Senior Systems Administrator

Operations Santry, Dublin



The Senior Systems Administrator is responsible for designing, implementing and managing the j2’s Cloud Backup infrastructure based in Ireland, UK and Iceland. The position is a hands-on position and will serve as the technical escalation contact for support and project issues with approximately 45% daily network administration and support tasks and approximately 55% project-related tasks. The Senior Systems Administrator will be responsible for storage and cloud backup architecture, along with network design and implementation.

You will be working within a small team of exceptional engineers and will be involved in both ongoing architecture improvement projects as well as day-to-day operations of J2’s Cloud Backup infrastructure, e.g. monitoring and measurement of the production services and troubleshooting of issues.

You will be expected to manage your own projects and possess excellent communication skills. Pro-actively identify and resolve operational issues across the J2 Cloud Backup network as well as working on and running infrastructure projects as part of ongoing growth and improvements.

J2’s Cloud Backup business runs almost exclusively on our own hardware, so experience of virtualization technologies is essential, but also being comfortable with hardware as well as software is critical.

The successful candidate will be able to demonstrate a strong track record of proven results encompassing both the required technical and project delivery skills. It is essential that the successful candidate be able to function as part of a cross-functional, cross-departmental and inter-company team.

Key Technical Requirements:  
  • Deep understanding of backup’s infrastructure, and the ongoing management, monitoring, maintenance of the various environments to maintain uptime.
  • Knowledge and experience with Ahsay, Asigra, RapidRecovery or Veeam
  • Deep understanding and experience of local and network storage configuration (RAID, SCSI, NFS)
  • Advanced Linux, (CentOS/RedHat), systems administration gained in an enterprise environment.
  • Virtualization experience (Hyper-v and VMWare)
  • Network experience, Switches, Firewalls, VLANs, VPN (pfsense, Cisco, Fortinet, HP, Extreme Networks)
  • Remote management of servers (iLO, iDRAC, IPMI)
  • Web Server, SSL knowledge.
  • Strong Windows server knowledge, Active Directory, LDAP
  • Experience with monitoring tools such as Zabbix configuration and deployment
  • Puppet configuration and deployment

 Key Responsibilities:

  • Proactive monitoring of the networks across Europe, troubleshooting and resolving issues where required.
  • Management and deployment of J2’s Cloud Backup storage infrastructure, and assisting this for other platforms
  • Monitoring of service metrics, ensuring that department SLAs are met.
  • Deploying new monitoring tools where necessary to ensure good service across the board.
  • Working with the existing teams on development of automation and management tools to ensure J2’s Cloud Backup business can continue to grow quickly and efficiently.
  • Management of hardware infrastructure, including rack deployments, spares and RMAs.
  • Scripting of any management/maintenance tools required


About j2 Global

Founded in 1995, j2 Global® (NASDAQ:JCOM) is an award winning, leading provider of Internet services through its two divisions: Business Cloud Services and Digital Media.

The Business Cloud Services Division offers Internet fax, virtual phone, hosted email, email marketing, online backup, unified communications and CRM solutions. It markets its services principally under the brand names eFax®, eVoice®, FuseMail®, Campaigner®, KeepItSafe® and Onebox® and operates a messaging network spanning 49 countries on six continents.

The Digital Media Division, created with j2 Cloud Services’ November 2012 acquisition of Ziff Davis, Inc.

Ziff Davis, Inc. is the leading digital media company specializing in the technology, gaming and men's lifestyle categories, reaching over 117 million unique visitors per month. Ziff Davis sites include,,,,,,, and Ziff Davis also operates NetShelter, the largest community of technology publishers dedicated to consumer electronics, computing and mobile communications. Ziff Davis B2B is a leading provider of online research to enterprise buyers and high-quality leads to IT vendors.

As of December 31, 2016, j2 Cloud Services had achieved 21 consecutive fiscal years of revenue growth.

For more information about j2, please visit

Our Culture:

At j2 Global®, we work in a culture of collaboration and welcome those who desire to join our growing global community. We seek enthusiastic individuals with an entrepreneurial spirit looking for an environment that rewards your best work.

J2 Global offers competitive salaries, health benefits, a 401k, and company-sponsored events. If you’re seeking a dynamic work environment where you can see the direct impact of your performance, then j2 is the place for you.

J2 Global® is an Equal Opportunity Employer.