VPBX/SIP Engineer

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Accountabilities

* To maintan, test and monitor my client's core virtual PBX and IMS + ancillary systems

* To integrate, deploy and upgrade core telephony and unified communications technologies and platforms

* To manage, operate and take accountability for current and future SIP provisioning process.

* To manage, operate and take accountability for continued VoIP operations and maintenance including as needed applying patches, updates, to ensure critical bugs or security ossues addressed in a timely manner.

* Maintenance of mixed vendor test lab environment

* Tier 3 support for Virtual PBX for Tier 1 & 2 teams

* Tier 3 support for Call recording platform for Tier 1 & 2 teams

* Key Performance Metrics collection and reporting

* Support for deployment of variety of hardware and software based Session Intiation (SIP) Clients SIP clients

* To curratre, and continuously improve technical documentation in the form of guides, playbooks and reports.

* Normal business hours and after hours/on call responsibilities as required for overnight upgrades, eligible for on-call rota

* To multi-task between projects and provide customer facing support for all provided converged communication services

* To troubleshoot SIP call processing

* To support escalated tickets

* Responsible for owning escalations from different areas in relation to complex SIP calls flows

* To understand each customers business needs and how they relate to the technologies being supported

Personal Qualities and Experience

* Demonstrate expertise in deployment, maintenance, and troubleshooting and testing of VoIP and VPBX technologies.

* Good understanding of the Internet Engineering Task Froce (IETF) Request for Comment (RFC) stanfards and be able to interpret different intrepratation of standards

* Call Control/Call Signalling Experience, including fundamental knowledge of IMS & VoLTE

* Deep level of knowledge in computer networking (e.g. TCP/IP, IPv4, IPv6, DNS, DHCP)

* Expert knowledge in SIP messaging including reading traces or problem isolation

* Good level of scripting principles, well versed in database administration, experience working with Python or similar scripting languages

* Demonstrates sound judgement in solving problems, identifying problems in advance, and proposing solutions.

* Strong analytical and organisational skills, with attention to detail.

* Demonstrate strong verbal and written communication skills.

* Ability to multi-task, prioritising multiple objectives and initiatives.

* Comfortable working on a Linux environment / worked in a Linux server environment and understands basic commands

* Excellent communication skills both oral and written.

* Able to work independently and as part of a team.

* Experience managing network upgrade projects

* Experience with VoIP as a Service

* Experience in vitalised data centres

* Cisco certifications (CCIE, CCNA, CCNP, CCDA, CCDP) a plus

* Experience with one of the following vendors (Cisco, Fortinet, Broadsoft, Huawei, Juniper)

Behavioural Competencies Passionate:

* Builds commitment by winning the hearts and minds of others. Is respected by colleagues and identified as a role model.

* Puts aside personal agendas to work for the benefit of the organisation, customers, and suppliers. Proactively builds knowledge capability through the sharing of knowledge, best practice, and expertise with others.

* Clearly communicates ideas, plans and strategies, taking ownership and accountability to deliver what we say.

* Willing and able to go the extra mile.

Innovative:

* Generates innovative approaches with potentially significant long-term impact, introducing improvements to the way things are done.

* Pioneering/entrepreneurial thinker.

* Able to get the best from technology.

Ambitious:

* Demonstrates complete focus and determination to achieve/exceed KPI's. Is a self-starter and takes the initiative in situations.

* Learns quickly, adapting thought and action to changing business and customer demands. Can engage and enthuse others through the process of change.

* Is dedicated to meeting/exceeding the expectations and requirements of internal and external customers. Uses information to improve services and solutions. Manages the customer experience to ensure positive relationships and retention.

* Welcomes continuous professional development to learn and grow.