Find Senior java Jobs in Dublin, D

Penetration Tester
Integrity360 —Dublin, County Dublin
- Azure
- Computer Science
- English
Senior Network Engineer
Elwood Roberts —Dublin, County Dublin
- €350–€400 a day
- Full-time
- Java
- No degree
- Business
Quick apply
Senior Software Development Engineer
Autodesk —Dublin, County Dublin
- Full-time
- Java
- AWS
- Software development
Backend Software Engineer
Grouper —Dublin, County Dublin
- Hybrid work
- Azure
- Computer Science
- Java
Quick apply
Digital Assets Platform Senior Development Engineer (VP)
Citi —Dublin, County Dublin
- €93,280–€139,920 a year
- Full-time
- Hybrid work
- Computer Science
- Software troubleshooting
- DevOps
Senior Full-Stack Developer
G MASS —Dublin, County Dublin
- Hybrid work
- Computer Science
- Engineering
- Java
Quick apply
4d
Full-Stack Engineer
The Bank of New York Mellon Corporation —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Software troubleshooting
QA Automation Engineer, Charles River Development, Senior Associate
State Street —DUBLIN 2, County Dublin
- Full-time
- Azure
- DevOps
- Java
4d
Senior Software Engineer / Web Developer (AEM)
PlayStation Global —Dublin, County Dublin
- Computer Science
- Java
- Master's degree
Software Engineering (Full Stack), Charles River Development, Assistant Vice President
State Street —DUBLIN 2, County Dublin
- Full-time
- Azure
- Computer Science
- Java
5d
Sr. SDE, Workforce Solutions (WS)
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- System design
- Java
11d
Senior Developer Advocate
MongoDB —Dublin, County Dublin
- Remote
- Azure
- English
- Java
Software Engineer III
Guidewire Software —Dublin, County Dublin
- Full-time
- Azure
- System design
- Java
Senior Software Engineer - Pricing Analytics
Bloomberg —Dublin, County Dublin
- Computer Science
- Java
- No degree
Senior Software Development Engineer, AWS RDS SQL Server
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Java
13d
Senior Cloud Engineer
Sprinklr —Dublin, County Dublin
- Full-time
- Azure
- Management
- Social media management
- Annual leave
Senior Site Reliability engineer
Guidewire Software —Dublin, County Dublin
- Weekend availability
- Oracle
- Computer Science
- DevOps
Manager, Support Engineering
Wiz, Inc. —Dublin, County Dublin
- Remote
- Azure
- Computer Science
- Engineering
Quick apply
6d
Senior Software Engineer - Data Backend (Search Quality) (Remote - Ireland)
Yelp —Dublin, County Dublin
- Full-time
- Java
- Master's degree
- SQL
- Employee stock purchase plan
- Annual leave
Senior Penetration Tester
Integrity360 —Dublin, County Dublin
- Computer Science
- Windows
- Java

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Penetration Tester

Integrity360 -
Dublin, County Dublin

Apply Now

Job details

Qualifications

Azure
Computer Science
Financial auditing
Visual Basic
C#
UNIX
English
Windows
.NET
Information security
Java
Bash (Unix shell)
Firewall
AWS
C++
Presentation skills
C
Scripting
Burp Suite
Ruby
Telecommunication
Linux
ASP
Communication skills
Python
PowerShell
Active Directory
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

As a Penetration Tester, you will perform hands-on technical security testing across a range of environments and technologies, working on complex and high-value projects. You will be expected to perform advanced manual testing (not just automated scans), exploit vulnerabilities, and deliver clear, actionable reports to clients.

This role is ideal for someone who already has solid penetration testing experience and wants to take their technical skills to the next level, while also contributing to research and innovation within the team.

What You Already Bring

2+ year of practical penetration testing experience (in labs, personal projects, or professionally)
Strong understanding of core security concepts (e.g., OWASP Top 10, CVSS, MITRE ATT&CK)
Solid grasp of networking fundamentals, ports/protocols, basic Windows/Linux internals
Experience with common tools: Nmap, Burp Suite, Gobuster, Metasploit, BloodHound, etc.
Manual testing exposure — not just automated scans
Basic scripting or coding (e.g., Python, Bash, PowerShell)

Nice to Have (But Not Required)

Practical experience in one or more of:
Active Directory attacks
Cloud (AWS/Azure) testing basics
Social engineering
Source code review
Certifications such as OSCP or similar

What We Offer

A clear career path from Associate Mid-Level Senior

Red Team
Support for certifications, lab access, and personal development
Internal mentoring and hands-on training
Exposure to real client projects and cutting-edge engagements

Key Responsibilities

Conduct penetration tests and technical security assessments on:
- Web applications and APIs
- Mobile applications
- Network infrastructure (internal and external)
- Cloud and hybrid environments
- Social engineering scenarios (as needed)
- Consultancy
- Other offensive security services
Review system architecture and application designs for security weaknesses.
Exploit and escalate vulnerabilities to demonstrate real-world risk.
Document technical findings and produce high-quality reports with remediation guidance.
Stay current with the latest attack techniques, vulnerabilities, and tools.
Participate in internal knowledge sharing, tool development, and security research.
Support sales activities with technical insights when needed (e.g., scoping calls, workshops).

Required Skills / Experience

Hands-on experience as a penetration tester, with a proven track record of delivering quality security assessments.
Industry experience working in Dev/Admin/Engineer field
Industry experience working in the 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
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
Networking knowledge (ports, protocols, firewalls, routing, VPN)
Understanding of Security Auditing tools
Ethical hacking experience
Report writing experience
Presentation skills
Scripting/coding, sys admin or networking experience

Personal Specification

Urgent desire to learn with a passion for technology
Motivated by being at the forefront of technology, and pushing technology boundaries
Motivated by the thrill of being able to “break” systems
Willingness to work late when required
Willingness to travel when required, possibly abroad
Analytical and critical thinker
Good written English skills

Problem-solving skills
Efficient
Analytical
Persistence

Certifications/Qualifications

One of the industry-leading qualifications (OSCP, CyberScheme, CREST, OSCE, OSWP)

#LI-PM2

Apply Now

Refine Your Search

senior java jobs in dublin, d

Penetration Tester

Senior Network Engineer

Senior Software Development Engineer

Backend Software Engineer

Digital Assets Platform Senior Development Engineer (VP)

Senior Full-Stack Developer

Full-Stack Engineer

QA Automation Engineer, Charles River Development, Senior Associate

Senior Software Engineer / Web Developer (AEM)

Software Engineering (Full Stack), Charles River Development, Assistant Vice President

Sr. SDE, Workforce Solutions (WS)

Senior Developer Advocate

Software Engineer III

Senior Software Engineer - Pricing Analytics

Senior Software Development Engineer, AWS RDS SQL Server

Senior Cloud Engineer

Senior Site Reliability engineer

Manager, Support Engineering

Senior Software Engineer - Data Backend (Search Quality) (Remote - Ireland)

Senior Penetration Tester

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