Find It Jobs in Dublin 24, D

Level 3 Senior Network Engineer (Cisco ACI required)
ICON Plc —Dublin, County Dublin
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PwC —Dublin, County Dublin
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FS Technology Consulting - Senior Solution Architect - Senior Manager/Director - Dublin
EY —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- Computer Science
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Databricks Solution Architect – Financial Crime & Banking
EXL Service —Dublin, County Dublin
- Full-time
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- Azure
- Computer Science
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Senior IT Security & Network Engineer / Architect 12-Month Contract | Dublin
Hadfield Green —DUBLIN 2, County Dublin
- Communication skills
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German-Speaking Senior Technical Support Engineer – Elastic Cloud Storage
Dell Technologies —Dublin, County Dublin
- Full-time
- Customer service
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- Analysis skills
Technical Support Manager
New Relic —Dublin, County Dublin
- On call
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7h
Platform and Solution Architect
Fresenius Medical Care —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- English
- AWS
Microsoft Business Central Solutions Architect - contract
TEKenable —Dublin, County Dublin
- Monday to Friday
- Hybrid work
- ERP systems
- Analysis skills
- Bachelor's degree
- Work from home
Quick apply
7d
Partner Solutions Architect
Nebius —Dublin, County Dublin
- Remote
- Azure
- AWS
- AI
Quick apply
Technical Support Engineer French or German Speaker - Sales Cloud
Salesforce —Dublin, County Dublin
- Full-time
- Spanish
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- English
Technical Support Engineer - German or French
Salesforce —Dublin, County Dublin
- Full-time
1d
Senior Solution Architect
NTT Ltd —Dublin, County Dublin
- Hybrid work
- Communication skills
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Technical Support Engineer (French speaking)
Salesforce —Dublin, County Dublin
- Full-time
- Azure
- Oracle
- Computer Science
10h
Senior Solution Architect - Engine by Starling
Starling —Dublin, County Dublin
- Full-time
- Hybrid work
- System design
- Communication skills
- Banking
- Life insurance
Quick apply
Customer Solutions Architect, Manager
Fivetran —Dublin, County Dublin
- Full-time
- Remote
- Leadership
- Annual leave
- Sick pay
Quick apply
Service Driver HGV - Shred-It
Stericycle —Dublin, County Dublin
- Heavy lifting
- Customer service
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Oracle Cloud Financials Solution Architect, Hybrid
Deloitte —Dublin, County Dublin
- €90,000 a year
- Full-time
- Hybrid work
- Oracle
- Business development
- Leadership
Consulting Solutions Architect
TransAct, a Presidio Company —Dublin, County Dublin
- Hybrid work
- Sales
- IT
- AI
1d
Solution Architect ROI
Codec —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- Oracle
- No degree
Quick apply
13d

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Level 3 Senior Network Engineer (Cisco ACI required)

ICON Plc -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

Azure
Ansible
Load balancing
OSPF
Firewall
AWS
Analysis skills
BGP
WAN
DNS
Solarwinds
Business requirements
Communication skills
Python
Network security
VPN

Full job description

Principal Engineer II - Office Hybrid in Dublin, Ireland

ICON is a global healthcare intelligence and clinical research organisation united by a mission to bring new medicines and treatments to patients faster.

As a values-driven organisation, integrity, collaboration, agility, and inclusion are at the heart of how we work and interact with each other, customers, patients and suppliers.

Role Summary

The Level 3 Senior Network Engineer (Principal Engineer II) serves as the highest technical escalation point within the Global Network Operations team. This role is responsible for providing technical leadership, resolving complex network issues, supporting global infrastructure projects, and ensuring the stability, security, and availability of the enterprise network.

The ideal candidate should have 10+ years of hands-on enterprise networking experience, with strong expertise in Cisco ACI, Fortinet Firewalls, NetScaler/F5 Load Balancers, SD-WAN technologies (preferably CATO), enterprise routing and switching, and cloud networking. The role requires a strong balance of technical expertise, operational excellence, and project delivery within a global enterprise environment.

