matter expertise in web, mobile or network penetration testing with track record of end to end testing of complex systems. Advanced knowledge of various web technologies, operating systems, particularly Linux, Windows, and Active Directory. Knowledge of Scripting Languages e.g. Python, Shell Scripting etc. Strong expertise with web application and network pen testing methodologies. Proficiency in using penetration testing tools … such as BurpSuite Pro, Nmap, Nessus, and Metasploit. Experienced in using KaliLinux and the associated penetration testing tool suite. Advanced completion of penetration testing simulations like Hack the Box or Capture the Flag or ideally one of the following certifications: CSTL/CCT, OSCP, OCWE, or relevant equivalent. Excellent communication and technical report writing skills. UK SC More ❯
London, England, United Kingdom Hybrid / WFH Options
Remarkable Jobs
methodologies What They Are Looking For: Essential: 3–5 years of hands–on penetration testing experience Strong understanding of OWASP and vulnerability testing standards Proficiency with tools such as Kali, Burp Suite, Nmap, Nessus, Metasploit Knowledge of cloud platform testing (AWS, Azure, GCP) Strong reporting and client communication skills Relevant qualifications such as CREST CRT, OSCP, OSCE, or CCT More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Ocho
What You'll Be Doing: Perform penetration tests on networks, applications, and infrastructure. Identify and exploit vulnerabilities to strengthen security defences. Use tools like Burp Suite, Nessus, Metasploit, and Kali Linux. Provide detailed reports with clear, actionable recommendations. Experience required: Strong knowledge of OWASP, CVE, and security frameworks. Hands-on experience with ethical hacking & exploit techniques. Ability to communicate … findings to technical and non-technical teams. Proficiency in using penetration testing tools such as BurpSuite Pro, Nmap, Nessus, and Metaspolit. Experienced in using KaliLinux and the associated penetration testing tool suite Nice to Have: Relevant security certifications (e.g. OSCP, CREST, Cyber Scheme.) UK SC clearance Package: Bonus Hybrid working (2 days onsite - Belfast office) 25 + More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Vector Recruitment Ltd
infrastructure security. Up-to-date on the latest cybersecurity threats and technologies. Strong knowledge in pen testing tools ( Metasploit, Nmap, Wireshark, Burp Suite, Nessus, OWASP ZAP, Eyewitness, Nessus, sqlmap, kalilinux, etc) Ideally certified – eg OSCP, CRTP, CPPT, CEH, CISSP, OSWP, eJPT, eWPT Good reporting and security debriefing skills A passion for cybersecurity and a safer world. If More ❯
infrastructure security. Up-to-date on the latest cybersecurity threats and technologies. Strong knowledge in pen testing tools ( Metasploit, Nmap, Wireshark, Burp Suite, Nessus, OWASP ZAP, Eyewitness, Nessus, sqlmap, kalilinux, etc) Ideally certified – eg OSCP, CRTP, CPPT, CEH, CISSP, OSWP, eJPT, eWPT Good reporting and security debriefing skills A passion for cybersecurity and a safer world. If More ❯
London, King's Cross, United Kingdom Hybrid / WFH Options
Vector Recruitment
infrastructure security. Up-to-date on the latest cybersecurity threats and technologies. Strong knowledge in pen testing tools ( Metasploit, Nmap, Wireshark, Burp Suite, Nessus, OWASP ZAP, Eyewitness, Nessus, sqlmap, kalilinux, etc) Ideally certified – eg OSCP, CRTP, CPPT, CEH, CISSP, OSWP, eJPT, eWPT Good reporting and security debriefing skills A passion for cybersecurity and a safer world. If More ❯
King's Cross, Isle Of Arran, United Kingdom Hybrid / WFH Options
Vector Recruitment
infrastructure security. Up-to-date on the latest cybersecurity threats and technologies. Strong knowledge in pen testing tools ( Metasploit, Nmap, Wireshark, Burp Suite, Nessus, OWASP ZAP, Eyewitness, Nessus, sqlmap, kalilinux, etc) Ideally certified eg OSCP, CRTP, CPPT, CEH, CISSP, OSWP, eJPT, eWPT Good reporting and security debriefing skills A passion for cybersecurity and a safer world. If More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Ocho
