Senior Security Engineer

Please note: visa sponsorship is not available for this role. As our next Senior Security Engineer, you’ll play a key role in helping us build the UK’s go-to home improvement marketplace. By shaping and strengthening our security posture, you’ll ensure our platform remains safe, resilient, and trusted as we scale. Your work will directly support millions of homeowners in finding the right tradesperson for the job fast, fair, and without the faff by protecting the systems and data that power those connections. Forget long lists, here’s what you’ll actually spend your time on : Security Engineering & Architecture: Lead the design and implementation of highly available, scalable security controls and services across a multi-cloud environment. Security Operations & Incident Response: Mature and lead detection, analysis, and containment capabilities, driving post-incident remediation and preventative measures. AI-Driven Security Transformation: Spearhead the evaluation, prototyping, and deployment of agentic AI patterns to automate security tasks, enhance threat detection, and transform engineering throughput. Build and refine AI agents to augment the security team’s capabilities. Tooling & Automation Mastery: Take ownership of the security tooling lifecycle, from evaluation and deployment to configuration and continuous maturity across infrastructure. Secure Onboarding & Assurance: Perform technical deep-dive security reviews for new applications, development stacks, and infrastructure changes, enforcing the principle of least privilege. It’s not about ticking every box. It’s about turning up curious, ready to crack on. You’ll do well here if you bring: A seasoned practitioner: With demonstrable, hands-on experience across Security Operations, Incident Response, and Security Engineering. An AI-forward builder: With a strong technical perspective on how agentic patterns, machine learning, and human-in-the-loop design can transform security engineering practices, alongside a genuine passion for building AI-powered security solutions. A systems thinker and standardiser: Applying a holistic, system-level approach to security challenges, standardising processes and technology where it adds maximum value while enabling autonomy for development teams. A technical doer and transformer: Comfortable working directly with code and infrastructure, eager to learn new technologies, and committed to challenging the status quo to drive meaningful change. Resilient and adaptable: Thriving in high-intensity, demanding environments where expectations are high and pace is fast. Cloud-agnostic: Bringing extensive experience securing complex, distributed multi-cloud environments (e.g., AWS, GCP, Azure). Technically deep in networking and infrastructure: With strong exposure to modern networking, platform engineering, and infrastructure-as-code practices. We believe great work deserves great rewards. Here’s just a taste: Competitive salary + annual bonus Employee Share Program Health, well-being and learning support Gym membership, Smart Tech Scheme and Cycle Scheme Birthday/Special day leave Buy & sell holiday scheme 1 week’s paid charity leave and much more! How we’ll get to know each other: Screening call with one of our Talent Acquisition Partners 1st stage interview with the Hiring Manager - Head of Information Security 2nd Stage interview with Hiring Manager & Director of Engineering If this sounds like the place where you can do your best work, we’d love to hear from you, even if you don’t tick every box Want to join our Talent Community and be one of the first to know about our vacancies? Register your interest on our Registration Form About us We’re Checkatrade – the UK’s leading platform for finding a tradesperson. With more than 50,000 trades listed and over 6 million reviews, we help homeowners get jobs done right and help tradespeople grow their business. We’re growing fast, with big plans to become the go-to brand for home improvements. If you care about great work, take pride in the details, and want to make an impact, you’ll fit right in.