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Liam Grant Email & Phone Number

Senior Penetration Tester at Mastercard
Location: Ireland 6 work roles 1 school
1 work email found @mastercard.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

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Work email l****@mastercard.com
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Current company
Role
Senior Penetration Tester
Location
Ireland
Company size

Who is Liam Grant? Overview

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Quick answer

Liam Grant is listed as Senior Penetration Tester at Mastercard, a with 29583 employees, based in Ireland. AeroLeads shows a work email signal at mastercard.com and a matched LinkedIn profile for Liam Grant.

Liam Grant previously worked as Senior CyberSecurity Analyst - Threat and Vulnerability Management at Synchronoss Technologies and Senior CyberSecurity Analyst - Threat and Vulnerability Management at Pramerica. Liam Grant holds Bachelor Of Science (Honours), Computer Science, First Class Honours from Letterkenny Institute Of Technology.

Company email context

Email format at Mastercard

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{first}.{last}@mastercard.com
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Profile bio

About Liam Grant

Liam Grant is a Senior Penetration Tester at Mastercard. He possess expertise in network security, computer security, vulnerbility advisory process, cloud computing, virtualization and 17 more skills. He is proficient in English.

Listed skills include Network Security, Computer Security, Vulnerbility Advisory Process, Cloud Computing, and 18 others.

Current workplace

Liam Grant's current company

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Mastercard
Mastercard
Senior Penetration Tester
purchase, new york, united states
Website
Employees
29583
AeroLeads page
6 roles

Liam Grant work experience

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Senior Penetration Tester

Current
Aug 2022 - Present

Senior Cybersecurity Analyst - Threat And Vulnerability Management

County Dublin, Ireland

•Tenable Nessus.sc Scanning and Scheduling/Updating of Asset Groups/Authentication Records/Scan Policies/Appliance Updates/Etc. •Attempt to Confirm Vulnerability findings by using alternate Tools and Approaches•POC/Deployment/Implementation of ServiceNow Vulnerability Response Module to aid Vulnerability Management Processes/Reporting•Vulnerability Advisory Process, Provide judgement on how specific vulnerabilities pertain to the enterprise and what rating that vulnerability should receive.•Provide reports to leadership communicating current vulnerability exposure•Revise processes and procedures, metrics, and documentation that continue to improve the Vulnerability Management process

Oct 2018 - Jul 2022

Senior Cybersecurity Analyst - Threat And Vulnerability Management

Letterkenny

•Perform Validation on previous Red Team/Pen-Test Findings•Attempt to Confirm Vulnerability findings by using alternate Tools and Approaches•Complete Deployment of Qualys Vulnerability Management, Policy Compliance and Cloud Agents•Revise processes and procedures, metrics, and documentation that continue to improve the vulnerability management capability•Provide reports to leadership communicating current vulnerability exposure•Vulnerability Advisory Process, Provide judgement on how specific vulnerabilities pertain to the enterprise and what rating that vulnerability should receive.•Ensure reporting metrics relay proper risk posture to leadership and evolve as necessary

Jun 2017 - Sep 2018

Cybersecurity Analyst - Threat And Vulnerability Management

•SSL/TLS Insecure Protocol/Ciphersuites Remediation, reviewing what protocols/ciphersuites are running and advising on the steps that are required for remediation.•Vulnerability Advisory Process, Provide judgement on how specific vulnerabilities pertain to the enterprise and what rating that vulnerability should receive. (Critical/High/Medium/Low)•QualysGuard Vulnerability Scan Reviews, provide feedback and remediation steps based on the data provided through automated vulnerability scanning. •Provide Threat and Vulnerability Team Sign-Off for new/existing appliances to verify they have a secure configuration before they are exposed to traffic.• QualysGuard Scanning and Scheduling/Updating of Asset Groups/Authentication Records/Option Profiles/Appliance Replacement/Etc.•Assisting Customers during the process to ensure they achieve the most accurate results in a timely manner.•Identifying and resolving issues with environment performance and reliability.•Working with the Vendors and Internal Teams to resolve Issues.•Adhoc/Custom report generation upon request.

Nov 2016 - Jun 2017

Lead Cybersecurity Analyst - Vulnerability Scanning And File Integrity Monitoring

• QualysGuard Scanning and Scheduling/Updating of Asset Groups/Authentication Records/Option Profiles/Appliance Replacement/Etc.•Tripwire CCM Scanning and Scheduling/Updating of Asset Groups/Creation of Credentials/Maintenance of Scan Tasks/Dynamic Searches/Scheduled Reports/Etc.•Tripwire Tool-set Integration with Active Directory.•Modification of SQL 2012 Database to update application data via SQL Statements.•Creation of Topology Documentation for both Systems and related Appliances.•Change Request Management for both Vulnerability Scanning and File Integrity Monitoring.•Assisting Customers during the process to ensure they achieve the most accurate results in a timely manner.•Assisting Customers of the tools understand if these tools will meet their requirements and how they will be deployed.•Identifying and resolving issues with environment performance and reliability.•Working with the Vendors and Internal Teams to resolve Issues.•Adhoc/Custom report generation upon request.•Working with PCI, SOX and HIPAA Teams to ensure all relevant hosts are being monitored and scanned.

Jul 2015 - Dec 2016

Cybersecurity Analyst - Vulnerability Scanning And File Integrity Monitoring

• Creating/Closing change requests for both Vulnerability Scanning and File integrity monitoring on a weekly basis.• Qualys Scanning/Updating Asset groups/Qualys Schedules/Authentication.• Assisting requesters in understanding the steps that need to be taken for the process to be completed successfully.• Adhoc Report Generation/Customized Report Generation.• Working with Tripwire/Report Generation.

Jul 2014 - Jun 2015
Team & coworkers

Colleagues at Mastercard

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1 education record

Liam Grant education

FAQ

Frequently asked questions about Liam Grant

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

What company does Liam Grant work for?

Liam Grant works for Mastercard.

What is Liam Grant's role at Mastercard?

Liam Grant is listed as Senior Penetration Tester at Mastercard.

What is Liam Grant's email address?

AeroLeads has found 1 work email signal at @mastercard.com for Liam Grant at Mastercard.

Where is Liam Grant based?

Liam Grant is based in Ireland while working with Mastercard.

What companies has Liam Grant worked for?

Liam Grant has worked for Mastercard, Synchronoss Technologies, Pramerica, and Allstate Northern Ireland.

Who are Liam Grant's colleagues at Mastercard?

Liam Grant's colleagues at Mastercard include Vrushali Karla, Nikolaus Trzeschan, João Frazão, Nidzomen Tv, and Emily Bingay.

How can I contact Liam Grant?

You can use AeroLeads to view verified contact signals for Liam Grant at Mastercard, including work email, phone, and LinkedIn data when available.

What schools did Liam Grant attend?

Liam Grant holds Bachelor Of Science (Honours), Computer Science, First Class Honours from Letterkenny Institute Of Technology.

What skills is Liam Grant known for?

Liam Grant is listed with skills including Network Security, Computer Security, Vulnerbility Advisory Process, Cloud Computing, Virtualization, Academic Writing, Linux, and Java.

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