Find Junior cybersecurity Jobs in County Dublin

Senior Penetration Tester
Integrity360 —Dublin, County Dublin
- Computer Science
- Windows
- Java
Cyber Advisory BRS – Data Protection Senior Consultant
Grant Thornton —Dublin, County Dublin
- Full-time
- Bachelor's degree
- Mentoring
- AI
Senior Software Engineer
Semperis —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- Computer Science
- DevOps
Senior Embedded Systems Design Engineer
Eaton —Dublin, County Dublin
- Computer Science
- System design
- C++
14d
Senior Identity & Access Management (IAM) Engineer
Workday —Dublin, County Dublin
- €84,000–€126,000 a year
- Full-time
- Azure
- Computer Science
- Engineering
Technology Risk Assurance Consultant or Manager
RSM —Dublin, County Dublin
- Oracle
- Computer Science
- ERP systems
Quick apply
Forensic Services - Forensic Claims, Investigations and Audit Senior Manager - Deals
PwC —Dublin, County Dublin
- Full-time
- Accounting
- Recruiting
- Leadership
Forensic Accounting Manager - Deals - Forensic Claims, Investigations and Audit
PwC —Dublin, County Dublin
- Full-time
- Data analysis skills
- Analysis skills
- Accounting
Principal Digital Design Engineer (f/m/div)
Infineon Technologies AG —Dublin, County Dublin
- Full-time
- English
- Bachelor's degree
- Scripting
Lead Security Engineer
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- DevOps
- AWS
- Analysis skills
11d
Senior Technical Engineer
Schneider Electric —Dublin, County Dublin
- Full-time
- English
- Microsoft Office
- Continuous improvement
- Annual leave
- Employee assistance program
13d
Manager - Market Strategy - Future Markets
Eirgrid —Dublin, County Dublin
- Engineering
- Analysis skills
- Business
Quick apply
Senior Software Developer
Grouper —Dublin, County Dublin
- Full-time
- Hybrid work
- Java
- Mentoring
- Agile
Quick apply

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Cyber Advisory BRS – Data Protection Senior Consultant
Grant Thornton —Dublin, County Dublin
Working alongside our Partners, Managers and our outsourced DPO team, you will help organisations across financial services, public sector, healthcare, life…

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Senior Penetration Tester

Integrity360 -
Dublin, County Dublin

Apply Now

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.

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

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

#LI-PM2

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Refine Your Search

junior cybersecurity jobs in county dublin

Senior Penetration Tester

Cyber Advisory BRS – Data Protection Senior Consultant

Senior Software Engineer

Senior Embedded Systems Design Engineer

Senior Identity & Access Management (IAM) Engineer

Technology Risk Assurance Consultant or Manager

Forensic Services - Forensic Claims, Investigations and Audit Senior Manager - Deals

Forensic Accounting Manager - Deals - Forensic Claims, Investigations and Audit

Principal Digital Design Engineer (f/m/div)

Lead Security Engineer

Senior Technical Engineer

Manager - Market Strategy - Future Markets

Senior Software Developer

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