23 of 23 Distributed Denial-of-Service Jobs in London

services, including configuring and securing Virtual Private Clouds (VPCs), Subnets, Security Groups, and Network ACLs. Expertise in implementing and managing Content Delivery Networks (CDNs), Web Application Firewalls (WAF), and DDoS protection such as AWS shield. Ability to design and enforce security policies that align with best practices for cloud networking and ensure secure application delivery. Infrastructure & Compliance as Code: Comprehensive More ❯

What you will do Security Product Engineering (Customer-Facing Focus) Support deployment and integration of customer security products such as managed firewalls, SD-WAN, SASE platforms, and DDoS mitigation solutions. Perform configuration, troubleshooting, and tuning of security services in customer environments. Assist in onboarding, proof-of-concept testing, and support transitions to operations for More ❯

in vulnerability management, patch management validation, and compliance assurance. Strong familiarity with key security domains such as Email Security, Identity and Access Management, Network and Application Security, Cloud Security, DDoS & Bot protection, and Endpoint Security. Without being an expert in all technologies, already has knowledge and experience of configuration and trace analysis on the following systems: AWS, Azure More ❯

with hands-on technical expertise in building AWS cloud security capabilities in code and deploying infrastructure in code - Implementation experience with enterprise security solutions such as WAF, IPS, Anti-DDOS, and SIEM - Experience in supporting internal and external customers. You understand what it means to draw out critical customer needs and focus your knowledge and creativity to deliver practical outcomes More ❯

Enterprise Application and App registration certificate. Closely working With Security Architect and Team to adhere zero-trust architecture by securing server policy, group policy, defender etc. Tenant security – DDOS, Azure Firewall policy creation and maintain of Application, Network rule along with IDPS to ensure all the inbound/outbound traffic managed via AZFW. Password management, disk encryption More ❯

Enterprise Application and App registration certificate. Closely working With Security Architect and Team to adhere zero-trust architecture by securing server policy, group policy, defender etc. Tenant security – DDOS, Azure Firewall policy creation and maintain of Application, Network rule along with IDPS to ensure all the inbound/outbound traffic managed via AZFW. Password management, disk encryption More ❯

of cybersecurity training, you will be a hands-on leader in securing the business against evolving threats. Key Responsibilities Manage and optimise enterprise-grade security tools: WAF, DDoS, email and web security gateways, SIEM, SOAR, EDR, MFA, SSO, IDS/IPS, PAM and more. Perform vulnerability assessments and penetration test remediation. Deliver Cyber Security Awareness Training across the More ❯

junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR, and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS More ❯

Technologies Network: Cisco Nexus Switches Cisco ACI Network Cisco ISR Router Cisco Wireless Access Points Cisco Wireless LAN Controller Cisco DNA Centre Network Security : Forescout F5 load balancer Arbor DDOS Perimeter Security : Palo Alto Firewall Checkpoint Firewall Technical Certifications (Good to have) ITIL v3 or v4 Foundation Palo Alo or Check Point Firewall Certification PCSA, CCSA CCNP certification CCNA wireless More ❯

Technologies Network: Cisco Nexus Switches Cisco ACI Network Cisco ISR Router Cisco Wireless Access Points Cisco Wireless LAN Controller Cisco DNA Centre Network Security : Forescout F5 load balancer Arbor DDOS Perimeter Security : Palo Alto Firewall Checkpoint Firewall Technical Certifications (Good to have) ITIL v3 or v4 Foundation Palo Alo or Check Point Firewall Certification PCSA, CCSA CCNP certification CCNA wireless More ❯

Access Management Robust CSOC services that include SIEM and Security Orchestration Cloud security and compliance SASE/CASB EDR/XDR KMS/HSM Solutions NFV Security Technologies, WAFs DDOS Containerisation and Cloud Native application security Security consultation Ransomware/Anti-Span/Malware prevention technologies Experience in Private & Public Cloud architectures for Security Knowledge of Network Architectures More ❯

paced environments Broad knowledge of IT and security frameworks, regulations, and best practices (e.g., ISO 27001, DPA, GDPR) Familiarity with security tools such as vulnerability scanners, SIEM, DDoS protection, remote access, authentication/authorisation technologies, and data loss prevention Understanding of OWASP top vulnerabilities and methodologies Technical knowledge of cloud, networking, virtualisation, mobile technologies More ❯

junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR, and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS More ❯

infrastructures - Experience communicating across technical and non-technical audiences, including executive level stakeholders or clients - 8+ years' experience in infrastructure architecture, security architecture and networking - Deep expertise with WAF, DDoS protection, and edge security services - Experience architecting/operating solutions built on cloud service providers - Strong understanding of network security concepts and threat mitigation strategies PREFERRED More ❯

analytical and problem solving skills Very strong written and verbal communications skills. In-depth knowledge of: Advanced Persistent Threats, Third Party Risks/Threats, Cybercrime, Hacktivism, Distributed Denial of Service attacks, Fraud, Malware, Mobile Threats We offer: By joining Citi London, you will not only be part of More ❯

