Patrick O'Connor
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Patrick O'Connor Email & Phone Number

Independent Security Researcher and Author at Freelance
Location: Ealing, England, United Kingdom 12 work roles 3 schools
1 work email found @amadeus.com LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email p****@amadeus.com
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Current company
Freelance
Role
Independent Security Researcher and Author
Location
Ealing, England, United Kingdom

Who is Patrick O'Connor? Overview

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Quick answer

Patrick O'Connor is listed as Independent Security Researcher and Author at Freelance, based in Ealing, England, United Kingdom. AeroLeads shows a work email signal at amadeus.com and a matched LinkedIn profile for Patrick O'Connor.

Patrick O'Connor previously worked as Independent Security Researcher & Author at Freelance and Principal Systems Analyst Programmer at Amadeus, London. Patrick O'Connor holds Bsc., Physics from University Of Kent At Canterbury.

Company email context

Email format at Freelance

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{first_initial}{last}@amadeus.com
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Profile bio

About Patrick O'Connor

Technical Cyber Security expert, interested in encryption, EPP/EDR and Threat hunting. Deep technical knowledge of security compliance, best practices and auditing. Extensive experience of low level programming and operating system internals. Occasionally speaks at industry events and writes on security topics.

Listed skills include Tpf, Mainframe, Security, Linux, and 46 others.

Current workplace

Patrick O'Connor's current company

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Freelance
Freelance
Independent Security Researcher and Author
England, United Kingdom
12 roles

Patrick O'Connor work experience

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

Independent Security Researcher And Author

Freelance

England, United Kingdom

Independent Security Researcher & Author

Current
Freelance

London, England, United Kingdom

Independent research on cyber security topics and ethical hacking.Regular contributor to British Computer Society on security topics.

Dec 2021 - Present

Principal Systems Analyst Programmer

London, United Kingdom

Specialist in EPP/EDR, encryption, IAM and security compliance. Spoke at industry conferences including Gartner, PCI and vendor-specific events.

Oct 2002 - Dec 2021

Consultant

Engaged to help integrate the BA TPF systems into the Amadeus infrastructure, involving OS modifications, large patching projects (PUTs) and complex operational coordination. Designed and wrote the main input message switch (The Blackbox) to intelligently direct all input to BA systems to either local processing on BA or remote on Amadeus. Allowing a.

Apr 2001 - Oct 2002

Consultant

Worked on a variety of projects in TPF including OS Upgrades, large patching projects (PUTs), maintenance and development of an assembly language and C trace/debugging tool (SST). This included coding support in assembler for tracing the C implementation in TPF.

May 1996 - Apr 2001

Consultant

Originally brought in as technical consultant with vast experience of Loosely Coupled and Tightly Coupled TPF systems. Helped design the Visa implementation of parallel processing for their two main US data centres providing card verification for Visa and other brands with 100% uptime. Then became the Project Manager responsible for the master planning and.

Oct 1994 - May 1996

Consultant

Worked as a technical consultant on Walgreen's TPF system. Modified their File Recoup package to optimise performance and reduced run time by 40%. General troubleshooting and support, including dump resolution, patching and operating system program maintenance. Acted as a consultant as they began working towards transitioning from TPF systems to Unix.

Oct 1993 - Sep 1994

Tpf Systems & Comms Manager (Consultant)

Manager of a combined TPF Systems and Comms team of 25 while Galileo migrated systems from Swindon, UK to Denver, USA. All usual departmental responsibilities along with preparing staff for the transition (for those moving) and helping those that would leave to manage their separation from the company.

Apr 1993 - Oct 1993

Tpf Coverage Manager (Consultant)

Manager of first level support team of 20 people. High volume transaction processing environment. System was in difficulties when I arrived and effective support was critical. Strict change controls applied and improved problem management structure implemented. System stabilised and hardware and software upgraded to provide more robust operating environment.

Apr 1992 - Mar 1993

Consultant

Worked with IBM Professional Services team In Fort Worth, TX to analyse and bid on a services contract with a large in-flight catering company. Joint Application Development (JAD) sessions with the company board and senior leaders to outline a complete restructuring of their IT infrastructure. Authored the successful proposal worth >$4M.Working in St..

Apr 1990 - Apr 1992

Consultant

Team leader and technical consultant. Using assembly language on the SABRE Reservation system. Led the Database team then Control Program (kernel) team during migration from ACP4 to TPF2.4 to TPF3.1. Teams of 8-10 working on OS-level coding in assembly language with debugging/dump analysis. Largest ever migration project in the airline industry at the time.

Oct 1986 - Apr 1990

Tpf Systems Team Leader

Programming in IBM Basic Assembly Language (BAL). Taught dump solving courses.Team Leader for system migrations and major system upgrades. Teams of 5-6 in a highly technical environment, low-level control program programming on mission-critical, high volume transaction processing systems.

Apr 1980 - Oct 1986
3 education records

Patrick O'Connor education

FAQ

Frequently asked questions about Patrick O'Connor

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

What company does Patrick O'Connor work for?

Patrick O'Connor works for Freelance.

What is Patrick O'Connor's role at Freelance?

Patrick O'Connor is listed as Independent Security Researcher and Author at Freelance.

What is Patrick O'Connor's email address?

AeroLeads has found 1 work email signal at @amadeus.com for Patrick O'Connor at Freelance.

Where is Patrick O'Connor based?

Patrick O'Connor is based in Ealing, England, United Kingdom while working with Freelance.

What companies has Patrick O'Connor worked for?

Patrick O'Connor has worked for Freelance, Amadeus, London, British Airways, London, Visa International, Foster City, Ca, and Walgreens, Chicago, Il.

How can I contact Patrick O'Connor?

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

What schools did Patrick O'Connor attend?

Patrick O'Connor holds Bsc., Physics from University Of Kent At Canterbury.

What skills is Patrick O'Connor known for?

Patrick O'Connor is listed with skills including Tpf, Mainframe, Security, Linux, Operating Systems, Unix, Itil, and Enterprise Architecture.

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