Cyber Security Jobs

• Arlington, United States
• Remote
• £140,000 – £215,000 pa
• Senior · manages people

Lead a team building the foundational platform behind CrowdStrike's massive-scale cloud infrastructure, architecting core services and driving cloud cost optimization across AWS and GCP. The role blends people management with hands-on technical direction, setting deployment standards and SRE practices in a multi-cloud, Linux-based environment.

Chef · Puppet · Salt +7

• Reading
• Remote
• US$140,000 – US$215,000 pa
• Lead · manages people

Lead a growing engineering team building self-service infrastructure-as-code primitives, architecting large-scale core services and driving cloud cost optimisation across multi-cloud environments. The role combines people management with hands-on technical direction, including design reviews, on-call management and SRE practices.

Chef · Puppet · Salt +7

• London
• On-site
• Senior

Builds customer-facing web experiences in React alongside product designers and managers, prototyping and iterating for cross-browser and accessibility standards. Improves continuous delivery through test automation and GitLab CI/CD pipelines, and mentors other engineers on refactors and technical debt within an agile team.

React · GitLab

• Cambridge
• Hybrid
• Senior
• Permanent

Designs, implements and maintains AWS cloud infrastructure supporting microservices-based applications, with heavy focus on EKS, Kubernetes and Terraform/OpenTofu IaC. Also covers service mesh (ISTIO), CI/CD with Jenkins, Splunk and Datadog monitoring, and day-2 operations such as upgrades, backup/restore and cost optimisation.

AWS · EKS · Kubernetes +7

• London
• Hybrid
• Senior

Builds and maintains a high-performance, fault-tolerant production backbone network across multiple cloud providers, spanning IP and optical/DWDM technologies connecting data centers and edge sites. Owns improvement initiatives end to end, drives capacity planning and network automation with Python, Ansible and CI/CD pipelines, and participates in a 24x7 on-call rotation.

AWS · GCP · OCI +7

• Germany
• Remote
• Senior

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, operating and extending honeypots, performing vulnerability research, and reproducing emerging vulnerabilities. Involves reverse engineering, Linux/Windows internals, Python tooling, and GenAI/LLM workflows, with published research on the CrowdStrike blog or at conferences.

CrowdStrike · Python · Android +4

• United Kingdom
• Remote
• Senior

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, running honeypots and Internet-wide scans, and performing vulnerability research. The position also involves reverse engineering, publishing research on the blog or at conferences, and applying GenAI/LLM workflows to security research.

CrowdStrike · Android · iOS +3

• United Kingdom
• Remote
• Senior

Senior technical consultant conducting front-page incident response investigations for Fortune 100 clients, performing host and network forensics across Windows, Mac and Linux, hunting threat actors in large data sets, and producing written and verbal findings for customers, regulators and legal counsel.

CrowdStrike · Bro/Zeek · Suricata +6

• Spain
• Remote
• Senior

Senior technical consultant conducting front-page incident response investigations for Fortune 100 organisations, hunting adversaries across large data sets and performing host and network forensics on Windows, Mac and Linux. Works under project leadership and outside counsel, producing written and verbal findings for executives, regulators and legal counsel.

CrowdStrike · Bro/Zeek · Suricata +6

• Ireland
• Remote
• Senior

Senior consultants lead front-page incident response investigations for Fortune 100 organisations, hunting adversaries across large data sets and conducting host and network forensics on Windows, Mac and Linux. The role involves intrusion analysis under project leadership and outside counsel, plus written and verbal reporting to executives, regulators and legal teams.

CrowdStrike · Bro/Zeek · Suricata +6

• United Kingdom
• Remote
• Mid-level

Lead incident response engagements, hunting adversaries across large data sets and conducting intrusion investigations under outside counsel. Perform host, network and cloud forensics across Windows, Mac and Linux, plus basic malware analysis, and deliver findings to executives, regulators and legal teams.

CrowdStrike · Zeek · Suricata +6

• United Kingdom
• Remote
• Lead

Serve as technical lead on front-page incident response engagements for Fortune 100 organisations, conducting intrusion investigations under outside counsel and performing host and network forensics across Windows, Mac and Linux. The role also involves hunting threat actors in large datasets, cloud IR in AWS, Azure or GCP, and communicating findings to executives, regulators and legal teams.

CrowdStrike · AWS · Azure +6

• Germany
• Remote
• Senior

Senior consultants join the technical team on front-page incident response engagements for Fortune 100 organisations, conducting intrusion investigations under project leadership and outside counsel. The role spans host and network forensics across Windows, Mac and Linux, threat hunting across large data sets, and producing written and verbal findings for customers, regulators and legal counsel.

CrowdStrike · Bro/Zeek · Suricata +6

• United Kingdom
• Remote
• Mid-level

Lead and support cloud incident response engagements and security assessments for clients, analysing cloud and hybrid architectures and providing remediation guidance. The role also involves mentoring junior consultants, developing internal and open-source tooling, and researching emerging cloud security techniques.

AWS · Azure · GCP +4

• United States
• Remote
• US$120,000 – US$185,000 pa
• Mid-level

Builds and operates core systems for the Falcon Complete team, developing features that help security analysts triage and remediate threats at scale. Work spans Golang, microservices, Kafka, Kubernetes and cloud observability, with on-call rotation and heavy asynchronous remote collaboration.

AWS · Azure · GCP +7