76 to 99 of 99 Offensive Security Jobs in the UK

defining, developing, and leading the strategic direction for safeguarding the organisation’s infrastructure and applications. This is achieved by proactively identifying, assessing, and remediating security vulnerabilities. The role sits within the Digital Engineering Services & Solutions (DES) department of the Technology Division.The role is part of the Digital Engineering Services … ensure compliance with internal controls and regulatory standards. It plays a critical role in governance, audit readiness, and the continuous improvement of MUFG’s security posture, while also serving as the central coordination point for all vulnerability-related activities across DES.The successful candidate must demonstrate proven experience in leading ...

Threat Hunter to join our global efforts in identifying and mitigating sophisticated threats targeting our clients and digital assets.As part of our Global Cyber Security group, you’ll partner with a team of security experts, researchers, and innovators to disrupt digital crime using next-generation detection capabilities … frontier models to investigate and mitigate the latest threats (e.g., phishing, smishing, malware) and operationalise hunting scenarios for real-time detection and prevention.Web Application Security Hunting: Leverage web application security expertise to analyse live traffic for vulnerabilities and attack vectors.Methodology Enhancement: Collaborate with global teams to refine Digital ...

bookings and automated marketing through mobile apps and advanced integrations with major tech brands including Instagram, Facebook and Google.About the roleReports to: VP of Security, IT and ComplianceWe're looking for someone to own security end-to-end at Fresha. You'll shape the security strategy alongside … build and run the controls that protect the business, and be the person everyone — engineers, execs, auditors, customers — looks to regarding security questions.You'll work alongside the Head of Compliance (who sits under the same VP) as a peer. They own the frameworks, the audits, and the evidence. ...

Service platform manages customers’ attack surfaces by discovering new assets, pentesting for critical vulnerabilities and gaining visibility into the root causes of security risks. We are committed to making the world more secure by harnessing a talented, vetted community of security researchers to deliver continuous penetration testing … please visit www.synack.com. We are looking for a Senior Software Engineer (AI), where you'll design and ship AI agents that plan, reason, drive security tooling and surface exploitable vulnerabilities, running autonomously inside sandboxed environments. It's a hands‐on senior role spanning applied AI and cybersecurity. ...

Matchtech is seeking a senior AI Staff Security Engineer to act as the linchpin of our security posture, engineering automated workflows and reducing manual overhead across the enterprise. You will manage systemic risk of Shadow AI agentic frameworks and enforce least privilege through programmatic control of software across … organization. You will design and operate AI Detection and Response (AIDR) solutions, automate critical security workflows, and lead offensive security operations #J-18808-Ljbffr ...

hackajob is collaborating with Next Ltd to connect them with exceptional professionals for this role. The Role Working in the Information Security team you will focus on Vulnerability and Threat Management across the Next technology estate, with a particular focus on our Warehouse environment and the technology utilised within … help maintain an awareness of new and emerging security threats and trends. You will be responsible for identifying, assessing, validating and communicating new vulnerabilities across the other technical teams, ensuring the vulnerability management process is followed. Where required you will work with other IT teams to provide guidance ...

Cyber Defence team delivering high-profile engagements across Government, Defence and commercial clients. Key requirements: CREST CCT-App certified (or working towards) Strong application security testing experience Web application, API and mobile testing expertise Excellent technical reporting and client-facing skills UK cyber security industry experience SC clearance … eligibility Desirable: CCT-INF NCSC CTAS/CPA knowledge Defence or Government experience Threat Intelligence or security research background What's on offer: Interesting and challenging Government and Defence projects Hybrid working Ongoing training and development Strong career progression Competitive salary and benefits If you're passionate about offensive ...

Graduate Security Consultant/Penetration Tester - Bristol - £28,000-34,000 We're looking for a motivated graduate to join a cyber consultancy team in Bristol and begin building a career in security consulting and penetration testing, with structured mentorship and training from day one. This … genuine entry point into the industry - not just a support role, but a proper foundation for a long-term career in offensive security. What you'll be doing: Carrying out security assessments and vulnerability scans across client systems, networks and applications Taking part in penetration testing engagements under ...

global financial services organisation seeks a Principal Cybersecurity Engineer to help build the next generation of data-driven security capabilities at exceptional scale.This is a senior (Director grade) individual contributor position. The role requires a candidate with deep cyber expertise and elite hands-on software engineering ability, who still … wants to spend around 40-50% of their time coding.You will work on complex security challenges across threat detection, anomaly identification, cyber automation and advanced analytics, turning vast volumes of security telemetry into practical protection.The ideal candidate may come from a security product vendor, cyber start ...

