Find Senior network security engineer Jobs in Dublin, D

Senior Penetration Tester
Integrity360 —Dublin, County Dublin
- Hybrid work
- Computer Science
- Windows
- Java
Quick apply
Network Support Engineer, Aruba
Kanari —Dublin, County Dublin
- Engineering
- Microsoft Office
- Bachelor's degree
- Annual leave
7d
Sr. Lead Security Engineer - Google Cloud Platform
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- Computer Science
- Engineering
- Java
Data Steward, Re:Cycle Reverse Logistics
Re:Cycle Reverse Logistics Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- SQL
- AWS
Incident Management Engineer (Korean/English bilingual), Incident Detection and Response
Amazon Web Services EMEA SARL (Irish Branch) —Dublin, County Dublin
- Weekend availability
- Computer Science
- English
- AWS
Senior Manager of Security Engineering - AI/ML
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- DevOps
- Engineering
- AWS
3d
Senior Civil Engineer , Data Centre Design Engineering
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- AutoCAD
- Engineering
- Microsoft Office
IT Site Support Engineer | Cork
Philip Lee —DUBLIN 4, County Dublin
- Windows
- Computer networking
- SharePoint
Senior Full-Stack Developer
Citi —Dublin, County Dublin
- €71,440–€107,160 a year
- Full-time
- Hybrid work
- Computer Science
- DevOps
- Java
Senior Developer, Agentic AI Engineering
Workday —Dublin, County Dublin
- €86,400–€129,600 a year
- Full-time
- Computer Science
- Java
- Master's degree
Manager EMEA North, Infrastructure Energy Team
Amazon Energy Eoraip Limited —Dublin, County Dublin
- Full-time
- English
- Master's degree
- AWS
Sr. Technical Program Manager, Network Monitoring and Remediation
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Project management
Sr. Mechanical Engineer (CFD), Global Engineering Strategy
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- AutoCAD
- CAD
- Engineering
Capacity Planning Manager, CDP EMEA
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Leadership
- Analytics
Network Engineering Manager, EMEA
ByteDance —Dublin, County Dublin
- Computer Science
- English
- Bachelor's degree
Software Development Manager, Network Monitoring and Remediation
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Engineering
- AWS
- Team management
Senior Project Manager
EMR Integrated Solutions —Dunboyne, County Meath
- €65,487–€68,761 a year
- Full-time
- Hybrid work
- Engineering
- Project management
- Bachelor's degree
Quick apply
3d
Lead Software Engineer - Infrastructure Platforms
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- Engineering
- Java
- C++
7d
AI Workplace (M365) & Microsoft Purview Senior Engineer
BearingPoint Ireland —Dublin, County Dublin
- Hybrid work
- SharePoint
- AI
- Communication skills
EMEA Cabling Quality Mgr, Global Cabling Quality
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Bachelor's degree
- Electrical Engineering

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Senior Penetration Tester

Integrity360 -
Dublin, County Dublin

Quick apply

Job details

Qualifications

Computer Science
Visual Basic
C#
OSPF
Tutoring
UNIX
Quality management
Windows
Information security
Java
Firewall
C++
Project management
Presentation skills
C
Bachelor's degree
BGP
Scripting
Ruby
Telecommunication
MPLS
SIEM
ASP
Communication skills
Python
Network security
VPN

Full job description

About Us

Integrity360 is a leading independent cybersecurity and PCI specialist operating across Europe, Africa, the Caribbean, and North America. The company has office locations in Ireland, the UK, Bulgaria, Italy, Sweden, Spain, Lithuania, Ukraine, Africa, the Caribbean, and Canada, supported by six Security Operations Centres (SOCs) located in Dublin, Sofia, Madrid, Stockholm, Rome, and Cape Town.

With over 780 employees, including more than 585 dedicated cybersecurity professionals, Integrity360 delivers a full suite of professional, support, and managed security services. These span the complete cyber risk lifecycle, from identification and prevention to detection, response, and recovery. Integrity360 supports over 3000 mid-market and enterprise organisations across sectors including financial services, insurance, government, healthcare, retail, telecommunications, and utilities.

At Integrity360, people come first. We invest heavily in learning, development and progression, fostering a dynamic culture where innovation, collaboration and continuous growth are at the heart of what we do. If you're ready to take your cyber security career to the next level, we’d love to hear from you.