What You'll Be Doing: Perform penetration tests on networks, applications, and infrastructure. Identify and exploit vulnerabilities to strengthen security defences. Use tools like Burp Suite, Nessus, Metasploit, and Kali Linux. Provide detailed reports with clear, actionable recommendations. Experience required: Strong knowledge of OWASP, CVE, and security frameworks. Hands-on experience with ethical hacking & exploit techniques. Scripting & automation skills … a plus. Ability to communicate findings to technical and non-technical teams. Proficiency in using penetration testing tools such as BurpSuite Pro, Nmap, Nessus, and Metaspolit. Experienced in using KaliLinux and the associated penetration testing tool suite Nice to Have: Relevant security certifications (e.g. OSCP, CREST, Cyber Scheme.) UK SC clearance Package: £50k-£80k salary D.O.E Bonus More ❯
tests (web, infrastructure, external/internal). Strong knowledge of security testing methodologies and frameworks (e.g., OWASP, NIST). Proficiency with industry-standard tools (e.g., Burp Suite, Nmap, Metasploit, KaliLinux). Excellent written and verbal communication skills. OSCP, OSWE, or other relevant certifications. Experience with red teaming or threat simulation exercises. Familiarity with secure coding practices and More ❯
London, England, United Kingdom Hybrid / WFH Options
RSM UK
Experience of offensive security and penetration testing Demonstrable experience in infrastructure and web application testing, experience in API testing is desirable. Demonstrable experience using common pen testing tools including KaliLinux, Burpsuite, Nessus and other industry standard tools. Hold or working towards an industry recognised certification including CompTIA PenTest+; CHECK, CREST; Offensive Security Certified Professional (OSCP) etc. Relevant More ❯
years' penetration testing experience. Strong understanding of OWASP, SSL/TLS, SSH, and HTTP. Comfortable conducting black box, grey box, and white box testing. Familiar with tools like Kali, Burp Suite, Metasploit, Nmap, Nessus, and Qualys. Knowledge of AWS, Azure, or Google Cloud platform security. At least 2 certifications from: CREST CRT, OSCP, OSCE, or CCT. Desirable Extras: Experience More ❯
City of London, London, Grange, United Kingdom Hybrid / WFH Options
Applause IT Recruitment Ltd
years' penetration testing experience. Strong understanding of OWASP, SSL/TLS, SSH, and HTTP. Comfortable conducting black box, grey box, and white box testing. Familiar with tools like Kali, Burp Suite, Metasploit, Nmap, Nessus, and Qualys. Knowledge of AWS, Azure, or Google Cloud platform security. At least 2 certifications from: CREST CRT, OSCP, OSCE, or CCT. Desirable Extras: Experience More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
papers and articles. Skills/Must have: Strong knowledge of OWASP methodologies and offensive testing across black/grey/white-box approaches. Proficiency in tools like Burp Suite, Kali, Nmap, Nessus, Qualys, Metasploit. Familiarity with cloud platform security testing (AWS, Azure, GCP). Understanding of mobile security (Android & iOS), networking protocols, and the OSI model. Excellent verbal and More ❯
City Of London, England, United Kingdom Hybrid / WFH Options
Hamilton Barnes 🌳
papers and articles. Skills/Must have: Strong knowledge of OWASP methodologies and offensive testing across black/grey/white-box approaches. Proficiency in tools like Burp Suite, Kali, Nmap, Nessus, Qualys, Metasploit. Familiarity with cloud platform security testing (AWS, Azure, GCP). Understanding of mobile security (Android & iOS), networking protocols, and the OSI model. Excellent verbal and More ❯
Fort Belvoir, Virginia, United States Hybrid / WFH Options
Gridiron IT Solutions
techniques TS/SCI clearance HS diploma or GED and 7+ years of experience in Information Technology, or Bachelor's degree and 3+ years of experience in Information Technology Linux Computing Environment (CE) Certification Windows CE Certification Offensive Security Certified Professional (OSCP) or GIAC Penetration Tester (GPEN) Certification DoD Approved 8570 Information Assurance Technician (IAT) Level III Certification, including … CASP+ CE, CCNP Security, CISA, CISSP, GCED, GCIH, or CCSP Certification Additional Qualifications Experience with Cobalt Strike, Metasploit, and KaliLinux Python Certification Completion of the Red Team Apprentice, Offensive Methodology Analysis, or Red Team Operations Training Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified More ❯
