Network Security Specialist

Job description

This role exists to provide specialist technical support on complex network security and cyber security deployments for any and all of our UK secure contracts. Building intermate working relationships and trust through effective communication and meeting expectation and deadlines is key. Liaising with customer representatives or vendors and directing other support staff where appropriate will form part of the role. What you’ll be doing We're growing! We currently have vacancies in various teams, so if you have an ambition to be in Cyber Security, we want to hear from you. One key thing that all of our engineers have in common is a desire to develop/deliver brilliant, industry redefining platforms as well as their own skills. Provide leadership on Agile / ITIL processes and be a decision maker within the security team; Advising those who will be working directly with yourself on best practices and able to support from a 3rd Line Lead perspective. Develop peers and colleagues within the team through mentoring and leadership providing trustworthy honest feedback. Produce and support polices, functions and configuration builds to allow implementation of customer projects. Complete and own integration testing on new products and services, producing all relevant supporting documentation Essential Skills External Professional Certification in Security Related discipline e.g. Fortinet NSE 7, Cisco CCNP, Checkpoint CCSE or Palo Alto PCNSE; covering some of the following key technologies - Fortinet - Cisco ASA & FirePower - Cisco ISE - F5 - Palo Alto - Zscaler - CheckPoint - NetScaler - Python Go Bash - Native Cloud Security - Linux/Unix OS - Windows OS Rapid prototyping and testing potential solutions, and understanding how to run lean and iterate continuously. Design user journeys, service maps, documentation, user flows and wireframes Collaborate with Product and Engineering colleagues. Facilitate workshops and design sprints. Skilled in building strong relationships across multiple teams Essential Experience Experience in Security Operations from a 3rd Line perspective Ability to support their team with day to day operations, ensuring customer satisfaction An intimiate knowledge of Networks and Network Security A drive for leadership and a passion for improvement Our Package • Competitive salary and on-target bonus plan • Flexible and smart working • Training and development opportunities • Competitive share options and pension scheme • Access to discounts on BT & EE products • 25 days annual leave (not including bank holidays) • 3 days paid volunteering a year • Weekly Hours: 37.5 • Salary: Level D • Position Type: Full-time • Contract: Permanent Join us at a pivotal moment for BT Business. We are executing a multi-year transformation to restore growth, modernise at scale and unlock new markets beyond connectivity. Our ambition is clear – return to sustainable revenue and EBITDA growth, strengthen our market position, and deliver meaningful shareholder value through disciplined execution and bold reinvention. We are fundamentally reshaping the business – simplifying our portfolio, digitising our customer experience and building market-leading capability across cyber, AI and managed services, all powered by the UK’s leading fixed and mobile networks. This is a shift from a legacy connectivity provider to a modern, solutions-led, AI-first business that can truly differentiate in a competitive and fast-moving market. With execution momentum building and a clear path to growth, the opportunity now is to scale what works, accelerate performance and fully realise our potential. This is about delivering against ambitious financial outcomes while transforming how we operate – creating a business that is simpler, faster, more innovative and easier to do business with. If you want to be part of the team shaping the turnaround of a multi-billion-pound business – and building a stronger, more competitive BT for the future – this is your moment. Apply Now Start applying with LinkedIn Please wait... Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a new tab. ©BT Group 2026 Cookie Consent Manager When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. Because we respect your right to privacy, you can choose not to allow some types of cookies. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer. Required Cookies These cookies are required to use this website and can't be turned off. Required Cookies Required Cookies Provider Description Enabled SAP as service provider We use the following session cookies, which are all required to enable the website to function: "route" is used for session stickiness "careerSiteCompanyId" is used to send the request to the correct data centre "JSESSIONID" is placed on the visitor's device during the session so the server can identify the visitor "Load balancer cookie" (actual cookie name may vary) prevents a visitor from bouncing from one instance to another Cookies from provider SAPasserviceprovider are required and cannot be turned off Functional Cookies These cookies provide a better customer experience on this site, such as by remembering your login details, optimising video performance or providing us with information about how our site is used. You may freely choose to accept or decline these cookies at any time. Note that certain functionalities that these third-parties make available may be impacted if you do not accept these cookies. Consent to all Functional Cookies Functional Cookies Provider Description Enabled Vimeo Vimeo is a video hosting, sharing and services platform focused on the delivery of video. Opting out of Vimeo cookies will disable your ability to watch or interact with Vimeo videos. Cookie Policy Privacy Policy Terms and Conditions Consent to cookies from provider Vimeo YouTube YouTube is a video-sharing service where users can create their own profile, upload videos, watch, like and comment on videos. Opting out of YouTube cookies will disable your ability to watch or interact with YouTube videos. Cookie Policy Privacy Policy Terms and Conditions Consent to cookies from provider YouTube Advertising Cookies These cookies serve ads that are relevant to your interests. You may freely choose to accept or decline these cookies at any time. Note that certain functionality that these third parties make available may be impacted if you do not accept these cookies. Consent to all Advertising Cookies Advertising Cookies Provider Description Enabled Google Tag Manager Google Tag Manager is a tag management system for conversion tracking, site analytics, remarketing and more. Privacy Policy Terms and Conditions Consent to cookies from provider GoogleTagManager LinkedIn LinkedIn is an employment-oriented social networking service. We use the Apply with LinkedIn feature to allow you to apply for jobs using your LinkedIn profile. Opting out of LinkedIn cookies will disable your ability to use Apply with LinkedIn. Cookie Policy Cookie Table Privacy Policy Terms and Conditions Consent to cookies from provider LinkedIn