Security Testing Practice Lead London (Hybrid 23 days per week) £85,000£100,000 DOE + Bonus + Benefits Lead a Growing Security Testing Practice We're looking for an experienced Security Testing Practice Lead to join a fast-growing cybersecurity consultancy. This is an opportunity … lead a talented team, shape the future of our Offensive Security services and remain hands-on with complex testing enga click apply for full job details ...

cybersecurity consulting firm is seeking a Principal Security Consultant responsible for leading red team operations and providing adversarial simulation expertise. The ideal candidate has over 5 years of relevant experience, holds a CCRTM or CCSAM certification, and possesses in-depth knowledge of offensive security tools and frameworks. … communication skills, the ability to work both independently and in teams, and a willingness to occasionally travel. Join us in our mission to transform security operations. #J-18808-Ljbffr ...

communicate emerging threats, including adversary behaviours, malware, and infrastructure, while ensuring intelligence outputs are operationally relevant, technically robust, and aligned to business and security priorities.Operating across the full intelligence lifecycle, the role transforms complex technical findings into meaningful insights for both technical and non‐technical stakeholders, enabling the organisation … anticipate adversary activity, enhance detection engineering, support incident response, and advance intelligence‐led security operations. The role also contributes to continuous improvement through research, tooling development, collaboration with wider security teams, and active participation in the broader threat intelligence community.Key ResponsibilitiesThreat Intelligence Analysis and Research:Identify, track ...

team in London. You will identify vulnerabilities across networks, applications, and cloud environments, delivering actionable insights to reduce risk exposure. Ideal candidates have deep offensive security experience, knowledge of exploits and security protocols, and a drive to evolve with today’s threat landscape. Hybrid or fully remote ...

Darktrace in London is seeking a hands-on Penetration Tester to identify security risks across the organisation's digital landscape. You will conduct tests on web applications, networks, APIs, mobile apps and cloud environments, and deliver actionable insights to security and development teams. You will produce detailed reports ...

responsible for identifying vulnerabilities across networks,applications, and cloud infrastructure and providing actionable insights toreduce risk exposure. Ideal candidates have deep experience in offensive security.Testing, a strong understanding of exploits and security protocols, and a driveto continuously evolve with today’s fast-moving threat landscape. Job Responsibilities Plan … execute, and report on penetration tests across networks, webapplications, APIs, mobile, and cloud environments Conduct red team engagements , including simulated phishing, socialengineering, and physical security assessments Identify,document, and prioritise vulnerabilities and misconfigurations Useboth manual techniques and automated tools (e.g., Burp Suite, Metasploit,Nmap) Collaboratewith blue team and remediation ...

. IaC Expert: Professional mastery of Terraform or similar. CI/CD Veteran: Proven track record of building deployment pipelines that don't break. Security First: Deep understanding of IAM, cloud networking, and security best practices. Preferred & Nice-to-Haves: Experience with ECS, container orchestration, and distributed task … queues (Celery/SQS). Strong Python skills. Familiarity with the Datadog/Grafana observability stack. A background in offensive security, CTFs, or AI/ML infrastructure. What We Offer Competitive Salary + Significant Equity: We want you to have true ownership in the success of the company. ...

Working with a global financial services organisation who are looking for a highly specialised Frontier AI Security contractor to help deliver a high-profile project. Details Location - LondonHybrid - 3 days/week in officeDuration - Initially 6 monthsRate - £900-£1000/day Inside IR35 via Umbrella Skills and Experience Required … Very senior, hands-on technical specialist Deep security engineering; hands-on frontier LLM work (evals, agentic loops, failure modes); shipped production systems; product instinct; senior leadership. Core Competencies: Strong AI, cybersecurity , and software engineering experience. Experience with LLM s and frontier AI models rather than traditional machine learning alone. ...

Working with a global financial services organisation who are looking for a highly specialised Frontier AI Security contractor to help deliver a high-profile project. Details Location - London Hybrid - 3 days/week in office Duration - Initially 6 months Rate - £900-£1000/day Inside IR35 via Umbrella Skills … Experience Required Very senior, hands-on technical specialist Deep security engineering; hands-on frontier LLM work (evals, agentic loops, failure modes); shipped production systems; product instinct; senior leadership. Core Competencies: Strong AI, cybersecurity , and software engineering experience. Experience with LLM s and frontier AI models rather than traditional machine ...

HSBC in the United Kingdom is seeking a Head of Adversarial Engineering to lead the adversarial engineering team, build platforms, and drive scalable offensive-security testing aligned to the evolving threat landscape. This role sits between Red Team delivery and security research, translating operational needs into reusable ...

Head of Adversarial Engineering to lead the adversarial engineering team and remain hands‐on in building platforms, infrastructure and automation for safe, auditable offensive-security testing. You’ll set technical direction for AI/agentic tooling, govern guardrails and evaluation harnesses, and drive secure, repeatable operations across cloud ...

necessary. Qualifications Experience in aggregate log analysis (Splunk or others). Knowledge and operational experience with an Endpoint Detection and Response (EDR) platform. Offensive security/adversarial mindset and knowledge of threat actor TTPs. The ability to perform malware analysis (manual, static, and dynamic). Minimum … years of related security or technology experience in large enterprise environments. What we offer Wellbeing leave day per year and a minimum of 25 days of annual leave. 26 weeks’ paid parental leave for primary caregivers along with 12 days of paid transition leave upon return to work ...

Job Description: Salary Range: £50,000 - £60,000 Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We’re looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You’ll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing techniques. ...

About the Role: We’re looking for a Penetration Tester to join our clients growing cybersecurity team. You’ll conduct network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear … remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing techniques. Requirements UK National (security clearance eligibility required). 1–3 years’ experience in penetration testing or offensive security. Strong technical understanding of attack methods, tools, and frameworks. Excellent ...