1 to 25 of 46 Penetration Testing Jobs in the South East

Penetration Testing Team Leader - Growing Cybersecurity Firm

Hiring Organisation
RecruitmentRevolution.com
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£95,000 per annum
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 testers, and helping protect clients across government, telecoms, finance, digital currencies and other critical sectors. With structured development, meaningful progression opportunities, and the chance to make a visible impact from day one, this ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Woking, Surrey, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Slough, Berkshire, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Maidstone, Kent, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Newport, Isle of Wight, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Offensive Security Tester

Hiring Organisation
NTT DATA
Location
Brighton, East Sussex, UK
Employment Type
Full-time
global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance to enhance client security postures. The ideal candidate will have … considered for the position, candidates must be eligible for Security Check (SC) clearance. What you'll be doing: Key Responsibilities: Conduct comprehensive penetration tests across web applications, network infrastructure, and mobile applications. Perform external and internal network penetration testing using industry-standard methodologies. Execute wireless security assessments ...

Penetration Tester

Hiring Organisation
NSD
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£420 - £470 per day
Penetration Tester CTM Level - Wokingham, UK Key Points Up to £470 per day, 7-month contract Hybrid model, 3 days onsite and 2 remote Seeking a Penetration Tester at CTM level with strong consultancy skills Active SC Clearance required About the Client Our client is a respected organisation … range of technical services that help strengthen critical digital operations. With growing demand across their security programmes, they are now searching for an experienced Penetration Tester to join their established team. The Benefits Exposure to varied testing engagements Collaborative and supportive technical environment Opportunity to deliver high impact ...

IT Security Auditor

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
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 Tester (OSCP)

Hiring Organisation
4Square Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £60,000 per annum
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 ...

Senior Security Engineer

Hiring Organisation
Funding Circle UK
Location
Slough, Berkshire, UK
Employment Type
Full-time
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 ...

Security Engineer

Hiring Organisation
Movement8
Location
South East, United Kingdom
Employment Type
Permanent
Security Engineer GCP, Cloud Security, Pen Testing- Hybrid (London) You will be joining a company that build software solutions fast to solve real problems within the workplace. The team builds tools that help engineering and product teams respond to incidents, reduce downtime, and continuously improve. Were looking … into designs Detect security weaknesses across API's, Applications and Infrastructure Driving secure development practices across the business Requirements: White-box and Black-box testing Penetration Testing Cloud Security in GCP Secure Software Development (Go, Typescript) Ability to conduct in-depth Security Research If you're interested ...

Penetration Tester - SC CLEARED - Wokingham, Berkshire and remote - 5 months+ - START: JAN/FEB

Hiring Organisation
Octopus Computer Associates
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Penetration Tester - SC CLEARED - Wokingham, Berkshire and remote - 5 months+ - START: JANUARY/FEBRUARY (Tester, Test, Testing, Test Analyst, Test Engineer, Test Specialist, AWS, Azure, Cloud, Crest, CyberScheme) One of our Blue Chip Clients is urgently looking for an SC Cleared Penetration Tester. Please find some details … below: CONTRACTOR MUST HOLD ACTIVE SC CLEARANCE MUST BE PAYE THROUGH UMBRELLA Role Description: A penetration tester plays a vital role within the UK's cybersecurity industry, particularly when assisting organisations with managing and mitigating security risks. The core responsibilities of a penetration tester are to identify vulnerabilities ...

Security Operations Manager

Hiring Organisation
Urbanberry Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
analyse alerts from SIEM, EDR, firewalls, and other security platforms Lead and coordinate incident response activities Manage security projects including DPIAs, supplier assurance, penetration testing, and remediation Support evaluation and implementation of emerging technology, including AI security tools Conduct threat hunting and support vulnerability scanning and patch management ...

Security Operations Manager For Travel Company

Hiring Organisation
Urbanberry Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
analyse alerts from SIEM, EDR, firewalls, and other security platforms Lead and coordinate incident response activities Manage security projects including DPIAs, supplier assurance, penetration testing, and remediation Support evaluation and implementation of emerging technology, including AI security tools Conduct threat hunting and support vulnerability scanning and patch management ...

Lead Security Engineer

Hiring Organisation
The Fortune Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
Malware/Ransomware etc for Product/Platform DDos Protection Access Management/Review (IAM) Threat modelling Setup Bug Bounty program Application Security/Testing Brand monitoring (domans etc) Whitelist client access Encryption in Transit (confirm 100%) Social Engineering testing Spear Phishing Secure Code Training Pre-Release code … analysis IDS/IPS Application/Infrastructure Hardening Advanced Penetration testing Essential experience At least one industry certificate such as CISSP, OSCP, CEH. Kubernetes experience knowledge Understanding of security practices for cloud platforms such as GCP and AWS Certification such as Professional Cloud Security Engineer from ...

Information Security Officer

Hiring Organisation
Altitude-Recruitment Limited
Location
Milton Keynes, Buckinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
environments across Azure and AWS infrastructure Coordinate security incident response and vulnerability remediation Oversee security monitoring, alerting, and detection capabilities Manage vulnerability assessment and penetration testing programs Maintain identity and access management controls Compliance & Assurance (30%) Maintain ISO27001 certification and manage audit cycles Ensure PCI/DSS compliance ...

Information Security Officer

Hiring Organisation
Altitude-Recruitment Limited
Location
Bletchley, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 60,000 Annual
environments across Azure and AWS infrastructure Coordinate security incident response and vulnerability remediation Oversee security monitoring, alerting, and detection capabilities Manage vulnerability assessment and penetration testing programs Maintain identity and access management controls Compliance & Assurance (30%) Maintain ISO27001 certification and manage audit cycles Ensure PCI/DSS compliance ...

IT Security Operations Manager

Hiring Organisation
Arc IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
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/ ...

Security Architect

Hiring Organisation
SoftServe
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
protection of data and systems Implement proactive security monitoring, incident response, and resilience strategies, protecting infrastructure from potential threats and attacks Conduct security assessments, penetration testing, and continuous compliance validation across cloud and hybrid environments Support security reviews and presentations with government bodies and independent security assessors ...

Security Architect

Hiring Organisation
SoftServe
Location
Dartford, Kent, UK
Employment Type
Full-time
protection of data and systems Implement proactive security monitoring, incident response, and resilience strategies, protecting infrastructure from potential threats and attacks Conduct security assessments, penetration testing, and continuous compliance validation across cloud and hybrid environments Support security reviews and presentations with government bodies and independent security assessors ...

Security Architect

Hiring Organisation
SoftServe
Location
Reading, Berkshire, UK
Employment Type
Full-time
protection of data and systems Implement proactive security monitoring, incident response, and resilience strategies, protecting infrastructure from potential threats and attacks Conduct security assessments, penetration testing, and continuous compliance validation across cloud and hybrid environments Support security reviews and presentations with government bodies and independent security assessors ...