Find Experienced security systems engineer Jobs in Dublin, D

Senior MSP Engineer
Diacom Computer and Telephony Limited —Park West, County Dublin
- On call
- Hybrid work
- Computer Science
- Windows
- Bachelor's degree
Quick apply
Application Security Engineer
Millennium Management —Dublin, County Dublin
- Azure
- Computer Science
- Java
IT Support Engineer (Tier 2)
Viatel Technology Group —Dublin, County Dublin
- Azure
- Windows
- Analysis skills
- Annual leave
1d
IT Support Engineer (Tier 2)
Viatel —Dublin, County Dublin
- Azure
- Windows
- Analysis skills
- Annual leave
1d
Software Development Engineer, AWS Security
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- Bachelor's degree
Software Development Engineer - Product Development Tools
Workday —Dublin, County Dublin
- €72,000–€108,000 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- Master's degree
5d
QA Lead
ES Talent Management —Dublin, County Dublin
- €50,000–€60,000 a year
- Full-time
- Azure
- Computer Science
Quick apply
OFCI Project Manager
Winthrop Technologies —Dublin, County Dublin
- Full-time
- Bachelor's degree
- Leadership
Quick apply
Cloud Network Engineer
Microsoft —Dublin, County Dublin
- €62,400–€104,200 a year
- Full-time
- Azure
- Computer Science
- No degree
- Work from home
1d
Senior Full Stack Engineer
Optum —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- Java
1d
Senior Software Development Engineer - Product Development Tools
Workday —Dublin, County Dublin
- €86,400–€129,600 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- Master's degree
5d
Senior Software Development Engineer
Foxit —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- Computer Science
- System design
Quick apply
9d
Staff Insights Applications Engineer
Analog Devices —Glasnevin, County Dublin
- Full-time
- Computer Science
- Master's degree
- C++
Software Development Engineer - Lambda, AWS Lambda Control Plane
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- Bachelor's degree
5d
Interface Manager
AECOM —Dublin, County Dublin
- Full-time
- Project management
- Contracts
- Construction
Engineering Manager (m/f/d)
Affinidi —Dublin, County Dublin
- Remote
- AWS
- JavaScript
- Leadership
Quick apply
9d
C++ Backend Engineer
Elwood Roberts —Dublin, County Dublin
- Full-time
- AWS
- C++
- JavaScript
Quick apply
Mid-Level Backend Software Engineer
Teckro Limited —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer Science
- System design
- Hotel
- Gym membership
- Life insurance
Quick apply
FS Technology Consulting - AI and Data - Data Engineer - Senior Consultant - Dublin
EY —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- Azure
- Computer Science
- Java
- Gym membership
Principal OT Cybersecurity Consultant
Jacobs —Dublin, County Dublin
- Hybrid work
- IT
- Communication skills

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Senior MSP Engineer

Diacom Computer and Telephony Limited
Park West, County Dublin

Quick apply

Job details

Qualifications

Microsoft Windows Server
Computer Science
Windows
Sonicwall
Bachelor's degree
IDS
Mentoring
Scripting
Root cause analysis
Network engineering
Communication skills
Python
PowerShell
Intune
Information Technology
VPN

Full job description

About the role

Diacom is seeking a Senior MSP Engineer to lead the delivery, support, and continuous improvement of managed IT, network, and security services across a diverse customer base.

This is a senior technical role for an experienced engineer who enjoys solving complex infrastructure challenges, leading customer-facing projects, and helping shape high-performing managed services environments. You will act as a senior escalation point, drive service quality and operational excellence, and play a key role in the strategic growth of our managed services portfolio.

You will also mentor junior engineers, contribute to service development, and act as a trusted technical advisor to customers.

What you’ll do

Managed services delivery and support

Design, implement, and support managed IT, network, and security solutions across customer environments
Act as the Level 3 escalation point for complex technical issues across infrastructure, networking, and security platforms
Maintain high availability, performance, and security across managed environments
Deliver proactive maintenance, optimisation, and continuous improvement across supported systems

IT, network, and security engineering
You will deploy, configure, and support solutions including:

Microsoft 365, Windows Server, and Windows Client
Next-generation firewalls including SonicWall, Palo Alto, and Fortinet
Network switching, wireless, segmentation, VPNs, and high-availability architectures

You will also:

Manage firewall policies, threat prevention tuning, and security hardening
Design and implement secure network architectures aligned to operational and customer requirements

Security and compliance

Implement and manage firewall rulebases, IPS/IDS, threat protection, and secure remote access
Apply network segmentation and Zero Trust security principles
Perform security assessments and support remediation of vulnerabilities
Ensure customer environments align with current security best practices and compliance requirements
Apply best practices across Microsoft Intune, Microsoft 365, Windows, and Windows Server

Troubleshooting and escalation

Diagnose and resolve complex issues across customer infrastructure
Perform root cause analysis and implement preventative improvements
Provide expert escalation support and technical guidance to Level 1 and Level 2 engineers

Projects and service improvement

Lead the technical delivery of upgrades, migrations, and new deployments
Work with internal teams to deliver integrated customer solutions
Contribute to the development and enhancement of managed service offerings

Documentation and reporting

Maintain accurate technical documentation across customer environments
Produce reports on performance, incidents, and service delivery metrics
Ensure all work is logged and tracked in line with internal processes

Leadership and collaboration

Mentor junior engineers and support knowledge sharing across the team
Work closely with account managers and customers to align technical solutions with business outcomes
Build trusted relationships with customers as a senior technical advisor

What we’re looking for

Required

Bachelor’s degree in Information Technology, Computer Science, or a related discipline — or equivalent practical experience
7–9 years’ experience in a managed services, infrastructure, or network engineering environment
Strong expertise across networking and security technologies
Proven experience supporting complex customer environments
Advanced troubleshooting, analytical, and problem-solving capability
Strong communication skills with experience working directly with customers

Preferred

Vendor certifications such as Palo Alto PCNSE, Fortinet NSE, or Microsoft certifications
Strong understanding of modern IT infrastructure and managed services delivery
Experience with RMM platforms and Microsoft Intune
Scripting or automation experience using Python or PowerShell
Experience leading technical projects and mentoring engineers
Ability to produce clear, high-quality technical documentation and operational standards

Working environment

Hybrid role with time split between office and customer sites
Regular customer site visits will be required
Participation in an on-call rotation and occasional after-hours support

Why join us?

At Diacom, you’ll work with a broad range of customers, modern infrastructure technologies, and a collaborative technical team that values quality engineering, customer outcomes, and continuous improvement. This is an opportunity to take ownership of complex environments while helping shape the future of our managed services offering.

Quick apply

Refine Your Search

experienced security systems engineer jobs in dublin, d

Senior MSP Engineer

Application Security Engineer

IT Support Engineer (Tier 2)

IT Support Engineer (Tier 2)

Software Development Engineer, AWS Security

Software Development Engineer - Product Development Tools

QA Lead

OFCI Project Manager

Cloud Network Engineer

Senior Full Stack Engineer

Senior Software Development Engineer - Product Development Tools

Senior Software Development Engineer

Staff Insights Applications Engineer

Software Development Engineer - Lambda, AWS Lambda Control Plane

Interface Manager

Engineering Manager (m/f/d)

C++ Backend Engineer

Mid-Level Backend Software Engineer

FS Technology Consulting - AI and Data - Data Engineer - Senior Consultant - Dublin

Principal OT Cybersecurity Consultant

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