AeroLeads people directory · profile

Mark Haase Email & Phone Number

Principal Software Engineer at Appgate
Location: Washington DC-Baltimore Area, United States, United States 10 work roles 3 schools
1 work email found @mitre.org 2 phones found area 571 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email m****@mitre.org
Direct phone (571) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Appgate
Role
Principal Software Engineer
Location
Washington DC-Baltimore Area, United States, United States
Company size
412 employees

Who is Mark Haase? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Mark Haase is listed as Principal Software Engineer at Appgate, a company with 412 employees, based in Washington DC-Baltimore Area, United States, 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

This section adds company-level context without repeating Mark Haase's masked contact details.

{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.

View email format View company profile Management contacts
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
Appgate
Principal Software Engineer
Washington, DC, US
Website
appgate.com
Employees
412
AeroLeads page
Company profile
View company profile Email format
10 roles

Mark Haase work experience

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

Principal Software Engineer

Appgate

Washington, DC, US

Chief Engineer, Center For Threat-Informed Defense

Current
Mitre

Mclean, VA, US

* 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

Mitre

Mclean, VA, US

* 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

Microsoft

Redmond, Washington, US

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)..

Jan 2015 - Jun 2020

Director

Lunarline, Inc

Ashburn, Virginia, US

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.

Apr 2012 - Dec 2014

Project Manager

Endeavor Systems, Inc.

College Park, Maryland, US

Managing a software team to build open source FISMA compliance software for federal, state, and municipal governments.

May 2009 - May 2012

Consultant

Endeavor Systems, Inc.

College Park, Maryland, US

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

Hewlett-Packard Services America

Houston, Texas, US

Business analyst, ETL analyst, ETL design/implementation, Business Intelligence, Data Warehousing, IT Consulting

Jan 2006 - Apr 2008

Web Developer

Community College Of Philadelphia

Philadelphia, PA, US

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 →

RV Rasmus Viero Rasmus Viero Colleague at AppgateGothenburg, Västra Götaland County, Sweden, Sweden View → AA Ana Abasheva Ana Abasheva Colleague at AppgateSpring, Texas, United States, United States View → AD Andres Daza Andres Daza Colleague at AppgateBogota, D.C., Capital District, Colombia, Colombia View → GR Gustavo Rivera Gustavo Rivera Colleague at AppgateBogota, D.C., Capital District, Colombia, Colombia View → SC Sebastian Camilo Cortes Salazar Sebastian Camilo Cortes Salazar Colleague at AppgateBogota, D.C., Capital District, Colombia, Colombia View → JD Jesus David Ramos Rengifo Jesus David Ramos Rengifo Colleague at AppgateBogota, D.C., Capital District, Colombia, Colombia View → LS Lazaro Sardinas Lazaro Sardinas Colleague at AppgateMiami-Fort Lauderdale Area, United States View → JM Jessica Muniz Jessica Muniz Colleague at AppgateMiami, Florida, United States, United States View → EC Eleftherios Chairetakis Eleftherios Chairetakis Colleague at AppgateGothenburg, Västra Götaland County, Sweden, Sweden View → MI Martha Isabel Rocha González Martha Isabel Rocha González Colleague at AppgateBogota, D.C., Capital District, Colombia, Colombia 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, 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 Rasmus Viero, Ana Abasheva, Andres Daza, Gustavo Rivera, and Sebastian Camilo Cortes Salazar.

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.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.