51 to 75 of 237 Penetration Testing Jobs

Company Mission and Vision AI-Augmented Pentesting: Human Expertise Where It Matters Most. At OnSecurity, we're redefining cybersecurity through AI-augmented penetration testing — the perfect blend of AI efficiency and human ingenuity. We deliver comprehensive, CREST-approved testing that saves time and money without compromising quality. … platform combines AI-driven automation with expert human insight to provide faster, more accurate results. The outcome? Streamlined testing, actionable intelligence, and security at scale. We're revolutionising how organisations protect their digital assets, helping businesses stay secure, resilient, and one step ahead of threats. Working Hours and Location ...

Company Mission and Vision AI-Augmented Pentesting: Human Expertise Where It Matters Most. At OnSecurity, we're redefining cybersecurity through AI-augmented penetration testing — the perfect blend of AI efficiency and human ingenuity. We deliver comprehensive, CREST-approved testing that saves time and money without compromising quality. … platform combines AI-driven automation with expert human insight to provide faster, more accurate results. The outcome? Streamlined testing, actionable intelligence, and security at scale. We're revolutionising how organisations protect their digital assets, helping businesses stay secure, resilient, and one step ahead of threats. Working Hours and Location ...

helping organisations of all sizes strengthen their security posture and achieve recognised certifications. They are looking for a skilled Cyber Security Consultant specialising in Penetration Testing to deliver high-quality security testing and assurance across a diverse client base. You'll lead and support security assessments including … network, web application, mobile, cloud, wireless, and internal infrastructure testing , alongside Cyber Essentials and Cyber Essentials Plus (CE/CE+) assessments. This role suits someone who enjoys hands-on technical work, clear reporting, and helping clients improve their security posture in practical, measurable ways. This is primarily an office ...

Role: Penetration Tester Duration: 12 month Contract Pay: Up to 500 per day (Outside IR35) Location: Fully Remote Excellent long term contract for an experienced Penetration Tester to support a large-scale international security programme, delivering high-quality offensive security assessments across applications, infrastructure, and networks. … joining a specialist team responsible for delivering structured penetration tests, vulnerability assessments and security design reviews. Working within a defined AGILE sprint model, you will plan, execute and report on testing activities, producing clear technical findings, risk assessments and remediation guidance. Strong communication skills are essential ...

Penetration Tester (OSCP) Location: Remote Position Type: Full-time Reports to: Senior Penetration Tester About the Organisation A high-growth security consultancy working across government, space programmes, and FTSE 100 organisations is expanding its offensive security function. The team delivers complex, high-impact testing and simulation work … delivering cutting-edge work, this is an opportunity to develop quickly in a technically challenging environment. Role Overview We’re looking for a Penetration Tester/Red Team Consultant with 1–3 years’ experience who thrives on variety, problem-solving, and continuous learning. You’ll deliver offensive security assessments ...

Penetration Tester (OSCP) Location: Remote Position Type: Full-time Reports to: Senior Penetration Tester About the Organisation A high-growth security consultancy working across government, space programmes, and FTSE 100 organisations is expanding its offensive security function. The team delivers complex, high-impact testing and simulation work … delivering cutting-edge work, this is an opportunity to develop quickly in a technically challenging environment. Role Overview We’re looking for a Penetration Tester/Red Team Consultant with 1–3 years’ experience who thrives on variety, problem-solving, and continuous learning. You’ll deliver offensive security assessments ...

ReRoot Cyber is seeking a highly skilled and forward-thinking senior penetration tester to join one of the UK’s most respected testing teams. They are an impressive technical team with a genuinely collaborative culture who have the full backing from management to deliver nothing but value adding … problem with 2+1’s and pub sec engagements... but that’s not where they phish. Most of your time will be spent on advanced testing and large-scale engagements that give you the opportunity to collaborate with wider technologists. (engineers, developers and blue teamers) We want to hear from ...

members of societies at large to live, work and develop sustainably, in a safe and secure information space. We are looking for a Medior Penetration Tester with a passion for cybersecurity and a strong drive to protect organizations from emerging threats. You will be responsible for conducting penetration tests, identifying vulnerabilities, and providing actionable insights to enhance our clients' security posture. Key Responsibilities Perform penetration tests on networks, applications, and systems. Identify vulnerabilities and deliver clear, concise remediation advice. Apply industry-standard methodologies (PTES, Cyber Kill Chain, ISAM, etc.). Use security tooling such as Metasploit ...

effectively. Implement and manage security measures including firewalls, encryption, and endpoint protection. Maintain clear documentation of breaches, assessments, and remediation actions. Conduct vulnerability testing, penetration testing, and risk assessments. Collaborate with the IT Security Manager to identify and mitigate network vulnerabilities. Analyse logs from multiple sources ...

effectively. Implement and manage security measures including firewalls, encryption, and endpoint protection. Maintain clear documentation of breaches, assessments, and remediation actions. Conduct vulnerability testing, penetration testing, and risk assessments. Collaborate with the IT Security Manager to identify and mitigate network vulnerabilities. Analyse logs from multiple sources ...

