John Newcomer
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John Newcomer Email & Phone Number

Information Security Manager at Citi
Location: Greater St. Louis, United States, United States 5 work roles 3 schools
1 work email found @citi.com 2 phones found area 636 and 202 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email j****@citi.com
Direct phone (636) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Information Security Manager
Location
Greater St. Louis, United States, United States
Company size

Who is John Newcomer? Overview

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Quick answer

John Newcomer is listed as Information Security Manager at Citi, a company with 10 employees, based in Greater St. Louis, United States, United States. AeroLeads shows a work email signal at citi.com, phone signal with area code 636, 202, and a matched LinkedIn profile for John Newcomer.

John Newcomer previously worked as SVP Information Security at Citi and Group Information Security Officer at Citi. John Newcomer holds Mba, Business Administration from Webster University.

Company email context

Email format at Citi

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{first}.{last}@citi.com
86% confidence

AeroLeads found 1 current-domain work email signal for John Newcomer. Compare company email patterns before reaching out.

Profile bio

About John Newcomer

Demonstrated responsibility and impact over a variety of development, architecture, information security and management roles.

Listed skills include Enterprise Architecture, Information Security, Data Center, Java, and 19 others.

Current workplace

John Newcomer's current company

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

Citi
Citi
Information Security Manager
Mumbai, Maharashtra
Website
Employees
10
AeroLeads page
5 roles

John Newcomer work experience

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

Svp Information Security

Current

New York, New York, US

Manage team of excellent process specialists, program SMEs, and information security officers (ISO) providing program oversight, support, and consulting for other ISOs and business partners across all consumer business units.Provide thought leadership in a strategic shift in approach to managing/reducing information risk. Strong problem solving, risk.

Sep 2015 - Present

Group Information Security Officer

New York, New York, US

Group Information Security Officer for a top-ten national mortgage lender. Accountable for all information security program activities, business consulting / policy interpretation, and management of a team of dedicated professional security officers.Strong problem solving, risk management and internal controls skills. Working knowledge of the technology.

Jun 2014 - Sep 2015

Business Information Security Officer

New York, New York, US

Increasing responsibility for implementing IS program for national top-ten mortgage lender. Effective communication from senior management to line staff. Advanced presentation and relationship management skills. Assess and define appropriate controls for IS threats, and document business responses. Provide ad-hoc business and technology security.

Oct 2007 - Jun 2014

Sr. It Developer / Architect

New York, New York, US

Developed “Best Practices” guide, build tools, and code review process for a variety of computerlanguages. Chaired a “Technology Review Board” which improved projects early in the life cycle.Performed developer support functions such as implementation of tool upgrades, defining standardconfigurations for development tools and open-source components, and.

Nov 1998 - Oct 2007

Various Roles

Dallas, TX, US

Designed, developed, and maintained CD–ROM mastering system and billing analysis software. Developer and tester for various client–server programs. Converting projects from C to C++, anddeveloped stress, regression, and volume testing scripts. Streamlined corporate payroll and 1099 batch processing to reduce rework and increase operational flexibility.

Jan 1990 - Nov 1998
Team & coworkers

Colleagues at Citi

Other employees you can reach at citibank.com. View company contacts for 10 employees →

3 education records

John Newcomer education

Mba, Business Administration

Webster University

Ms, Computer Science

Webster University

Bs, Computer Science

Missouri University Of Science And Technology
FAQ

Frequently asked questions about John Newcomer

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

What company does John Newcomer work for?

John Newcomer works for Citi.

What is John Newcomer's role at Citi?

John Newcomer is listed as Information Security Manager at Citi.

What is John Newcomer's email address?

AeroLeads has found 1 work email signal at @citi.com for John Newcomer at Citi.

What is John Newcomer's phone number?

AeroLeads has found 2 phone signal(s) with area code 636, 202 for John Newcomer at Citi.

Where is John Newcomer based?

John Newcomer is based in Greater St. Louis, United States, United States while working with Citi.

What companies has John Newcomer worked for?

John Newcomer has worked for Citi and At&T.

Who are John Newcomer's colleagues at Citi?

John Newcomer's colleagues at Citi include Rupayan Ghosh, Jasmine Rice, Gokula Krishnan S, Siddharth Rawat, and Sathya T.

How can I contact John Newcomer?

You can use AeroLeads to view verified contact signals for John Newcomer at Citi, including work email, phone, and LinkedIn data when available.

What schools did John Newcomer attend?

John Newcomer holds Mba, Business Administration from Webster University.

What skills is John Newcomer known for?

John Newcomer is listed with skills including Enterprise Architecture, Information Security, Data Center, Java, Cissp, Business Continuity, It Strategy, and Disaster Recovery.

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