Find Senior network security engineer Jobs in Dublin, D

Senior Penetration Tester
Integrity360 —Dublin, County Dublin
- Hybrid work
- Computer Science
- Windows
- Java
Quick apply
Sr. Lead Security Engineer - Google Cloud Platform
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- Computer Science
- Engineering
- Java
Senior TechOps Engineer
Uniphar PLC —DUBLIN 24, County Dublin
- Full-time
- Azure
- Computer Science
- Windows
Quick apply
8d
Senior Infrastructure Engineer - Dublin
Seapoint —Dublin, County Dublin
- Hybrid work
- DevOps
- AWS
- Linux
Quick apply
Senior AI Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- AWS
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
Sr Machine Learning Engineer
paypal —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- Engineering
- Annual leave
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 Manager of Security Engineering - AI/ML
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- DevOps
- Engineering
- AWS
3d
Senior Quality Engineer
Jabil Circuit —Dublin, County Dublin
- Full-time
- Engineering
- Microsoft Office
- Bachelor's degree
Senior Manager, Network Advisory UK & EU
paypal —Dublin, County Dublin
- Full-time
- Analysis skills
- Bachelor's degree
- Leadership
- Annual leave
Senior AI Engineer
Citco —Dublin, County Dublin
- Full-time
- AWS
- AI
- Communication skills
Senior Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Computer Science
- English
- Java
Senior Full-Stack Developer
Citi —Dublin, County Dublin
- €71,440–€107,160 a year
- Full-time
- Hybrid work
- Computer Science
- DevOps
- Java
Network Development Manager, Frontier Networking
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- Bachelor's degree
1d
Technology Infrastructure Assistant Vice President
Sumitomo Mitsui Banking Corporation —Dublin, County Dublin
- €57,000–€107,000 a year
- Weekend availability
- Hybrid work
- IT
- Communication skills
- Annual leave
Senior Reliability Maintenance Engineering Technician, RME
Amazon Ireland Support Services Limited —Dublin, County Dublin
- Weekend availability
- No degree
- Leadership
Senior Cloud & Kubernetes Engineer
InterSystems —Dublin, County Dublin
- Azure
- DevOps
- AWS
6d

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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

Sr. Lead Security Engineer - Google Cloud Platform

Senior TechOps Engineer

Senior Infrastructure Engineer - Dublin

Senior AI Engineer

Data Steward, Re:Cycle Reverse Logistics

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

Sr Machine Learning Engineer

Senior Civil Engineer , Data Centre Design Engineering

IT Site Support Engineer | Cork

Senior Manager of Security Engineering - AI/ML

Senior Quality Engineer

Senior Manager, Network Advisory UK & EU

Senior AI Engineer

Senior Software Engineer

Senior Full-Stack Developer

Network Development Manager, Frontier Networking

Technology Infrastructure Assistant Vice President

Senior Reliability Maintenance Engineering Technician, RME

Senior Cloud & Kubernetes Engineer

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