Jon O'Brien
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Jon O'Brien Email & Phone Number

Senior Windows Developer at ManTech
Location: Falls Church, Virginia, United States 11 work roles 3 schools
2 work emails found @mantech.com 3 phones found area 978 and 585 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 3 phones

Work email j****@mantech.com
Direct phone (978) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
ManTech
Role
Senior Windows Developer
Location
Falls Church, Virginia, United States
Company size
10437 employees

Who is Jon O'Brien? Overview

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Quick answer

Jon O'Brien is listed as Senior Windows Developer at ManTech, a company with 10437 employees, based in Falls Church, Virginia, United States. AeroLeads shows a work email signal at mantech.com, phone signal with area code 978, 585, and a matched LinkedIn profile for Jon O'Brien.

Jon O'Brien previously worked as Cyber Engineering Lead at Mantech and Senior CNO Developer at Mantech. Jon O'Brien holds Master'S Degree, Computer Science from Georgia Institute Of Technology.

Company email context

Email format at ManTech

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*@mantech.com
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AeroLeads found 2 current-domain work email signals for Jon O'Brien. Compare company email patterns before reaching out.

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Profile bio

About Jon O'Brien

Experienced Software Engineer skilled in Python, and C, as well as Vulnerability Research and Exploit Development. Electrical Engineering Minor. Active Secret Clearance.

Listed skills include Python, Java, C, Programming, and 4 others.

Current workplace

Jon O'Brien's current company

Company context helps verify the profile and gives searchers a useful next step.

ManTech
Mantech
Senior Windows Developer
Waltham, MA, US
Website
mantech.com
Employees
10437
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Company profile
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11 roles

Jon O'Brien work experience

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

Senior Windows Developer

Mantech

Waltham, MA, US

Cyber Engineering Lead

Current
Mantech

Herndon, Virginia, US

Mar 2023 - Present

Senior Cno Developer

Current
Mantech

Herndon, Virginia, US

Jan 2022 - Present

Windows Cno Developer

Mantech

Herndon, Virginia, US

Apr 2021 - Jan 2022

Linux Cno Developer/Researcher

Mantech

Herndon, Virginia, US

Jul 2018 - Apr 2021

Linux Developer/Researcher

Mantech

Herndon, Virginia, US

Researched and developed software for various Linux platforms. Assisted team with tasks related to mission-critical software solutions. These tasks included, but were not limited to:- Researched Linux Boot Process- Researched ELF file format- Researched dynamic linking/loading of ELF executables- Implemented various techniques to interact with Shared.

May 2017 - Jul 2018

Windows Kernel Developer

Mantech

Herndon, Virginia, US

Developed and tested Windows Kernel Driver necessary to enhance software and better utilize the software systems. Assisted team with research and debugging of issues faced by mission-critical software. Researched various features in modern browsers and assisted team with creating and automating debugging methods.

May 2016 - May 2017

Software Engineering Team Lead

Pfp Cybersecurity (Power Fingerprinting)

Vienna, VA, US

Completed and delivered software product to customers. Automated build process while making cross-platform compatible solutions. Further debugged and tested various software tools and assisted team in the development and moved forward with the streamlining of their development and production environments.

Aug 2016 - May 2017

Teaching Assistant

Rochester Institute Of Technology

Rochester, NY, US

Teach Students various principles involved in Software Engineering, including best practices, the development lifecycle, team projects, how communication works in industry.

Aug 2014 - Jan 2015

Teaching Assistant

Johns Hopkins University, Center For Talented Youth

Baltimore, MD, US

Introduction to Robotics Course – taught RobotC and LEGO NXTG to students, instructed them in how to complete a wide variety of challenges within the course. Taught students engineering design principles and explained ways to improve their engineering and coding mindsets. I peaked many student's interests in coding and engineering fields and encouraged.

Jun 2014 - Aug 2014
Team & coworkers

Colleagues at ManTech

Other employees you can reach at mantech.com. View company contacts for 10437 employees →

AF Adam Fenno Adam Fenno Colleague at MantechGreater Tampa Bay Area, United States View → YE Yvonne Eibel Yvonne Eibel Colleague at MantechHattersheim, Hesse, Germany, Germany View → MH Matthew Hale Matthew Hale Colleague at MantechWashington DC-Baltimore Area, United States, United States View → SJ S Johnson S Johnson Colleague at MantechKing George, Virginia, United States, United States View → BB Brad Bogard Brad Bogard Colleague at MantechOlney Mill, Maryland, United States, United States View → RB Rick Bly Rick Bly Colleague at MantechVirginia Beach, Virginia, United States, United States View → DA Donatello Angelina Donatello Angelina Colleague at MantechUnited States, United States View → JF John Fitchett John Fitchett Colleague at MantechWashington DC-Baltimore Area, United States View → CK Conner Kincaid Conner Kincaid Colleague at MantechFairmont, West Virginia, United States, United States View → C" Charles Charles "Wayne" Stuffle Colleague at MantechEvansville, Indiana, United States, United States View →
3 education records

Jon O'Brien education

Master'S Degree, Computer Science

Georgia Institute Of Technology

Bs Software Engineering, Software Engineering

Rochester Institute Of Technology

Minor, Electrical Engineering

Rochester Institute Of Technology
FAQ

Frequently asked questions about Jon O'Brien

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

What company does Jon O'Brien work for?

Jon O'Brien works for ManTech.

What is Jon O'Brien's role at ManTech?

Jon O'Brien is listed as Senior Windows Developer at ManTech.

What is Jon O'Brien's email address?

AeroLeads has found 2 work email signals at @mantech.com for Jon O'Brien at ManTech.

What is Jon O'Brien's phone number?

AeroLeads has found 3 phone signal(s) with area code 978, 585 for Jon O'Brien at ManTech.

Where is Jon O'Brien based?

Jon O'Brien is based in Falls Church, Virginia, United States while working with ManTech.

What companies has Jon O'Brien worked for?

Jon O'Brien has worked for Mantech, Pfp Cybersecurity (Power Fingerprinting), Rochester Institute Of Technology, and Johns Hopkins University, Center For Talented Youth.

Who are Jon O'Brien's colleagues at ManTech?

Jon O'Brien's colleagues at ManTech include Adam Fenno, Yvonne Eibel, Matthew Hale, S Johnson, and Brad Bogard.

How can I contact Jon O'Brien?

You can use AeroLeads to view verified contact signals for Jon O'Brien at ManTech, including work email, phone, and LinkedIn data when available.

What schools did Jon O'Brien attend?

Jon O'Brien holds Master'S Degree, Computer Science from Georgia Institute Of Technology.

What skills is Jon O'Brien known for?

Jon O'Brien is listed with skills including Python, Java, C, Programming, Git, Css, Javascript, and Agile Methodologies.

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