1 to 25 of 99 Network Security Jobs in the South East

Security Architect (Network Security) Location -Warwick/Wokingham/Hybrid About the Role We are seeking an experienced Security Architect (Network Security) to design, implement, and maintain enterprise-grade network security solutions. This role will play a critical part in safeguarding infrastructure, ensuring compliance with global standards, and driving a proactive security posture across the organization. You will work closely with cross-functional IT teams, influence security strategy, and provide expert guidance on best practices in a highly regulated environment. Key Responsibilities Design, architect, and maintain network security infrastructure including Firewalls, IDPS, Proxies, Load Balancers, VPNs, and WAFs. Develop and manage firewall policies, network access controls, IAM … solutions, MFA, RBAC, and privilege management . Ensure alignment of security measures with compliance standards (GDPR, HIPAA, PCI DSS). Conduct regular security audits and assessments to identify and remediate risks. Apply industry frameworks such as NIST Cybersecurity Framework, ISO 27001, CIS Controls . Oversee and enhance security technologies: SIEM, vulnerability management, cloud security (OCI/ More ❯

Security Analyst (Network & Support) Location - London (Hybrid) Duration - 6 Months (Initially) Rate - £450 (A day) IR35 - Outside IR35 Summary To be part of Digital Services, actively contributing as a member of the Infrastructure and Operations Team to support and develop the Network Infrastructure, Services, and Security. Provide 3rd line support for all wired, Wi-Fi, and remote … access network services to staff, students, contractors, and visitors. Act as a key point of reference in network security, contributing to the implementation, development, provisioning, and operational support of network dependencies. The post holder will be expected to support the designing, implementation, and maintenance of our client's Network Security Infrastructure to protect against … cyber threats. Accountabilities and Responsibilities Security Operations Support Serve as a reference point for network security across IT teams, providing guidance and specialised expertise on security measures. Conduct vulnerability assessments, security audits, and continuous monitoring of network traffic for anomalies using advanced security tools. Collaborate with IT teams to ensure security measures More ❯

Network Security Engineer Network Security/Penetration Testing/CREST/CSTL/API Testing/Config Reviews/Infrastructure/Outside IR35/West London We’re seeking an experienced Network Security Engineer to support a major multi-phase security testing project. You’ll conduct penetration tests, configuration reviews, and infrastructure assessments … contributing to a high-profile programme of work extending into next year. Required Strong background in network and infrastructure security. Experience performing penetration testing, configuration reviews, and API testing. Knowledge of “classic” CHECK-style testing methodologies. CREST, CSTL or CTL certification (Team Member or Team Leader level). Ability to deliver high-quality reports and communicate technical findings clearly. … Hands-on experience across infrastructure, networking, and external testing. Desirable Experience working within CHECK or other accredited testing schemes. Strong understanding of secure network architecture and hardening practices. Previous consultancy or project-based testing experience. Contract Details Outside IR35 West London (on-site presence required for majority of testing) 0-hours contract – project-based work, phase by phase Initial More ❯

Network Security Engineer Network Security/Penetration Testing/CREST/CSTL/API Testing/Config Reviews/Infrastructure/Outside IR35/West London We’re seeking an experienced Network Security Engineer to support a major multi-phase security testing project. You’ll conduct penetration tests, configuration reviews, and infrastructure assessments … contributing to a high-profile programme of work extending into next year. Required Strong background in network and infrastructure security. Experience performing penetration testing, configuration reviews, and API testing. Knowledge of “classic” CHECK-style testing methodologies. CREST, CSTL or CTL certification (Team Member or Team Leader level). Ability to deliver high-quality reports and communicate technical findings clearly. … Hands-on experience across infrastructure, networking, and external testing. Desirable Experience working within CHECK or other accredited testing schemes. Strong understanding of secure network architecture and hardening practices. Previous consultancy or project-based testing experience. Contract Details Outside IR35 West London (on-site presence required for majority of testing) 0-hours contract – project-based work, phase by phase Initial More ❯

