Network Security jobs in United Kingdom

# Senior Network EngineerJob Req ID: 56364Posting Date: 25 Feb 2026Function: ServiceUnit: UK BusinessLocation: Exeter (R620), Exeter, United KingdomSalary: Competitive**Job Req ID: 56364****Posting Date: 25th February 2026****Function: Service****Location: Exeter****Salary: Competitive****Please note, a full UK driving license is required for this role. A company vehicle will be provided.****Please note you must either hold or be eligible for SC (Security Clearance) & NPPV 3 Clearance for this role, which will require a minimum of 5 years working history in the UK to be eligible.**## **Why this job matters**This role is key to delivering the Devon & Cornwall and Dorset Police contract, ensuring reliable and secure network services that support critical blue light operations across Devon & Cornwall, and Dorset. As part of the Data Networks team, you’ll provide expert technical support for the LAN and WAN infrastructure, resolving complex incidents and maintaining service availability. Your work directly enables the customer’s mission-critical communication systems, making a real impact on public safety and operational effectiveness.## **What you’ll be doing*** Delivering successful technical resolutions to complex network issues escalated from second line, applying strong analytical and problem-solving skills.* Planning and implementing complex network changes with first-time delivery to maintain stable and secure services across a wide range of products and solutions.* Managing workload effectively to meet key performance indicators while ensuring ISO20k compliance and alignment with contractual obligations.* Production of Dorset and DCP month end reporting to confirm SLA performance, analysis of report set and development of trending data to support or identify improvements and or underlying issues as required.* Supporting lifecycle management, security vulnerability remediation, and production of performance reporting to identify trends and drive service excellence.## **The skills you’ll need**Escalation ManagementIssue ResolutionNetwork ConfigurationTechnical DocumentationIncident Management## **What we'd like to see on your CV*** Customer-focused approach with a commitment to delivering proactive, high-quality technical support and service excellence.* Broad technical knowledge across areas such as Cisco networking, network security, wireless technologies, and relevant certifications (e.g. CCNA or working towards).* Ability to communicate technical information clearly and build effective relationships with a range of stakeholders and teams.* Experience planning and delivering work under pressure while maintaining integrity, accountability, and collaboration.* Understanding of ITIL principles, process management, and continuous improvement within an SLA-driven environment.## **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, including 50% off EE mobile pay monthly or SIM only plans • Access to 100’s of retail discounts including the BT shopFlexible 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.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.