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37 network security engineer jobs found in London

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Contract Spy
Jul 06, 2026
Duration not stated
Network Security Engineer – Vulnerability Management (Tufin & RSA).at Xoriant, London Canary Wharf, £Contract Rate
Contract Spy London Area, United Kingdom
Job Title: Network Security Engineer – Vulnerability Management (Tufin & RSA). Canary Wharf, UK Long Term Contract (Inside IR35) Hybrid (2 days a week)   Job Overview We are hiring a Network Security Engineer with strong expertise in Vulnerability Management, network security, and remediation practices . The ideal candidate should have hands-on experience with Tufin for firewall policy management and RSA Authentication Manager for secure access/authentication controls. The role involves identifying vulnerabilities, assessing risks, and driving effective remediation across enterprise environments. Key Responsibilities Identify, analyze, and manage network and system vulnerabilities across the environment Understand vulnerability impact and recommend appropriate fixes, remediation, and mitigation strategies Work closely with infrastructure and security teams to ensure timely closure of vulnerabilities...
Contract Spy
Jun 16, 2026
6 Months or more
AI Cloud Network Security Engineer at Brillio Europe Limited, London, 6 Months, £Contract Rate
Contract Spy London, UK
Job Summary We are seeking a highly skilled Senior Network Security Engineer to support a strategic Network Security Transformation Program for a leading Insurance customer. The successful candidate will be responsible for designing, implementing, and supporting enterprise network security solutions with a strong focus on Zscaler, Fortinet, and Lumio technologies. This is a hands-on engineering role requiring deep technical expertise in network security operations, security architecture, Firewall management, Zero Trust access, cloud-delivered security, and network visibility platforms. Experience with AI is essential. The ideal candidate will have experience working in large enterprise environments and be comfortable driving security improvements across both traditional and modern network infrastructures. Key Responsibilities Design, implement, and maintain enterprise network security solutions. Engineer and support Zscaler Internet Access (ZIA) and Zscaler...
Contract Spy
Jun 15, 2026
Duration not stated
Network Security Engineer – Vulnerability Management (Tufin & RSA). at Xoriant, London Canary Wharf, £Contract Rate
Contract Spy Canary Wharf, London, UK
Job Title: Network Security Engineer – Vulnerability Management (Tufin & RSA). Canary Wharf, UK Long Term Contract (Inside IR35) Hybrid (2 days a week)   Job Overview We are hiring a Network Security Engineer with strong expertise in Vulnerability Management, network security, and remediation practices . The ideal candidate should have hands-on experience with Tufin for firewall policy management and RSA Authentication Manager for secure access/authentication controls. The role involves identifying vulnerabilities, assessing risks, and driving effective remediation across enterprise environments. Key Responsibilities Identify, analyze, and manage network and system vulnerabilities across the environment Understand vulnerability impact and recommend appropriate fixes, remediation, and mitigation strategies Work closely with infrastructure and security teams to ensure timely closure of vulnerabilities...
Contract Spy
Jun 12, 2026
Duration not stated
Network Security Engineer – Vulnerability Management (Tufin & RSA) at Xoriant, London Canary Wharf, £Contract Rate
Contract Spy Canary Wharf, London, UK
Job Title: Network Security Engineer – Vulnerability Management (Tufin & RSA). Canary Wharf, UK Long Term Contract (Inside IR35) Hybrid (2 days a week)   Job Overview We are hiring a Network Security Engineer with strong expertise in Vulnerability Management, network security, and remediation practices . The ideal candidate should have hands-on experience with Tufin for firewall policy management and RSA Authentication Manager for secure access/authentication controls. The role involves identifying vulnerabilities, assessing risks, and driving effective remediation across enterprise environments. Key Responsibilities Identify, analyze, and manage network and system vulnerabilities across the environment Understand vulnerability impact and recommend appropriate fixes, remediation, and mitigation strategies Work closely with infrastructure and security teams to ensure timely closure of vulnerabilities...
Contract Spy
Jul 08, 2026
Duration not stated
Cloud Security Engineer – SC Eligible at ByDesign Secure, London, £650 per day
£650 per day
Contract Spy London, UK
This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in "billing by the hour" or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future of sovereign security, we want to...
