18 of 18 Penetration Testing Jobs in the City of London

Penetration Tester

Hiring Organisation
Advanced Resource Managers
Location
City of London, London, United Kingdom
Penetration Tester Permanent – up to £85k per annum London based – hybrid working – 2-3 days office based (negotiable) Must have CREST CRT Role Overview: We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus understanding on threat intelligence and attack methods. The ideal candidate … will be responsible for managing and conducting advanced penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability ...

Security / Penetration Testing Engineer – London

Hiring Organisation
Cognizant
Location
City of London, London, United Kingdom
quality and speed to promote faster business and technology change, as well as a better customer experience. Key Responsibilities : Gather security requirements and define penetration testing scope by reviewing design and interface documents. Prepare detailed test plans, scenarios, and rules of engagement aligned with CREST and OWASP standards. … Conduct API penetration testing (REST, GraphQL, SOAP) focusing on authentication, authorization, and business logic flaws. Perform UI/Web application penetration testing for vulnerabilities such as XSS, CSRF, SQL Injection, and session management issues. Identify and document security issues with clear reproduction steps, evidence, and remediation ...

Penetration/Security Tester

Hiring Organisation
Cognizant
Location
City of London, London, United Kingdom
increasing quality and speed to promote faster business and technology change, as well as a better customer experience. Responsibilities Gather security requirements and define penetration testing scope by reviewing design and interface documents. Prepare detailed test plans, scenarios, and rules of engagement aligned with CREST and OWASP standards. … Conduct API penetration testing (REST, GraphQL, SOAP) focusing on authentication, authorization, and business logic flaws. Perform UI/Web application penetration testing for vulnerabilities such as XSS, CSRF, SQL Injection, and session management issues. Identify and document security issues with clear reproduction steps, evidence, and remediation ...

BDO Digital Offensive Senior Security Analyst

Hiring Organisation
BDO UK
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
wide range of engagements, thanks to the trust and scale of our clients. You will get hands-on experience with web application and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more. No two projects … enhancing our delivery and providing additional services to organisations we work with. We are seeking a highly skilled and experienced Senior Offensive Security penetration tester to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. ...

Cyber Security Consultant (Cyber Essentials Plus)

Hiring Organisation
Goaco
Location
City of London, London, United Kingdom
actionable advice to help organisations strengthen their defences and demonstrate compliance. This is an ideal opportunity for a security professional with a background in penetration testing or technical assurance who wants to move into a client-facing cyber assurance and audit role. Key Responsibilities Conduct Cyber Essentials readiness … full Cyber Essentials Plus engagements. Guide clients through the certification process, helping them identify and close any compliance gaps. Perform technical verification and light penetration testing to validate controls during assessments. Produce clear, concise, and actionable audit reports. Collaborate with the client’s wider Cyber team to enhance ...

BDO Digital Offensive Security Manager

Hiring Organisation
BDO UK
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
wide range of engagements, thanks to the trust and scale of our clients. You will get hands-on experience with web application and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more. No two projects … broaden your horizons We are looking for a skilled Manager to join our Offensive Security team. In this role, you will oversee sophisticated penetration testing and red team engagements and help drive the development of the offensive security practice. Requirements Strict Requirement: Strong certification in penetration testing ...

IT Security Auditor

Hiring Organisation
Robert Half
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£500 - £700 per day
public cloud environments. Evaluate technical security controls (such as firewalls, IDS/IPS, security baselines, access controls) by directly interrogating systems, reviewing configurations, and testing controls. (Co-)Conduct vulnerability scans, penetration testing, and protocol analysis using approved tools to validate the efficacy of implemented security measures. Collaborate … real time, and supporting project delivery in a dynamic environment. Experience: Minimum 6 years' concrete, hands-on experience in technical IT audit, cyber security testing, penetration testing, or system security analysis. Strong background in technical audit execution within large, complex cloud and network environments. Experience directly configuring ...

Penetration Testing Team Leader - Growing Cybersecurity Firm

Hiring Organisation
Recruitment Revolution
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 Annual
Ready to take the next step in your penetration testing career and lead a high-performing team at a respected, fast-growing cybersecurity consultancy? This is your opportunity to join a CREST-certified organisation committed to excellence, innovation and integrity. As our new Penetration Testing Team … Leader , you'll play a pivotal role in shaping cutting-edge testing services, developing talented t click apply for full job details ...

