John Flack
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John Flack Email & Phone Number

Retired at Self Employed
Location: Alexandria, Virginia, United States 5 work roles 2 schools
1 work email found @peraton.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@peraton.com
LinkedIn Profile matched
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Current company
Role
Retired
Location
Alexandria, Virginia, United States
Company size

Who is John Flack? Overview

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Quick answer

John Flack is listed as Retired at Self Employed, a company with 681323 employees, based in Alexandria, Virginia, United States. AeroLeads shows a work email signal at peraton.com and a matched LinkedIn profile for John Flack.

John Flack previously worked as Staff Engineer - Software at Peraton and Staff Engineer Software at Northrop Grumman. John Flack holds Master Of Science - Ms, Information Systems from George Mason University.

Company email context

Email format at Self Employed

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{first_initial}{last}@peraton.com
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AeroLeads found 1 current-domain work email signal for John Flack. Compare company email patterns before reaching out.

Profile bio

About John Flack

I often call myself a jack of all trades and master of a few in the IT world. By this, I mean that I have experience in the full realm of software design, development and operation. I'm the person to turn to when you need someone who knows all the pieces and how they fit together, OS, RDBMS, Application Server, network, design, development, and operations. And I can explain it, in clear written and spoken language, both on the technical level and for end users. But if you need a master of Relational Database Management Systems, or JEE Frameworks - that's me too.

Listed skills include Jdeveloper, Requirements Analysis, Software Development, Enterprise Architecture, and 15 others.

Current workplace

John Flack's current company

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Self Employed
Self Employed
Retired
Alexandria, VA, US
Employees
681323
AeroLeads page
5 roles

John Flack work experience

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

Staff Engineer - Software

Current

United States

Working on an application with backend in Spring, and UI in React-JS.Data for this application is currently stored in an Oracle database, but I am leading the effort to convert it to run against a PostgreSQL database.Started with a continuation of the Apex work I did for Northrop Grumman.

Feb 2021 - Present

Staff Engineer Software

United States

Working on a pair of related applications written in Oracle Application Express (APEX). Assisting with database design and data migration.Designed database changes for the next phase of an on-premises to AWS migration project. Wrote Java JDBC code to migrate from an Oracle database to MySQL on AWS. Some of this involved moving from Oracle nested table.

Apr 2019 - Jan 2021

Database Architect

Insight Policy Research

Arlington, VA 22209

DBA and database architect for a new SQL Server database for USDA. Assisted back-end developers with query design and Hibernate Entities.

Jan 2018 - Sep 2018

Software Architect

Washington D.C. Metro Area

Oracle RDBMS administration, design and development.Oracle ADF Application Development.Application Server (WebLogic, Glassfish, OC4J, Oracle HTTP Server) management and deployment.Linux server administrationLead developer and Software ArchitectJava, JEE and Java Server Faces (JSF) experience.

Apr 1989 - Dec 2017
2 education records

John Flack education

Master Of Science - Ms, Information Systems

The MSIS degree at GMU is a multi-disciplinary degree including courses in Information Systems, and some of the typical business courses.

FAQ

Frequently asked questions about John Flack

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

What company does John Flack work for?

John Flack works for Self Employed.

What is John Flack's role at Self Employed?

John Flack is listed as Retired at Self Employed.

What is John Flack's email address?

AeroLeads has found 1 work email signal at @peraton.com for John Flack at Self Employed.

Where is John Flack based?

John Flack is based in Alexandria, Virginia, United States while working with Self Employed.

What companies has John Flack worked for?

John Flack has worked for Self Employed, Peraton, Northrop Grumman, Insight Policy Research, and Synectics For Management Decisions, Inc..

How can I contact John Flack?

You can use AeroLeads to view verified contact signals for John Flack at Self Employed, including work email, phone, and LinkedIn data when available.

What schools did John Flack attend?

John Flack holds Master Of Science - Ms, Information Systems from George Mason University.

What skills is John Flack known for?

John Flack is listed with skills including Jdeveloper, Requirements Analysis, Software Development, Enterprise Architecture, Database Design, Data Warehousing, Sql, and Oracle.

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