> Markdown version of [/jobs/ext/2700718-waf-security-engineer](https://www.wearedevelopers.com/jobs/ext/2700718-waf-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # WAF Security Engineer - **Company:** Lloyds Banking Group - **Location:** Leeds, UK (Remote available) - **Salary:** £48,987.0 - £55,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Application Firewall, Application Layers, Botnet, Cloud Computing, Cloud Database, Data Centers, DDoS Mitigation, Software Design Patterns, DevOps, Domain Name System (DNS), Python (Programming Language), Web Application Security, Policy as Code, Transport Layer Security, Cloud Platform System, Software Security, Technical Debt, Infrastructure Automation Frameworks, Terraform - **Published:** September 4, 2026 - **Apply:** https://www.jobs.service.gov.uk/jobs/6a999160cb9fc373f7c47a37/apply ## About the Role * A strong engineering mindset, with hands-on experience of edge, on-premises or cloud-native WAF technologies. * Solid understanding of networking and web fundamentals, including HTTP/S, DNS, TLS and platform security concepts. * Experience in any of the following: Application Security, API Security, Bot Protection, and Layer 7 DDoS mitigation. * Strong automation and scripting skills (Python preferred), with practical experience using Infrastructure-as-Code tools (Terraform preferred) and modern CI/CD pipelines. * Ability to contribute to complex technical investigations, diagnose issues under pressure and develop robust solutions. * Confidence to influence engineering decisions and contribute to the team's technical direction. And any experience of these would be great… * Professional-level cloud certifications and/or recognised security or network engineering accreditations. * Demonstrable experience with Cloud-based data warehouse technologies. * Interest in or experience with developing AI solutions to augment security solutions. We know that great talent comes from many backgrounds. Whilst this job advert may reference specific years of experience, we recognise that skills are developed in many ways, so if you have relevant, transferable experience, we encourage you to apply. ## Description You'll be a key engineer responsible for designing, implementing, evolving and maintaining our Web Application Firewall (WAF) platforms, protecting critical customer-facing services at scale. You'll use modern engineering practices, including automation and secure-by-default design, to improve the resilience, performance and security of our edge, data centre and cloud environments. The role offers real scope to influence technical direction, raise engineering standards, and develop our WAF and wider Layer 7 security services. Day to day, you'll work with a high degree of autonomy and contribute technical influence across the team. Your responsibilities will include: * Design, implement and continuously optimise WAF security controls, developing and tuning rules and policies to improve protection against emerging threats while minimising false positives and maintaining a seamless customer experience. * Engineer new WAF capabilities using Infrastructure as Code, CI/CD pipelines and policy-as-code approaches to deliver secure, repeatable and scalable outcomes. * Playing a key role in platform modernisation and service improvements, including refactoring, automation and the reduction of technical debt * Driving observability and operational insight by improving monitoring, alerting and telemetry to strengthen platform reliability and incident response * Support the diagnosis and resolution of major incidents, partnering closely with Security Engineering, Network and Cloud teams. * Embed secure-by-design patterns and guardrails, ensuring controls are codified, consistent and easy for platform consumers to adopt. * Produce high-quality engineering documentation, including standards, patterns, platform guidance and runbooks, to enable self-service and repeatable delivery. * Participate in the on-call rota, helping to maintain the operational resilience of critical services, with additional compensation provided. Why Join us? If you think all banks are the same, you're wrong. We're a pioneering, fast-changing business that's shaping finance as a force for good. If you're after a role where you can have an impact and do the best work of your career, you've just found it In this role, you'll have the chance to: * Shape the future of WAF and Web Application Security capabilities across Lloyds Banking Group. * Contribute to engineering standards, patterns and guardrails used across multiple teams and platforms. * Work alongside highly skilled engineers in a culture that values modern engineering, automation and continuous improvement. * Continue to develop your knowledge in Layer 7 controls and modern engineering practices., Our ambition is to be the leading UK business for diversity, equity and inclusion supporting our customers, colleagues and communities, and we're committed to creating an environment in which everyone can thrive, learn and develop. ## Related Videos - [WWC24 - Chris Wysopal, Helmut Reisinger and Johannes Steger - Fighting Digital Threats in the Age of AI](https://www.wearedevelopers.com/videos/926-wwc24-chris-wysopal-helmut-reisinger-and-johannes-steger-fighting-digital-threats-in-the-age-of-ai) - [Infrastructure as Code: The Developer's Secret Weapon](https://www.wearedevelopers.com/videos/1221-infrastructure-as-code-the-developer-s-secret-weapon) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) - [Implementing Feature Environments with AWS and Terraform](https://www.wearedevelopers.com/videos/531-implementing-feature-environments-with-aws-and-terraform) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)