
Email format at Workday
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{first}.{last}@workday.com
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AeroLeads found 1 current-domain work email signal for John Callison. Compare company email patterns before reaching out.
Profile bio
About John Callison
SENIOR MANAGER, PROCUREMENT & SOURCING - TECHNOLOGYBuying & Procurement / Supplier Management / Cost Control / Performance AnalysisAccomplished, results-oriented leader, adept in all aspects of the supply chain, including sourcing, vendor selection, contract administration, and program management. Maintain collaborative partnerships and negotiate effectively with vendors, suppliers, and partners, directing efforts to control costs, maximize profitability, and achieve challenging financial objectives. Analytical performer, highly skilled in issue identification, corrective action planning, and risk mitigation. Ensure regulatory compliance and foster adherence to proven best practices. Articulate communicator and consensus-builder; collaborate extensively with project leaders and suppliers.Specialties: CORE COMPETENCIES• Logistics & Supply Chain Expertise• Sourcing & Procurement Operations• Cost Analysis / Expense Reduction• Complex Contract Negotiations • Solicitation & Bidding Management• Demand Evaluation & Forecasting• Project Planning / Management• Team Building, Training & Mentoring
Listed skills include Strategy, Management, Strategic Sourcing, Vendor Management, and 35 others.
Current workplace
John Callison's current company
Company context helps verify the profile and gives searchers a useful next step.
Workday
16 roles
John Callison work experience
A career timeline built from the work history available for this profile.
Ceo And Founder
CurrentOver30Cosplay is a global advocacy group started in 2014 with 157 members. We now have over 67,000 members in 45 countries with a mission dedicated to promote, support, provide and encourage cosplayers over from 30 to 90 years old feel comfortable expressing themselves through costume and cosplay art forms. This is displayed routinely in convention, social.
Oct 2014 - Present
Advisory Board Member
CurrentQuarterly Advisor to Board on K9 Tactics and Training
May 2022 - Present
Jun 2020 - Jun 2022
Commissioner
City of San Jose Parks and Recreation Commissioner District 6 (Yes I am now in a sitcom) lol - No my day job didn't change this is a add on
Jan 2017 - Jun 2020
Senior Manager, Procurement & Sourcing - Technology
May 2018 - Jun 2019
Sourcing Manager
Lead negotiator for Corporate Network Hardware, Additionally Support Oculus and Facebook Video negotiations
Aug 2016 - Apr 2018
Principal
Supernova Spirits - Marz Vodka
Original CSO and Junior Principal of 3 No longer work with team but still a Principle (current)The Marz Vodka journey began several years ago from a tight-knit group of spirit enthusiast friends who loved making exquisite cocktails and experiencing super premium spirits. A group of enthusiasts born with these same dynamic minds and love of all things.
Mar 2015 - 2018
Brand Marketing
Feb 2015 - Dec 2016
Senior Manager, Global Strategic Sourcing For Technology (Data Centers)
Jun 2012 - Mar 2015
Netapp It Telecom And Networks Global Strategic Sourcing Manager
NETAPP (consultant), Sunnyvale, CaliforniaIT Global Sourcing & Supply (GSS) Manager, Telecom & Networks, 1/2011 to 12/2011Led GSS efforts within $3.9B infrastructure / server technology provider, managing IT commodity operations across vendor research, RFX development, contract negotiation, and supplier relationship management for networking and telephony..
Jan 2011 - Apr 2012
Senior It Commodity Manager (Telecom / Networks)
Directed strategic global sourcing and procurement, leading multiple concurrent efforts. Ensured contract alignment with program quality, delivery, responsiveness, and cost requirements. Managed vendor relationships with AT&T, Sprint, TATA, Cisco, and Intercall for voice/data circuits, local long distance telephony, and audio/video conferencing. Assessed.
Sep 2007 - Dec 2010
19D/97B/351B
USA, USAR, USNG19D - Armored Reconnaissance Specialist- Eyes and ears on the field, gather information about enemy positions, vehicles, weapons, and activity. Engage the enemy in the field, track and report their activity, and direct the employment of weapon systems to their locations. - Obtained and reported vital combat and battlefield information on the.
Jan 1988 - Jan 2008
Senior Operations Analyst & Telecom Engineer Iii
Played instrumental role in all voice-related initiatives and managed existing telecommunications infrastructures and contracts, supporting nationwide corporate staff. Led complex acquisition activities, including sourcing, negotiation, and delivery, serving the entire life of the contract. Liaised extensively among internal and third-party vendor.
