Systems Administrator II - 24/7 On-Call Support

Astreya Limited; England; On-site; GBP 42,000 - 62,000; Full time

Job summary

Astreya Limited in the United Kingdom seeks a System Administrator to support and maintain large, global-scale systems for building management and physical security operations. You will handle ticketed work, monitor infrastructure, and ensure timely resolution with cross-functional teams.

The role emphasizes ticket-driven workflow, collaboration with internal and third-party teams, and on-call coverage for time-sensitive upgrades and outages.

Qualifications

• Bachelor’s degree and 2–5 years related experience or equivalent

Responsibilities

• Monitor ticket queue and IM channels
• Manage systems and infrastructure monitoring
• Log metadata in internal tools (CTI, outages, transcripts)
• Resolve troubleshooting tickets with internal/3rd‑party teams
• Interface with 3rd parties professionally per vendor code of conduct
• Provide out of hours support for upgrades
• Provide 24/7 on-call support for outages
• Other duties as required

Skills

Bachelor's degree

2-5 years experience

Team collaboration

Judgment within procedures

Server management

Networking management

Troubleshooting

Ticket systems

Communication skills

Automation experience

Education

Bachelor's degree in CS/IS or related

Job description

Astreya Limited in the United Kingdom seeks a System Administrator to support and maintain large, global-scale systems for building management and physical security operations. You will handle ticketed work, monitor infrastructure, and ensure timely resolution with cross-functional teams.

The role emphasizes ticket-driven workflow, collaboration with internal and third-party teams, and on-call coverage for time-sensitive upgrades and outages.