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Christopher Barnum Email & Phone Number
Cyber Security Engineer
at
Visa
1 work email found
@rackspace.com
3 phones found area 518
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Cyber Security Engineer
Location
Ashburn, Virginia, United States
Company size
Who is Christopher Barnum? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Christopher Barnum is listed as Cyber Security Engineer at Visa, a company with 28536 employees, based in Ashburn, Virginia, United States. AeroLeads shows a work email signal at rackspace.com, phone signal with area code 518, and a matched LinkedIn profile for Christopher Barnum.
Christopher Barnum previously worked as Engineer III at Crowdstrike and Site Reliability Engineer at Vmware. Christopher Barnum holds Bachelors Of Science, Computer Engineering Technology from Suny Polytechnic Institute.
Company email context
Email format at Visa
This section adds company-level context without repeating Christopher Barnum's masked contact details.
{first}.{last}@rackspace.com
86% confidence
AeroLeads found 1 current-domain work email signal for Christopher Barnum. Compare company email patterns before reaching out.
Profile bio
About Christopher Barnum
Geek, Father, Rebel.Geek - My career follows my enthusiastic geeking out on innovation in hardware, software, workflow, both old and new. Father - Married with children and extremely grateful. Having a family reinforces the need to be efficient with time and priorities. I'm more critical of quality review to keep people from having to work late or get paged at 3am. I'm also more patient to mentor and present to a wider audience. Rebel - Originally "Rebel Scum", quoting Star Wars, I'm more than willing to question complacency. The term "That's how we always do it" can be an alarm. Bad code is not job security, its laziness. Poor documentation and non standardized procedures is a catastrophe waiting to happen. Let's be industries leaders in innovations and changing the game. My goal is to always optimize and automate myself out of a job.
Listed skills include Linux, Apache, System Administration, Troubleshooting, and 24 others.
Current workplace
Christopher Barnum's current company
Company context helps verify the profile and gives searchers a useful next step.
Visa
12 roles
Christopher Barnum work experience
A career timeline built from the work history available for this profile.
Engineer Iii
Current
Jun 2024 - Present
Site Reliability Engineer
Experience working in FedRAMP NIST 800-53 EnvironmentSetup Azure Sentinel to achieve CMMC NIST 800-171 RequirementsUtilized Splunk and Solarwinds for proactive log and alert operationsIndependent Developer creating Active Automation of Manual Tasks with PipelinesUtilizes Concourse-Ci, Jenkins, Gitlab & ArtifactoryLanguages/Syntax used include bash, python.
Oct 2021 - May 2024
Systems Engineer Ii
Served as a Amazon Linux SME across multiple teams. Developed automated Amazon Linux kernel management solution for Bare Metal HA MySQL Cluster. Tested, Benchmarked, and Qualified new hardware for fleet migrations.Prevented entire region wide service outages in EC2. Debugged and resolved software and hardware issues quickly. (GDB, strace )Developed Full.
May 2017 - Oct 2021
Customer Data Engineer
Data Stores Support TeamSupport Customers with DbaaS Products that include:-Mysql (MariaDB, Percona, Oracle-MySQL)-Hadoop (Hortonworks)-RedisWith infrastructure support for:DebianRedhat/CentosOpenVZHAProxyArchitect Datastore Solutions for Customers.Troubleshoot and Resolve product interruptions.Document internal and external articles. Script tools to.
Sep 2015 - May 2017
Linux Systems Administrator Ii
Managed Cloud SupportManaged and advise customers on protocol for security and best practice.Work in a team environment to exchange support and knowledge. Create and maintain and troubleshoot solutions for various customers. Educate co workers and provide an escalation point for resolutions. Apache & Nginx Web Servers - Setup and Tuning for multiple hosts.
May 2013 - Sep 2015
Websphere-Support Systems Administrator
As a systems administrator for WebSphere-Support at NYS Finance Regulation and Gaming (formerly NYS Taxation and Finance). My duties included;- the installation, maintenance and troubleshooting of the software listed below. - working with people across departments to accomplish agency goals. - learning and understanding new software independently. - after.
Aug 2009 - Apr 2013
Help Desk
Resolve technical problems students had with equipment or accessing campus resources such as network login or wireless activation.
Aug 2008 - May 2009
Student Assistant
New York State Office Of The State Comptroller
Installed & AdministratedWindows Server 2003/R2/2008VMware ESX 3.0.2/3.5VMware VirtualCenter 2/2.5SQL Server 2005IIS 6/7DSM/APM Desktop Monitoring & ReportsEPO ePolicy Orechstrator / McAfeeResponsibilitiesAdministration with 300 Windows servers across 250 VMware Servers, with 2500 Users. Created policies & procedures to adhere to Security.