Aug 2002 - Jun 2007
Technology Manager Telecom And End User Engineering -
Led telecommunications program, providing in-depth cost analysis for overall corporate communications. Processed and evaluated invoices, managed vendors, administered PBX, voice mail, and cellular systems, and programmed call routing. Purchased telephone devices.Routinely identified and secured service improvements and substantial cost-savings. Performed.
Feb 2001 - Mar 2002
Assistant Director Of Network And Telecom Services
Schwinn Bicycles / Gt Bicycles
MIS operations, Managing PC, Network, and Telecom groups across 11 locations and spearheading strategic MIS projects and initiatives. Administered networks and telecom systems, directing installation, configuration, and administration of data and voice networking hardware / software; administered Switchview IntelControl, OrderPro, RightOnQue, Nortel.
May 1998 - Feb 2001
Team & coworkers
Colleagues at Workday
Other employees you can reach at workday.com. View company contacts for 5 employees →
HG
Harry George
Colleague at Workday
San Diego, California, United States, United States
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SP
Sheldon Pfeifer
Colleague at Workday
Santa Barbara County, California, United States, United States
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JJ
Juan J. Echeverria
Colleague at Workday
San José Metropolitan Area, Costa Rica, Costa Rica
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DC
David Callen
Colleague at Workday
Oakland, California, United States, United States
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RM
Rob Meyers
Colleague at Workday
San Francisco, California, United States, United States
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AM
Aaron Maxson, Mba, Pmp
Colleague at Workday
San Francisco, California, United States, United States
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SK
Sara Kuzmik Elliott
Colleague at Workday
Greater Charlottesville Area, United States
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MM
Mark Melton
Colleague at Workday
United Kingdom, United Kingdom
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CM
Cian Mc Sweeney
Colleague at Workday
Dublin, County Dublin, Ireland, Ireland
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EB
Eric Bergquist
Colleague at Workday
Danville, California, United States, United States
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Harry George
Colleague at Workday
San Diego, California, United States, United States
View →
SP
Sheldon Pfeifer
Colleague at Workday
Santa Barbara County, California, United States, United States
View →
JJ
Juan J. Echeverria
Colleague at Workday
San José Metropolitan Area, Costa Rica, Costa Rica
View →
DC
David Callen
Colleague at Workday
Oakland, California, United States, United States
View →
RM
Rob Meyers
Colleague at Workday
San Francisco, California, United States, United States
View →
AM
Aaron Maxson, Mba, Pmp
Colleague at Workday
San Francisco, California, United States, United States
View →
SK
Sara Kuzmik Elliott
Colleague at Workday
Greater Charlottesville Area, United States
View →
MM
Mark Melton
Colleague at Workday
United Kingdom, United Kingdom
View →
CM
Cian Mc Sweeney
Colleague at Workday
Dublin, County Dublin, Ireland, Ireland
View →
EB
Eric Bergquist
Colleague at Workday
Danville, California, United States, United States
View →
3 education records
John Callison education
Certificate Pmp, Project Management
Carnegie Mellon University
Certificate, Business Continuity
Stanford University
Associate Of Arts, Administration Of Justice
Goldenwest College
FAQ
Frequently asked questions about John Callison
Quick answers generated from the profile data available on this page.
What company does John Callison work for?
John Callison works for Workday.
What is John Callison's role at Workday?
John Callison is listed as Principle (P5) Global Sourcing Manager Marketing and Sales Technology | Army Veteran | Workday Military and Veterans ERG Leader (Atlanta) at Workday.
What is John Callison's email address?
AeroLeads has found 1 work email signal at @workday.com for John Callison at Workday.
What is John Callison's phone number?
AeroLeads has found 10 phone signal(s) with area code 669, 650, 210, 714, 949, 847 for John Callison at Workday.
Where is John Callison based?
John Callison is based in Atlanta, Georgia, United States while working with Workday.
What companies has John Callison worked for?
John Callison has worked for Workday, Over30Cosplay, K9 Security K9 X-Factor, City Of San José, and Symantec.
Who are John Callison's colleagues at Workday?
John Callison's colleagues at Workday include Harry George, Sheldon Pfeifer, Juan J. Echeverria, David Callen, and Rob Meyers.
How can I contact John Callison?
You can use AeroLeads to view verified contact signals for John Callison at Workday, including work email, phone, and LinkedIn data when available.
What schools did John Callison attend?
John Callison holds Certificate Pmp, Project Management from Carnegie Mellon University.
What skills is John Callison known for?
John Callison is listed with skills including Strategy, Management, Strategic Sourcing, Vendor Management, Leadership, Program Management, Contract Negotiation, and Integration.
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