This job is no longer available
This job expired on 19/07/2026. It no longer accepts applications.
System Administrator
Haystack · Région métropolitaine de Dublin
Job description
About the role
We are looking for a System Administrator to develop and maintain core security services for a global technology platform. The role involves designing new security features, deploying software across large automated systems, and providing operational support with a focus on automation.
Key responsibilities
- Develop and maintain foundational security services for a global platform.
- Design, implement, and deploy new security features across large automated environments.
- Provide operational support for security software, emphasizing automated fixes and problem‑solving.
- Work with security technologies such as access control, identity security, and authentication.
- Participate in a 24/7/365 on‑call rotation, typically once every 4‑6 weeks.
Required profile
- Bachelor’s degree in Computer Science, a related technical field, or equivalent experience.
- Solid understanding of networking fundamentals.
- Proven experience in Linux systems administration and/or development.
- Experience with at least two programming or scripting languages.
- Experience operating in a 24/7 production environment.
- Familiarity with configuration‑management tools is a plus.
Required skills
- Linux systems administration
- Python
- Java
- Perl
- PHP
- Ruby
- Bash/Shell scripting
- Networking fundamentals
- Puppet, Chef, or Ansible (configuration‑management)
What we offer
- Competitive salary
- Opportunity to work with cutting‑edge security technologies on a global scale
- A culture that values learning, curiosity, and mentorship
- Flexible work arrangements to support work‑life balance
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Haystack
Région métropolitaine de Dublin
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