Perform regular audits to ensure that systems and networks are operating securely. Security Tools Implementation: Implement security tools to enhance network and system security. Penetration Testing: Work with 3rd Parties to conduct penetration testing to identify vulnerabilities in the system. Stay Updated: Stay updated ...

devices. As the primary point of contact for security-related matters, the person will manage our external SOC, oversee patch and vulnerability management, coordinate penetration tests, and lead the operation of the Microsoft Defender XDR suite including Sentinel. It will also play a key role in incident handling … root-cause analysis. Lead patch management processes, ensuring that critical vulnerabilities are identified and remediated within agreed service-level timelines. Manage externally conducted penetration testing activities, including planning, oversight, and tracking remediation of findings to closure. Administer and operate the Microsoft Defender XDR suite, including Microsoft Sentinel ...

client's hardware devices Drive DevOps best practices across CI/CD pipelines, monitoring, and deployment Design and maintain a cybersecurity-first architecture, including penetration testing Optimise an Azure-based infrastructure for high availability and cost efficiency Collaborate with cross-functional teams to deliver impactful new features Shape … C#, JavaScript, HTML/CSS PC: C#, XAML, USB-MTP Mobile: Cordova (iOS & Android) Cloud: Microsoft Azure, CI/CD pipelines, version control, automated testing Security: Secure coding, authentication, penetration testing Hardware: Industry-leading devices, digitally integrated What They are Looking For KO2's client is seeking ...

client's hardware devices Drive DevOps best practices across CI/CD pipelines, monitoring, and deployment Design and maintain a cybersecurity-first architecture, including penetration testing Optimise an Azure-based infrastructure for high availability and cost efficiency Collaborate with cross-functional teams to deliver impactful new features Shape … C#, JavaScript, HTML/CSS PC: C#, XAML, USB-MTP Mobile: Cordova (iOS & Android) Cloud: Microsoft Azure, CI/CD pipelines, version control, automated testing Security: Secure coding, authentication, penetration testing Hardware: Industry-leading devices, digitally integrated What They are Looking For KO2's client is seeking ...

client's hardware devices Drive DevOps best practices across CI/CD pipelines, monitoring, and deployment Design and maintain a cybersecurity-first architecture, including penetration testing Optimise an Azure-based infrastructure for high availability and cost efficiency Collaborate with cross-functional teams to deliver impactful new features Shape … C#, JavaScript, HTML/CSS PC: C#, XAML, USB-MTP Mobile: Cordova (iOS & Android) Cloud: Microsoft Azure, CI/CD pipelines, version control, automated testing Security: Secure coding, authentication, penetration testing Hardware: Industry-leading devices, digitally integrated What They are Looking For KO2's client is seeking ...

infrastructure At least 4 years of experience with cloud security engineering Preferred Qualifications: Bachelor's Degree 6+ years of experience Application Security, Threat Modeling, Penetration Testing, Vulnerability Management 4+ years of experience in securing a public cloud environment (e.g. AWS, GCP, Azure) 2+ years experience in e-commerce … experience with Software Security Architecture 1+ years of experience with Application Security 1+ years of experience with Threat Modeling 1+ years of experience with Penetration Testing and/or Vulnerability Management 1+ years of experience with integrating SaaS products into an Enterprise Environment 1+ years of experience with ...

infrastructure At least 4 years of experience with cloud security engineering Preferred Qualifications: Bachelor's Degree 6+ years of experience Application Security, Threat Modeling, Penetration Testing, Vulnerability Management 4+ years of experience in securing a public cloud environment (e.g. AWS, GCP, Azure) 2+ years experience in e-commerce … experience with Software Security Architecture 1+ years of experience with Application Security 1+ years of experience with Threat Modeling 1+ years of experience with Penetration Testing and/or Vulnerability Management 1+ years of experience with integrating SaaS products into an Enterprise Environment 1+ years of experience with ...