An exciting opportunity for a passionate Network Security Engineer to join a unique, multi-national Information Management function. Ideal candidates should be committed to protecting our critical systems and ensuring the integrity and security of our network infrastructure. Salary : Circa £50,000 depending on experience + shift allowance Dynamic (hybrid) working : 5 days per week on … site due to workload classification, working a 24/7 Shift Pattern Security Clearance : British Citizen This role will require DV Clearance. Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks … BPSS) and a Security Check (SC) clearance, which are managed by the MBDA Personnel Security Team. What we can offer you: Company bonus : Up to £2,500 (based on company performance and will vary year to year) Pension : maximum total (employer and employee) contribution of up to 14% Overtime: opportunity for paid overtime Flexi Leave: Up to More ❯

Senior Network Engineer Bedford £50,169 per annum Permanent Full Time (will consider Part-Time Applications) Design, implement, and maintain robust, secure, and scalable network infrastructure solutions. Ensure high availability, performance, and security of bphas network systems while mentoring junior staff and collaborating across IT teams. Key Responsibilities Design and develop network architecture strategies aligned … with business needs and industry standards. Implement and manage network security measures (firewalls, VPNs, IDS/IPS). Configure and maintain routers, switches, wireless systems, and firewalls. Deploy scalable, high-performance network solutions with minimal downtime. Conduct regular network maintenance, updates, and upgrades. Perform security audits and vulnerability assessments. Respond to and mitigate network security incidents. Automate network tasks and processes using scripting tools. Maintain comprehensive network documentation and diagrams. Collaborate with IT teams and third-party vendors on network-related projects. Provide technical guidance and mentorship to team members. Stay current with emerging network technologies and trends. Key Performance Indicators High network uptime and minimal downtime. More ❯

Network & Security Consultant (Contract) Location: Fully Remote (UK-based) Rate: Up to £500 per day (Outside of IR35) Duration: 3 months strong potential for extension Our client, a leading cyber security and managed services provider, is seeking an experienced Network & Security Consultant to support the delivery of high-performance, secure infrastructure across enterprise and service … provider environments. You’ll play a key role in designing, implementing and optimising network and security solutions that enhance reliability, scalability and resilience, helping clients strengthen their security posture and operational efficiency. What you’ll do Design, configure and deliver network and security solutions Configure, maintain and troubleshoot routers, switches, firewalls and load balancers Implement … enterprise networking (LAN/WAN, routing, IP, DNS) Strong background in firewall administration (Check Point, Fortinet, Palo Alto, Cisco ASA/FTD) Hands-on experience troubleshooting complex multi-site network issues Professional certifications such as CCNA/CCNP, CCSA or PCNSA preferred Familiarity with ITIL frameworks and multi-client service environments Excellent communication and problem-solving skills Experience with More ❯

Blue Cube Security is a trusted leader in Information and Cyber Security, serving organisations across the UK for over 25 years. As one of the country's most established security solution providers, we hold multiple industry accreditations, ISO certification, and have years of experience in our field. In recent years, we’ve expanded our capabilities to include … Professional Services and Managed Security Services, enabling us to deliver solutions tailored to the evolving needs of our clients. As our business continues to grow, we’re looking for skilled professionals to join our Cynergy Services team. The purpose of this role is to provide security consultancy and engineering services to Blue Cube Security customers, delivering security designs and building new security infrastructure helping to assist customers with the delivery of new functionality and service improvements. You will have design authority responsibilities for some elements of security infrastructure and be responsible for implementing those designs. This role also provides a critical issue function to assist with the resolution of complex problems and address any More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team!Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police at … either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do:As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key Responsibilities … Utilise network management tools to monitor network and voice traffic loads and performance metrics, ensuring service levels are met. Create insightful reports and proposals for network improvements to support business needs. Identify and resolve operational problems and implement necessary network changes and maintenance routines. Coach and mentor junior network engineers, fostering a culture of best More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team! Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police at … either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do: As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key Responsibilities … Utilise network management tools to monitor network and voice traffic loads and performance metrics, ensuring service levels are met. Create insightful reports and proposals for network improvements to support business needs. Identify and resolve operational problems and implement necessary network changes and maintenance routines. Coach and mentor junior network engineers, fostering a culture of best More ❯