Contract Spy
Jul 08, 2026
Duration not stated
Security Engineer (SIEM) – SC Eligible at ByDesign Secure, London, £625 per day
£625 per day
Contract Spy London, UK
This role is delivered within secure environments. Candidates must be eligible for UK Security Clearance (SC and DV) and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we design and deliver secure-by-default digital platforms for high‑assurance environments. We are currently building a new secure cloud platform based on Google Distributed Cloud (GDC) and are looking for a Security Engineer (SIEM) to lead the design and implementation of its security monitoring and observability capabilities. This role offers the opportunity to build a SIEM capability from the ground up, influence security architecture decisions, and directly support SOC operations protecting critical public‑sector services. About the Opportunity As a Security Engineer (SIEM) at ByDesign Secure, you will be responsible for building and enhancing our security monitoring and detection capabilities across complex environments. You will design and maintain SIEM use cases,...
Contract Spy
Jul 06, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £Competitive Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Jul 03, 2026
Duration not stated
ICP Enterprise Data Engineer at Homes England, London, January 2027, £Contract Rate
Contract Spy London, UK
On behalf of Homes England, we are looking for an ICP Enterprise Data Engineer (Inside IR35) for a January 2027 contract based Remotely with occasional travel to London . Homes England, the government's housing and regeneration agency, plays a central role in tackling the housing challenges the country now faces. We have the appetite, influence, expertise , and resource to drive positive market change, and our mission is to ensure more homes are built in areas of greatest need, improve affordability and create a sustainable housing market. Following the publication of the government's Levelling Up White Paper, Homes England has also been tasked with a core role in spearheading regeneration, partnering with places to reduce economic disparity, empower local leaders and create equal opportunities across the country to ensure communities reach their full potential. As a ICP Enterprise Data Engineer , your main responsibilities will be: Act as the day-to-day...
Contract Spy
Jul 01, 2026
Duration not stated
Cloud Security Engineer – SC Eligible – Government Projects at ByDesign Secure, London, £650 a day
£650 per day
Contract Spy London, UK
This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in "billing by the hour" or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future of sovereign security, we want to talk...
Contract Spy
Jul 01, 2026
Duration not stated
Security Engineer (SIEM) – SC Eligible – Government Projects at ByDesign Secure, London, £625 a day
£625 per day
Contract Spy London, UK
This role is delivered within secure environments. Candidates must be eligible for UK Security Clearance (SC and DV) and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we design and deliver secure-by-default digital platforms for high‑assurance environments. We are currently building a new secure cloud platform based on Google Distributed Cloud (GDC) and are looking for a Security Engineer (SIEM) to lead the design and implementation of its security monitoring and observability capabilities. This role offers the opportunity to build a SIEM capability from the ground up, influence security architecture decisions, and directly support SOC operations protecting critical public‑sector services. About the Opportunity As a Security Engineer (SIEM) at ByDesign Secure, you will be responsible for building and enhancing our security monitoring and detection capabilities across complex environments. You will design and maintain SIEM use cases,...
Contract Spy
Jun 29, 2026
Duration not stated
Azure Solution Architect (SC Cleared) at Scrumconnect Consulting, London, £Contract Rate
Contract Spy London, UK
Job Information Date Opened 05/06/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 400-500 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a leading UK digital and technology consultancy specialising in delivering impactful, user-centred services for the public sector. We work with central government departments, agencies, and local authorities to build digital products and services that improve outcomes for citizens. With a team of engineers, architects, delivery professionals, and designers, we bring deep expertise in digital transformation, cloud technologies, and agile delivery. We are committed to engineering excellence, innovation, and creating an inclusive environment where everyone can thrive. Role Overview We are seeking an experienced Azure...
Contract Spy
Jun 29, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £145,000 a year
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible! What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good judgment,...
Contract Spy
Jun 22, 2026
Duration not stated
Azure Solution Architect (SC Cleared) at Scrumconnect Consulting, London, £Contract Rate
Contract Spy London, UK
Job Information Date Opened 05/06/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 400-500 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a leading UK digital and technology consultancy specialising in delivering impactful, user-centred services for the public sector. We work with central government departments, agencies, and local authorities to build digital products and services that improve outcomes for citizens. With a team of engineers, architects, delivery professionals, and designers, we bring deep expertise in digital transformation, cloud technologies, and agile delivery. We are committed to engineering excellence, innovation, and creating an inclusive environment where everyone can thrive. Role Overview We are seeking an experienced Azure...