Equivalent market experience will be considered. Good knowledge of key global IP Networks, IP Transit, Service Providers, Ethernet service offerings, CDN, networking and DDoS services Have a good understanding of the respective strengths and weaknesses of such Providers globally. Work Experience Required: Good knowledge of all Microsoft Office More ❯

Join a focused 3-person IT Security team, reporting to the IT Security Officer, to implement and maintain robust security across their infrastructure. Key responsibilities include managing WAF/DDoS, security gateways, SIEM/SOAR/EDR, firewalls, MFA/SSO, MDM/MAM, vulnerability scans, and incident response. Key Responsibilities: Manage WAF/DDoS, web/email security gateways … CrowdStrike EDR, Mimecast, Duo, Okta, Rapid7 IVM/IDR, Palo Alto Firewalls, InTune, and Entra ID/Azure AD/Group Policy. Experience: Familiarity with Imperva WAF/DDoS, Menlo, Cisco security, KnowBe4, Digicert, patching tools, web application scanners, and Kali Linux, AI, Machine Learning Candidate Profile: Relevant security certifications (CISM, MS Security, OSCP preferred). Financial services/ More ❯

Join a focused 3-person IT Security team, reporting to the IT Security Officer, to implement and maintain robust security across their infrastructure. Key responsibilities include managing WAF/DDoS, security gateways, SIEM/SOAR/EDR, firewalls, MFA/SSO, MDM/MAM, vulnerability scans, and incident response. Key Responsibilities: Manage WAF/DDoS, web/email security gateways … CrowdStrike EDR, Mimecast, Duo, Okta, Rapid7 IVM/IDR, Palo Alto Firewalls, InTune, and Entra ID/Azure AD/Group Policy. Experience: Familiarity with Imperva WAF/DDoS, Menlo, Cisco security, KnowBe4, Digicert, patching tools, web application scanners, and Kali Linux, AI, Machine Learning Candidate Profile: Relevant security certifications (CISM, MS Security, OSCP preferred). Financial services/ More ❯

Senior Software Engineer on our Content Delivery & Security team, you'll work on core CDN and DNS systems while helping build out our greenfield Shield product, focused on WAF, DDoS mitigation, and bot protection at a global scale. You'll design and optimize low-level systems that accelerate clean traffic and stop attacks in real time, fine-tuning for latency … content delivery and edge security Write and maintain code that processes millions of requests per second with low latency and high availability Implement and evolve our WAF, DDoS mitigation, and bot detection capabilities in real time at the edge Work closely with network and security engineers to refine our TLS/SSL, HTTPS, TCP, and reverse proxy configurations … HTTPS, TCP, DNS, TLS/SSL protocols, and reverse proxy technologies like Nginx Prior experience in a cybersecurity-related field and working knowledge of WAF/DDoS techniques Track record of delivering reliable, scalable, and secure systems under real-world traffic conditions Willingness to learn, adapt, and contribute to a fast-evolving technical stack What More ❯

DoH/T/Q), and nameserver implementations such as those by ISC, NLNetLabs, and OpenXchange. DNS Security Knowledge: Deep understanding of DNS security practices, including DNSSEC, DDoS mitigation, and related technologies Programming experience with more than one programming language, typically C, C++, C#, Scala, Java, Python Networking Fundamentals: Strong knowledge of networking principles, including IP … they relate to DNS Knowledge of using BGP to deliver DNS services via IPAnycast Comfortable working with highly secure environments Hands-on experience with large scale distributed systems, web applications and cloud platforms What We Offer Early Finish Friday - Working week of 34 hours with full-time pay. (Finish at midday on Friday More ❯

We are looking for an experienced Akamai WAF Engineer who has expertise in web application security, content distribution and in Threat and Vulnerability Management, DDoS protections, and delivering change projects into the organisation. As a part of the Cyber Security Team and work with other cyber professionals across Digital Cyber Security and the wider organisation, contributing to the … multiple aspects. Key Responsibilities: Deliver security software and configurations using Akamai, GCP and Azure cloud native products. Deliver and maintain security solutions for our Enterprise and Digital Channels. Manage DDoS, Vulnerability management and threat intelligence, certification, ensuring layer 6 & 7 defences are one step ahead of cyber criminals. Involved in all the incidents and threats to Lloyds cyber More ❯

About Vercel: Vercel gives developers the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel helps customers like Ramp, Supreme, PayPal, and Under Armour build More ❯

About Vercel: Vercel gives developers the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel helps customers like Ramp, Supreme, PayPal, and Under Armour build More ❯