51 to 75 of 171 Penetration Testing Jobs in London

Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS systems Deliver cybersecurity awareness training and lead ad-hoc security projects Support and resolve issues identified during penetration testing Ideal Experience We’re looking for someone with strong hands-on experience in most of the following technologies: Essential: CrowdStrike EDR Mimecast Duo, Okta Rapid7 IVM, Tenable … patching Kali Linux, Metasploit, NMAP, BurpSuite Candidate Profile Professional certifications such as CISM, MS SC100/200/900, OSCP are advantageous Background in financial services, SOC environments, or penetration testing preferred Strong interpersonal and communication skills, with the ability to engage across teams and deliver training effectively Able to manage multiple priorities and collaborate cross-functionally What More ❯

Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS systems Deliver cybersecurity awareness training and lead ad-hoc security projects Support and resolve issues identified during penetration testing Ideal Experience We're looking for someone with strong hands-on experience in most of the following technologies: Essential: CrowdStrike EDR Mimecast Duo, Okta Rapid7 IVM, Tenable … patching Kali Linux, Metasploit, NMAP, BurpSuite Candidate Profile Professional certifications such as CISM, MS SC100/200/900, OSCP are advantageous Background in financial services, SOC environments, or penetration testing preferred Strong interpersonal and communication skills, with the ability to engage across teams and deliver training effectively Able to manage multiple priorities and collaborate cross-functionally What More ❯

tech and collaborate with some of the brightest minds in the industry. Desired Experience (full job spec available): Strong experience working in technical security roles Experience in vulnerability assessment, penetration testing, and vulnerability management processes, etc. Familiarity with security incident response procedures. Excellent communication skills and the ability to collaborate with cross-functional teams. Experience with Python scripting More ❯

tech and collaborate with some of the brightest minds in the industry. Desired Experience (full job spec available): Strong experience working in technical security roles Experience in vulnerability assessment, penetration testing, and vulnerability management processes, etc. Familiarity with security incident response procedures. Excellent communication skills and the ability to collaborate with cross-functional teams. Experience with Python scripting More ❯

part of our working culture. When we feel supported in the workplace and at home, there's nothing we can't achieve. BASIC QUALIFICATIONS Extensive experience performing security investigations, penetration testing, and/or incident response in the context of large organizations. In-depth understanding of security threats, hands-on experience detecting and defending from cyber attacks, and More ❯

required Familiar with NIST, ISO 27001, ITIL Azure - 5 years experience Info Sec (Azure AD, Defender, Sentinel) PIM/PAM Audits and report writing Assessments Vulnerability Management and Pen Testing Zero Trust Architecture Automation (eg powershell, python More ❯

required Familiar with NIST, ISO 27001, ITIL Azure - 5 years experience Info Sec (Azure AD, Defender, Sentinel) PIM/PAM Audits and report writing Assessments Vulnerability Management and Pen Testing Zero Trust Architecture Automation (eg powershell, python More ❯

CHECK Senior Infrastructure Penetration Tester PGI is a global consultancy that helps organisations build digital resilience. We deploy our people to implement solutions on behalf of clients or to support them in developing their capabilities. Our Penetration Testers work with organisations of all sizes and types to detect and remediate vulnerabilities. They help identify areas lacking sufficient protection. … could exploit, and makes recommendations to safeguard assets. What you'll be doing: Providing professional cybersecurity consultancy to internal and external stakeholders. Leading the delivery of PGI's infrastructure penetration testing. Collaborating on the design and delivery of new and existing service lines related to offensive security assessments. Supporting and often leading technical pre-sales, proposal writing, and client … ensure successful outcomes. Mentoring security consultants or clients by sharing knowledge and overseeing skill development. Participating in exercises such as Capture The Flag (CTF) challenges. Providing accurate scoping of penetration testing opportunities for sales activities. Supporting sales activities with proposals and client presentations. Supporting marketing with subject matter expertise and content development. Developing and maintaining technical skills and More ❯

and advise on secure architecture and design for new and existing applications. Stay up to date with the latest security threats and technologies to proactively improve security measures. Conduct penetration testing and code reviews to identify and mitigate risks. Contribute to the development of security policies, procedures, and best practices. Requirements: Proven experience in application security, penetration testing, and secure software development practices. Strong understanding of security vulnerabilities (OWASP Top 10, etc.) and secure coding techniques. Experience with security tools (e.g., static/dynamic analysis tools, vulnerability scanners). Familiarity with common web technologies (e.g., Java, Python, JavaScript, SQL). Knowledge of security frameworks and standards (e.g., NIST, ISO 27001). Strong problem-solving skills More ❯

Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS systems Deliver cybersecurity awareness training and lead ad-hoc security projects Support and resolve issues identified during penetration testing Ideal Experience We're looking for someone with strong hands-on experience in most of the following technologies: Essential: CrowdStrike EDR Mimecast Duo, Okta Rapid7 IVM, Tenable … patching Kali Linux, Metasploit, NMAP, BurpSuite Candidate Profile Professional certifications such as CISM, MS SC100/200/900, OSCP are advantageous Background in financial services, SOC environments, or penetration testing preferred Strong interpersonal and communication skills, with the ability to engage across teams and deliver training effectively Able to manage multiple priorities and collaborate cross-functionally What More ❯

specialised government and commercial contracts that will allow you develop and grow your skills within the industry. As a Cyber Defence Assistant Manager you will; Be responsible for the testing and oversight of junior testers under your leadership Completing peer reviews of your deliverables (QA) Developing a rapport with clients both inside and outside our client company along with … years' experience within the field Have SC clearance or the ability to go through SC clearance Any SecOps related certification (including security vendor certificates) A understanding and demonstration of penetration testing and red-tanning (NCSC and CREST accredited schemes) Strong technical background in computing, networks and programming Excellent communication skills A genuine interest to work for multi-national … essentials for this role; A CISSP,CISM,CCSP,GIAC certification or any equivalent Knowledge of working in secure environments and accredited labs R&D experience Threat intelligence experience Application testing experience Reference: AMC/DRI/CBAM Postcode: E14 #dari More ❯

security engineer. The successful candidate will have experience gained in a broad, hands-on security engineering position. Relevant certifications such as CISM and/or Microsoft certifications are desirable. Penetration testing experience or certifications would be beneficial. Hybrid working is available (3 days in central London). The salary is £75,000 base plus benefits and bonus. More ❯

make well-considered and informed recommendations to IT Security Manager. Examine security systems and web applications. Monitor security access across the organisation. Assist with conducting security assessments through vulnerability testing and risk analysis within good time and to a high standard. Assist with performing both internal and external security audits. Analyse security logs from various systems for breaches and … to fulfill security requirements. Review daily security logs for abnormal events and escalate them to the IT Security teams in a timely manner. Conduct technical vulnerability assessments and regular penetration testing of IT systems and processes to identify potential vulnerabilities and provide recommendations for risk mitigation. Knowledge, skills and experience Essential skills: BSc in Cyber Security, Computer Science … a robust and trustworthy security configuration for various devices, ensuring that all security protocols are effectively set up to protect against unauthorized access and potential threats. Substantial experience of testing and reviewing security solutions. Practical experience of effectively managing cyber incidents. Strong reasoning and advisory skills, with the ability to effectively engage with and influence senior management. Able to More ❯

Responsibilities Your responsibilities will include: Security reviews for new products, technologies, and services Secure design, architecture, and implementation Secure development life-cycle (SDLC) practices including threat modeling and security testing Influence decision-makers and stakeholders to achieve a consistently high security bar Conduct network and/or application penetration testing Create security guidance and documentation Develop security More ❯

auditors, and address any gaps or risks. Collaborate with engineering teams to embed secure coding practices and tackle vulnerabilities. Manage security assessments, audit responses, and incident investigations. Run regular penetration testing, disaster recovery simulations, and security awareness training. Streamline access controls, onboarding/offboarding processes, and device compliance using SSO/SCIM and MDM platforms. Conduct third-party More ❯

auditors, and address any gaps or risks. Collaborate with engineering teams to embed secure coding practices and tackle vulnerabilities. Manage security assessments, audit responses, and incident investigations. Run regular penetration testing, disaster recovery simulations, and security awareness training. Streamline access controls, onboarding/offboarding processes, and device compliance using SSO/SCIM and MDM platforms. Conduct third-party More ❯

