1 to 25 of 50 Permanent Penetration Testing Jobs in London

CHECK Team Leader Penetration Tester

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
CHECK Team Leader Penetration Tester | Security Cleared | £80-90k | Remote We're working with a leading cyber security consultancy looking to grow their penetration testing capability with the addition of a CHECK Team Leader (CTL) This is an opportunity to join … largest CHECK-accredited, security-cleared testing environments, delivering high-impact testing across complex and highly secure customer estates. The role is primarily remote, with occasional onsite client engagements as required. Salary: £80-90,000 DOE Work Structure: Remote (with UK client visits) Security Clearance: Active or previously held ...

Offensive Security Engineer (Mobile)

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
across iOS and Android environments, simulating real-world attack scenarios to identify vulnerabilities before they can be exploited. The role combines hands-on offensive testing, exploit development, research into emerging threats, and close collaboration with engineering teams to ensure vulnerabilities are remediated effectively. This position would suit someone … breaking mobile protections, and staying ahead of evolving threats in areas such as biometrics, authentication, and device compromise. Key Responsibilities: Conduct advanced mobile application penetration testing across iOS and Android Perform reverse engineering, runtime manipulation, and instrumentation attacks Simulate realistic adversarial scenarios including: Rooted and jailbroken devices Emulator ...

Senior Security Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
will implement and maintain robust security systems and protocols across the IT infrastructure, conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, implement preventative measures to protect against cyber threats, monitor the security infrastructure, detect and respond to potential threats, and mentor and develop … Manage MDM/MAM and Conditional Access Manage security certificates and keys Deliver Cyber Security Awareness Training Remediate vulnerabilities and weaknesses identified during penetration testing Experience – Essential CrowdStrike EDR Mimecast Mail Security Gateway Duo Okta Rapid7 IVM, Tenable IO or Nessus Palo Alto Firewalls and Panorama InTune ...

Cyber Security Analyst / Operations Engineer

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 per annum
Support general IT administration and systems management tasks Work closely with internal technical teams on security operations initiatives Gain exposure to SOC operations and penetration testing activities What We’re Looking For Degree in Computer Science, Cyber Security, Information Technology, or a related field Strong understanding of networking … Essential) Previous experience in IT support, cybersecurity, or systems administration Certifications such as CompTIA Security+ or Network+ Exposure to SOC environments, security monitoring, or penetration testing Experience in a client-facing technical role Understanding of endpoint security, vulnerability management, or threat detection tools Why Join Career Development – Opportunity ...

Senior Security Cloud Engineer

Hiring Organisation
Health Hero
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
security posture. As an experienced Cloud Security Engineer, your working day will include but not be limited to: DevSecOps & SDLC Champion integration of security testing into CI/CD pipelines across all development teams and usage of automated security gates: SAST, DAST, dependency scanning, secrets detection Enable self-serve … mitigation plans Track and remediate vulnerabilities across infrastructure Manage customer initiatives related to due diligence when required to Support and develop annual programme of Penetration Testing and associated remediations Stakeholder Engagement Partner with internal and stakeholder management to support any requirements from the security function - particularly governance ...

Senior Security Engineer

Hiring Organisation
Taylor James Resourcing
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
implement and maintain robust security systems and protocols across the IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, and implement preventative measures to protect against cyber threats. You will monitor the security infrastructure and detect and respond to potential threats. … SSO.* Manage MDM\MAM and Conditional Access* Manage security certificates and keys.* Deliver Cyber Security Awareness Training* Remediate vulnerabilities and weaknesses identified during penetration testing.Experience - EssentialThe successful candidate will have a good working knowledge and experience in managing the majority of the following technology stack * CrowdStrike EDR* Mimecast Mail ...

Senior Security Engineer

Hiring Organisation
Taylor James Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
implement and maintain robust security systems and protocols across the IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, and implement preventative measures to protect against cyber threats. You will monitor the security infrastructure and detect and respond to potential threats. … SSO. * Manage MDM\MAM and Conditional Access * Manage security certificates and keys. * Deliver Cyber Security Awareness Training * Remediate vulnerabilities and weaknesses identified during penetration testing. Experience - Essential The successful candidate will have a good working knowledge and experience in managing the majority of the following technology stack * CrowdStrike ...

