Cyber Security Jobs in York

Appvia · London · £75,000 – £90,000 pa

Design, build and operate secure AWS platforms using Terraform, Kubernetes/EKS and CI/CD for public and private sector clients. You will own technical delivery in your area, create reusable modules and deployment patterns, and mentor less experienced engineers within multi-disciplinary consulting teams.

RiverSafe · London

Client-facing consulting role leading end-to-end security engagements across security architecture, cloud security, DevSecOps, application security and security operations. You'll run workshops, design controls in AWS/Azure/GCP, produce risk-based deliverables and help identify follow-on work, contributing to proposals and account growth.

eFinancialCareers · Leeds · £62,000 pa

Hands-on security engineering role protecting cloud, hybrid and on-premises environments for a global technology and professional services organisation. Involves designing and managing security tooling, building automation for SIEM log ingestion, supporting firewall and network security, running CIS Benchmark assessments, and contributing to vulnerability management and SOC incident response.

Axon Moore · Leeds · £65,000 – £70,000 pa

Lead the full lifecycle of OT projects across multiple West Yorkshire manufacturing sites, from concept and specification through procurement, installation and commissioning. Work on PLC, HMI and SCADA systems, industrial networks and protocols such as Profinet, Profibus, Ethernet/IP and Modbus, while ensuring cyber security and compliance. Reports to the Head of IT and works closely with engineering, production and maintenance teams.

Cloudflare · London

Lead the Threat Application Services team within Cloudforce One, owning the Threat Events platform, external Threat Intel APIs, and backend systems that feed IOCs into WAF and Gateway for automated mitigation. Set architectural direction and operational excellence for distributed, high-latency-sensitive services, while hiring and mentoring engineers building agentic threat intelligence tools.

Cloudflare · London

Own the full software development lifecycle for distributed systems supporting threat disruption and legal response, building data pipelines that collect and expose threat intelligence for analysts and customers. Work primarily in Golang and TypeScript with Rust, Kafka, Redis, Kubernetes, Terraform and Postgres, collaborating with Threat Intelligence, Trust & Safety, Legal and Product teams, plus on-call rotations and mentoring.

OnlyFE · Leeds · £32,006 – £33,850 pa

Maintains, secures and evolves on-premises and cloud infrastructure for a further education college, covering network maintenance, backups, DR testing and Microsoft 365 support. Combines frontline incident resolution for staff and students with project work, server deployment and documentation, reporting to the Digital Support Manager within a growing IT team.

Avanti · Malton · £40,000 – £50,000 pa

Hands-on 3rd line infrastructure role in a large multi-site manufacturing business, with roughly 70% of time on projects such as data centre modernisation, SD-WAN and Cisco Meraki networking, server and virtualisation upgrades, and new site deployments. You'll also troubleshoot complex issues and maintain reliability across Windows Server, Azure, Microsoft 365, VMware, Hyper-V and backup tooling. Predominantly on-site in Malton with an infrequent on-call rota.

Cloudflare · London · US$215,000 – US$225,000 pa

Lead research, design and evaluation of detection models identifying automated, fraudulent and malicious activity across Internet-scale traffic. Own the detection measurement framework for noisy or delayed ground truth, mentor others, and drive cross-functional detection strategy with ML, data and product teams.