This is an Office Hybrid role requiring 60% office attendance in our HQ in Leopardstown, Dublin 18.

Key Responsibilities

1. Technical Leadership & Escalation

Act as the highest technical escalation point for critical network incidents and complex infrastructure issues.

Lead troubleshooting across multi-vendor enterprise network environments.

Perform root cause analysis (RCA) for major incidents and implement permanent corrective actions.

Provide technical guidance and mentorship to Level 1 and Level 2 engineers.

Participate in Major Incident Management (MIM) calls and lead technical recovery efforts.

2. Network Operations

Ensure the availability, stability, and performance of the global network infrastructure.

Support BAU operations involving routing, switching, firewalls, SD-WAN, load balancers, VPNs, DNS, and cloud networking.

Identify recurring operational issues and implement proactive improvements to reduce incidents.

Perform advanced troubleshooting across on-premises and cloud network environments.

3. Infrastructure & Project Delivery

Lead network implementation activities for global infrastructure projects.

Design, review, and implement network solutions in accordance with enterprise standards.

Support datacenter migrations, office deployments, cloud connectivity, and technology refresh initiatives.

Review implementation plans and provide technical approval for high-risk network changes.

Support mergers, acquisitions, and global expansion initiatives from a networking perspective.

4. Enterprise Network Technologies

Provide technical ownership, administration, and support for:

Cisco Core Networking (ACI required)

Cisco Meraki and Cisco ISE - preferable to have

Fortinet Firewalls

NetScaler/F5 Load Balancers

SASE platforms (CATO preferred)

BGP, OSPF, and enterprise routing

Network segmentation and micro-segmentation

Azure and AWS networking

Ability to automate Network tasks using scripts such as Ansible, Python, Power shell

Network performance analysis and packet capture (Wireshark/TCPDump)

Network monitoring platforms such as ThousandEyes, SolarWinds, Site24x7, or equivalent

5. Security & Compliance

Ensure network infrastructure complies with enterprise security standards and industry best practices.

Review and approve firewall policies, NAT rules, VPN configurations, and network segmentation.

Support vulnerability remediation activities and security audits.

Work closely with Cyber Security teams during incident investigations.

Implement secure network designs for new business requirements.

Skills & Qualifications

Experience

Minimum 10+ years of enterprise networking experience.

Strong experience supporting large-scale global network environments.

Experience working in 24x7 operations supporting mission-critical infrastructure.

Proven experience leading major incident resolution and infrastructure projects.

Soft Skills

Strong analytical and problem-solving skills.

Ability to lead technical discussions and major incident calls.

Excellent communication and stakeholder management skills.

Ability to manage multiple priorities in a fast-paced global environment.

Strong documentation and presentation skills.

Self-motivated with the ability to work independently and mentor junior engineers.

Preferred Certifications

CCNP Enterprise or CCIE

Fortinet NSE 7/NSE 8 or FCSS Network Security

Citrix NetScaler Certification

CATO Certified Professional

AWS or Azure Networking Certification

ITIL Foundation

Any two of the above certifications will be considered an advantage.

#LI-MK2

#LI-Hybrid

Employment with ICON is contingent upon having the legal right to work in the country where the role is based.

Rewards & Benefits

ICON offers a competitive and comprehensive total rewards package designed to support your health, wellbeing, and career development.

Benefits may include:

Competitive base salary and performance related incentives
Health and wellbeing programmes including medical, dental, and vision coverage where applicable
Retirement and pension plans
Life assurance and disability coverage
Employee assistance programmes and wellbeing resources
Learning and development opportunities through structured training and career pathways

Benefits may vary depending on role and location.

Visit our careers site to read more about the benefits ICON offers.

Inclusion and Accessibility

ICON is an equal opportunity employer. We are committed to building an inclusive and accessible workplace where everyone feels valued and supported.

If you require reasonable accommodations during the recruitment process, please let us know or submit a request .

Are you a current ICON Employee?

Apply Now

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