Job Title: Senior Network Security Engineer Location: Kidlington or Southampton Contract Type: Temporary Daily Rate: £450 - outside IR35 Contract Length: 16 months Join Our Team!Are you an experienced Network Security Engineer ready to make an impact in the public services sector? We are looking for talented individuals to join our client Thames Valley Police at … either their offices in Kidlington or the Hampshire Police Offices in Southampton. What You'll Do:As a Senior Network Security Engineer, you will play a crucial role in maintaining and enhancing our wide area and local area communications network infrastructure. Your expertise will ensure the security and efficiency of our network operations. Key Responsibilities … Utilise network management tools to monitor network and voice traffic loads and performance metrics, ensuring service levels are met. Create insightful reports and proposals for network improvements to support business needs. Identify and resolve operational problems and implement necessary network changes and maintenance routines. Coach and mentor junior network engineers, fostering a culture of best More ❯

IT Security Engineer Feltham (Hybrid) £45,000 - £55,000 Base + Benefits Overview The IT Security Engineer is responsible for designing, implementing, and maintaining the security controls that protect the organization’s systems, networks, and data. This role works closely with IT, DevOps, and business teams to ensure that security is embedded throughout technology operations and … architecture. The IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce segmentation and least-privilege … access controls. Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. More ❯

Adecco are pleased to be recruiting for a Network Architect to work within the Thames Valley Police Force. Location: Kidlington (Thames Valley Police HQ) Daily Rate: £650 per day outside of IR35 Contract End Date: May 2026 Temporary Contract Working Pattern: Full Time 37 hours per week Monday to Friday 8.40am to 5pm Are you a visionary Network Architect with a passion for building robust and secure network infrastructures? Join our client in the public services sector and lead exciting projects that make a real difference! We are looking for a talented individual to provide expert technical leadership and design oversight across a variety of network infrastructure initiatives. What You'll Be Doing: As a … Network Architect, you will: Lead Network Design & Architecture: Spearhead the design and implementation of complex network solutions that align perfectly with both business and technical requirements. Provide critical oversight of third-party network designs, especially those utilising Cisco and Fortinet technologies. Design SD-WAN Solutions: Take charge of designing, deploying, and managing Fortinet SD-WAN environments More ❯

and customers with an integrated energy offering. Delivering our strategy sustainably is fundamental to achieving our ambition to be a net zero company by 2050 or sooner! The Cyber Security Incident Response Team (CSIRT), part of Counter Threat & Engineering (CT&E), responds to digital security threats and incidents globally from bp hubs in Houston, Sunbury, Kuala Lumpur, Pune … and Singapore. The Security Operations Center (SOC) raises incidents to CSIRT, which conducts long-term investigations using digital forensics, advanced techniques, and collaborating across bp. Team members must understand bps business segments and address a broad range of security-related questions. You will help ensure enterprise security, enabling safe and secure business operations as part of this … global team. Key Accountabilities Support the bp SOC as an escalation point for security events and incidents. Conduct digital forensic investigations on high-priority incidents to include functions such as host (disk and memory) forensics, network forensics and log analysis. Work across Digital Security and the bp business functions to partner on incidents and to ensure all More ❯

and customers with an integrated energy offering. Delivering our strategy sustainably is fundamental to achieving our ambition to be a net zero company by 2050 or sooner! The Cyber Security Incident Response Team (CSIRT), part of Counter Threat & Engineering (CT&E), responds to digital security threats and incidents globally from bp hubs in Houston, Sunbury, Kuala Lumpur, Pune … and Singapore. The Security Operations Center (SOC) raises incidents to CSIRT, which conducts long-term investigations using digital forensics, advanced techniques, and collaborating across bp. Team members must understand bps business segments and address a broad range of security-related questions. You will help ensure enterprise security, enabling safe and secure business operations as part of this … global team. Key Accountabilities Support the bp SOC as an escalation point for security events and incidents. Conduct digital forensic investigations on high-priority incidents to include functions such as host (disk and memory) forensics, network forensics and log analysis. Work across Digital Security and the bp business functions to partner on incidents and to ensure all More ❯

