Location: Hybrid – Work from home and office visits as and when required (London Campus)Target Start Date: End of July 2025Contract duration : 6 months (potential to extend)Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.Senior Network and Firewall Engineer (T1) – Network ServicesEveryone knows technology is the fastest changing industry in the world. We’re shaping our IT landscape by transforming how we deliver our IT change projects, and we need you to join us. You’ll build collaborative relationships in a team that brings together extremely talented individuals who have enjoyed long careers at Deloitte and many new people like you. Join them at this exciting time and you will be enjoying the kind of professional development where you can explore your potential.Team SummaryThis is a Network Infrastructure support role within the IT Operations function at Deloitte. Reporting to the Network and Security Operations Manager and working closely with other internal ITS teams, the Network support engineer will provide internal technical consultancy and oversight for all UK network services outsourced to a network Service Provider (NSP – currently British Telecom). This role demands a strong technical background, coupled with a holistic ITIL Service based mentality and experience managing Service Providers. The role demands the ability to balance operational stability against the responsiveness to business requirements.ResponsibilitiesManage workloads, which will involve setting prioritises and delegating activities to team membersAs a senior team member, you will act as mentor to inexperienced team membersAccountable for end-to-end administration of Network, F5 and Forescout technologiesResponsible to manage end to end process of firewall management/administrationConfiguring and troubleshooting issues related to Cisco switches (Nexus) and routers (ASR/ISR)Configuring and maintaining F5 load balancers and troubleshooting F5 related issuesWork closely with technology services teams and put-up action plan for firewall OS /patch upgrades, rebuild etc.Service request fulfillment for firewall global policy and other security extension changes (VPN, IPS, URL Filtering, Application Control, etc.)Providing technical network infrastructure assistance and guidance to business relationship managers, project managers, infrastructure managers and other technical and non-technical staffWork with the NSP to assess and interpret high-level network related requirements and provide the most appropriate solution design to meet business benefits and preferable outcome for the cost and effectiveness of ongoing usageEvaluating detailed solution design instructions and assessing the quality of the produced solution. Can clearly articulate solution dependencies beyond the technology itself and ensure that a cohesive business solution will result.Act as a technical interface and liaison with internal technical staff and 3rd parties who will implement technologies not supported by the NSPRaising simple and complex service requests with the NSP using appropriate methodRaising Request for Change records (RFCs)Technical governance and approval of change requests, ensuring RFCs are within technical standards and underpin a cohesive support frameworkProviding guidance and support to the Infrastructure Operations Centre (IOC) and NSP for major incidents, including attendance on emergency Change Approval Board (CAB) meetingsWorking with Problem Management team and NSP to identify problems and assist in treatment plans, raising RFCs with NSP where appropriateWorking with Deloitte and NSP Capacity teams to forecast infrastructure usage requirements and engage with Network service owner and NSP to adjust capacity of services as necessaryQuantifying areas of improvement for key processes and services with Service ProviderAttend NSP Service Review meetings and provide feedback on Service and key metrics against contractual frameworkWorking with Service Manager on continuous service improvement plans, engaging internal IT teams and NSP to implement required improvementsAbility to assess statement of works from NSP and ensure they are in line with expectations and that the assumptions made by the NSP are validMust HaveStrong experience in designing, transitioning, and operating Cisco LAN technologies and routing protocols (EIGRP, OSPF, RIP, BGP) in an enterprise environment (national and global)Good knowledge of Palo Alto and Checkpoint firewallsKnowledge of LAN/WAN and network protocolsAdvanced level skill in firewall policy managementPlanning for firewall OS and management upgradationExperience in F5 Load balancing (LTM and GTM)Strong experience managing IP networks and supporting infrastructure (DHCP, DNS)Knowledge of network architecture and web related protocols (e.g., TCP/IP, UDP, IPSEC, HTTP/S)Working knowledge and understanding of Cisco ACI infrastructureProven Service Management (ITIL) experience, specifically incident, problem and changemanagementExcellent written and verbal communication skills, with a focus on translating technically complex issues into simple, easy to understand conceptsWillingness to learn additional technologies, not focused on a single technology/applicationBe able to collaborate with clients, identify engagement, follow-on opportunities, and have a strong desire to excelAbility to work in virtual teams, offering support to team members remotelyDemonstratable experience of coaching others to deliver quality workTools and TechnologiesNetwork:Cisco Nexus SwitchesCisco Wireless Access PointsCisco Wireless LAN ControllerNetwork Security :F5 load balancerArbor DDOSCheckpoint FirewallTechnical Certifications (Good to have)ITIL v3 or v4 FoundationPalo Alo or Check Point Firewall CertificationPCSA, CCSACCNP certificationIR35As a means of managing tax, commercial and reputational risks, Deloitte prohibits the use of Associates through Personal Service Companies (‘PSCs’). All Associates must contract under PAYE arrangements through a Deloitte approved ‘Employment Company’ (aka ‘umbrella company.’)

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