Key responsibilities include: Designing security architectures, solutions, and controls to safeguard client assets and data. Developing incident response plans and assisting customers in their implementation. Performing security assessments , including penetration testing, to identify vulnerabilities and proposing mitigation strategies. Recommending and implementing security tools such as firewalls, IDS, endpoint protection, and DDoS mitigation solutions. Building strong client relationships through More ❯

with engineering and DevOps teams to implement security controls across cloud infrastructure (ideally AWS), including access control, encryption, and logging. Leading the incident response process and managing third-party penetration testing and vulnerability management activities. The ideal Information Security Lead will have experience with the following: 3-5 years of hands-on experience in an information security or More ❯

for personnel security, physical and logical accreditations, education, awareness and training, assurance, and cyber security. BASIC QUALIFICATIONS Degree or Equivalent experience in a technical field. Experience performing security investigations, penetration testing and/or incident response in the context of large organisations. Understanding of security threats, hands-on experience detecting and defending from cyber attacks, and experience using More ❯

following areas as possible, and be able to demonstrate it: Security Detection and Monitoring Detection Engineering Malware Analysis (Static and Dynamic) Threat Hunting and Threat Intelligence (MITRE ATT&CK) Penetration Testing Security Automation (SOAR) It would help if you had experience with the following: SIEM tools (Microsoft Sentinel, Splunk, ELK, Siemplify) Vulnerability Management (Qualys, Nessus, Nexpose) Anti-Malware More ❯

multi vendor solutions, including Microsoft security, compliance and identity services. Managed SOC Managed XDR Cloud Security (M365, Azure, AWS) Managed SIEM (Sentinel + multi vendor) Security Professional Services Pen Testing Red Teaming ISO27001/Cyber Essential Plus Apps/Infra testing You role will be to drive sales across through a mix of marketing campaigns, events and direct More ❯

networking concepts such as software-defined networking, routing, virtual private networks, load balancers, and firewalls. Experience with security concepts such as encryption, identity management, access control, attack vectors, and penetration testing. Excellent presentation, communication, and interpersonal skills. Ability to travel to customer sites as needed. Benefits Medical, Dental, Vision PTO Pension Professional Development Macbook Laptop Remote work flexibility More ❯

Senior Penetration Tester – Must be eligible to obtain security clearance We are looking for a Senior Penetration Tester/Ethical Hacker to work freelance for a company who delivers high-quality security solutions for an array of different clients from varied industries. Due to an unprecedented increase in workload, we are looking for a reliable Penetration Tester … to work on overflow projects, delivering infrastructure penetration testing, including broader vulnerability assessments and security audits as needed. You will also produce clear, professional reports and deliver testing debriefs. This opportunity would suit someone who is already in a permanent position, looking for freelance work in addition to their main role, or someone who is happy with … nature of work and client base, all applicants but be able to obtain SC clearance. Day rate: £400 - £500 per day, London – remote/hybrid Requirements Proven experience in Penetration Testing/Ethical Hacking Strong knowledge of network and cloud infrastructure security. Up-to-date on the latest cybersecurity threats and technologies. Strong knowledge in pen testing More ❯

Job Title: Penetration Tester Role: An exciting opportunity for a mid-level Penetration Tester to join a dynamic and collaborative security consultancy based in London. This role is ideal for a proactive individual with a hacker’s mindset and broad security testing experience across applications, networks, cloud platforms, and more. You'll be a key player in … delivering high-quality penetration tests while also supporting client advisory, team development, and process improvement. What’s in it for you? Autonomy and ownership in conducting diverse penetration testing engagements. Ongoing professional development with access to industry events and training. A positively charged work environment with flexibility for hybrid working post-probation. Responsibilities: Conduct web, mobile, API … infrastructure, cloud, and wireless penetration testing. Create detailed technical reports and deliver test findings directly to clients. Provide remediation advice and post-assessment consultancy. Contribute to internal testing methodologies and Red Team/social engineering activities. Mentor junior team members and support collaborative delivery of projects. Occasionally support the creation of marketing materials such as research papers and More ❯

Join our dynamic Offensive Security Team! As we expand, we are looking for a Pentester/Red Teamer who is enthusiastic about undertaking a range of security assessments, including penetration testing, red team exercises, vulnerability scanning, and physical access evaluations for our clients. Key Responsibilities: Client Engagement Management: Lead client projects, ensuring clear communication, timely delivery, and exceeding … expectations. Act as the primary liaison, providing updates and guidance. Security Assessment Execution: Conduct detailed security assessments, including penetration testing and vulnerability analysis. Systematically identify and document vulnerabilities across network, application, and physical layers. Prepare concise reports for both technical and non-technical stakeholders. Red Team Challenges: Participate in red team simulations, encompassing social engineering attacks and advanced … penetration tactics. Post-initial access, perform internal testing to escalate privileges and gain high-level access. Document methodologies and outcomes, providing actionable insights for enhancing security. Technical Proficiencies: Python/Scripting: Demonstrate a high level of proficiency in Python, essential for writing custom scripts to automate tasks, analyze data, and develop unique tools for penetration testing. This More ❯