and customers with an integrated energy offering. Delivering our strategy sustainably is fundamental to achieving our ambition to be a net zero company by 2050 or sooner! The Cyber Security Incident Response Team (CSIRT), part of Counter Threat & Engineering (CT&E), responds to digital security threats and incidents globally from bp hubs in Houston, Sunbury, Kuala Lumpur, Pune … and Singapore. The Security Operations Center (SOC) raises incidents to CSIRT, which conducts long-term investigations using digital forensics, advanced techniques, and collaborating across bp. Team members must understand bps business segments and address a broad range of security-related questions. You will help ensure enterprise security, enabling safe and secure business operations as part of this … global team. Key Accountabilities Support the bp SOC as an escalation point for security events and incidents. Conduct digital forensic investigations on high-priority incidents to include functions such as host (disk and memory) forensics, network forensics and log analysis. Work across Digital Security and the bp business functions to partner on incidents and to ensure all More ❯

Location: London Department: Infrastructure & Technology Reports To: Director of Infrastructure/CIO Role Overview The Head of Networks will own the strategy, design, and delivery of the organisation’s network infrastructure across all European data centres, offices, and customer environments. This pivotal leadership role ensures that all network solutions are secure, scalable, resilient, and aligned with business growth. … You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … network infrastructure across multiple European sites and data centres. Develop and maintain a multi-year network roadmap , aligning technology capabilities with business strategy and digital transformation initiatives. Establish network standards, policies, and governance frameworks to ensure consistency, compliance, and scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and More ❯

Location: London Department: Infrastructure & Technology Reports To: Director of Infrastructure/CIO Role Overview The Head of Networks will own the strategy, design, and delivery of the organisation’s network infrastructure across all European data centres, offices, and customer environments. This pivotal leadership role ensures that all network solutions are secure, scalable, resilient, and aligned with business growth. … You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … network infrastructure across multiple European sites and data centres. Develop and maintain a multi-year network roadmap , aligning technology capabilities with business strategy and digital transformation initiatives. Establish network standards, policies, and governance frameworks to ensure consistency, compliance, and scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and More ❯

Location: London Department: Infrastructure & Technology Reports To: Director of Infrastructure/CIO Role Overview The Head of Networks will own the strategy, design, and delivery of the organisation’s network infrastructure across all European data centres, offices, and customer environments. This pivotal leadership role ensures that all network solutions are secure, scalable, resilient, and aligned with business growth. … You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … network infrastructure across multiple European sites and data centres. Develop and maintain a multi-year network roadmap , aligning technology capabilities with business strategy and digital transformation initiatives. Establish network standards, policies, and governance frameworks to ensure consistency, compliance, and scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and More ❯

We are seeking a highly skilled and experienced Network Analyst/Architect to join our dynamic IT team. The ideal candidate will play a crucial role in designing, implementing, and optimizing our enterprise network infrastructure, with a strong focus on cloud networking, automation techniques, and traditional network architectures. You will be responsible for ensuring the seamless integration … of cloud-based and on-premise networking technologies, driving performance, scalability, and security across the entire network environment. This position demands a forward-thinking professional who can lead in developing innovative solutions while maintaining and improving our current systems. You will collaborate with IT colleagues, external vendors, and key business stakeholders to ensure that the network infrastructure … aligns with our organization's strategic goals and technology initiatives. Key Responsibilities: Design, Implement, and Manage Network Infrastructure Lead the design and deployment of robust, scalable, and high-performing network architectures, including LAN, WAN, WiFi, and cloud networking solutions. Expertise in routing, switching, and network segmentation to support business operations across multiple sites and cloud environments. Design More ❯