Red Team Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£60,000
Team Engineer | Adversary Simulation Ready to make the move into red teaming properly? You've been building your offensive security skills - maybe in penetration testing, maybe through personal research and labs - and you're ready for a role that lets you focus entirely on adversary simulation. This … that tells a real attacker story Learning how engagements are scoped, structured, and presented to clients What We're Looking For: A background in penetration testing or offensive security, with a growing interest in red teaming specifically Solid foundations in Active Directory and at least one cloud environment ...

Security Architect (API / Product Security)

Hiring Organisation
Pontoon Solutions
Location
City of London, London, United Kingdom
security issue, do so. • Facilitate risk remediation but also challenge decisions and status-quo. • Facilitate in assurance activities like penetration testing, purple testing, app assurance. • Build quarterly/monthly roadmaps for security activities and plan them. You will need To excel in this position, we expect ...

Software Architect

Hiring Organisation
Jobleads-UK
Location
Bromley, England, United Kingdom
Gateway), optimizing for performance, security, and cost. AI Enablement: Drive the responsible adoption of AI and GenAI across the SDLC, including development acceleration, testing, and automation, while ensuring strong governance and quality standards. Take technical ownership of AI‐driven product enhancements. Cost Optimisation: Reduce total cost of ownership through … Security Engineering: Applied knowledge of OWASP, OAuth2, MFA, and secure identity patterns, embedded within end‐to‐end system design. Quality & Assurance: Experience with unit testing and security testing practices (SAST, DAST, SCA, penetration testing) to ensure robust and secure delivery. Fringe Benefits Bachelor’s degree ...

Senior Cyber Security Analyst

Hiring Organisation
Picture More
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
respond to cyber security alerts and incidents Lead and support incident response activities Conduct threat hunting and threat modelling exercises Manage vulnerability remediation and penetration testing activities Support and improve SIEM, EDR/XDR and security tooling Provide security guidance across infrastructure and change projects Drive security best ...

CHECK Team Leader Penetration Tester

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
CHECK Team Leader Penetration Tester Security Cleared £80-90k Remote We're working with a leading cyber security consultancy looking to grow their penetration testing capability with the addition of a CHECK Team Leader (CTL) This is an opportunity to join … largest CHECK-accredited, security-cleared testing environments, delivering high-impact testing across complex and highly click apply for full job details ...

Senior Information Security Analyst

Hiring Organisation
CONEX EUROPE LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
firms' security policies and standards. Conduct risk assessments and recommend security improvements. Provide guidance on secure configuration and hardening the security of systems. Manage penetration testing activities conducted by third party testers and any remediation activities required. Fulfil 3rd line support and service request tickets. Develop, document ...

Information Security, Assistant Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
e.g., firewalls/WAF, SIEM, anti-malware, mobile application security, IAM/PAM) with exposure to cloud security (AWS). Experience conducting vulnerability assessments, penetration testing, and security evaluations, with the ability to analyse events and deliver effective remediation. Solid understanding of the cyber threat landscape, incident/ ...

Senior Penetration Tester

Hiring Organisation
Arcus Search
Location
London Area, United Kingdom
Senior Penetration Tester What You’ll Do You’ll be on the front lines of our security efforts, thinking like an attacker to help us stay one step ahead. As a Senior Offensive Security Engineer, you’ll break things (responsibly), uncover weaknesses, and help us build stronger, more resilient … curious, pragmatic, and love breaking things to make them better. You don’t just find problems — you help fix them. Have solid experience in penetration testing and offensive security Can spot vulnerabilities in code (especially Java and Node.js) Understand modern architectures — AWS, microservices, APIs Communicate clearly and give ...

Cyber Security Engineer, Senior, SIEM - Hybrid, London 90k

Hiring Organisation
Langley James Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Manage MDM/MAM solutions via Microsoft Intune, execute vulnerability scans/remediation (Rapid7 IVM), and manage security certificates (Digicert). Governance & Culture: Remediate penetration test findings, contribute to ad-hoc security architecture projects, and deliver security awareness training (KnowBe4). Requirements Industry Experience: A strong technical background within … Financial Services or a structured SOC/Penetration Testing environment. Core Stack Familiarity: Deep hands-on experience with enterprise tools like CrowdStrike, Palo Alto, Entra ID, Okta, Mimecast, or Rapid7. Soft Skills: Exceptional communication and problem-solving skills, with the ability to interface with the wider business. Certifications ...