infrastructure At least 4 years of experience with cloud security engineering Preferred Qualifications: Bachelor's Degree 6+ years of experience Application Security, Threat Modeling, Penetration Testing, Vulnerability Management 4+ years of experience in securing a public cloud environment (e.g. AWS, GCP, Azure) 2+ years experience in e-commerce … experience with Software Security Architecture 1+ years of experience with Application Security 1+ years of experience with Threat Modeling 1+ years of experience with Penetration Testing and/or Vulnerability Management 1+ years of experience with integrating SaaS products into an Enterprise Environment 1+ years of experience with ...

infrastructure At least 4 years of experience with cloud security engineering Preferred Qualifications: Bachelor's Degree 6+ years of experience Application Security, Threat Modeling, Penetration Testing, Vulnerability Management 4+ years of experience in securing a public cloud environment (e.g. AWS, GCP, Azure) 2+ years experience in e-commerce … experience with Software Security Architecture 1+ years of experience with Application Security 1+ years of experience with Threat Modeling 1+ years of experience with Penetration Testing and/or Vulnerability Management 1+ years of experience with integrating SaaS products into an Enterprise Environment 1+ years of experience with ...

vulnerability analyses for new and existing products. Collaborate with product development, DevOps, and QA teams to integrate security into the product lifecycle. Oversee security testing, including penetration tests, code reviews, and system audits. Investigate security incidents, provide root cause analysis, and define remediation plans. Establish and maintain security … security, with a strong focus on product security. Proven expertise in threat modeling, secure software development, and vulnerability management. Hands-on experience with security testing tools, penetration testing, and code analysis. Strong knowledge of security standards and frameworks (e.g., OWASP, NIST, ISO 27001 Familiarity with cloud security ...

Microsoft security stack, DFIR tooling, SIEM, Microsoft Defender/Sentinel, EDR platforms, timeline analysis, and cloud environments (Azure, AWS, or GCP). * Exposure to penetration testing, including red team or purple team exercises, is advantageous. * Ability to script or automate using Bash, Perl, Python, or PowerShell. * Strong analytical … Security, Threat Hunting, Cyber Threat Intelligence, MITRE ATT&CK, Red Team, Purple Team, Malware Analysis, Cyber Forensics, Security Operations, Security Engineer, On-Call IR, Penetration Testing, Python, PowerShell, Bash, Cyber Defence, CSIRT, MSSP, Network Forensics, Endpoint Forensics, Cloud Security, IR Lead, Security Consultant. ...

growing UK cyber practice is hiring a hands-on Offensive Security Manager to support delivery across its offensive security portfolio. The role blends technical penetration testing with leadership: roughly 50% team management and 50% hands-on testing. You will join a team of 11, working alongside two existing … managers, helping deliver high-quality web, mobile, infrastructure and red team engagements while guiding and mentoring penetration testers at various levels. Key Responsibilities Leadership (50%) Manage and mentor a small group of penetration testers Support project delivery, quality assurance, and work allocation Help build testing capability, processes ...

architecture (primarily Azure) Oversee identity and access management (IAM) and related policies Deliver automation initiatives that improve scalability and efficiency Manage security operations including penetration testing, incident response, and risk assessments Ensure compliance with GDPR, Cyber Essentials, and other relevant frameworks Drive awareness and education on cyber security … welcome all backgrounds Essential Skills & Experience Proven experience leading infrastructure and cyber security functions Strong technical knowledge of Microsoft cloud environments Experience with IAM, penetration testing, and automation tools Good understanding of compliance frameworks (e.g. GDPR, Cyber Essentials) Excellent stakeholder engagement and communication skills Desirable: Relevant certifications such ...

across engineering teams through collaboration, training, and tooling. Perform threat modelling exercises for cloud-native applications, microservices, and infrastructure components. Manage internal and external penetration testing engagements for Funding Circle applications, services, and cloud infrastructure. Collaborate closely with Cloud Platform Engineers, DevX and Product Engineering to ensure security … EKS. Frameworks & Compliance: Strong knowledge of key security frameworks (NIST CSF, MITRE ATT&CK) and standards (CIS Benchmarks, OWASP ASVS), with experience managing external penetration testing and coordinating remediation efforts. Nice to have Experience with specific security platforms/tools (e.g., Wiz, Snyk, Checkmarx, Veracode). Relevant advanced ...

/a* Opportunity to work across vulnerability management and wider security operations* Exposure to class-leading scanning tools and third-party penetration testing* Competitive package (DOE) ABOUT THE CLIENT We're supporting an established organisation with a strong technical footprint that is continuing to invest in its security … systems are scanned, monitored, and assessed for risk. You'll review and interpret vulnerability scan results, assist with scheduling and planning internal and external testing activities, and support the collation and communication of security reports. You'll also liaise with technical and non-technical stakeholders to discuss risk, remediation ...