Lead Systems Administrator (Motion)

Mediahuis IRL; Dublin; Hybrid; EUR 90,000 - 120,000; Full time

Job summary

Mediahuis IRL in Dublin is seeking a Lead System Administrator to own, secure, and optimise cloud and infrastructure services in a hybrid environment. You will guide incident response, automate with Terraform, and drive security, monitoring, and cost-efficient operations.

Join a hands-on infrastructure leadership role that supports critical business operations, collaborates with development teams, and mentors colleagues to adopt best practices across the organisation.

Qualifications

• Significant experience in infrastructure and systems administration.
• Strong expertise in AWS cloud services and cloud infrastructure management.
• Experience supporting highly available, business-critical production environments.
• Proven success delivering infrastructure automation and CI/CD solutions.
• Strong background in infrastructure security, disaster recovery, and incident management.
• Experience working within modern DevOps and cloud-native environments.

Responsibilities

• Administer and maintain AWS cloud infrastructure environments.
• Manage Linux servers, virtualised environments, and supporting platforms.
• Design, implement, and maintain Infrastructure as Code solutions using Terraform.
• Lead response and recovery activities for major incidents and service outages.
• Develop and enhance monitoring, alerting, and observability capabilities.
• Drive infrastructure automation initiatives to improve efficiency and scalability.
• Ensure security controls, governance standards, and compliance requirements are met.
• Plan and execute disaster recovery testing and business continuity activities.
• Support development teams with deployment pipelines and infrastructure requirements.
• Optimise platform reliability, performance, and cloud expenditure.
• Evaluate emerging technologies and recommend infrastructure improvements.
• Mentor colleagues and promote technical best practices across the organisation.

Skills

AWS

Linux Admin

Terraform

IaC

Networking

Cloud Security

CI/CD

Monitoring

DR/BC

Scripting

Tools

Terraform

Job description

Join Our Technology Team

We're seeking an experienced Lead System Administrator to own, secure, and optimise our cloud and infrastructure services. This is an exciting opportunity for a skilled infrastructure professional who thrives on building reliable, scalable, and resilient platforms that support critical business operations and product delivery.

As a technical lead, you'll play a key role in ensuring the availability, security, performance, and continuous improvement of our cloud infrastructure while helping shape the future direction of our technology platforms.

Lead System Administrator

Location: Dublin / Hybrid

What You'll Do

• Administer and maintain AWS cloud infrastructure environments.
• Manage Linux servers, virtualised environments, and supporting platforms.
• Design, implement, and maintain Infrastructure as Code solutions using Terraform.
• Lead response and recovery activities for major incidents and service outages.
• Develop and enhance monitoring, alerting, and observability capabilities.
• Drive infrastructure automation initiatives to improve efficiency and scalability.
• Ensure security controls, governance standards, and compliance requirements are met.
• Plan and execute disaster recovery testing and business continuity activities.
• Support development teams with deployment pipelines and infrastructure requirements.
• Optimise platform reliability, performance, and cloud expenditure.
• Evaluate emerging technologies and recommend infrastructure improvements.
• Mentor colleagues and promote technical best practices across the organisation.

Essential Experience

What we're looking for:

• Significant experience in infrastructure and systems administration.
• Strong expertise in AWS cloud services and cloud infrastructure management.
• Experience supporting highly available, business-critical production environments.
• Proven success delivering infrastructure automation and CI/CD solutions.
• Strong background in infrastructure security, disaster recovery, and incident management.
• Experience working within modern DevOps and cloud-native environments.

Technical Skills

• Amazon Web Services (AWS)
• Linux Administration
• Terraform
• Infrastructure as Code (IaC)
• Networking and TCP/IP
• Cloud Security Management
• CI/CD Pipeline Administration
• Monitoring and Observability Platforms
• Disaster Recovery and Business Continuity
• Scripting and Automation (PowerShell, Bash, or Python)

What Success Looks Like

In this role, you'll help deliver:

• Highly available and resilient infrastructure services.
• Secure, compliant, and scalable cloud environments.
• Automated, repeatable, and efficient infrastructure deployments.
• Proactive monitoring and operational excellence.
• Effective incident response and recovery capabilities.
• Continuous improvement of technology platforms and services.

Why Join Us?

You'll have the opportunity to work with modern cloud technologies, influence infrastructure strategy, and make a significant impact on the reliability and performance of our technology platforms. This role offers the chance to lead through expertise, drive innovation, and contribute to the continued growth and success of our technology function.