Snr IT & Security Admin.

E-Frontiers; Wicklow; Hybrid; EUR 80,000 - 105,000; Full time

Benefits offered by this job

Hybrid working model after probation

Employee Share Option Scheme

Pension contribution

Death in service benefit

Annual leave 22–25 days

Job summary

E-Frontiers is seeking a Senior IT and Security Administrator to lead the implementation and maintenance of IT and security architecture. This hands-on role oversees IT assets, secure staff provisioning, and ongoing security strategy within a full-time framework.

You will implement and monitor IDPS, SIEM, and cloud security settings while guiding onboarding/offboarding, and supporting departments with secure network services and staff transitions.

Qualifications

• Bachelor's degree in Computer Science, Engineering, Information Technology, or Cybersecurity.
• CompTIA Linux+ or equivalent, CCNP, CompTIA Network+, or CompTIA Security+ desirable.
• Experience with network protocols (TCP/IP, VLANs, routing).
• Hands-on experience with virtualised and cloud environments.

Responsibilities

• Design, implement, and maintain scalable network infrastructure (LAN/WAN/Wi‑Fi/VPN).
• Configure and troubleshoot routers, switches, wireless APs, and firewalls.
• Monitor and upgrade servers in hardware, virtual and cloud environments; Linux administration.

Skills

Network design

Security operations

EDR tools

Staff onboarding/offboarding

Troubleshooting

Education

Bachelor's degree in CS/Engineering/IT/Cybersecurity

Tools

VMware

Openshift

Kubernetes

Docker

AWS

Azure

Job description

Job Title: Senior IT and Security Administrator

Department: IT / Engineering

Role Overview

This is a full-time hands-on technical role focused on the implementation and maintenance of the organization's IT and security architecture. You will act as a primary technical resource responsible for administrating and executing the company IT and Security strategy, managing IT assets, and facilitating secure staff transitions.

Key Responsibilities

1. Implementation & Maintenance of IT Architecture

Design, implement, and maintain robust and scalable network infrastructure, including LAN, WAN, Wi-Fi, and VPN services, to support business operations.

Configure, install, and troubleshoot network devices such as routers, switches, wireless access points, and firewalls.

Monitor, maintain and upgrade company servers and systems in hardware, virtual and cloud based environments.

Installation and Administration of Linux-based systems and software/services

2. Operational Security & Monitoring

Lead the technical deployment and management of security tools, including Intrusion Detection/Prevention Systems (IDPS), antivirus/anti-malware solutions, and SIEM platforms.

Monitor network performance to identify bottlenecks and implement technical solutions that optimize efficiency and reliability.

Perform regular risk assessments, vulnerability management, and penetration testing to identify and mitigate technical risks.

Implement and manage security access control and identity management systems to ensure least-privilege access is maintained throughout the employee lifecycle.

3. Asset Management & Staff Operations

Maintain accurate tracking and inventory documentation for all IT hardware and software assets, ensuring the registry is up-to-date and compliant with security policies.

Manage the technical onboarding and offboarding processes for staff, ensuring timely and secure provisioning of hardware and access rights, as well as the secure de-provisioning and retrieval of assets for departing employees.

4. Incident Response & Support

Participate in the investigation and resolution of security incidents as part of the wider incident response plan.

Provide technical mentorship to junior staff and handle escalated troubleshooting requests.

Ensuring ongoing archiving of relevant logs and artefacts for future investigate.

Support of other departments as required, e.g. deployment of off-site pop-up networks for the marketing department during demos and events

Qualifications & Skills

Experience: 5-8 years of IT experience with a strong focus on network implementation and technical security.

Education: Bachelor's degree in Computer Science, Engineering ,Information Technology, or Cybersecurity.

Technical Proficiency:

• Extensive experience with network protocols (TCP/IP, VLANs, routing).
• Experience with Virtualised Environments (VMWare, Openshift, Kubernetes, Docker)
• Hands-on experience with EDR tools and cloud security environments (AWS, Azure) desirable

Certifications:

Comp TIA Linux+ (or similar), CCNP (Cisco Certified Network Professional), CompTIA Network+, or CompTIA Security+ desirable.

Benefits:

• After successful completion of the first three months of your six-month probationary period, the opportunity of a hybrid working model will be available.
• Employee Share Option Scheme after one year's service.
• 2% company pension contribution from start rising to 5% company pension contribution after one year's service.
• Death in service benefit from the date of joining
• 22-25 days Annual Leave depending on length of service.
• Opportunity to travel for work related purposes.
• Opportunity to work alongside leading engineers in newly emerging technologies.
• Mentoring and coaching
• Technical and business training.
• Team 'get togethers' to celebrate successful quarterly Demos