Mobile Voice Design Lead - ESN

Job Req ID: 32934

Posting Date: 1 May 2024

Function: Software Engineering

Unit: Networks

Location: Snowhill, Birmingham, United Kingdom

Salary: Competitive salary + great benefits

Job Req ID: 32934

Posting Date: 01/05/2024

Function: ESN Network Services

Location: Birmingham, Bristol, London or Ipswich

Why this job matters

BT is building an Emergency Service Network that will underpin all UK blue light service providers. This role is a key enabler for the delivery of these critical services. The scale of this network will encompass the whole of the UK and will be available to all Emergency Services.

This role is a lead design role for the underlying Emergency Service, mission critical, core network, including a number of bespoke services tailored to our Blue Light Customers. As such the role holder will be working on the UK's “state of the art” Mobile Emergency Services Network, designing and developing new critical services. This role will require the holder to lead the design, integration, test and implementation of mission critical core elements as part of the Emergency Services Network, including leading the design functions associated with vendor selection.

This role can be based in London, Birmingham, Ipswich or Bristol.

What you'll be doing

• Build, validate and review team's design work to ensure architectural conformance and adherence to scope, time and budget requirements
• Hold accountability for solutions and ensure full integration across domain or cross domain functions, ensuring consistency in architecture and technical processes
• Build and manage the team by providing technical direction and setting review processes for new developments as well as in-life products and services, setting priorities and allocating work accordingly
• Hold accountability for the design integration both within and cross domain

Essential skills

Microservices/Service Oriented Architecture

Continuous Integration/Continuous Deployment Automation & Orchestration

Application Development

Software Development Lifecycle

Project/Programme Management

What we would like to see on your CV

• Excellent knowledge of SIP protocol (including RTP) and of Voice Technologies such as B2BUA, Session Boarder Controllers, SIP Gateways, Media Resource Managers. Must be able to decipher traces and design new SIP Services
• Excellent understanding of IMS Technologies from P-CSCF to I/S-CSCF as well as detail TAS knowledge
• Proven experience of Mobile Core Architecture and be able to identify key integration points with IMS. Must be able to develop High Level as well as Low Level design for complex voice applications
• Understanding of Push to Talk technologies, infrastructure virtualisation (private cloud) and principles of Voice security architecture (IPSEc, Encryption etc), would be advantageous
• The successful candidate must be willing to undergo up to SC Level Government Clearance which requires residence in the UK for a minimum of 5 years

Benefits

At BT, we entertain, educate, and empower millions of people every single day. We're a brand built on connecting people – whether that's friends, family, businesses, or communities. Working here, you'll receive an attractive salary and a range of competitive benefits, but – more than that – you'll be joining an ambitious organisation with a culture of togetherness, collaboration, and inclusivity, that takes a genuine and proactive interest in your progress and development.

• Competitive salary
• 10% on target bonus
• BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
• 25 days annual leave (not including bank holidays), increasing with service
• Huge range of flexible benefits including cycle to work, healthcare, season ticket loan
• World-class training and development opportunities
• Option to join BT Shares Saving schemes.
• Discounted broadband, mobile and TV packages
• Access to 100's of retail discounts including the BT shop

Flexible Working

This role offers a 3 together, 2 wherever working model. This means you are required to be at your contractual location 3 days a week with 2 flexible days per week.

#Hybrid

With over 175 years of heritage, BT is now the flagship business brand of BT Group. We've brought together our best people and capabilities into a B2B powerhouse serving 1.2 million business customers internationally.

We're a global leader for secure connectivity and collaboration platforms for businesses of all shapes and sizes, from big household names and government departments, right through to sole traders and new start-ups. But it's not just the technology that matters, it's what it can do to help them build stronger, smarter, more secure businesses.

We value diversity and inclusion and believe in making a positive impact. We connect for good by championing digital inclusion and equipping people, businesses, and communities with digital skills to thrive.

As a member of our team, you will be part of an organisation that celebrates difference, fosters innovation and provides you with opportunities to be your best. With millions of businesses relying on us daily, joining BT means you can be part of a diverse and multi-skilled team that makes a significant impact to society.

A FEW POINTS TO NOTE:

Although these roles are listed as full-time, if you're a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

DON'T MEET EVERY SINGLE REQUIREMENT?

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.