17 of 17 Contract Network Security Jobs in London

Role: Network & Security Engineer Rate: Inside IR35 Location: Full time onsite in Harmondsworth, West Drayton Duration: 6-months initially The Role We are looking for Network L2 and L3 admins for one of the major airlines in the UK. This role is customer-facing and requires strong technical hands-on and good communication skills as outlined below. … OSI layers 1-7, with the ability to apply analytical and troubleshooting skill sets to solve complex problems across all networking disciplines * Monitor the performance and capability of the network using diversified tools. Identify the malfunctioning of hardware, software, and alerts events. * Triage or troubleshoot the issues & incident, within the defined areas. Follow Standard Operating Manuals and coordinate with … resolutions. * Develop strong relationships with the customer and all other support departments. * Experience in supporting the Cisco WLAN Controllers, SSID and Access Points * Experience on Implementing and troubleshooting Firewalls Security, VPN's, NAT policy, Software Patch management * Configuring and troubleshooting routing & switching protocols: Set up and troubleshoot protocols like OSPF, BGP, EIGRP, VLANs, STPs, VRF, MC-LAG, FHRP, DMVPN More ❯

Network & Security L2 Administrator 6 Month contract initially Based: Onsite - West Drayton Rate: £400 - £425 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We a great … opportunity for a number of Network & Security L2 Administrators. Key Responsibilities: * Candidates should have a strong working knowledge of OSI layers 1-7, with the ability to apply analytical and troubleshooting skill sets to solve complex problems across all networking disciplines * Monitor the performance and capability of the network using diversified tools. Identify the malfunctioning of hardware … resolutions. * Develop strong relationships with the customer and all other support departments. * Experience in supporting the Cisco WLAN Controllers, SSID and Access Points * Experience on Implementing and troubleshooting Firewalls Security, VPN's, NAT policy, Software Patch management * Configuring and troubleshooting routing & switching protocols: Set up and troubleshoot protocols like OSPF, BGP, EIGRP, VLANs, STPs, VRF, MC-LAG, FHRP, DMVPN More ❯

Role: Network Engineer Location & Travel: Work from home. However, will need to go to London for some customer meetings 3-4 times a month Employment Type: Contract Outside of IR35 Duration: 2 to 3 Months Candidate Should be able to start immediately Clearance: Should be SC cleared or Eligible About Company: Prodapt is the largest & fastest growing specialized firm … and digital platform companies in the business of connectedness. Prodapt builds, integrates, and operates solutions enabling next-generation technologies and innovations. Role Details: Overview Seeking a skilled and motivated Network Engineer for a high-priority Network Migration Project. The ideal candidate will have extensive experience in networking and security, with expertise in migration, configuration, and troubleshooting across … Cisco LAN/WAN environments, F5 load balancing, and Checkpoint firewalls. The Network Engineer will work closely with customer and third-party consulting team to design, implement, and optimize network infrastructure while ensuring the security, scalability, and reliability of the systems during the migration process. As part of the migration project, candidate will be responsible for providing More ❯

Network Security Project Manager wanted for a 3 -6 month contract based in central London £450 a day Inside IR35 5 days in office , may go hybrid working. Must be a highly organized , hands on and technically proficient Project Manager with a strong background in network security to lead and coordinate critical infrastructure and cybersecurity projects. … This role operates on a 24/7 shift rotation , ensuring continuous oversight of security initiatives and incident response coordination. Key Responsibilities and skills Lead and manage end-to-end delivery of network security projects, ensuring alignment with business goals and compliance standards. Coordinate with cross-functional teams including SOC, NOC, IT operations, and external vendors. Oversee … implementation of firewalls, intrusion detection/prevention systems, VPNs, LAN/WAN and other network security technologies. Monitor project progress during all shifts, ensuring timely escalation and resolution of issues. Maintain detailed project documentation, including risk assessments, change logs, and status reports. Support incident response efforts and post-incident reviews during off-hours. Ensure adherence to cybersecurity frameworks More ❯

