Senior Network & Security Engineer (L3) – 24/7 On-Call

Company: Telefonica Tech
Apply for the Senior Network & Security Engineer (L3) – 24/7 On-Call
Location: Northern Ireland
Job Description:

Telefónica Tech UK&I is seeking an experienced network engineer to own the design, deployment and support of complex network infrastructure and security solutions for healthcare clients. You will work within a mature managed service team delivering projects and ongoing services.

The role requires autonomous work, troubleshooting expertise and flexibility to participate in 24/7 on-call rotations across UK&I Enterprise Health customers.

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Posted: July 17th, 2026