Find Senior java Jobs in Dublin, D

Penetration Tester
Integrity360 —Dublin, County Dublin
- Azure
- Computer Science
- Windows
Senior Software Development Engineer, Aurora MySQL,Aurora PostgreSQL
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Microsoft Excel
- Computer Science
- Java
Senior Android Developer - Nenagh based
Expleo —Dublin, County Dublin
- Azure
- Computer Science
- Java
Principal Architect (Remote – Ireland)
Hadfield Green —DUBLIN 2, County Dublin
- Remote
- System design
- Java
- Leadership
Lead Software Engineer
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- Oracle
- Java
- SQL
1d
Senior Success Guide - Spanish / German/ Portuguese - Marketing Cloud
Salesforce —Dublin, County Dublin
- Full-time
- Spanish
- Salesforce
- Java
Database Software Engineer
eBay Inc. —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Java
6d
Lead Agentic Engineer
Marsh —Dublin, County Dublin
- Full-time
- Java
- Master's degree
- Presentation skills
QA Engineer
Grouper —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer Science
- Java
- Bachelor's degree
Quick apply
FS Technology Consulting - Engineering Lead, Features Team- Director - Dublin
EY —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- Azure
- Salesforce
- System design
- Gym membership
Software Architect – 12-Month Rolling Contract
Hadfield Green —DUBLIN 2, County Dublin
- Hybrid work
- Java
- AWS
- Communication skills
Sr Backend Engineer - GraphQL Federation
eBay Inc. —Dublin, County Dublin
- Full-time
- System design
- Java
- JavaScript
6d
Principal Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- Java
- AWS
Quality Assurance, AVP
State Street —DUBLIN 2, County Dublin
- Full-time
- Azure
- Oracle
- Computer Science
Principal MTS– Distributed Data Platform
eBay Inc. —Dublin, County Dublin
- Full-time
- Java
- AI
- Communication skills
Sr.Quality Assurance Engineer (European Language Expert), Alexa Global Quality Team
Amazon Development Centre Ireland Limited - D94 —Dublin, County Dublin
- Full-time
- Java
- Master's degree
- C++
Database Engineer, AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Java
Sr. Database Engineer, AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Java
- SQL
6d
Manager, Support Engineering
Wiz, Inc. —Dublin, County Dublin
- Remote
- Azure
- Computer Science
- Engineering
Quick apply
Sr. SDE, Amazon Email Services
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- Java
- AWS

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Penetration Tester

Integrity360 -
Dublin, County Dublin

Apply Now

Job details

Qualifications

Azure
Computer Science
Financial auditing
Visual Basic
C#
UNIX
Windows
.NET
Information security
Java
Firewall
AWS
C++
Presentation skills
C
Scripting
Ruby
Telecommunication
ASP
Communication skills
Python
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.

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

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

Certifications/Qualifications

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

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

#LI-PM2

Apply Now

Refine Your Search

senior java jobs in dublin, d

Penetration Tester

Senior Software Development Engineer, Aurora MySQL,Aurora PostgreSQL

Senior Android Developer - Nenagh based

Principal Architect (Remote – Ireland)

Lead Software Engineer

Senior Success Guide - Spanish / German/ Portuguese - Marketing Cloud

Database Software Engineer

Lead Agentic Engineer

QA Engineer

FS Technology Consulting - Engineering Lead, Features Team- Director - Dublin

Software Architect – 12-Month Rolling Contract

Sr Backend Engineer - GraphQL Federation

Principal Software Engineer

Quality Assurance, AVP

Principal MTS– Distributed Data Platform

Sr.Quality Assurance Engineer (European Language Expert), Alexa Global Quality Team

Database Engineer, AWS DMS

Sr. Database Engineer, AWS DMS

Manager, Support Engineering

Sr. SDE, Amazon Email Services

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