Colin O'Mahony
Sydney,NSW
Summary
Hardworking individual seeking a labouring role. Physically fit with experience working on sites in high-risk areas. Able to handle demanding work, long hours, and varied site tasks. Follows instructions, works safely, and gets the job done.
Overview
8
8
years of professional experience
3
3
Certifications
Work History
Project Engineer
NeoDyne
09.2023 - 08.2025
- Responsible for designing and deploying secure, segmented networks in industrial and critical infrastructure environments, including the deployment of network and security equipment on live gas pipeline sites and fully functioning factories.
- Work included OT segmentation, high-availability designs, and the execution of factory and site acceptance tests to support operational requirements.
- Completed IEC 62443–aligned risk assessments and supported NIS2 activities, with a focus on IT/OT segmentation, secure remote access, and zone-based architectures.
- Coordinated governance efforts across cybersecurity, IT, and OT teams to align technical implementation with policy, compliance requirements, and site operations.
- Ensured controls were practical, enforceable, and clearly documented.
- Worked directly with infrastructure teams, site engineers, and OEMs to define scope, assess risk posture, and ensure technical integration aligned with operational requirements.
- Facilitated workshops, technical reviews, and design walkthroughs.
Associate Engineer
Trellix
01.2021 - 08.2023
- Worked within a team, gaining broad exposure to security products and systems, with a primary focus on network and email security solutions.
- Troubleshot critical issues using Linux, CLI, shell scripting, log analysis, and databases as part of daily operations.
- Supported device and system configurations, including network settings, proxies, firewalls, exclusions, and logging.
- Investigated email security incidents, including false positives and false negatives, communicated findings to engineering teams, and contributed to updates of detection databases.
- Identified product and process weaknesses, collaborated with engineering and management to research and implement potential fixes, and provided detailed root cause analyses (RCAs).
Line cook / Cashier
McDonalds
11.2017 - 12.2021
Education
Bachelor of Science - IT Management
Munster Technological University
Cork City, Ireland11-2022
Skills
- On-site equipment installation
- Commissioning and live-site work
- ATEX site compliance
- Gas pipeline operations
- Network and security configuration
- FAT and SAT execution
- Fault finding and troubleshooting
- Safety awareness
- Risk management
- Reliability and punctuality
- Clear communication skills
- Team collaboration
- Practical problem solving
- Adaptability
Hobbies and Interests
- Played AFL with my university team for two seasons.
- Maintain an active lifestyle, regularly attending the gym and running.
- Passionate about music; collect records and attend festivals.
- Strong interest in cars and motorsports.
- Enjoy outdoor activities, including swimming, camping, and hiking.
References
Available on Request
Certification
ISA/IEC 62443 Fundamentals Specialist.
Timeline
Project Engineer
NeoDyne
09.2023 - 08.2025
Associate Engineer
Trellix
01.2021 - 08.2023
Line cook / Cashier
McDonalds
11.2017 - 12.2021
Bachelor of Science - IT Management
Munster Technological University