BISO for R&B and Corporate Platforms

Hiring Organisation
WTW
Location
Greater London, United Kingdom
Employment Type
Full Time
teams delivery of the security change programme. Provide support to the business and technology teams to understand and address vulnerabilities within SLA, identified through penetration testing, vulnerability scanning and red team exercises Foster relationships with internal business units to enhance cyber security communication, including knowledge of threats, vulnerabilities … team, focused on the delivery of Sarbanes Oxley (SOX) audit for Technology. A comprehensive understanding of information security services (security operations and offensive security testing) A strong understanding of SOX and other regulatory requirements, i.e. NYDFS, DORA. Experience of strategic planning and oversight of cyber incident response and crisis ...

Cyber Security Lead (UK)

Hiring Organisation
MSI Reproductive Choices
Location
London, W1T 6LP, United Kingdom
Salary
£53608.48 to £60307.66
/UK standards. Strong incident response, analytical, and problemsolving skills. Knowledge of AI/ML risks and AI governance. Experience with phishing campaigns, penetration testing, and remediation. Excellent communication skills across technical and senior stakeholder groups. Organised, proactive, and committed to continuous learning. About ...

Banking Job - Mandarin speaking Information Security Manager (Banking) - rj

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Security Monitoring Oversee cyber security measures including vulnerability management, access control, security monitoring and incident detection. Ensure regular vulnerability assessments, security reviews and penetration testing are conducted. Incident Management Establish and maintain procedures for managing information security incidents. Coordinate investigation, response and reporting of cyber security incidents. Operational ...

Mandarin speaking Information Security Manager (Banking)

Hiring Organisation
People First
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Security Monitoring Oversee cyber security measures including vulnerability management, access control, security monitoring and incident detection. Ensure regular vulnerability assessments, security reviews and penetration testing are conducted. Incident Management Establish and maintain procedures for managing information security incidents. Coordinate investigation, response and reporting of cyber security incidents. Operational ...

Application Security Engineer

Hiring Organisation
Health Hero
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
London or Bristol office two days per week. About the role You will own security across the software development lifecycle, embedding automated security testing into CI/CD pipelines and enabling development teams to ship secure code quickly. This role works closely with UK and France engineering teams. … experienced Application Security Engineer, your working day will include but not be limited to: DevSecOps & Pipeline Security Implement and maintain security testing in GitLab CI pipelines Configure and tune SAST, DAST, dependency scanning, and secrets detection Build automated security gates that balance rigour with delivery velocity Enable self-serve ...

Head of Cyber Defend / CERT

Hiring Organisation
Prime Personnel
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
incidents in real-time. Collaborate with teams to conduct incident investigations and develop response plans. Lead proactive threat hunting initiatives. Manage vulnerability assessments and penetration testing programs. Develop and maintain threat intelligence capabilities. Essential experience includes: Extensive experience in managing cyber security teams and programs. In-depth knowledge ...

Technical Cyber Security Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
securing the digital future. As a leading UK provider of cybersecurity solutions, we deliver cutting‐edge services in Managed Detection & Response (MDR), Penetration Testing, Security Operations, and Strategic Consulting. We’re large enough to offer exciting opportunities, yet agile enough to ensure every voice is heard. At Cyberfort ...

Head of IT

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
identity protection measures are implemented and maintained. Lead workplace cyber security awareness and training programmes to promote a strong security culture. Manage vulnerability assessments, penetration testing, and remediation planning. Develop and maintain incident response and cyber crisis management plans. Compliance, GDPR & ISO Accreditation Ensure compliance with General Data ...

Information Security Manager (UK/Remote) room London home work

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
security controls and identify areas for improvement. Performing security risk and control assessments for new products or initiatives. Working with third party InfoSec auditors (penetration testing, PCI compliance etc.). Conduct regular risk assessments and vulnerability assessments to identify security gaps and develop appropriate mitigation plans. Conducting regulatory … laws. Answering regulatory requests related to information security. Managing information security incidents. Oversee information security risks associated with outsourced services and intra-group arrangements. Testing the annual information security control plan in collaboration with the wider Information Security and Technology teams. What we offer: Real influence on shaping ...