William Bayer
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William Bayer Email & Phone Number

Managing Consultant at Mastercard at Mastercard Data & Services
Location: San Francisco, California, United States 7 work roles 2 schools
2 work emails found @mastercard.com 3 phones found area 732 and 800 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 3 phones

Work email w****@mastercard.com
Direct phone (732) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Managing Consultant at Mastercard
Location
San Francisco, California, United States
Company size

Who is William Bayer? Overview

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Quick answer

William Bayer is listed as Managing Consultant at Mastercard at Mastercard Data & Services, a with 2282 employees, based in San Francisco, California, United States. AeroLeads shows a work email signal at mastercard.com, phone signal with area code 732, 800, and a matched LinkedIn profile for William Bayer.

William Bayer previously worked as Senior Managing Consultant at Mastercard Data & Services and Managing Consultant at Mastercard. William Bayer holds Bachelor Of Business Administration (Bba), Finance And International Business from The George Washington University School Of Business.

Company email context

Email format at Mastercard Data & Services

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{first}_{last}@mastercard.com
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AeroLeads found 2 current-domain work email signals for William Bayer. Compare company email patterns before reaching out.

Profile bio

About William Bayer

I'm a Managing Consultant helping businesses make sense of the world, and their industry, by combining traditional consulting services with Mastercard's rich data assets and in-house technology. At Mastercard, we partner with our clients to bring our analytics services to bear and help them use data to solve their toughest problems.When I'm not on the job I like to hit the trails for a hike, try out a new recipe in the kitchen, or continue to hone my woodworking skills. *Analytical Skills*Written & Oral Communications*Project Management*Team Management / People Management*Team Leadership*Client Relationship Management*Organized & Detail-Oriented*Salesforce.com*Excel*PowerPoint, Presentation Development*Mathematics, Statistics, Predictive Analytics*SQL, Database Management, ETL

Listed skills include Data Analysis, Analytics, Microsoft Office, Financial Modeling, and 13 others.

Current workplace

William Bayer's current company

Company context helps verify the profile and gives searchers a useful next step.

Mastercard Data & Services
Mastercard Data & Services
Managing Consultant at Mastercard
San Francisco Bay Area
Employees
2282
AeroLeads page
7 roles

William Bayer work experience

A career timeline built from the work history available for this profile.

Managing Consultant

Purchase, Ny, Us

Feb 2020 - Feb 2022

Engagement Manager

Arlington, Va, Us

Partnered with clients across various industries to help them analyze their data and optimize their investments using business experimentation

Feb 2018 - Feb 2020

Managing Consultant - Advanced Analytics And Watson At Ibm Global Business Services

Ibm

Armonk, New York, Ny, Us

USAID Supply Chain: (2016-Present)- Developed forecasting and demand planning models in Excel used to inform procurements for the supply chain with complementary SAS programs to standardize, cleanse, & merge disparate datasets - Utilized analytics tools and Excel models to support supply chain initiatives including procurement strategies, supply chain optimization and integration, and transition plans for central warehouses, amongst others- Managed the supply chain for surgical kits with responsibilities including planning, sourcing, procurement, supplier relations, client relations, and developing sourcing / warehousing strategies

Jul 2017 - Feb 2018

Senior Consultant - Advanced Analytics And Watson

Ibm

Armonk, New York, Ny, Us

USAID Supply Chain: (2016-Present)- Developed forecasting and demand planning models in Excel used to inform procurements for the supply chain with complementary SAS programs to standardize, cleanse, & merge disparate datasets - Utilized analytics tools and Excel models to support supply chain initiatives including procurement strategies, supply chain optimization and integration, and transition plans for central warehouses, amongst others- Managed the supply chain for surgical kits with responsibilities including planning, sourcing, procurement, supplier relations, client relations, and developing sourcing / warehousing strategiesUSPS: International Network Analysis (2015-2016)- Key team member responsible for the development of analyses and models utilizing large, uncleansed datasets for client requests and other longer term initiatives - Lead teams in analysis design, execution, and presentation using SAS, SQL, VBA, and Microsoft Office USPS: 2015 ICAIR Solicitation: (2014-2015)- Developed, improved, and validated business rules and a large scale optimization program for a multi-billion dollar solicitation- Developed analytical tools in SAS and Excel to display key metrics and guide decision making during the evaluation of bid proposals and subsequent negotiationsUSPS: Domestic Network Optimization (2013)- Researched and cleansed data sets used for an optimization of USPS’ domestic trucking network- Synthesized results from the optimization model into actionable reports for project management and clientsUSPS: International Business Development (2012)- Provided financial analysis support to USPS executives for strategic initiatives, including a comprehensive eCommerce strategy, a $20M arbitrage opportunity, and a $250M contract with a large foreign postal administration- Developed multiple financial models for USPS’ contract management and new product development- Maintained databases and queried data for volume, cost, and revenue analysis

Aug 2012 - Jun 2017

Project Controller Summer Scholar

Worldwide, Oo

- Reconciled financial models to facilitate accurate tracking of projects and to improve profitability.- Generated reports for clients and partners used for leverage analysis, expense allocation and the reporting of key financial metrics. - Constructed and populated financial tracking models utilizing contracts, statements of work, and pricing models.

Jun 2011 - Aug 2011
Team & coworkers

Colleagues at Mastercard Data & Services

Other employees you can reach at mastercardservices.com. View company contacts for 2282 employees →

2 education records

William Bayer education

Bachelor Of Business Administration (Bba), Finance And International Business

The George Washington University School Of Business

Education record

Universtat Autonoma De Barcelona
FAQ

Frequently asked questions about William Bayer

Quick answers generated from the profile data available on this page.

What company does William Bayer work for?

William Bayer works for Mastercard Data & Services.

What is William Bayer's role at Mastercard Data & Services?

William Bayer is listed as Managing Consultant at Mastercard at Mastercard Data & Services.

What is William Bayer's email address?

AeroLeads has found 2 work email signals at @mastercard.com for William Bayer at Mastercard Data & Services.

What is William Bayer's phone number?

AeroLeads has found 3 phone signal(s) with area code 732, 800 for William Bayer at Mastercard Data & Services.

Where is William Bayer based?

William Bayer is based in San Francisco, California, United States while working with Mastercard Data & Services.

What companies has William Bayer worked for?

William Bayer has worked for Mastercard Data & Services, Mastercard, Applied Predictive Technologies, Ibm, and Deloitte Consulting.

Who are William Bayer's colleagues at Mastercard Data & Services?

William Bayer's colleagues at Mastercard Data & Services include Ravi Ranjan, Carlos Morgado Felicio, Victor Oliveira Milaré, Isabela Tazima, and Koustav Mitra.

How can I contact William Bayer?

You can use AeroLeads to view verified contact signals for William Bayer at Mastercard Data & Services, including work email, phone, and LinkedIn data when available.

What schools did William Bayer attend?

William Bayer holds Bachelor Of Business Administration (Bba), Finance And International Business from The George Washington University School Of Business.

What skills is William Bayer known for?

William Bayer is listed with skills including Data Analysis, Analytics, Microsoft Office, Financial Modeling, Sas, Microsoft Excel, Sql, and Powerpoint.

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