John O'Connor
AeroLeads people directory · profile

John O'Connor Email & Phone Number

Senior Technology Leader ► Driving IT Strategy, Innovation, Projects, Enterprise Architecture & Applications Development at Brennan
Location: The Rocks, New South Wales, Australia 10 work roles 1 school
1 work email found @colliers.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@colliers.com
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Brennan
Role
Senior Technology Leader ► Driving IT Strategy, Innovation, Projects, Enterprise Architecture & Applications Development
Location
The Rocks, New South Wales, Australia
Company size
443 employees

Who is John O'Connor? Overview

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

Quick answer

John O'Connor is listed as Senior Technology Leader ► Driving IT Strategy, Innovation, Projects, Enterprise Architecture & Applications Development at Brennan, a company with 443 employees, based in The Rocks, New South Wales, Australia. AeroLeads shows a work email signal at colliers.com and a matched LinkedIn profile for John O'Connor.

John O'Connor previously worked as Director Managed Operations and Technology at Brennan and Chief Information Officer at Brennan It. John O'Connor holds Computer Science from Institute Of Technology, Tallaght.

Company email context

Email format at Brennan

This section adds company-level context without repeating John O'Connor's masked contact details.

{first}.{last}@colliers.com
86% confidence

AeroLeads found 1 current-domain work email signal for John O'Connor. Compare company email patterns before reaching out.

View email format View company profile Management contacts
Profile bio

About John O'Connor

For over 25 years, I’ve worked in technology leading strategy, architecture, development, security, innovation and end-to-end project delivery across a diverse set of industries.

Listed skills include Team Leadership, Application Development, Application Frameworks, Vendor Management, and 45 others.

Current workplace

John O'Connor's current company

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

Brennan
Brennan
Senior Technology Leader ► Driving IT Strategy, Innovation, Projects, Enterprise Architecture & Applications Development
Website
brennanit.com.au
Employees
443
AeroLeads page
Company profile
View company profile Email format
10 roles

John O'Connor work experience

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

Director Managed Operations And Technology

Current
Brennan

Sydney, New South Wales, Australia

Jun 2024 - Present

Chief Information Officer

Brennan It

Sydney, New South Wales, Australia

Aug 2023 - Jun 2024

Cio Advisor

Ausgrid

Sydney, New South Wales, Australia

Feb 2023 - Aug 2023

Chief Information Officer

Pacific Smiles Group

Sydney, New South Wales, Australia

Jun 2020 - Jan 2023

Technology Consultant (Data, Bi & Finance Systems)

Colliers International

Sydney, Australia

May 2019 - Apr 2020

Senior Manager, Group Bi Systems

Westfield

Sydney, Australia

Aug 2006 - Jul 2011

Senior Developer & Presales Support

Csk Software

Dublin, Frankfurt, Singapore, New York

Sep 1999 - Oct 2004

Junior Developer

Computer Control Solutions

Dublin Ireland

Jun 1997 - Aug 1999
Team & coworkers

Colleagues at Brennan

Other employees you can reach at brennanit.com.au. View company contacts for 443 employees →

MP Malinda Perera Malinda Perera Colleague at Brennan Sri Lanka, Sri Lanka View → AD Amol Deshmukh Amol Deshmukh Colleague at Brennan Maharashtra, India, India View → DP Dan Popa Dan Popa Colleague at Brennan Greater Melbourne Area, Australia View → DJ Deven Jadhav Deven Jadhav Colleague at Brennan Thane, Maharashtra, India, India View → RJ Richard Jamison Richard Jamison Colleague at Brennan Greater Sydney Area, Australia View → NS Neda Sharifi Neda Sharifi Colleague at Brennan Greater Brisbane Area, Australia View → MG Michael Grujovski Michael Grujovski Colleague at Brennan Greater Newcastle Area, Australia View → AP Aniket Pandey Aniket Pandey Colleague at Brennan Mumbai, Maharashtra, India, India View → SP Sachithra Perera Sachithra Perera Colleague at Brennan Gampaha, Western Province, Sri Lanka, Sri Lanka View → KY Karen Yolande Nagahawatte,Fcma,Cgma (Uk) Karen Yolande Nagahawatte,Fcma,Cgma (Uk) Colleague at Brennan Sri Lanka, Sri Lanka View →
1 education record

John O'Connor education

FAQ

Frequently asked questions about John O'Connor

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

What company does John O'Connor work for?

John O'Connor works for Brennan.

What is John O'Connor's role at Brennan?

John O'Connor is listed as Senior Technology Leader ► Driving IT Strategy, Innovation, Projects, Enterprise Architecture & Applications Development at Brennan.

What is John O'Connor's email address?

AeroLeads has found 1 work email signal at @colliers.com for John O'Connor at Brennan.

Where is John O'Connor based?

John O'Connor is based in The Rocks, New South Wales, Australia while working with Brennan.

What companies has John O'Connor worked for?

John O'Connor has worked for Brennan, Brennan It, Ausgrid, Pacific Smiles Group, and Colliers International.

Who are John O'Connor's colleagues at Brennan?

John O'Connor's colleagues at Brennan include Malinda Perera, Amol Deshmukh, Dan Popa, Deven Jadhav, and Richard Jamison.

How can I contact John O'Connor?

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

What schools did John O'Connor attend?

John O'Connor holds Computer Science from Institute Of Technology, Tallaght.

What skills is John O'Connor known for?

John O'Connor is listed with skills including Team Leadership, Application Development, Application Frameworks, Vendor Management, P&L Budget Management, Capital Budget Manangement, Compliance And Risk Management, and Itil.

Find 750M verified contacts

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

People with similar names

Check these profiles if this is not the John O'Connor you were looking for.

John O'Connor
John O'Connor
People & Capability Business Partner At Kmart Australia Limited
Melbourne, Vic
John O'CONNOR
John O'CONNOR
25Years Global It Sales Executive. Experienced In Saas, Services & Hardware. Start-Ups To Majors. Successfully Launched Payment System For Usa Cannabis Market And Saas Ppm Globally.
Collingwood, Vic
View similar profiles