Jun 2008 - Aug 2008
It Consultant / Pc Technician / Programmer
Tech Valley Networking
On call status with the responsibility to travel to clients and provide them with technical support, and solutions toproblems reported. My position had me doing everything from hardware to software troubleshooting and repair. Thisincluded desktops, servers, and printer repair. With every upgrade, came the challenge of compatibility withproprietary.
Feb 2005 - Feb 2008
Co-Founder / Webmaster
Thewac.Net
Developed and maintained a community website with forums to service 500+ users on daily basis. Our websitereceived nearly 1000 hits a day on average. This website was written in PHP with MySQL for storage. An interfacewas written for end users to be used with browsers, while a second interface was written for a modified computergame to synchronize.
Feb 2005 - Jan 2007
Computer Laboratory / Technical Support
I monitored the lab, and assisted students with their work, tutored Visual Basic.NET, and fixed PC's. I built a Linux Computer Lab with Ubuntu 6.06 with Linux High-Availability for clustering.
Aug 2004 - May 2006
Team & coworkers
Colleagues at Visa
Other employees you can reach at visa.com. View company contacts for 28536 employees →
AH
Andrew Homsi
Colleague at Visa
Leesburg, Virginia, United States, United States
View →
GN
Gopal N
Colleague at Visa
Austin, Texas, United States, United States
View →
SG
Sergio Garcia
Colleague at Visa
Miami, Florida, United States, United States
View →
RF
Roland Fritsch
Colleague at Visa
Frankfurt Rhine-Main Metropolitan Area, Germany
View →
SM
Shameem Mohammed
Colleague at Visa
Singapore, Singapore
View →
AS
Abdus Sattar
Colleague at Visa
Dhaka, Dhaka, Bangladesh, Bangladesh
View →
OC
Ozlem Cetinkaya
Colleague at Visa
Istanbul, Türkiye, Turkey
View →
PL
Parry Lim
Colleague at Visa
Singapore, Singapore
View →
SS
Sharon Simpson
Colleague at Visa
San Mateo, California, United States, United States
View →
AB
Amanpal Bansal
Colleague at Visa
London, England, United Kingdom, United Kingdom
View →
Andrew Homsi
Colleague at Visa
Leesburg, Virginia, United States, United States
View →
GN
Gopal N
Colleague at Visa
Austin, Texas, United States, United States
View →
SG
Sergio Garcia
Colleague at Visa
Miami, Florida, United States, United States
View →
RF
Roland Fritsch
Colleague at Visa
Frankfurt Rhine-Main Metropolitan Area, Germany
View →
SM
Shameem Mohammed
Colleague at Visa
Singapore, Singapore
View →
AS
Abdus Sattar
Colleague at Visa
Dhaka, Dhaka, Bangladesh, Bangladesh
View →
OC
Ozlem Cetinkaya
Colleague at Visa
Istanbul, Türkiye, Turkey
View →
PL
Parry Lim
Colleague at Visa
Singapore, Singapore
View →
SS
Sharon Simpson
Colleague at Visa
San Mateo, California, United States, United States
View →
AB
Amanpal Bansal
Colleague at Visa
London, England, United Kingdom, United Kingdom
View →
2 education records
Christopher Barnum education
Bachelors Of Science, Computer Engineering Technology
Suny Polytechnic Institute
Associates In Applied Science, Computer Networks & Systems
Schenectady County Community College
FAQ
Frequently asked questions about Christopher Barnum
Quick answers generated from the profile data available on this page.
What company does Christopher Barnum work for?
Christopher Barnum works for Visa.
What is Christopher Barnum's role at Visa?
Christopher Barnum is listed as Cyber Security Engineer at Visa.
What is Christopher Barnum's email address?
AeroLeads has found 1 work email signal at @rackspace.com for Christopher Barnum at Visa.
What is Christopher Barnum's phone number?
AeroLeads has found 3 phone signal(s) with area code 518 for Christopher Barnum at Visa.
Where is Christopher Barnum based?
Christopher Barnum is based in Ashburn, Virginia, United States while working with Visa.
What companies has Christopher Barnum worked for?
Christopher Barnum has worked for Visa, Crowdstrike, Vmware, Amazon Web Services (Aws), and Rackspace, The #1 Managed Cloud Company.
Who are Christopher Barnum's colleagues at Visa?
Christopher Barnum's colleagues at Visa include Andrew Homsi, Gopal N, Sergio Garcia, Roland Fritsch, and Shameem Mohammed.
How can I contact Christopher Barnum?
You can use AeroLeads to view verified contact signals for Christopher Barnum at Visa, including work email, phone, and LinkedIn data when available.
What schools did Christopher Barnum attend?
Christopher Barnum holds Bachelors Of Science, Computer Engineering Technology from Suny Polytechnic Institute.
What skills is Christopher Barnum known for?
Christopher Barnum is listed with skills including Linux, Apache, System Administration, Troubleshooting, Servers, Dns, Mysql, and Linux System Administration.
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