Linux System Administrator - VoIP (Telecom) (London)

Linux System Administrator - VoIP (Telecom)
Location: Remote (UK)

Salary: £60k-£90k

Start Date: ASAP

A leading telecom provider is looking for an experienced Linux System Administrator to manage and optimise its VoIP infrastructure. This is a hands-on, fully remote role ideal for someone with a strong background in Asterisk , Kamailio , FreeSWITCH , and Linux systems administration .

Key Responsibilities:

• Maintain and troubleshoot VoIP servers and call quality issues.

• Deploy and manage high-availability platforms using Corosync, Pacemaker, and DRDB.

• Configure MySQL replication and support database performance.

• Automate processes using shell scripting (Bash); Python/Perl is a plus.

• Monitor system health using tools like Prometheus, Grafana, and Icinga.

• Collaborate with internal tech teams and manage co-located hardware.

Requirements:

• 6+ years' experience in a telecom/VoIP Linux admin role.

• Strong knowledge of SIP, RTP, SDP, NAT traversal.

• Advanced skills in SAP, Oracle, and MySQL.

• Familiarity with KVM/Libvirt, CI/CD tools, and cloud platforms (AWS/Azure) is a bonus.

What's Offered:

• Remote working with flexible hours.

• Opportunity to work on critical, large-scale telecom systems.

• Career growth, strong technical team, and competitive benefits.