126 to 135 of 135 Network Security Jobs in London

willing to challenge in a constructive way should the need arise. Through the project you will work alongside other teams, such as Cyber Security, Testing and the Application Team. You must be familiar with good change control processes and be an advocate for these within the team. … Code (IaC) such as Terraform (preferred), Ansible, Jenkins etc. Assess networking requirements and help design appropriate solutions, including load balancing, Firewalls, routing, and network security Troubleshoot and resolve complex issues related to cloud infrastructure and applications Mentor and provide technical guidance to junior cloud engineers, promoting knowledge sharing ...

point for complex 3rd-line infrastructure, cloud, and networking issues. Lead and govern technical delivery across: Azure, Office 365, Windows Server SonicWall firewalls, VPN & security VMware/Hyper-V 3CX VoIP & supporting network infrastructure Own patching, maintenance standards, security alignment, and DR strategies. Ensure high-quality documentation … term progression within the technical team. Project Delivery Lead and deliver internal and client-focused technical projects including: Cloud migrations Infrastructure upgrades VoIP deployments Network/security improvements Define scope, risks, timelines, and outcomes, ensuring delivery within agreed parameters. Work cross-functionally with leadership, service delivery, and commercial ...

Excellent opportunity for Deskside Support Engineer to be part of our Cloud Infrastructure & Security services practice. Cognizant Infrastructure Services – Provides IT infrastructure & Cloud services for clients across industry verticals, including both Consulting/Professional and Managed Services, across Enterprise Computing, Cloud services, Security Services, DevOps, Data Centres … User Computing, Service Desk, Network Services and Environment Management Services. Key Responsibilities Advanced Support & Problem Management (Tier 2/3) Own and resolve complex, high-impact, and escalated support issues (L3) that cannot be resolved by Tier 1 staff. Perform Root Cause Analysis (RCA) for recurring incidents, developing ...

Excellent opportunity for Deskside Support Engineer to be part of our Cloud Infrastructure & Security services practice. Cognizant Infrastructure Services – Provides IT infrastructure & Cloud services for clients across industry verticals, including both Consulting/Professional and Managed Services, across Enterprise Computing, Cloud services, Security Services, DevOps, Data Centres … User Computing, Service Desk, Network Services and Environment Management Services. Key Responsibilities Advanced Support & Problem Management (Tier 2/3) Own and resolve complex, high-impact, and escalated support issues (L3) that cannot be resolved by Tier 1 staff. Perform Root Cause Analysis (RCA) for recurring incidents, developing ...

experienced Infrastructure & Networks Analyst to manage and enhance our IT infrastructure across multiple sites. You’ll take ownership of day-to-day network operations (LAN, WAN, Wi-Fi, Firewalls) while working closely with external partners to ensure a secure, stable, and high-performing environment. Key Responsibilities Manage and maintain … full infrastructure estate, ensuring systems are patched, secure, and aligned with company standards. Support and optimise our network infrastructure, including DNS, DHCP, load balancing, MPLS, VPLS, OSPF, LACP, and firewall technologies. Provide 2nd/3rd-line support for Microsoft technologies (Azure, AD, Group Policy, DNS/DHCP, PowerShell), VMware ...

scanning and traffic analysis to map undocumented dependencies, assets, and service flows Execute a safe and secure transition of services (Service Desk, Infrastructure Support, Network Management) from the outsourced provider to the Council, minimising impact on frontline public services. Rigorously enforce contract exit clauses, ensuring full knowledge transfer, password … Landing Zones, Subscriptions, and Resource Groups. Drive the modernisation of IaaS workloads toward PaaS where appropriate Take ownership of the perimeter and internal network security. specific responsibility for the configuration and optimisation of Fortigate Firewalls, SD-WAN interconnects, and switching fabric to support a flexible, hybrid workforce Manage ...

scanning and traffic analysis to map undocumented dependencies, assets, and service flows Execute a safe and secure transition of services (Service Desk, Infrastructure Support, Network Management) from the outsourced provider to the Council, minimising impact on frontline public services. Rigorously enforce contract exit clauses, ensuring full knowledge transfer, password … Landing Zones, Subscriptions, and Resource Groups. Drive the modernisation of IaaS workloads toward PaaS where appropriate Take ownership of the perimeter and internal network security. specific responsibility for the configuration and optimisation of Fortigate Firewalls, SD-WAN interconnects, and switching fabric to support a flexible, hybrid workforce Manage ...

This is an excellent opportunity for Deskside Support Role professionals to be part of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include … deployment and patching. Develop, test, and deploy automated scripts ( PowerShell, Python, or Bash ) to streamline routine maintenance, provisioning, and configuration tasks. Manage and enforce security and group policies within Active Directory, Azure AD, and Okta for identity and access management. Oversee and standardize the configuration, deployment, and imaging process ...

This is an excellent opportunity for Deskside Support Role professionals to be part of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include … deployment and patching. Develop, test, and deploy automated scripts ( PowerShell, Python, or Bash ) to streamline routine maintenance, provisioning, and configuration tasks. Manage and enforce security and group policies within Active Directory, Azure AD, and Okta for identity and access management. Oversee and standardize the configuration, deployment, and imaging process ...

junior and mid-level cloud engineers. Review designs, project plans, and delivery approaches, constructively challenging where required. Work closely with Project Managers, Cyber Security, Testing, Networking, and Application teams. Represent the cloud engineering team during project delivery and stakeholder discussions. Documentation & Governance Produce high-quality technical design documents, operational … handover documentation, and runbooks. Ensure adherence to organisational standards, security policies, and governance frameworks. Advocate for best practices in cloud architecture, DevOps, and SRE disciplines. Essential Skills & Experience Proven experience leading cloud or SRE initiatives in complex environments. Strong DevOps background with hands-on cloud delivery experience. Solid expertise ...