Cyber Security Jobs

• Lisbon, Portugal
• Hybrid · 3 days in office
• Senior
• Permanent

Builds and operates production ML systems for document extraction powering identity verification, working with VLMs/LLMs and traditional ML at scale. Owns technical design from RFC to deployment, optimising GPU inference, training and evaluation pipelines, and labelling workflows. Mentors engineers and collaborates with Applied Science, Product and Data Science in a squad-based team.

AWS · Kubernetes · TensorFlow +4

• Cambridge
• Hybrid · 3 days in office
• Senior
• Permanent

Leads the design and delivery of complex features in a cryptographic security product, working hands-on across embedded software, platform components, client tools and APIs. Sets technical direction, mentors engineers and supports system-level architecture decisions on availability, latency and data models. Hybrid role in Cambridge, three days onsite.

C · Python

• London
• Senior
• Permanent

Builds and manages services that detect and automate mitigation of cybersecurity threats across Amazon's infrastructure, working with data scientists and software engineers. The role also supports UK customer security programs covering personnel security, accreditations, assurance and training, with visibility to government agencies and senior leadership.

AWS

• London
• Mid-level
• Permanent

Detect and mitigate invalid traffic and ad fraud across Amazon's advertising network by reverse-engineering malware, inspecting network traffic and hunting threats, including on the dark web. The role blends security engineering, botnet mitigation and intelligence sharing with teams across Amazon, requiring creativity and judgement in a highly ambiguous fraud landscape.

• 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

• 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

• Coventry
• Hybrid · 3 days in office
• £455 pm
• Senior
• Contract · Part time

Designs, implements and maintains enterprise network security across on-prem, cloud and hybrid environments, leading Zero Trust and segmentation initiatives. Hands-on with enterprise firewalls, Azure/AWS network security, VPNs and secure remote access, while collaborating with SOC teams on detection and response. Contract role with three days per week on-site in Coventry.

Palo Alto · Check Point · Cisco Firepower +7

• Reading
• On-site
• £30,000 – £35,000 pa
• Mid-level

Provide first and second line support remotely and onsite for a managed service provider, owning tickets in Autotask and troubleshooting Windows, Microsoft 365, printers and connectivity. Alongside helpdesk duties you assist with client installations, school projects and wireless networking work, developing skills in Intune, Ekahau surveys and 3CX telephony.

Autotask · IT Glue · Intune +7

• London
• On-site
• Junior
• Permanent

Day-to-day management of a bank's IT infrastructure, covering server room operations, VMware virtualisation, network and storage administration, backup, disaster recovery and IT security compliance, plus Tier 2 support. Works alongside the IT Infrastructure Manager, liaising with the parent bank and data centre, and requires fluent Mandarin and English.

VMware · vSphere · ESXi +7

• London
• Lead

Security lead for an AI engineering team's products and platform, owning security reviews, threat modelling and sign-off from design through production. Covers AI/LLM risks like prompt injection, CVE remediation, scanning tooling in CI/CD, pen testing and incident response, reporting directly to the CIO.

Azure · GCP · GitHub Actions +7

• Farnborough
• Hybrid
• Mid-level
• Permanent

Protects a critical defence IT application and infrastructure by running vulnerability scans, managing endpoint security, responding to incidents and hardening systems. Works with frameworks such as Government Functional Standard 007 and standards like CIS, STIG and NIST, leading security implementation and assurance on a major UK government programme.

CIS · STIG · NIST +2

• London
• On-site
• Lead · manages people
• Permanent

Lead product cybersecurity assurance across the HMND 01 humanoid robot platforms, defining security requirements, threat modelling and risk artefacts for safety-critical electromechanical systems. Own TARA, security management plans and remediation actions, drive compliance with IEC 62443, the EU Machinery Regulation and the Cyber Resilience Act, and build a PSIRT process while guiding a cross-functional security team.

CAN bus · Ethernet · KinetIQ +4

• London
• Hybrid
• £80,000 – £120,000 pa
• Senior

Hands-on engineering role embedded in the Incydr product team, working directly with customers on technical health checks, custom integrations and troubleshooting. You get full access to the codebase and deployment tooling to diagnose and ship fixes, using AI coding tools to build purpose-built scripts and integrations. Expect some travel to customer sites, with most engagement remote under a hybrid model.

Incydr · Mihra AI · SCIM

• London
• Remote
• Senior

Deliver expert-level technical support to top-tier cybersecurity customers, owning complex cases from initiation to resolution through multi-vendor troubleshooting, fault isolation and root cause analysis. Act as a designated customer advocate running weekly reviews, QBRs and upgrade planning, while working with Engineering and QA on bug reports and test plans.

Palo Alto Networks · Prisma Access · Cisco Firepower +7

• Sunbury-on-Thames
• Lead · manages people

Senior leadership role accountable for the strategy, engineering, delivery and operational performance of a global SAP platform estate spanning on-premises, private cloud, public cloud and SaaS. Combines hands-on SAP Basis and architecture work across S/4HANA, RISE, BTP and Joule with portfolio ownership, people leadership, financial stewardship, supplier management and risk governance, deputising for the Principal Engineer.

SAP · SAP S/4HANA · SAP HANA +7