Reliability Engineering Specialist - Policy Core - ESN Job Req ID: 46917 Posting Date: 22 May 2025 Function: Engineering Unit: Networks Location: Rowley Lane, Borehamwood, United Kingdom Salary: Competitive Salary Great Benefits Job Req ID:46918 Posting Date:22/05/2025 Function:ESN Networks Location:Borehamwood or Bristol Why this job matters The Emergency Services Network (ESN) is a huge strategic priority for BT and our commitment to do the best for our customer and our country. ESN will be one of the most advanced Emergency Services Networks in the world. and BT is proud to the official supplier providing mission critical and trusted communications for Britain's Emergency Services. The ESN will replace the existing Airwave network and building upon on EE's existing 4G network and to provide essential new voice, data services, and critical communications services to 300,000 members of frontline emergency service users. The purpose of the Mobile Test & Innovations Labs team is to design, integrate/build, test, and deliver market-leading converged Mobile and Fixed network services. You will be part of a dynamic team of expert engineers ensuring that design, testing and operations teams are able to use the EE Labs environments. You will also contribute to build new services and refine existing services in line with our customer experience and network leadership goals, working at the forefront of your domain to try out new capability, before it goes to market. The successful candidate will be cleared to BPSS (or equivalent) as a minimum. You may even be required to undergo National Security Vetting (e.g. CTC, SC or NPPV). What you'll be doing - Own and be accountable for the build, operation & maintenance of policy core platforms in our innovation labs including inputting to delivery plans, integration of platforms - Collaborate with cross functional teams within mobile including Design, Operations, Development, Quality Assurance & Leading technical discussions and investigations across mobile core networks - Drive effective incident, change, problem, risk, and vulnerability management. Tracing network issues and investigating dataflows using network tools available (CNOM/Wireshark/NetScout) - Drive and maintain alignment of the Test Environments with reference to the live EE network and work co-operatively with other business communities and third parties, to improve service performance, quality, and customer experience - Champion and drive continuous improvement for the service that we offer to our key stakeholders through test, design and operations, encouraging effective automation solutions for our mobile core. Lead the config changes with CICD pipeline The skills you'll need Troubleshooting Network Delivery Network Security Technical Documentation Network Configuration What we would like to see on your CV - Proven experience of working in a technical position within a telco organisation, managing, support & maintenance activities of cloud core platforms. Significant experience of working on core network deployments and testing of the new features introduced in forthcoming releases - Expert level knowledge of Cloud Native Core, Policy Control Function, Oracle's CNCC, PCF, DbTier, OCCNE systems, OSS tools and tracing systems (e.g. CNOM, Wireshark, Promethius, Netscout) - Expertise on Ansible, Terraform deployments. Good understanding of 5G / LTE architecture, call flows and knowledge of protocols such as BGP, PFCP, GTPv2, Diameter, SIP, Kubernetes administration activities & troubleshooting, Linux, Python & Automation CI / CD Pipeline, network security vulnerabilities and firewall implementations. - Excellent stakeholder management and influencing skills. Understanding of end-to-end mobile services and good working knowledge of Network Cloud, IP and transports capability - Proven background in introducing automation to reduce repetitive tasks and increase reliability 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. - 10% on target annual bonus - BT Pension scheme, minimum 5% employee contribution, BT contribution 10% - X4 Salary Life Assurance - Huge range of flexible benefits including Cycle to Work, Healthcare, Season Ticket Loan, Electric Vehicle Salary Sacrifice - 25 days annual leave (not including bank holidays), increasing with service - From January 2025, equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It's for all parents, no matter how your family is made up. - Enhanced women's health support: including help with menopause symptoms, cancer screenings, period care and more. - 24/7 private virtual GP appointments for UK colleagues - 2 weeks paid carer's leave - World-class training and development opportunities - Option to join BT Shares Saving schemes - Discounted broadband, mobile and TV package - 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. 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. We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us. 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.