Our telecoms client is looking for a Network Solution Architect for 3 months initially with good possibility of extension. The role is hybrid with at least 2 days per week in London. Due to nature of the role candidates need to either hold SC clearance or be eligible. The rate is £300-£315 per day outside IR35. The Technical … Solution Architect provides end to end technical leadership for complex network security deployments and migrations. The TSA owns solution integrity from high level architecture through to hand over, acting as the single technical point of contact for customers. The role combines deep multi domain engineering expertise (LAN, WAN, firewalls, F5, Zscaler ZPA/ZIA, routing protocols such as … BGP/OSPF) with exceptional soft skills, documentation discipline and change management. Required Skills & Experience: * Technical depth o 8 + years in network security architecture or senior engineering across enterprise environments. o Hands on design/migration of at least two of the following at scale: Check Point R8x firewalls, Cisco or Juniper LAN and WAN, F5 BIG More ❯

Senior Network Security Engineer – 3-Month Initial Contract (Extension likely) Location: Onsite in West Drayton/Hayes, UK (5 Days per Week) Start: ASAP IR35: Outside IR35 Security Clearance: Will be sponsored for eligible candidates We’re not looking for just another engineer - we’re after a seasoned Network Security expert who’s ready to … infrastructure at its core. If you thrive in a fast-moving, hands-on environment and want to work with cutting-edge tech, this contract is built for you. Senior Network Security Engineer The Tech Stack You’ll Own: Fortinet SD-WAN – Core to the network transformation Fortinet Firewalls – Design and deployment Cisco Nexus – High-performance switching environments … Cisco Wi-Fi/LAN Routing & Switching – Solid fundamentals essential Firewall & Security Architecture – Design, configure, secure Configuration Mastery – You’ll write and load full network configs What Makes This Role Different? Security Clearance provided – We’ll sponsor you if eligible. Outside IR35 – Work with freedom and flexibility. Real Possibility of Extension – This is just phase one of More ❯

Project Manager – Networking Wea re looking for a strong Network Project Manager who is committed to delivering innovative IT solutions and high-performance network infrastructure. We are seeking an experienced and proactive Network Project Manager to oversee the delivery of complex network projects, ensuring timely execution, budget control, and alignment with business objectives. Key Responsibilities and … Required Skills Plan, coordinate, and manage end-to-end network infrastructure projects including LAN/WAN upgrades, cloud integration, and network security enhancements. Collaborate with stakeholders, vendors, and cross-functional teams to define project scope, goals, and deliverables. Develop detailed project plans, schedules, budgets, and resource allocations. Monitor and track project progress, identifying risks and implementing mitigation … strategies. Ensure compliance with organizational standards, policies, and best practices. Lead technical teams to ensure proper installation, configuration, and maintenance of network systems. Provide regular status reports and updates to senior management and stakeholders. Proven experience (5+ years) as a Network Project Manager or in a similar role within IT infrastructure. Strong understanding of network technologies (e.g. More ❯

home (WFH) + 3 days/week working on site in London (Paddington). Key skills, experience + tasks will include: Providing end-to-end technical design for complex network security architecture deployments and migrations. Must have multi-domain expertise including: LAN/WAN, firewalls, F5, Zscaler ZPA/ZIA, and routing protocols like BGP/OSPF, route … WANs, F5 BIG-IP, LTM/GTM/AFM, Zscaler ZIA, ZPA, SD-WAN. Validating/integrating component designs for LAN, firewall, F5, WAN, VPN, ZPA/ZIA + security controls. Owning overall solution architecture, low-level designs (LLD), solution integrity from high-level architecture through to handover, acting as the single technical point of contact for external customers. …/CR forms), rollback procedures, and run books. Reviewing implementation artefacts (configs, Ansible/Terraform scripts, F5 iRules) to ensure alignment to LLD. Qualifications: CCNP/CCIE Enterprise or Security, JNCIP/JNCIE, F5 CTS, Check Point CCSE, Zscaler ZCCA IA/ZCCA IAE, TOGAF, ITILv4. Providing 24/7 escalation cover to meet migration deadlines when rostered. Advantageous More ❯

