Find Staff security engineer Jobs in Dublin 12, D

Senior IT Security & Network Engineer / Architect 12-Month Contract | Dublin
Hadfield Green —DUBLIN 2, County Dublin
- Communication skills
- Python
Staff Software Engineer, Rollouts Sequencing
Google —Dublin, County Dublin
- €150,000–€153,000 a year
- Full-time
- Computer Science
- System design
- Java
1d
Site Reliability Engineer
RWS Group —Dublin, County Dublin
- Full-time
- Microsoft Excel
- AWS
- No degree
11h
Staff Technical Program Manager, Site Reliability Engineering
MongoDB —Dublin, County Dublin
- Remote
- Azure
- AWS
- SDLC
Software Engineer- Technical Lead
Analog Devices —Glasnevin, County Dublin
- Full-time
- Computer Science
- Master's degree
- Bachelor's degree
Senior Fire Investigator - Ireland
Jensen Hughes —Dublin, County Dublin
- Remote
- Research
- Analysis skills
- Communication skills
Network Development Manager, Network Fabric Engineering, Access Networks
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer science
- Management
- Computer Science
Staff Production Engineer
Crusoe —Dublin, County Dublin
- Full-time
- Computer Science
- Bachelor's degree
- No degree
- Life insurance
Quick apply
10d
Product Marketing - Agents - Government
ElevenLabs —Dublin, County Dublin
- Full-time
- Remote
Lead Cyber Security Engineer
Mater Private Network —Dublin, County Dublin
- Full-time
- Azure
- Windows
- Analysis skills
Quick apply
IT Systems Engineer - Active Directory
PlayStation Global —Dublin, County Dublin
- On call
- Computer Science
- Bachelor's degree
- No degree
Quick apply
3d
Staff Engineer, DevOps
LearnUpon —Dublin, County Dublin
- System design
- AWS
- Mentoring
- Annual leave
Staff Network Production Engineer, Network Ops
Crusoe —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- AWS
Quick apply
Manager Engineering Operations
Digital Realty —Dublin, County Dublin
- Full-time
- Team management
- In-person
- Communication skills
8d
Fire Engineer - Litigation
Jensen Hughes —Dublin, County Dublin
- Part-time
- Engineering
- Research
- Continuous improvement
- Annual leave
- Employee assistance program
Senior Electrical Engineer
IPS-Integrated Project Services —DUBLIN 12, County Dublin
- Full-time
- AutoCAD
- Engineering
- Bachelor's degree
Senior Staff Engineer
MongoDB —Dublin, County Dublin
- Hybrid work
- Azure
- Java
- AWS
Identity Security Engineer
Aer Lingus —Dublin, County Dublin
- Analysis skills
- No degree
- Communication skills
Senior Software Engineer
Salesforce —Dublin, County Dublin
- Full-time
- Salesforce
- Java
- AWS
Principal Electrical Engineer
AtkinsRéalis —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Project management
- Electrical Engineering

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Senior IT Security & Network Engineer / Architect 12-Month Contract | Dublin

Hadfield Green
DUBLIN 2, County Dublin

Apply Now

Job details

Fixed term

Qualifications

Ansible
Load balancing
LAN
Firewall
Network protocols
REST
WAN
Network architecture
TCP/IP
Communication skills
Python
VPN

Full job description

Hadfield Green are partnering on a fantastic opportunity for a Senior IT Security & Network Engineer / Architect to join a critical cyber security and network services environment on a 12-month contract.

This is a senior technical role for someone who can bridge Cyber Security, Network Operations, and Architecture, leading security-driven network initiatives from design through to delivery.

You’ll act as a key technical lead across complex network and security projects, helping shape resilient, scalable, and secure infrastructure that supports business continuity and operational excellence.

The role

Lead cyber security projects delivering network-related security initiatives across a critical 24×7 operations network.
Design and implement best-practice network architectures focused on scalability, resilience, and security.
Take ownership of enterprise datacentre network design, including ACI fabric, tenants, VRFs, bridge domains, and EPGs.
Configure and manage Cisco NGFW features including IPS, Security Intelligence, Portscan Detection, and Encrypted Visibility Engine.
Manage firewall lifecycle activity including upgrades, policy optimisation, and health monitoring.
Develop secure segmentation strategies aligned to Zero Trust principles.
Use automation tools such as Python, Ansible, and REST APIs.
Design and optimise application delivery using Citrix NetScaler, including load balancing, WAF, content switching, and traffic steering.
Support high-availability and disaster-recovery planning for critical services.
Collaborate with application and infrastructure teams to ensure performance, resilience, and secure traffic flows.
Provide third-line technical support and mentor second-line staff.
Monitor performance and support continuous improvement across key network services.

What we’re looking for

CCIE qualification essential
CISSP qualification advantageous
Strong knowledge of networking protocols and topologies
Experience in security architecture design and implementation
Excellent understanding of TCP/IP, Cisco firewalls, ACI networks, LAN, WAN, and VPN systems
Familiarity with Identity & Access Management (I&AM) and cyber security
Knowledge of threat management and vulnerability assessment
Good working knowledge of ITIL, change management, and continual improvement
Strong communication and documentation skills

What’s on offer

12-month contract
Senior-level technical ownership
A high-impact security and network architecture remit
The chance to work on critical infrastructure with real scale and visibility

If you’re a senior security and network professional looking for your next contract move, this is a standout opportunity.

Interested? Get in touch with Hadfield Green to find out more.

Apply Now

Refine Your Search

staff security engineer jobs in dublin 12, d

Senior IT Security & Network Engineer / Architect 12-Month Contract | Dublin

Staff Software Engineer, Rollouts Sequencing

Site Reliability Engineer

Staff Technical Program Manager, Site Reliability Engineering

Software Engineer- Technical Lead

Senior Fire Investigator - Ireland

Network Development Manager, Network Fabric Engineering, Access Networks

Staff Production Engineer

Product Marketing - Agents - Government

Lead Cyber Security Engineer

IT Systems Engineer - Active Directory

Staff Engineer, DevOps

Staff Network Production Engineer, Network Ops

Manager Engineering Operations

Fire Engineer - Litigation

Senior Electrical Engineer

Senior Staff Engineer

Identity Security Engineer

Senior Software Engineer

Principal Electrical Engineer

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