Role Overview

We’re looking for a Penetration Tester with at least 5 years of real-world professional experience, fully independent, with consultancy and tutoring skills and experience.

In this role, you’ll support and deliver testing projects (web, infra, cloud, AD, and mobile and not limited to), guided by experienced technical leaders. You’ll be involved in pre-sales activities, travelling onsite on customer environments and delivering high quality services.

Job Role / Responsibilities

As a Senior Security Tester, you will deliver advanced penetration testing and security assessments across a wide range of environments and technologies. You will also contribute to internal capability development, collaborate with other departments, and represent Integrity360 in client engagements and technical forums.

This role blends deep technical expertise with excellent communication and documentation skills.

Core Responsibilities:

Security Testing & Delivery

Perform advanced manual penetration tests and technical security assessments (web, mobile, infrastructure, cloud).
Execute Red Team or assumed breach engagements as part of a team or independently.
Identify, exploit, and document vulnerabilities in complex systems, clearly articulating risk and remediation to stakeholders.
Review application architectures and source code for security weaknesses.

Reporting & Communication

Produce high-quality technical reports and executive summaries tailored to various audiences.
Present findings to clients and internal stakeholders in a clear and professional manner.

Research & Innovation

Continuously research new vulnerabilities, attack techniques, and tools to stay ahead of evolving threats.
Contribute to the development of internal methodologies, tools, and automation scripts.

Internal Support & Mentoring

Act as a mentor for junior and mid-level testers, supporting their growth and development.
Support the testing team in delivery planning, documentation, and knowledge sharing.

Cross-Team Collaboration

Work closely with SDMs, Project Managers, and other technical teams to ensure smooth delivery.
Support Sales and Marketing teams with technical insights for proposals, events, or webinars when needed.

Desired Skills

Solid experience in information security
Industry experience working in Dev/Admin/Engineer field
Industry experience working in Information security field as a penetration tester
Development and/or source code review experience in C/C++, C#, VB.NET, ASP, PHP, Java, Python or Ruby
Strong Unix, Windows and networking security skills
Familiarity with general application and network security concepts
Excellent communication skills
Manual penetration testing experience above and beyond running automated tools
Experience developing custom scripts or tools used for vulnerability scanning and identification

In depth networking knowledge (ports, protocols, firewalls, routing, VPN, MPLS, BGP, OSPF, IPv6, TOR)
Understanding of development frameworks
Broad understanding of hosting /cloud environment
Broad understanding of SIEM & Defensive Technologies.
Understanding of Security Auditing tools
Ethical hacking experience
Intrusion prevention experience
Report writing experience
Presentation skills
Scripting/coding, sys admin or networking experience
Understanding of programming methodologies
Understanding of quality management and project management principles
Knowledge of advance cloud architecture

Certifications/Qualifications

Security Clearance or local vetting (as required by region or client sector)
Relevant certifications such as OSCP, OSCE, OSEP, CRTO, CREST, or equivalent
Bachelor’s degree in Computer Science, Cybersecurity, or related field (or equivalent hands-on experience)

#LI-PM2

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Refine Your Search

senior network security engineer jobs in dublin, d

Senior Penetration Tester

Network Support Engineer, Aruba

Sr. Lead Security Engineer - Google Cloud Platform

Data Steward, Re:Cycle Reverse Logistics

Incident Management Engineer (Korean/English bilingual), Incident Detection and Response

Senior Manager of Security Engineering - AI/ML

Senior Civil Engineer , Data Centre Design Engineering

IT Site Support Engineer | Cork

Senior Full-Stack Developer

Senior Developer, Agentic AI Engineering

Manager EMEA North, Infrastructure Energy Team

Sr. Technical Program Manager, Network Monitoring and Remediation

Sr. Mechanical Engineer (CFD), Global Engineering Strategy

Capacity Planning Manager, CDP EMEA

Network Engineering Manager, EMEA

Software Development Manager, Network Monitoring and Remediation

Senior Project Manager

Lead Software Engineer - Infrastructure Platforms

AI Workplace (M365) & Microsoft Purview Senior Engineer

EMEA Cabling Quality Mgr, Global Cabling Quality

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