1 to 25 of 63 Firewall Jobs in the City of London

IT budgeting, vendor management and continuous service improvement initiatives * Provide high-level technical oversight and guidance in areas including: Azure infrastructure management, network protocols (TCP/IP, DHCP, DNS), firewall operations (preferably FortiGate), WAN/LAN/VPN connectivity, Microsoft and Windows Server environments Requirements * Proven experience in infrastructure/IT operations management within a multi-site environment * Demonstrable experience More ❯

for the Service Desk Team * Set up and configure Local Area Networks (LANs), including hardware deployment and support * Coordinate with third-party MSPs for network and infrastructure management * Manage firewall operations and connectivity with ISPs * Oversee network IP addressing and VPN setups * Support business continuity through proactive incident management * Rapid deployment of site connectivity solutions, including 4G routers * Monitor network More ❯

troubleshooting Flexera agents across AWS and Azure environments. Apply infrastructure-as-code practices (Terraform, PowerShell) to automate deployment and standardise infrastructure operations. Overcome advanced networking challenges (DNS, static routes, firewall rules, security protocols) to enable agent-to-server connectivity. Work across legacy and bespoke environments , ensuring agent deployment succeeds in inconsistent architectures. Contribute to estate-wide architectural planning covering containerised More ❯

and troubleshooting within live network environments Design and implement network solutions tailored for performance, resilience, and security Collaborate with cybersecurity, DevOps, and infrastructure teams to ensure seamless operations Support firewall, VPN, and intrusion prevention configurations where relevant Document all configurations and processes in line with security compliance standards Essential Skills & Experience: Proven experience working with A10 Networks (Thunder ADC, CGNAT More ❯

My client, a leading multi-strategy hedge fund, is seeking an mid level (3-10 years of exp) Infrastructure Engineer to join their high-performing team. This individual will help support and evolve the firm’s multi-cloud technology estate More ❯

My client, a leading multi-strategy hedge fund, is seeking an mid level (3-10 years of exp) Infrastructure Engineer to join their high-performing team. This individual will help support and evolve the firm’s multi-cloud technology estate More ❯

for administration, monitoring and support tools  Very good knowledge of DevOps tools like Jenkins, Ansible, Artifactory  Good knowledge of common monitoring tools (ITRS Geneos, Zabbix,...)  Good network and firewall infrastructure understanding  Good understanding of multicast messaging  Project management skills to deliver medium scale projects Personal Attributes :  Team player  Self motivated  Strong analytical skills, follow-up capability and problem solving More ❯

for administration, monitoring and support tools Very good knowledge of DevOps tools like Jenkins, Ansible, Artifactory Good knowledge of common monitoring tools (ITRS Geneos, Zabbix,...) Good network and firewall infrastructure understanding Good understanding of multicast messaging Project management skills to deliver medium scale projects Personal Attributes : Team player Self motivated Strong analytical skills, follow-up capability and problem solving More ❯

issues. Microsoft 365 : Basic understanding and troubleshooting of Microsoft 365 software. Networking : Understanding and troubleshooting of networking, IP addresses, MAC addresses, DNS, internet connection issues, Wi-Fi issues, and firewall configuration. Printers : Understanding of printer errors, configurations, and reinstalling drivers. Project Installations : Installation of desktops, laptops, workstations, monitors, printers, routers, firewalls, switches, UPS, wireless access points, CCTV cameras, access control More ❯

reporting to the Information Security Manager. Responsible for ensuring that all servers and other IT related equipment is hardened against industry security best practices and standards. Performs audits of firewall(s), log management, intrusion detection systems, and content filtering controls (email, DLP and other technical controls). Conducts internal security audits and reviews as needed, together with appropriate recommendations and More ❯

reporting to the Information Security Manager. Responsible for ensuring that all servers and other IT related equipment is hardened against industry security best practices and standards. Performs audits of firewall(s), log management, intrusion detection systems, and content filtering controls (email, DLP and other technical controls). Conducts internal security audits and reviews as needed, together with appropriate recommendations and More ❯

within cloud ecosystems. Collaborate with engineering and DevSecOps teams to embed security by design. Required Skills and Experience AWS Expertise: AWS Audit Manager AWS Control Tower & SCPs AWS Macie, Firewall Manager, Access Analyzer AWS Network Reachability Analyzer AWS Cloud Adoption Framework AWS SHARR AWS Well-Architected Reviews Azure Expertise: Azure Defender for Cloud Azure Well-Architected Reviews & Advisor Azure Blueprints More ❯

within cloud ecosystems. Collaborate with engineering and DevSecOps teams to embed security by design. Required Skills and Experience AWS Expertise: AWS Audit Manager AWS Control Tower & SCPs AWS Macie, Firewall Manager, Access Analyzer AWS Network Reachability Analyzer AWS Cloud Adoption Framework AWS SHARR AWS Well-Architected Reviews Azure Expertise: Azure Defender for Cloud Azure Well-Architected Reviews & Advisor Azure Blueprints More ❯

