Owen Mccarthy
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Owen Mccarthy Email & Phone Number

Application Security Engineer III at FloQast
Location: Mexico, New York, United States 3 work roles 1 school
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✓ Verified May 2026 3 data sources Profile completeness 86%

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Current company
Role
Application Security Engineer III
Location
Mexico, New York, United States
Company size

Who is Owen Mccarthy? Overview

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Quick answer

Owen Mccarthy is listed as Application Security Engineer III at FloQast, a company with 867 employees, based in Mexico, New York, United States. AeroLeads shows a matched LinkedIn profile for Owen Mccarthy.

Owen Mccarthy previously worked as Application Security Engineer II at Floqast and Platform Security Intern at Tesla. Owen Mccarthy holds Bachelor Of Science - Bs, Computer And Information Systems Security/Information Assurance from Rochester Institute Of Technology.

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FloQast

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Profile bio

About Owen Mccarthy

I'm an Application Security Engineer passionate about secure software development. I currently work at FloQast, where I have taken ownership over our static application security testing (SAST) tool, Semgrep. I’ve developed custom rules to detect cutting-edge vulnerabilities, as well as plenty of common misconfigurations. I also lead our HackerOne bug bounty program, reviewing reports, guiding researchers, and collaborating with engineers to remediate vulnerabilities.Outside of work, I’m an avid coder with a passion for bug bounty hunting and security research. I've built several CLI tools to aid in security testing, such as WebStrings—a tool like `strings` on linux, but for finding strings in HTTP responses and client-side code—and ScanBOM, which scans software dependencies using Semgrep to uncover vulnerabilities. I also recently built out AppScan, which is a tool to automate my process for DNS querying and subdomain enumeration for bug bounty hunting, but I'm working on rebuilding that in Golang to enable quicker development of additional modules.

Current workplace

Owen Mccarthy's current company

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FloQast
Floqast
Application Security Engineer III
Mexico, NY, US
Website
Employees
867
AeroLeads page
3 roles

Owen Mccarthy work experience

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Application Security Engineer Iii

Mexico, NY, US

Application Security Engineer Ii

Current

United States

  • Took on ownership of Semgrep, Floqast’s SAST. Created rules to detect application security vulnerabilities from up-to-date attack techniques and worked with developers to streamline the CI/CD process and remediate.
  • Took on ownership of FloQast’s HackerOne bug bounty program and launched an authenticated program. Looked over every finding that was reported, and delegated further investigation to the team when necessary. Wrote.
  • Architected and implemented a new system to make environment variables and URLs modular in the application so that the DevOps team can deploy new environments, including the one for the authenticated bug bounty.
  • Identified IDORs and vulnerabilities in the application's JWT validation, user setup, and user document uploads through regular penetration tests and remediated the findings, putting systems in place to prevent the.
Oct 2022 - Present

Platform Security Intern

Fremont, California, United States

  • Worked on the Platform Security team to engineer new cyber security infrastructure and practices at Tesla
  • Experienced professional communication and management practices, as well as a trip to RSA 2020 to keep up with modern security practices and technologies
  • Led meetings with cyber security vendors
Jan 2020 - Aug 2020
Team & coworkers

Colleagues at FloQast

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1 education record

Owen Mccarthy education

FAQ

Frequently asked questions about Owen Mccarthy

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What company does Owen Mccarthy work for?

Owen Mccarthy works for FloQast.

What is Owen Mccarthy's role at FloQast?

Owen Mccarthy is listed as Application Security Engineer III at FloQast.

Where is Owen Mccarthy based?

Owen Mccarthy is based in Mexico, New York, United States while working with FloQast.

What companies has Owen Mccarthy worked for?

Owen Mccarthy has worked for Floqast and Tesla.

Who are Owen Mccarthy's colleagues at FloQast?

Owen Mccarthy's colleagues at FloQast include Ryan Gragasin, Brittney Kashuba, Chris Mcguire, Colin O'Brien, and Melissa Powell.

How can I contact Owen Mccarthy?

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What schools did Owen Mccarthy attend?

Owen Mccarthy holds Bachelor Of Science - Bs, Computer And Information Systems Security/Information Assurance from Rochester Institute Of Technology.

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