Cyber Security Jobs

CrowdStrike · United Kingdom

Joins the Advanced Research Team to perform vulnerability research and exploit development, analysing vendor patches to find vulnerabilities and building proof-of-concept exploits. Also develops automated tooling for large-scale data collection and analysis, and investigates evidence of 0-day and n-day exploitation. Publishes research on the blog or at conferences and supports other intelligence teams with ad-hoc technical work.

CrowdStrike · Israel

Join the Advanced Research Team to perform vulnerability research across a wide range of targets, including analyzing vendor patches to identify vulnerabilities and develop proof-of-concept exploits. You will build automated solutions for collecting and processing data at scale, reverse engineer malicious payloads, and publish findings on the CrowdStrike blog or at conferences.

Darktrace · London

Joins R&D teams to build and enhance cybersecurity products, providing technical direction across rapid prototyping and structured platform development. Involves advancing malware-defence methodology, mentoring engineers in Python, JavaScript, Rust and C++, and working with Docker, cloud environments and CI/CD pipelines. Hybrid role with two days a week in the Cambridge office.

Darktrace · London

Hands-on technical leadership role maintaining and evolving the Workday integration ecosystem across HR and Finance, reporting to the Digital Transformation Lead. You will design, build and support integrations using Workday Studio, EIB, web services and APIs, govern the Workday security model, and develop reporting and analytics. The role combines technical delivery with architecture, security, compliance and service management responsibilities.

QinetiQ · Portsmouth · £50,850 – £56,500 pa

Advises customers on cyber security vulnerability, risk, audit and compliance, applying NIST and ISO27001 frameworks to risk assessments and security assurance. Supports accreditation, governance and mitigation strategies across government, defence and critical national infrastructure, engaging stakeholders and presenting findings. Based on-site at least three days a week with customer travel required.

Randstad Technologies Recruitment · Birmingham · £300 – £400 pd

Lead a six-month AI and digital platform security initiative, defining controls and guardrails for GenAI and machine learning across global operations. Architect defences spanning AWS, Azure, hybrid and on-prem environments, aligning with NIST and ISO 27001 while mentoring a senior team of security architects and advising C-suite stakeholders.

Palo Alto Networks · London

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.

Commercial Ltd · Kings Hill · £54,500 – £55,000 pa

Monitor, triage and investigate security alerts, incidents and requests, managing records through to closure and coordinating recovery. Use tools such as Tenable and Darktrace across cloud and wider IT infrastructure, supporting vulnerability management, threat intelligence and malware analysis, with on-call backup for emergency response.

Amazon · London

Hands-on security engineering role securing production AI systems deployed inside enterprise customer environments. You conduct design and code reviews, threat modeling and penetration testing for agentic workflows and RAG pipelines, and build security automation such as scanning tools, CI/CD gates and guardrail testing scripts. Work alongside FDE delivery pods, with up to 25% travel.

Reed · Newport · £62,000 – £71,000 pa

Owns end-to-end delivery and performance of critical IT services delivered through a strategic partner and supplier network in a SIAM environment. Acts as service integrator, managing supplier SLAs, KPIs and contracts, leading service reviews, driving continual improvement and ensuring compliance with NIS and CAF standards. Combines technical oversight of Azure, SaaS, SAP and ServiceNow with stakeholder-facing reporting via Power BI.

Palo Alto Networks · London

Lead and deliver reactive incident response engagements for clients, managing scoping, forensic investigations and containment of security incidents. Perform host-based analysis across Windows, Linux and macOS, examine firewall, web and database logs, and use tools such as EnCase, FTK, X-Ways, SIFT and Splunk to determine breach scope. Also mentors junior team members and provides remediation guidance to customers.

Risk Ledger · London · £90,000 – £120,000 pa

Full-stack product engineering role in a cross-functional squad, owning mid-to-large initiatives end to end and shaping product strategy with designers and PMs. Stack centres on Go, AWS and Vue.js, with a strong emphasis on system design, testing, automation and mentoring other engineers.

Mimecast · London · £124,000 – £186,000 pa

Owns architectural direction for Mimecast's Email & Collaboration Security product line, spanning email threat detection, DMARC, data platforms and response capabilities. Works across product, engineering and the Architecture Leadership Team to define integration contracts, ADRs and NFR targets, with cost-per-outcome reasoning and daily AI tooling use.

Barclays · Knutsford

Hands-on engineering role safeguarding encryption keys and cryptographic services across 300+ enterprise platforms, working extensively with Thales and Entrust HSMs. Involves key management, certificate management, production support, and on-call rotation, with occasional off-site data centre work.

Seetec · Hockley · £49,000 – £52,500 pa

Hands-on security role operating and improving controls across internal and customer environments, using Microsoft Sentinel, the Defender suite, Huntress and Tenable. Day to day covers security monitoring, incident response, vulnerability management, compliance and technical security projects, working with the Head of Cyber Security and wider technical teams.