Lead Solutions Architect (Managed Services & Technology Operations) Contract: 6 months+ (Outside IR35) Location: Central London (3 days on-site) Day rate: £700-£800 per day About the Role We're partnered with a global technology consultancy that delivers secure, high More ❯

Hands on experience and understanding of Docker and Kubernetes. Knowledge of Microservice architectures is a plus Ansible or Terraform knowledge is a plus Understanding of network concepts (switch, router, firewall, load balancer etc) and network vendors is a plus (Cisco, Palo Alto, Juniper etc). More ❯

Hands on experience and understanding of Docker and Kubernetes. Knowledge of Microservice architectures is a plus Ansible or Terraform knowledge is a plus Understanding of network concepts (switch, router, firewall, load balancer etc) and network vendors is a plus (Cisco, Palo Alto, Juniper etc). More ❯

Bonus Points) Experience or familiarity with the CyberSecurity industry. Understanding of common OS, Browser, OSI Stack, DNS, Domain Registration, TCP/IP and networking technologies. Good understanding of various firewall and web proxy technologies. Working knowledge of SIEM/TIP/SOAR platforms. Familiarity with JSON/RESTful API endpoints. Familiarity with Big Data concepts and the management of large More ❯

Bonus Points) Experience or familiarity with the CyberSecurity industry. Understanding of common OS, Browser, OSI Stack, DNS, Domain Registration, TCP/IP and networking technologies. Good understanding of various firewall and web proxy technologies. Working knowledge of SIEM/TIP/SOAR platforms. Familiarity with JSON/RESTful API endpoints. Familiarity with Big Data concepts and the management of large More ❯

Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and … network technologies, including Cisco IOS/NX-OS and JunOS platforms. Strong background in network monitoring, capacity management, and incident response . Hands-on experience with network security frameworks , firewall configuration (Cisco ASA, Palo Alto, Fortinet, etc.) , and telephony (SIP/VoIP) systems. Familiarity with cloud and hybrid networking (Azure, AWS, GCP) environments preferred. Strong understanding of ISO 27001, PCI More ❯

Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and … network technologies, including Cisco IOS/NX-OS and JunOS platforms. Strong background in network monitoring, capacity management, and incident response . Hands-on experience with network security frameworks , firewall configuration (Cisco ASA, Palo Alto, Fortinet, etc.) , and telephony (SIP/VoIP) systems. Familiarity with cloud and hybrid networking (Azure, AWS, GCP) environments preferred. Strong understanding of ISO 27001, PCI More ❯

Support Analyst - 2nd/3rd Line Support, Application Support, E-Trading, Financial/Banking An exciting and varied role working within a Trading House in The City .... Candidates at all levels will be considered, whether a passionate gamer who More ❯

The role focuses on ensuring secure, scalable, and reliable connectivity across multi-site and hybrid environments. Key Responsibilities Design and deploy Azure networking solutions (VNets, VPN Gateways, NSGs, Azure Firewall, WAF, Load Balancers, Application Gateway). Support hub-and-spoke topologies and hybrid connectivity models. Monitor and optimise network performance, troubleshoot incidents, and ensure stability across environments. Automate provisioning and … Strong track record in Azure networking and cloud infrastructure. Excellent knowledge of TCP/IP, DNS, DHCP, routing, firewalls, and related concepts. Experience with Azure services: VNet, App Gateway, Firewall & WAF, Network Watcher, Load Balancer. Hands-on scripting/automation skills with PowerShell, Azure CLI, and Terraform. Familiarity with network security principles and Azure-native tools. Strong problem-solving and More ❯

Location: London (Hybrid) Employment Type: Permanent Job Title: Network Engineer This Network Engineer will be responsible for designing, implementing, and managing secure, low-latency, and scalable network infrastructure across both cloud and physical environments and will be a critical hands More ❯

Location: London (Hybrid) Employment Type: Permanent Job Title: Network Engineer This Network Engineer will be responsible for designing, implementing, and managing secure, low-latency, and scalable network infrastructure across both cloud and physical environments and will be a critical hands More ❯

Contract Network Engineer London 3 days PW Rate: £500 PD (Inside IR35) 6-12 Month Contract Overview We are seeking a skilled Network and Systems Engineer on a contract basis to join our clients IT Operations team. In this role More ❯