Summary
This is a key senior engineering role within our Operations function, focused on keeping our enterprise voice and unified communications platforms running at their best. You’ll play a critical part in supporting and evolving services that underpin O2 Business and wider VMO2 customers, working across core network and hosted voice environments. You’ll be hands‑on with provisioning, fault diagnosis, software upgrades and complex incidents, while also contributing to change delivery and new product development. Working closely with engineering, test, delivery teams and third‑party partners you’ll help ensure our services are resilient, secure and ready for the future, including participation in a 24x7 on‑call rota.
Location
Reading, Slough
Job Family
Digital & Technology
Job Type
Full Time
Posted Date
14-May-2026
Reference Number
73647
Responsibilities
In this role you will provision, diagnose faults, perform software upgrades and resolve complex incidents, deliver change, support new product development and work with engineering, test, delivery teams and third‑party partners to ensure services are resilient, secure and future‑ready. You will also participate in a 24x7 on‑call rota.
Qualifications
* Proven experience in Unified Communications with previous knowledge of Metaswitch and DSTNY TelepoUC call delivery platforms.
* Understanding of TCP/IP troubleshooting networks, DNS, VPN routing, VLANs, firewalls and VoIP technology exposure.
* Highly competent with a detailed understanding of SIP signalling and decoding.
* Experience with SIP trunking.
* Linux/Unix skills (SUSE, Redhat, Centos and Debian).
* Knowledge of hardware and software‑based SBCs (Perimeta and AudioCodes being advantageous).
* Experience with Microsoft and Cisco UC products such as Microsoft Operator Connect, Teams Phone Mobile, Cisco Webex and Webex Go deployment in fixed and mobile environments an advantage.
* Competent with network tracing tools – Empirix, Intellisight.
Additional Desired Skills
* Knowledge of customer environments: IP PBX and legacy systems, including use of protocol converters where required.
* Experience with analytics tools and IPSLA.
* Vendor Management experience.
* Good presentation skills.
Benefits
Benefits include Bupa healthcare, wellbeing support, life cover, a pension, generous holiday (including your birthday off). Optional perks such as an electric vehicle lease, Cycle2Work scheme, dental insurance, neurodiversity assessments, discounts on broadband, TV and mobile, access to the Virgin Family platform and the O2 Priority app with exclusive rewards.
Equal Opportunity Employer
Virgin Media O₂ is an equal opportunities employer and we work hard to remove bias and barriers. We want every person who joins us – and everyone thinking about joining us – to feel seen, heard and supported.
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