1 to 25 of 48 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 ...

Pen Tester

Hiring Organisation
Stackstudio Digital Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
From £400 to £410 per day
Title: Pen Tester Work Location: Reading (3days) The Role We're looking for a Security Consultant/Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering … physical penetration testing. You shall also perform in-depth analysis of penetration testing results and create a report that describes findings, exploitation procedures, risks and recommendations. Please include a brief outline of the impact this role will have, including overview of customer industry and projects, access ...

Penetration Tester

Hiring Organisation
Ultima
Location
Maidstone, Kent, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Penetration Tester

Hiring Organisation
Ultima
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Penetration Tester

Hiring Organisation
Ultima
Location
Guildford, Surrey, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Penetration Tester

Hiring Organisation
Ultima
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Penetration Tester

Hiring Organisation
Ultima
Location
Milton Keynes, Buckinghamshire, UK
Employment Type
Full-time
Penetration Tester Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Ultima's Security Testing Practice as a Penetration Tester and play a key role in protecting our clients' critical systems. Working alongside experienced consultants, you'll deliver high … quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment. What you'll be doing Sharpen Your Skills, Strengthen Our Security Maintain your penetration testing qualifications and continue developing your technical expertise in line with business and client ...

Law & Legal Experienced PEN Tester

Hiring Organisation
Eames Consulting
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£750 - £800 per day
Penetration Tester - Legal Sector (OT/Live Systems) £750 Per Day Inside IR35 Location: Canary Wharf | 5 days on-site We're looking for an experienced Penetration Tester with proven law/legal sector experience to operate in a high-risk, high-sensitivity environment. This role is fully … site and involves OT penetration testing on live production systems . You will: Perform penetration testing across IT and OT environments , including live legal systems Safely test operational technology and production platforms without business disruption Assess risk in line with legal, regulatory and client confidentiality requirements ...

Senior Security Consultant (AI/ML Penetration Tester)

Hiring Organisation
NetSPI
Location
Southampton, UK
Employment Type
Full-time
This is a remote position, and candidates must be located in Ontario, CA NetSPI pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack … surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since 2001. NetSPI ...

Senior Security Consultant (AI/ML Penetration Tester)

Hiring Organisation
NetSPI
Location
Guildford, Surrey, UK
Employment Type
Full-time
This is a remote position, and candidates must be located in Ontario, CA NetSPI pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack … surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since 2001. NetSPI ...

Senior Security Consultant (AI/ML Penetration Tester)

Hiring Organisation
NetSPI
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
This is a remote position, and candidates must be located in Ontario, CA NetSPI pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack … surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since 2001. NetSPI ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
Slough, Berkshire, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
Guildford, Surrey, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

Senior Penetration Tester

Hiring Organisation
National Gas
Location
Crawley, West Sussex, UK
Employment Type
Full-time
strengthen the resilience and security of gas transmission nationwide. Join us, and help be the energy behind the change. Key accountabilities: Scope and perform penetration testing and vulnerability research of complex proprietary software and hardware. Identify and assess vulnerabilities in systems and applications. Keep cybersecurity training and knowledge … current by monitoring the latest security threats and vulnerabilities. Write clear and concise penetration testing reports detailing findings and recommendations Provide recommendations for remediation of identified vulnerabilities. Collaborate with IT and development teams to facilitate the implementation of security measures and remediation of identified vulnerabilities. Ensure that penetration ...

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 ...

Head of Security Testing and Vulnerability Management

Hiring Organisation
Kantar
Location
Slough, Berkshire, UK
Employment Type
Full-time
leading data, insights, and consulting company; we shape the brands of tomorrow by better understanding people everywhere. About The Job The Head of Security Testing and Vulnerability Management will lead the enterprise-wide strategy and execution for security testing, vulnerability assessment, and remediation programs. This role ensures … posture by proactively identifying, assessing, and mitigating vulnerabilities across infrastructure, applications, and cloud environments. Job Goals Strategic Leadership: Define and implement a global security testing and vulnerability management strategy aligned with enterprise risk objectives. Establish governance frameworks, KPIs, and reporting mechanisms for security testing and vulnerability management. Operational ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Dartford, Kent, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Senior Application Security Specialist

Hiring Organisation
hackajob
Location
Woking, Surrey, UK
Employment Type
Full-time
customers worldwide. Job Description As a Senior Application Security Specialist, you will focus on securing our applications through development lifecycle controls and penetration testing to assess the effectiveness of security measures. The Information Security department is responsible for the security and risk management of closed source, open source … This role is eligible for inclusion in the Company's hybrid working from home policy. Qualifications Exceptional understanding and practical experience with manual security testing to find vulnerabilities and logical issues, in either web applications or infrastructure. Strong understanding of and demonstrable experience with automated, dynamic, and static application ...

Lead Cybersecurity Incident Responder - GIAC, IR, Cyber

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
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. ...

Head of Operations & IT

Hiring Organisation
cer Financial Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£110,000 - £120,000 per annum
change, systems upgrades, incident response, and technology risk management. Govern system access controls, IT policies, and disaster recovery processes. Oversee cybersecurity strategy, controls, testing (including penetration testing), and ongoing monitoring. Ensure compliance with FCA/PRA cyber requirements, NCSC guidance, and GDPR. Manage vulnerability scanning, patch management …/KYC processes, and business continuity. Ensure the bank meets UK operational resilience framework requirements, including impact tolerances, important business services, and mapping/testing obligations. Own and maintain business continuity and disaster recovery plans. Serving/attending on various committees including Operational Risk & Conduct Committee. Ensure risk ...

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 ...

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 ...