1 to 25 of 26 Permanent Penetration Testing Jobs in London

SECFORCE is an independent offensive cyber security consultancy specialised in Penetration Testing and Adversary Simulation. Founded in 2008 out of love and passion for the hacking craft, we have grown into a well-respected company based in London, Malta and Greece, with teams across Europe working for top-tier organisations all over the world. What started as a … security. Tasks Collaborate with sales to understand client needs and position appropriate cybersecurity services Deliver technical presentations and demos that communicate the value and scope of our services (e.g., penetration testing, red teaming, etc.) Support the preparation of proposals, statements of work (SOWs), and RFP/RFI responses Scope and define technical requirements and resource estimates for service … pre-sales, consulting, or technical sales support role within cybersecurity or IT services Understanding of the cyber threat landscape and threat actor TTPs Understanding of Cyber Services markets e.g. Penetration Testing, Red Team/Purple Team, Adversary Simulation, etc. Willingness to travel to regular F2F end user meetings Self-starter with a results-oriented mindset and the ability More ❯

effective security controls and countermeasures. Conduct threat modelling exercises to identify potential security risks and vulnerabilities early in the development lifecycle. Conduct in-depth security assessments, code reviews, and penetration testing of applications to identify and mitigate security vulnerabilities. Utilise industry-standard tools and methodologies to assess the security posture of applications and provide actionable recommendations for remediation … person, with the ability to educate and influence on Application Security matters Basic experience in Software Development with any programming language Security Test Management Application Security Assessments Security Assurance Penetration Testing Security Evaluation & Functional Testing Application Security Testing If the above is of interest, please apply with an updated copy of your CV and a member More ❯

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 for clients across the UK, US, and Europe. With a … retention, and a track record of 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, red team operations, and … Responsibilities Deliver red team, purple team, and wider offensive security engagements. Conduct attack simulations, threat modelling, and targeted technical testing. Carry out occasional physical security assessments. Produce high-quality penetration testing and red team reports. Communicate findings clearly to both technical and non-technical stakeholders. Support the development of offensive security services and internal methodologies. Contribute to R More ❯

and resolve cyber incidents promptly and 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 to detect and respond to More ❯

and resolve cyber incidents promptly and 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 to detect and respond to More ❯

security architecture and assurance to OFFICIAL and above classifications. Provide specialist advice and knowledge of Public Cloud (Azure, AWS, GCP) cloud-based security architectures. Define and lead external security testing (e.g ITHC) of solutions on the public cloud (Azure, AWS, GCP), cloud native platforms (Docker, Kubernetes, etc.), and Software as a Service (SaaS) solutions. Formulate HMG Information Assurance Risk … across IaaS, PaaS, SaaS and Serverless architectures Implementing Information Security and Privacy Standards and Frameworks (e.g. ISO 27k, NIST800-53, CIS, GDPR) Leading security working groups and external security testing (ITHC, Penetration Testing, etc) of cloud solutions at high HMG classification levels (OFFICIAL required, SECRET desirable) or equivalent in other industries Designing & delivering secure systems & tooling: Working … and principles Working within environments utilising DevOps, DevSecOps, SRE, CI/CD, Infrastructure & Security as Code (Docker, Git, Terraform) Managing technical assessments of security related technologies, vulnerability assessments and penetration tools and techniques Enabling & informing risk-based decisions: Working with higher impact or more complex risks, advising on the impact and whether this is within risk tolerance Understanding and More ❯

detection/prevention systems (IDS/IPS), antivirus, anti-malware, SIEM (Security Information and Event Management), vulnerability scanners, and data encryption solutions. Manage vulnerability management programs, including regular scanning, penetration testing, and remediation of identified weaknesses. Lead and manage security incident response, including detection, analysis, containment, eradication, recovery, and post-incident review. Develop and maintain robust disaster recovery More ❯

Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. Vulnerability & Risk Management Run regular vulnerability scans and penetration testing activities; track remediation of findings. Evaluate risks and recommend security enhancements or compensating controls. Maintain asset inventories and ensure patching and configuration baselines are followed. Security Governance More ❯

and information systems. You will work within the I&CS team to proactively monitor IT systems; identify, manage and resolve security incidents, vulnerabilities, security alerts and threats; potentially perform penetration testing; and contribute to maintaining security certifications, assurances and accreditations. IMPORTANT Note: This position requires UK National Security Vetting to at least SC level. Please confirm residency below. More ❯

best practices. Strong analytical and prioritization skills with a pragmatic, risk-based approach to decision-making. Leadership experience Nice to have: If you have come from a development/penetration testing background this would be advantageous for my client. Pen testing experience Certifications (CEH)/OSCP This role is on a hybrid basis with 2 - 3 days More ❯

and processes Overseeing BAU security operations, ensuring services are delivered efficiently and in line with SLAs Leading activity across Threat & Vulnerability Management (TVM), PAM, IAM, DLP, Network Security and Penetration Testing Managing outsourced security providers and holding them to account on performance Acting as SME for security improvement projects, aligned to ISO27001/NIST Managing security incidents, including More ❯

and processes Overseeing BAU security operations, ensuring services are delivered efficiently and in line with SLAs Leading activity across Threat & Vulnerability Management (TVM), PAM, IAM, DLP, Network Security and Penetration Testing Managing outsourced security providers and holding them to account on performance Acting as SME for security improvement projects, aligned to ISO27001/NIST Managing security incidents, including More ❯

and implementation of the Colt Vulnerability Management Framework. Enhancing the scope and efficiency of current vulnerability scanning and management tools and integration between them. Design and manage the periodic penetration testing exercise. Collaborating with identified stakeholders to provide specialist guidance and support, ensuring effective vulnerability identification, prioritisation and remediation activity definition. Perform Vulnerability scans using Vulnerability Management tool More ❯

processes. Help proactively assess security risk through product deep dives, threat modeling, and design, architecture and implementation reviews. Review and improve existing security processes related to product assessments, pen testing, and bug bounty findings. Develop product security controls and supervising strategies to grow our threat detection capabilities. Seek opportunities for security tooling and automation. What You'll Bring 5+ … of common vulnerabilities and emerging threats. Experience with authentication and authorization standards, including OAuth and SAML, and their weaknesses. Detailed knowledge of system security vulnerabilities and remediation techniques, including penetration testing and the development of exploits. Experience with Cloud Computing providers like AWS, GCP, Azure. Problem solving skills to resolve problems effectively and creatively while maintaining a high More ❯

will: Define and maintain cyber security policies and procedures, ensuring compliance with key frameworks such as NIST, ISO27001, and Cyber Essentials Plus. Lead and coordinate cyber audits, vulnerability management, penetration testing, and disaster recovery oversight. Manage governance and oversight of risk management processes, ensuring SLAs and compliance objectives are achieved. Communicate cyber security goals and performance to senior More ❯

set standards and build documentation for teams to guide them. You will work closely with both the Cyber and Information Security directorate, and bespoke software teams, helping to organise penetration testing and other security critical tests of applications. What You Need Cyber and Information Security Knowledge: Understanding of cyber and information security principles and how they underpin all More ❯

roadmap Handle varied and complex security challenges, from system reviews to high-level risk assessments Work closely with third-party suppliers in relation to audits, forensic analysis and pen testing Requirements: Experience with ISO 27001 is essential Strong background in cyber security management Proven experience in identifying and mitigating security risks# Ability to make actionable recommendations for security improvements More ❯

roadmap Handle varied and complex security challenges, from system reviews to high-level risk assessments Work closely with third-party suppliers in relation to audits, forensic analysis and pen testing Requirements: Experience with ISO 27001 is essential Strong background in cyber security management Proven experience in identifying and mitigating security risks# Ability to make actionable recommendations for security improvements More ❯