home (WFH) + 3 days/week working on site in London (Paddington). Key skills, experience + tasks will include: Providing end-to-end technical design for complex network security architecture deployments and migrations. Must have multi-domain expertise including: LAN/WAN, firewalls, F5, Zscaler ZPA/ZIA, and routing protocols like BGP/OSPF, route … WANs, F5 BIG-IP, LTM/GTM/AFM, Zscaler ZIA, ZPA, SD-WAN. Validating/integrating component designs for LAN, firewall, F5, WAN, VPN, ZPA/ZIA + security controls. Owning overall solution architecture, low-level designs (LLD), solution integrity from high-level architecture through to handover, acting as the single technical point of contact for external customers. …/CR forms), rollback procedures, and run books. Reviewing implementation artefacts (configs, Ansible/Terraform scripts, F5 iRules) to ensure alignment to LLD. Qualifications: CCNP/CCIE Enterprise or Security, JNCIP/JNCIE, F5 CTS, Check Point CCSE, Zscaler ZCCA IA/ZCCA IAE, TOGAF, ITILv4. Providing 24/7 escalation cover to meet migration deadlines when rostered. Advantageous More ❯

months Location: Fully remote/WFH Overview: As Zscaler Consultant you will be a senior member of the team responsible for designing, configuring, implementing, and optimizing Zscaler AI Firewall security solutions for our client. Your deep expertise in Zscaler products, familiarity with AI solutions, and understanding of security operations will be instrumental in securing our customers' AI implementations … network by ensuring efficient traffic inspection and protection. Key Responsibilities: Solution Design: Lead the design of Zscaler-based AI Firewall solutions, considering the customer's unique requirements, AI use cases and industry best practices. Create comprehensive architecture plans and AI Firewall security policies. Implementation: Oversee the deployment and configuration of Zscaler AI Firewall, including security policies and … detections. Collaborate with cross-functional teams to integrate AI Firewall services into broader Zscaler solutions and customer security operations. AI Network Security: Ensure that Zscaler AI Firewall deployments integrate smoothly into customer AI implementations and provide robust security measures while protecting customer data and privacy. Implement policies and access controls to protect against cyber threats effectively. More ❯

months Location: Fully remote/WFH Overview: As Zscaler Consultant you will be a senior member of the team responsible for designing, configuring, implementing, and optimizing Zscaler AI Firewall security solutions for our client. Your deep expertise in Zscaler products, familiarity with AI solutions, and understanding of security operations will be instrumental in securing our customers’ AI implementations … network by ensuring efficient traffic inspection and protection. Key Responsibilities: Solution Design: Lead the design of Zscaler-based AI Firewall solutions, considering the customer's unique requirements, AI use cases and industry best practices. Create comprehensive architecture plans and AI Firewall security policies. Implementation: Oversee the deployment and configuration of Zscaler AI Firewall, including security policies and … detections. Collaborate with cross-functional teams to integrate AI Firewall services into broader Zscaler solutions and customer security operations. AI Network Security: Ensure that Zscaler AI Firewall deployments integrate smoothly into customer AI implementations and provide robust security measures while protecting customer data and privacy. Implement policies and access controls to protect against cyber threats effectively. More ❯

CCIE R&S Network Engineer My client is seeking an accomplished and highly experienced CCIE (Routing & Switching) Network Engineer to join their dynamic team. The ideal applicant will be responsible for analyzing, managing, and optimizing network performance to ensure secure and uninterrupted connectivity across all client operations. This role demands comprehensive expertise in network protocols, troubleshooting … skills, and a proactive approach to network administration. Key Responsibilities * Monitor and sustain optimal network performance. * Analyze network traffic to identify issues and opportunities for enhancement. * Deliver both on-site and remote customer support. * Develop and execute network optimization initiatives. * Regular security assessments to address and mitigate risks. * Configure and manage network hardware and … software components. * Collaborate with IT teams to design and implement network infrastructure projects. * Provide ongoing technical support and resolve network-related problems. * Produce and maintain comprehensive network documentation and reports. * Assessing emerging network technologies and industry trends. To be considered for this role candidates must have * Experience as a CCIE Network Engineer supporting NOC * Extensive More ❯

critical threat detection and incident response capabilities to a number of global financial clients.You’ll be part of a dynamic DFIR team tasked with identifying, analysing, and responding to security incidents, proactively hunting for advanced threats, and contributing to the enhancement of threat detection strategies. Key Responsibilities Incident Response – Detect, document, and resolve security incidents efficiently Endpoint Forensics … Analyse host-based artifacts to reconstruct timelines and attacker activity Security Analytics – Extract meaningful insights from large datasets for reporting, detection, and hunting Threat Hunting – Identify unknown threats that evade traditional controls Intrusion Detection – Tune anomaly detection tools for reliable, actionable output Behavioral Analysis – Implement user anomaly detection criteria to spot insider threats Countermeasures – Design and implement control strategies … to disrupt emerging threats Required Skills & Relevant experience Strong understanding of Windows and Linux environments Experience with network security , packet analysis , and host-level forensics Comfortable working with large datasets, logs, and SIEM platforms for threat detection Capable of building timelines and performing forensic reconstruction Excellent written and verbal communication skills Contract Details: Outside IR35 Fully Remote (Must More ❯