CWE, CVSS scoring etc.) Strong experience communicating to stakeholders of varying technical skill levels Your experience should include: Using offensive security tooling, including tools such as Burp Suite, Kali, Metasploit and such Scripting including the use of python, Powershell, bash or Javascript Securing networks, hosts, web applications and cloud native deployments Working with toolsets such as: vulnerability management, firewalls More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Marlin Selection Recruitment
DDoS Menlo Web Security Gateway Menlo CASB Cisco Secure Access Cisco Umbrella Cisco ASA KnowBe4 Digicert Certificates and Microsoft Certificate Services Ivanti or Automox patching AppCheck or Tenable WAS KaliLinux (NMAP, Metasploit, BurpSuite, John etc) Desired Education: CISM, MS SC100, 200 and 900, OSCP or other penetration testing qualifications. Industry: Financial services, SOC, Pentesting is desirable Personal More ❯
DDoS Menlo Web Security Gateway Menlo CASB Cisco Secure Access Cisco Umbrella Cisco ASA KnowBe4 Digicert Certificates and Microsoft Certificate Services Ivanti or Automox patching AppCheck or Tenable WAS KaliLinux (NMAP, Metasploit, BurpSuite, John etc) Desired Education: CISM, MS SC100, 200 and 900, OSCP or other penetration testing qualifications. Industry: Financial services, SOC, Pentesting is desirable Personal More ❯
London, England, United Kingdom Hybrid / WFH Options
RSM
Experience of offensive security and penetration testing Demonstrable experience in infrastructure and web application testing, experience in API testing is desirable. Demonstrable experience using common pen testing tools including KaliLinux, Burpsuite, Nessus and other industry standard tools. Hold or working towards an industry recognised certification including CompTIA PenTest+; CHECK, CREST; Offensive Security Certified Professional (OSCP) etc. Relevant More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Cyber Guarded Ltd
employment in penetration testing Cyber Scheme, CREST or CHECK Certifications are required CTL must hold UK CSC Professional Title at Principal level or above Strong knowledge of networks, OS (Linux/Windows), web tech Proficient with Burp, Metasploit, Nessus, KaliLinux Eligible for full UK security clearance (no sponsorship offered) What we offer: Hybrid & flexible working More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Cyber Guarded Ltd
employment in penetration testing Cyber Scheme, CREST or CHECK Certifications are required CTL must hold UK CSC Professional Title at Principal level or above Strong knowledge of networks, OS (Linux/Windows), web tech Proficient with Burp, Metasploit, Nessus, KaliLinux Eligible for full UK security clearance (no sponsorship offered) What we offer: 🔹 Hybrid & flexible working More ❯
penetration testing CHECK Team Lead or CHECK Team Member status (or equivalent) CTL must hold UK CSC Professional Title at Principal level or above Strong knowledge of networks, OS (Linux/Windows), web tech Proficient with Burp, Metasploit, Nessus, KaliLinux Eligible for full UK security clearance (no sponsorship offered) What we offer: Hybrid & flexible working More ❯
intrusion detection/prevention systems, endpoint monitoring) Scripting experience using languages like Python, PowerShell, or Bash Familiarity with open-source diagnostic and assessment tools such as Nmap, Wireshark, and KaliLinux Solid understanding of established security frameworks and models (e.g., MITRE ATT&CK, NIST, and related methodologies) Comfortable using general productivity and communication software for remote collaboration Bachelor More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Langley James Limited
InTune, and Entra ID/Azure AD/Group Policy. Desired Experience: Familiarity with Imperva WAF/DDoS, Menlo, Cisco security, KnowBe4, Digicert, patching tools, web application scanners, and Kali Linux. Candidate Profile: Relevant security certifications (CISM, MS Security, OSCP preferred). Financial services/SOC/pentesting background desirable. Strong communication and problem-solving skills. Location & Hours: London More ❯
City of London, London, Walbrook, United Kingdom Hybrid / WFH Options
Langley James IT Recruitment
InTune, and Entra ID/Azure AD/Group Policy. Desired Experience: Familiarity with Imperva WAF/DDoS, Menlo, Cisco security, KnowBe4, Digicert, patching tools, web application scanners, and Kali Linux. Candidate Profile: Relevant security certifications (CISM, MS Security, OSCP preferred). Financial services/SOC/pentesting background desirable. Strong communication and problem-solving skills. Location & Hours: London More ❯