Offensive Security Lead (Red Team)

Hiring Organisation
Bonhill Partners
Location
City of London, London, United Kingdom
maintaining the structure of the red team operations, including the training and mentoring of team members, and the development and execution of comprehensive penetration testing plans. Key Skills Must be experienced across information technology and information security, with recent experience in offensive security, red teaming, advanced penetration testing, or closely related disciplines Proven track record of leading Red Team engagements, adversary simulations, or advanced penetration testing activities in complex enterprise environments Deep familiarity with command-and-control frameworks (e.g. Cobalt Strike, Mythic, Sliver), or functionally equivalent tooling, including evasion techniques and post-exploitation ...

Lead Cybersecurity Incident Responder - GIAC, IR, Cyber

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Permanent
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. ...

Cyber Security Architect

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
profile solutions within traditional and ground-breaking enterprise IT, as well as custom operational technology systems. You'll work closely with Information Assurance and penetration testing teams to validate the effectiveness of security controls and define new security solutions in an agile, innovative, and team-centric manner. … across traditional and ground-breaking enterprise IT and operational technology systems Integrate and collaborate with technical and solutions architects Work with Information Assurance and penetration testing teams to validate security controls Apply threat modeling techniques to identify security threats and define security requirements Manage security requirements through ...

BDO Digital Offensive Security Consultant

Hiring Organisation
BDO UK
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
work with. We are seeking a highly skilled and experienced offensive security analyst to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. The successful candidate will be instrumental in identifying vulnerabilities, enhancing client security postures … leading initiatives to develop cutting-edge penetration testing methodologies and tools. Clients across industries and geographies, staying at the forefront of knowledge of the threat landscape, cyber defence best practices and regulatory expectations. Requirements: Experience with pen testing and vulnerability management is an advantage Knowledge ...

Security Engineer

Hiring Organisation
Granola
Location
City of London, London, United Kingdom
robust security culture as we unlock Granola for the next 100x users. In this role, you will: Conduct security assessments, code reviews, and penetration testing to identify vulnerabilities in our applications Design and implement security tools, frameworks, and methodologies to protect against security threats Work closely with development ...

Information Technology Compliance Manager

Hiring Organisation
itecopeople
Location
City of London, London, United Kingdom
KPIs Provide visibility of risks, readiness and improvement areas Nice to Have (Not Essential) Exposure to Azure cost monitoring/FinOps Coordination of penetration testing Security awareness training Business continuity and disaster recovery documentation What We’re Looking For 3–5 years’ experience in a hands ...

Gemologists and MSP Project Engineers.

Hiring Organisation
Mongoose Gray
Location
City of London, London, United Kingdom
scoping and planning skills. The MSP Project Engineer will host security consultations and conduct vulnerability assessments. The MSP Project Engineer will oversee and direct Penetration Testing exercises. The MSP Project Engineer will be familiar with Cyber Essentials, Microsoft Copilot and PCI-DSS. The MSP Project Engineer will ...

Senior Infrastructure Engineer

Hiring Organisation
Harvey Nash
Location
City of London, London, United Kingdom
Horizon, and Aria environments Oversee backup, recovery, and storage platforms (Veeam, ExaGrid, enterprise storage) Play an active role in security, including email security (Mimecast), penetration testing, DR, and business continuity Implement best practices for infrastructure operations, patching, monitoring, and lifecycle management Deliver white-glove user support and maintain ...

Senior Cyber Operations Analyst

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
traditional and cutting-edge enterprise IT as well as custom operational technology (OT) systems . Validate and Define: Collaborate closely with Information Assurance and penetration testing teams to validate the effectiveness of security controls or define new security solutions in an agile, innovative, and team-centric manner. Experience ...

Java Specialist

Hiring Organisation
Pyramid Consulting, Inc
Location
City of London, London, United Kingdom
development lifecycle in a fast-paced environment. Deliver enhancements, bug fixes, and feature implementations. Design and articulate solutions using UML. Fix issues identified during penetration testing. Contribute to continuous improvement and best engineering practices. Required Skills & Experience 15+ years of overall IT experience, with 10–12+ years in Java ...

Cybersecurity Sales Specialist

Hiring Organisation
Ernest Gordon Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Cybersecurity Sales Specialist Wakefield/Remote - 1 day a month in office £70,000-£80,000 (OTE £160,000+) + Uncapped Commission + Remote + Company Benefits Are you a Cybersecurity Sales Specialist experienced within ...