AeroLeads people directory · profile
Mark Haase Email & Phone Number
Principal Software Engineer
at
Appgate
1 work email found
@mitre.org
2 phones found area 571
LinkedIn matched
✓ Verified July 2026
4 data sources
Profile completeness 100%
Current company
Role
Principal Software Engineer
Location
Washington Dc-Baltimore Area, United States
Company size
Who is Mark Haase? Overview
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Quick answer
Mark Haase is listed as Principal Software Engineer at Appgate, a with 412 employees, based in Washington Dc-Baltimore Area, United States. AeroLeads shows a work email signal at mitre.org, phone signal with area code 571, and a matched LinkedIn profile for Mark Haase.
Mark Haase previously worked as Chief Engineer, Center for Threat-Informed Defense at Mitre and Lead Offensive Security Engineer at Mitre. Mark Haase holds Master Of Information And Data Science, Artificial Intelligence from Uc Berkeley School Of Information.
Company email context
Email format at Appgate
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{first_initial}{last}@mitre.org
86% confidence
AeroLeads found 1 current-domain work email signal for Mark Haase. Compare company email patterns before reaching out.
Profile bio
About Mark Haase
I am a computer scientist focused on information security (ok, fine… “cyber”) and machine learning (finnnnee… “AI”). I taught myself to code at 13, learning BASIC from a book I found in the church library. My high school didn’t have computer science, so then I learned Java and Linux on my own. I earned a CS minor in college, and that grew into a 15+ years career. Underneath it all, I still love the immense satisfaction of building useful things out of abstract bits. I cannot imagine doing anything else.The quirky and decentralized internet of the ‘90s turned into the slick walled gardens of 2020. Tech turned into a 21st century tobacco industry, abdicating its ethical duty and valuing stock options over human well-being. But that naive kid in me–the one that spent hours poring over code in a church library–still believes in the power of technology to improve and amaze the world.
Listed skills include Nist, Web 2.0, Security, Business Intelligence, and 30 others.
Current workplace
Mark Haase's current company
Company context helps verify the profile and gives searchers a useful next step.
Appgate
10 roles
Mark Haase work experience
A career timeline built from the work history available for this profile.
Chief Engineer, Center For Threat-Informed Defense
Current* Oversee and coordinate technical leads for the Center's R&D projects.* Responsible for technical quality and delivery across all Center projects.* Develop technical strategy for the Center to optimize spending and process automation.
Apr 2022 - Present
Lead Offensive Security Engineer
* Tech lead for ATT&CK Flow project in MITRE Engenuity’s Center for Threat-Informed Defense (CTID).* Senior software engineer for DOJ project to automate cyber breach forensics.
Oct 2021 - Apr 2022
Software Engineer
Development and deployment of foundational security stack for M365 stack in USGOV cloud.
Jun 2020 - Sep 2021
Computer Scientist
Semisuper Inc.
Sr. Software Engineer * Lead engineer on crawling & scraping application built in Dart, Angular, and Python. Wireframed in 8 weeks and delivered prototype in 24 weeks. Deployed pilots to government partners and production-ready within 1 year.* Lead engineer on headless browsing system with a de novo Python implementation of Chrome DevTools Protocol (CDP). Production-ready within 6 months.* Published Dark Web Map, an interactive visualization of the dark web that received 100k hits and was featured on forbes.com, vice.com, and cnbc.com.* Developed CAPTCHA solving library that uses OpenCV and Keras to build convolutional neural networks (CNNs) that can solve CAPTCHA tests for some popular software such as WordPress and phpBB. Deployed using TensorFlow Lite models inside AWS Lambda with API Gateway.Penetration Tester * Senior penetration tester on multinational law firm engagement and several tech startups for web application and network pen tests.* Discovered 0-day local privilege escalation (LPE) in Liquidware Labs ProfileUnity and wrote a working proof-of-concept.* Published proof-of-concept exploits for several vulnerabilities such as CVE-2019-6111/CVE-2019-6110 and CVE-2018-11235.
Jan 2015 - Jun 2020
Director
As director of product development, I managed the design, development, marketing, and sales of 5 security products from scratch in under 3 years, including vulnerability management, pen testing, machine-readable intelligence, STIGs, and SCAP. I was also an instructor in the School Of Cybersecurity, where I taught web application security courses for DISA, NASA, and DOT.