Senior Network Engineer Juniper As a Juniper Network Engineer, you will be responsible for designing, deploying, managing, and troubleshooting Juniper-based network solutions. Youll work with a team of network professionals to ensure seamless operations, optimize performance, and maintain the highest levels of security and uptime. Key Responsibilities: Design, configure, and maintain Juniper routers, switches … and firewalls (MX, EX, SRX series) Implement and troubleshoot BGP, OSPF, MPLS, and VPN solutions Monitor network performance and perform tuning to ensure optimal efficiency Ensure network security through policies, firewall rules, and regular audits Perform firmware upgrades, patching, and regular system maintenance Provide Tier 2/3 support and troubleshooting for escalated network issues Maintain … comprehensive documentation of network architecture and configurations Work collaboratively with internal teams and external vendors Required Skills and Qualifications: Proven experience with Juniper networks Strong hands-on experience with Junos OS Solid understanding of routing protocols (BGP, OSPF, RIP, MPLS) Experience with network security, firewall configurations, and VPNs Familiarity with network monitoring tools (SolarWinds, Nagios, etc. More ❯

Senior Network Engineer – Juniper As a Juniper Network Engineer, you will be responsible for designing, deploying, managing, and troubleshooting Juniper-based network solutions. You’ll work with a team of network professionals to ensure seamless operations, optimize performance, and maintain the highest levels of security and uptime. Key Responsibilities: Design, configure, and maintain Juniper routers … switches, and firewalls (MX, EX, SRX series) Implement and troubleshoot BGP, OSPF, MPLS, and VPN solutions Monitor network performance and perform tuning to ensure optimal efficiency Ensure network security through policies, firewall rules, and regular audits Perform firmware upgrades, patching, and regular system maintenance Provide Tier 2/3 support and troubleshooting for escalated network issues … Maintain comprehensive documentation of network architecture and configurations Work collaboratively with internal teams and external vendors Required Skills and Qualifications: Proven experience with Juniper networks Strong hands-on experience with Junos OS Solid understanding of routing protocols (BGP, OSPF, RIP, MPLS) Experience with network security, firewall configurations, and VPNs Familiarity with network monitoring tools (SolarWinds, Nagios More ❯

Network Architect £600 - £700 per day - Inside IR35 Hybrid - London DV Cleared About the Role Our confidential government client requires an experienced Network Architect to lead the design and delivery of strategic network solutions. This is a high-impact role within a complex, secure environment, where your architectural expertise will support national security priorities. Key Responsibilities … Deliver high-level and low-level network designs (HLD/LLD) in line with project milestones Produce comprehensive artefacts including: Site-specific network architectures Passive infrastructure layouts (fibre, copper - vertical & horizontal) Active equipment installation designs Rack diagrams, patching schedules, and cabling plans Collaborate with multiple stakeholders including: Local IT teams Other Government Departments (OGDs) System owners and integrators … Drive end-to-end system thinking including: LAN/WAN design and implementation WAN provisioning and circuit dependencies Network security and encryption technologies (e.g., cryptos) Dependencies on EUDs, storage, and power systems (UPS) Work across the full system delivery lifecycle: Service Design, Transition, Acceptance, and into Live Collaborate with Service Architects on Assurance and Gate Reviews Analyse technical More ❯

for a highly experienced Azure DevOps Engineer who can Design, build and deploy new Infrastructure as Code (IaC) Terraform platform in Azure. Skills: Remit of IaC within Azure is Network and Policy scripted deployments. Output is to establish IAC scripts to deploy following Azure services: Virtual Networks (vNets) Powerplatform expert Subnets (Route tables configured to use Palo Alto Cloud … NGFW for any traffic destined outside the local subnet, with intra-subnet traffic routed locally to avoid creating UDRs) Azure PaaS Private Links (following the vWAN hub extension pattern) Network Security Groups (NSGs) with static configurations Virtual WAN (vWAN More ❯