The Role: Leidos, a Global IT Solutions Provider specialising in large scale implementations involving science, engineering, and technology, require a Cyber Defence Analyst to work in their CSOC (Cyber Security Operations Centre) Team. The Cyber Defence Analyst will be expected to contribute to the growth and development of the CSOC. You will work with a wide variety of stakeholders … to ensure, the Leidos CSOC, a Defensive Cyber Security capability, can support a customers Cyber Resilience, protecting them with a 24 x 7 Threat Detection and Response service, mitigating their risk of Cyber Attack. The successful candidate will be able to demonstrate experience from a CSOC background or be able to demonstrate sufficient transferable Cyber Security knowledge, qualifications … succeed in the role the candidate must be capable of working under pressure, delivering on multiple customer accounts and have an appetite to progress and develop their own Cyber Security career. The role will be working within the CSOC, adhering to a matrix managed environment, reporting operationally to the CSOC Lead and accountable to the CSOC Manager. What will More ❯

Network Architect needed in Oxford, HYBRID Paying £650 per ref372263 Full time hours on a temporary basis OUTSIDE IR35 About the Role: We are seeking a highly skilled and experienced Network Architect to lead the design and implementation of robust, secure, and scalable network solutions. This is a strategic role that will shape the future of our … network infrastructure, with a strong focus on Cisco and Fortinet technologies, SD-WAN, and public sector procurement. Key Responsibilities: Network Design & Architecture Lead the development of complex network solutions, ensuring they meet both business and technical requirements. Provide expert review and oversight of third-party network designs, particularly those involving Cisco and Fortinet. SD-WAN Solutions … in evaluating and validating third-party SD-WAN proposals and implementations. Cisco Infrastructure Deliver and support Cisco Catalyst Centre deployments. Offer architectural guidance and assurance for third-party Cisco network designs. Network Security Apply deep expertise in network security protocols and firewall configurations, with a focus on Fortinet and Cisco products. Ensure security best 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-on engineering role within a fast-moving digital asset business. The primary purpose of this role is … to act as a backup engineer for the Senior Network Engineer , providing operational support for all aspects of networking when required. Additionally, this role will provide operational support for Platform Engineering , ensuring stability and efficiency across systems. While this is primarily an operations-focused position (around 75% operational support and 25% project work) , there will be opportunities to contribute … to ongoing projects and infrastructure initiatives. Working closely with both Network and Platform Support Engineers, this role offers scope for professional growth, flexibility, and exposure across a wide range of technologies. The ideal candidate will bring a combination of networking and automation skills , with a strong desire to grow into a Platform Networking Engineer — someone who can solve platform 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-on engineering role within a fast-moving digital asset business. The primary purpose of this role is … to act as a backup engineer for the Senior Network Engineer , providing operational support for all aspects of networking when required. Additionally, this role will provide operational support for Platform Engineering , ensuring stability and efficiency across systems. While this is primarily an operations-focused position (around 75% operational support and 25% project work) , there will be opportunities to contribute … to ongoing projects and infrastructure initiatives. Working closely with both Network and Platform Support Engineers, this role offers scope for professional growth, flexibility, and exposure across a wide range of technologies. The ideal candidate will bring a combination of networking and automation skills , with a strong desire to grow into a Platform Networking Engineer — someone who can solve platform 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-on engineering role within a fast-moving digital asset business. The primary purpose of this role is … to act as a backup engineer for the Senior Network Engineer , providing operational support for all aspects of networking when required. Additionally, this role will provide operational support for Platform Engineering , ensuring stability and efficiency across systems. While this is primarily an operations-focused position (around 75% operational support and 25% project work) , there will be opportunities to contribute … to ongoing projects and infrastructure initiatives. Working closely with both Network and Platform Support Engineers, this role offers scope for professional growth, flexibility, and exposure across a wide range of technologies. The ideal candidate will bring a combination of networking and automation skills , with a strong desire to grow into a Platform Networking Engineer — someone who can solve platform More ❯