Apr 2012 - Dec 2014
Project Manager
Managing a software team to build open source FISMA compliance software for federal, state, and municipal governments.
May 2009 - May 2012
Consultant
Managing the development of an open-source web application for the U.S. federal government. OpenFISMA assists security officers with the tracking and reporting of information security findings in accordance with FISMA requirements.
May 2008 - May 2009
Consultant 1
Business analyst, ETL analyst, ETL design/implementation, Business Intelligence, Data Warehousing, IT Consulting
Jan 2006 - Apr 2008
Web Developer
Summer internship as a PHP/MySQL developer for the IT department's internal customer service operations.
May 2005 - Aug 2005
Team & coworkers
Colleagues at Appgate
Other employees you can reach at appgate.com. View company contacts for 412 employees →
YV
Yulli Villanueva
Colleague at AppgateMiami, Florida, United States
View →
DB
David Butler
Colleague at AppgateUnited States
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EU
Erika Ulloa
Colleague at AppgateBogota, D.C., Capital District, Colombia
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OE
Omar Espitia
Colleague at AppgateBogota, D.C., Capital District, Colombia
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BO
Brian O'Donnell
Colleague at AppgateFranklin, Massachusetts, United States
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MP
Marlon Pinzón
Colleague at AppgateColombia
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KC
Kevin Cavanaugh
Colleague at AppgateOttawa, Ontario, Canada
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JC
Juan Camilo D Vera Ramírez
Colleague at AppgateBogota, D.C., Capital District, Colombia
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OE
Oscar Esleider Perdomo Narvaez
Colleague at AppgateBogota, D.C., Capital District, Colombia
View →
NS
Nicholas Strombosky
Colleague at AppgateGreater Boston, United States
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Yulli Villanueva
Colleague at AppgateMiami, Florida, United States
View →
DB
David Butler
Colleague at AppgateUnited States
View →
EU
Erika Ulloa
Colleague at AppgateBogota, D.C., Capital District, Colombia
View →
OE
Omar Espitia
Colleague at AppgateBogota, D.C., Capital District, Colombia
View →
BO
Brian O'Donnell
Colleague at AppgateFranklin, Massachusetts, United States
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MP
Marlon Pinzón
Colleague at AppgateColombia
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KC
Kevin Cavanaugh
Colleague at AppgateOttawa, Ontario, Canada
View →
JC
Juan Camilo D Vera Ramírez
Colleague at AppgateBogota, D.C., Capital District, Colombia
View →
OE
Oscar Esleider Perdomo Narvaez
Colleague at AppgateBogota, D.C., Capital District, Colombia
View →
NS
Nicholas Strombosky
Colleague at AppgateGreater Boston, United States
View →
3 education records
Mark Haase education
Master Of Information And Data Science, Artificial Intelligence
Uc Berkeley School Of Information
Ba, Economics, Politics, & Philosophy
University Of Pennsylvania
Education record
Pace Academy
FAQ
Frequently asked questions about Mark Haase
Quick answers generated from the profile data available on this page.
What company does Mark Haase work for?
Mark Haase works for Appgate.
What is Mark Haase's role at Appgate?
Mark Haase is listed as Principal Software Engineer at Appgate.
What is Mark Haase's email address?
AeroLeads has found 1 work email signal at @mitre.org for Mark Haase at Appgate.
What is Mark Haase's phone number?
AeroLeads has found 2 phone signal(s) with area code 571 for Mark Haase at Appgate.
Where is Mark Haase based?
Mark Haase is based in Washington Dc-Baltimore Area, United States while working with Appgate.
What companies has Mark Haase worked for?
Mark Haase has worked for Appgate, Mitre, Microsoft, Semisuper Inc., and Lunarline, Inc.
Who are Mark Haase's colleagues at Appgate?
Mark Haase's colleagues at Appgate include Yulli Villanueva, David Butler, Erika Ulloa, Omar Espitia, and Brian O'Donnell.
How can I contact Mark Haase?
You can use AeroLeads to view verified contact signals for Mark Haase at Appgate, including work email, phone, and LinkedIn data when available.
What schools did Mark Haase attend?
Mark Haase holds Master Of Information And Data Science, Artificial Intelligence from Uc Berkeley School Of Information.
What skills is Mark Haase known for?
Mark Haase is listed with skills including Nist, Web 2.0, Security, Business Intelligence, Data Warehousing, Program Management, Requirements Analysis, and Html.
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