Are you an aspiring penetration tester looking to work with real threats, real tools, and real impact? You’ll be joining a growing cyber security consultancy focused exclusively on keeping critical national infrastructure secure. You’ll support a team of expert ethical hackers, helping test systems, applications, and networks for vulnerabilities - working alongside seasoned professionals while sharpening your offensive … security skills.Expect to contribute to hands-on pen testing engagements, conduct vulnerability assessments, and support threat hunting within a well-established SOC. You'll develop your skills using industry-standard tools, investigate incidents, and provide actionable remediation advice.Role: Junior Penetration TesterLocation: London/HybridSalary: £30,000 - £50,000 (DOE)Ideally, you’ll have: 6+ months of proven penetration or security testing experience Knowledge of Metasploit, Burp Suite, and vulnerability scanning tools Experience with Windows, Linux and Mac operating systems Interest in threat hunting, incident response, and security monitoring CRT/OSCP/Cyber Scheme training or aspirations to achieve them Eligibility for UK Security Clearance If you're looking to build a long-term cyber career More ❯

Are you an aspiring penetration tester looking to work with real threats, real tools, and real impact? You ll be joining a growing cyber security consultancy focused exclusively on keeping critical national infrastructure secure. You ll support a team of expert ethical hackers, helping test systems, applications, and networks for vulnerabilities - working alongside seasoned professionals while sharpening your offensive … security skills. Expect to contribute to hands-on pen testing engagements, conduct vulnerability assessments, and support threat hunting within a well-established SOC. You'll develop your skills using industry-standard tools, investigate incidents, and provide actionable remediation advice. Role: Junior Penetration Tester Location: London/Hybrid Salary: £30,000 - £50,000 (DOE) Ideally, you ll have: 6+ … months of proven penetration or security testing experience Knowledge of Metasploit, Burp Suite, and vulnerability scanning tools Experience with Windows, Linux and Mac operating systems Interest in threat hunting, incident response, and security monitoring CRT/OSCP/Cyber Scheme training or aspirations to achieve them Eligibility for UK Security Clearance If you're looking to build a More ❯

Are you an aspiring penetration tester looking to work with real threats, real tools, and real impact? You’ll be joining a growing cyber security consultancy focused exclusively on keeping critical national infrastructure secure. You’ll support a team of expert ethical hackers, helping test systems, applications, and networks for vulnerabilities - working alongside seasoned professionals while sharpening your offensive … security skills. Expect to contribute to hands-on pen testing engagements, conduct vulnerability assessments, and support threat hunting within a well-established SOC. You'll develop your skills using industry-standard tools, investigate incidents, and provide actionable remediation advice. Role: Junior Penetration Tester Location: London/Hybrid Salary: £30,000 - £50,000 (DOE) Ideally, you’ll have: 6+ … months of proven penetration or security testing experience Knowledge of Metasploit, Burp Suite, and vulnerability scanning tools Experience with Windows, Linux and Mac operating systems Interest in threat hunting, incident response, and security monitoring CRT/OSCP/Cyber Scheme training or aspirations to achieve them Eligibility for UK Security Clearance If you're looking to build a More ❯

data, everywhere. Smart cloud, infrastructure and security solutions, supported by wide-ranging Professional Services and Managed Services capability, we deliver cutting-edge services such as server and storage solutions, penetration testing, compliance and risk management, and our flagship Cloud Solution, a powerful enterprise-grade platform that combines leading software, secure storage, and cloud recovery capabilities. Selling to customers More ❯

data, everywhere. Smart cloud, infrastructure and security solutions, supported by wide-ranging Professional Services and Managed Services capability, we deliver cutting-edge services such as server and storage solutions, penetration testing, compliance and risk management, and our flagship Cloud Solution, a powerful enterprise-grade platform that combines leading software, secure storage, and cloud recovery capabilities. Selling to customers More ❯

Offensive Security Researcher/Security Consultant | Elite Cybersecurity Scale-Up | Fully Remote (Global) Ready to take your offensive security skills to the next level? This is your chance to join a fast-scaling cybersecurity innovator , backed by funding, recognised by More ❯

Offensive Security Researcher/Security Consultant | Elite Cybersecurity Scale-Up | Fully Remote (Global) Ready to take your offensive security skills to the next level? This is your chance to join a fast-scaling cybersecurity innovator , backed by funding, recognised by More ❯