> Markdown version of [/jobs/ext/4712222-infrastructure-security-engineer-london](https://www.wearedevelopers.com/jobs/ext/4712222-infrastructure-security-engineer-london). 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). --- # Infrastructure Security Engineer London - **Company:** Blockchain Ventures - **Location:** Epsom, United Kingdom (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Android Software Development, Bash Shell, Cloud Engineering, Continuous Integration, DDoS Mitigation, Github, Python (Programming Language), Open Source Technology, PCI Data Security Standards, Security Information and Event Management, Circleci, Scripting, Cloud Platform System, Delivery Pipeline, Concourse, Infrastructure Automation Frameworks, Hashicorp, Cloudflare, CIS Benchmarks, Terraform, Splunk, Devsecops, Pagerduty, Golang - **Published:** November 14, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/infrastructure-security-engineer-london/56420986 ## About the Role 4+ years of experience in security engineering, platform security, or DevSecOps roles. Hands-on experience implementing security controls and automation within cloud environments, GCP or AWS are preferred. Proficiency in modern scripting, automation and infrastructure as code e.g. Python, Bash, Go, Terraform, or similar. Ability to collaborate closely with engineering teams and translate security requirements into practical, scalable solutions. Strong analytical and problem-solving skills, with a bias toward automation over manual workflows. Curiosity, ownership, and a drive to continuously improve the security posture of complex systems. Familiarity with some of the following: Cloudflare (DDoS protection, WAF), OSS SIEM tools (Splunk, Elastic, etc), Incident management platforms (e.g. Incident.io, PagerDuty) Familiarity with at least one of the following CI/CD systems (Github Actions, Concourse, CircleCI) Familiarity with maintaining HIDS systems (Wazuh preferred). Nice to have Knowledge of security standards and governance frameworks (e.g., CIS Benchmarks, NIST, SOC2, ISO 27001, PCI DSS) and how to operationalize them. Hands-on experience with building and maintaining a SIEM comprised of open-source and hosted components. Experience securing consumer-facing web and iOS / Android applications. Experience designing policies and administering Vault & other Hashicorp products. Experience managing security vendors. ## Description We are looking for a Senior Infrastructure Security Engineer with a proven track record in keeping systems safe. You will play a critical role in building and providing tooling that monitors our entire stack, from supporting our consumer-facing products and our institutional offerings to ensuring that we are capable of rapidly responding to cyber attacks on our colleagues and endpoints. Throughout our company, Security is a well-established mindset that leverages novel engineering approaches - as a Senior Infrastructure Security Engineer, you will lead by example and drive technical discussions with engineering teams and influence the overall architecture of our platform. Our day-to-day work is interesting and dynamic, driven by a focus on proactive threat actor identification and in-depth investigation of security issues. These practices are key to ensuring strong product security and fostering continuous, iterative improvement. What you will do Design, build, and implement security controls, automation, and processes across product, platform, and infrastructure environments. Identify operational and technical security gaps, propose solutions, and drive engineering initiatives to close them. Collaborate with the SRE and engineering teams to integrate security into CI/CD pipelines, deployment workflows, and cloud-native architectures. Build automated tooling and services to enforce secure configurations, detect misconfigurations, and support continuous compliance. Assist in threat modeling, design reviews, and architectural assessments for new and existing systems. Contribute to internal security documentation, best practices, and developer guidance. Participate in security incident response when engineering expertise or automation support is needed.