Contract Spy
Jun 22, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £Competitive contractor rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Jun 19, 2026
Duration not stated
Snowflake Platform Engineer - 6 months Temp Contract at Schroders, London, £Contract Rate
Contract Spy London, England, United Kingdom
Job Description Who we’re looking for We are looking for an experienced Snowflake Platform Engineer to join our Data Platform team. In this role you will be responsible for the day-to-day operation, security, and evolution of our Snowflake data platform. You will ensure the platform remains secure, performant, and available to data consumers across the business, while partnering closely with data engineering, analytics, and security teams. This is a hands-on technical role that requires deep Snowflake expertise combined with a strong appreciation for governance, access control, and cloud infrastructure. You will act as the subject-matter expert for all things Snowflake and be a key point of contact for platform-related queries, incidents, and strategic decisions. Enterprise Data Engineering sits within Global Technology. Our recent focus has been helping Schroders embed ESG data throughout our investment processes as part of the Global Sustainability initiative. While that...
Contract Spy
Jun 15, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £Competitive Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Jun 15, 2026
Duration not stated
Azure Solution Architect (SC Cleared) at Scrumconnect Consulting, London, £400-£500 per day (Outside IR35)
£400 - £500 per day
Contract Spy London, UK
400-500 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a leading UK digital and technology consultancy specialising in delivering impactful, user-centred services for the public sector. We work with central government departments, agencies, and local authorities to build digital products and services that improve outcomes for citizens. With a team of engineers, architects, delivery professionals, and designers, we bring deep expertise in digital transformation, cloud technologies, and agile delivery. We are committed to engineering excellence, innovation, and creating an inclusive environment where everyone can thrive. Role Overview We are seeking an experienced Azure Solution Architect to design, architect, and deliver scalable, secure, and high-performance cloud data solutions...
Contract Spy
Jul 02, 2026
Duration not stated
Firewall Engineer - Checkpont - Contract - Remote at WWT EMEA UK LIMITED, City of London, £Contract Rate
Contract Spy Remote (City of London, London, UK)
World Wide Technology (WWT) is a global technology integrator and supply chain solutions provider. Through our culture of innovation, we inspire, build, and deliver business results, from idea to outcome. World Wide Technology EMEA is looking for an experienced Firewall Security Engineer with strong skills in Checkpoint to support our clients network security infrastructure.  The ideal candidate has strong hands-on experience with Check Point firewalls and a solid understanding of enterprise network security. Key Responsibilities: Install, configure, and maintain Check Point firewalls (Gaia OS, Security Gateways, Management Servers) Manage security policies, NAT rules, VPNs (Site-to-Site and Remote Access), and access control lists Monitor firewall performance, logs, and alerts using SmartConsole / SmartEvent / SmartLog Troubleshoot connectivity, routing, and security-related incidents Perform firmware/software upgrades and patch management (Jumbo HFAs) Implement...
Contract Spy
Jul 06, 2026
Duration not stated
Red Hat Systems Engineer at Xoriant, London Canary Wharf/Remote, £Contract Rate
Contract Spy Hybrid (Canary Wharf, London, UK)
Senior Red Hat Systems Engineer / Linux Engineering Lead Canary Wharf, UK Hybrid (2 days a week) Long Term Contract (Inside IR35)   Seasoned Senior Red Hat Systems Engineer with over 10 years of deep expertise in Red Hat Enterprise Linux (RHEL) , specializing in large-scale infrastructure design, automation, performance optimization, and enterprise platform engineering across on-prem (VMware) and cloud (AWS) environments. Recognized for combining advanced Linux engineering skills with strong leadership , driving operational excellence, mentoring teams, and delivering resilient, secure, and highly automated infrastructure solutions aligned with business and regulatory requirements.   Professional Summary Expert in end-to-end Linux lifecycle management , including patching, OS upgrades, image creation, and large-scale deployments. Extensive experience with Red Hat Satellite , Ansible Automation Platform , and enterprise...
Contract Spy
Jul 06, 2026
6 Months or more
Desktop Support & Network Support Engineer (Onsite) at H-Tech Supports, Croydon, 12 Months, £Contract Rate
Contract Spy Croydon, UK
Location: Surrey (Near Croydon), UK Contract Duration: 12 Months Site Coverage: The successful candidate will primarily be based in Surrey (near Croydon) and will also provide onsite support across the following locations: Canterbury Road Worsfold House Cobham Lavender Melrose Whatley Travel between sites is required. About the Role: We are looking for an experienced Desktop Support & Network Support Engineer to join our IT support team on a 12-month contract. This is an excellent opportunity for a hands-on IT professional who enjoys providing exceptional end-user support while maintaining enterprise network infrastructure across multiple locations. You will be responsible for supporting desktop environments, troubleshooting network issues, maintaining Windows infrastructure, and ensuring a high level of service delivery for business users. Key Responsibilities: Desktop Support Provide onsite and remote...
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