Harrington Starr have partnered with a global multi billion pound business in Belfast as they seek a Vulnerability and Penetration Testing Engineer to join their Belfast Centre team in providing security architecture, vulnerability and risk assessment. We are open to More ❯
Central London, London, United Kingdom Hybrid / WFH Options
Marlin Selection
/ASA KnowBe4 Menlo Security Ivanti, Automox, AppCheck Certificate management tools (e.g., Digicert) Kali Linux toolset Qualifications & Skills: Relevant certifications such as CISM, SC-100/200/900, OSCP or equivalent. Strong interpersonal and communication skills. Ability to lead, prioritise, and deliver across multiple concurrent tasks. Previous experience in financial services, penetration testing, or a SOC environment is a More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Goodman Masson
Strong knowledge of Microsoft Defender, EDR, and network architecture Understanding of security frameworks (e.g., MITRE ATT&CK, NIST, ISO 27001) Excellent communication and teamwork skills Relevant certifications (e.g., Sec+, OSCP, CISA) are a plus More ❯
London, England, United Kingdom Hybrid / WFH Options
Marlin Selection
WAF and DDoS Menlo Web Security Gateway KnowBe4 Digicert Certificates and Microsoft Certificate Services Ivanti or Automox patching AppCheck or Tenable WAS Desired Education: CISM, MS SC100, 200, 900, OSCP, or other penetration testing qualifications Industry: Financial services, SOC, pentesting is desirable Personal Skills: Excellent interpersonal, written, and verbal communication skills; ability to handle multiple priorities and projects; clear and More ❯
WAF and DDoS Menlo Web Security Gateway KnowBe4 Digicert Certificates and Microsoft Certificate Services Ivanti or Automox patching AppCheck or Tenable WAS Desired Education: CISM, MS SC100, 200, 900, OSCP or other penetration testing qualifications. Industry: Financial services, SOC, Pentesting is desirable Personal Skills: Excellent interpersonal, written, and verbal communication skills Ability to handle multiple priorities, tasks, and projects simultaneously More ❯
to enhance their security and build trust. Skills/Must have: 3 years experience in penetration testing, ethical hacking, and security assessments. Industry-recognised certifications (e.g., CSTM, CRT, CTL, OSCP). Proficient in advanced tools and techniques for penetration testing. Strong leadership skills with a passion for mentoring junior team members. Excellent communication and presentation skills. In-depth knowledge of More ❯
or automation Experience or awareness of Operational Technology (OT) environments Familiarity with internal exploitation tools and techniques Certifications like CREST CTM/CTL/CSTM, Cyber Scheme Practitioner, or OSCP (lapsed certs accepted if skills are current) 🧠 What to expect: A small, high-trust team (2–3 testers) operating with autonomy and technical depth Hybrid work model (typically remote More ❯
London, England, United Kingdom Hybrid / WFH Options
Women in Data®
similar roles which your background might be better suited to. Hold CTM/CSTM or CTL/CSTL status and/or other industry recognised certifications such as the OSCP or CREST/CyberScheme qualifications Have developed their SME knowledge in one or more fields of penetration testing, such as mobile application testing, Cloud, Operational Technology, or a specific industry More ❯
London, England, United Kingdom Hybrid / WFH Options
Hack The Box
years' industry experience in offensivesecurity roles A technical academic background in software engineering or cyber security One or more of the following industry qualifications: OffensiveSecurityCertifiedProfessional (OSCP) OffensiveSecurity Web Expert (OSWE) OffensiveSecurity Evasion Techniques & Breaching Defences (OSEP) CREST Registered Penetration Tester (CRT) CREST Certified Web Application Tester (CCT APP) CREST Certified Infrastructure Tester (CCT INF More ❯
Stafford, England, United Kingdom Hybrid / WFH Options
CYBER RANGES Corp
cyber resilience. Preferred Background: Baltic, Nordic, and European locations are preferred, but feel free to reach out if you think we are looking for you. Certifications including GCIH, GCIA, OSCP, GXPN, OSCE or similar are always welcomed. However... we are more interested in your experience and what you can bring. OT experience is a significant plus. Join us in shaping More ❯
team’s structure and culture as the business grows What We’re Looking For: 2+ years of experience as a Penetration Tester Strong skills in manual web application testing OSCP or equivalent certifications (e.g. CREST, CRT) Comfortable communicating directly with clients and founders Based in the UK What’s On Offer: Competitive salary Remote-first working model The opportunity to More ❯
London, England, United Kingdom Hybrid / WFH Options
Dataminr
security space - eg. EDR, AV, incident response, forensics, SIEM, firewall, HIPS/IDS, etc. Knowledge of malware, threat intelligence, and/or sandbox analysis. Certifications such as CISSP, CEH,OSCP, and SANS also a plus About Dataminr At Dataminr, we are a mission driven team of talented builders, creators and visionaries who have real-world impact on how organizations are More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Anson McCade
scripting or automation experience Understanding of Operational Technology (OT) networks Familiarity with internal infrastructure exploitation tools Certifications (preferred but not essential): CREST CTM, CTL, CSTM or Cyber Scheme Practitioner OSCP (current or lapsed) If you’re an experienced infrastructure penetration tester looking for meaningful work, we want to hear from you. More ❯
scripting or automation experience Understanding of Operational Technology (OT) networks Familiarity with internal infrastructure exploitation tools Certifications (preferred but not essential): CREST CTM, CTL, CSTM or Cyber Scheme Practitioner OSCP (current or lapsed) If you’re an experienced infrastructure penetration tester looking for meaningful work, we want to hear from you. More ❯
in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable. Got your attention? If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral More ❯
Cheltenham, England, United Kingdom Hybrid / WFH Options
Meritus
in operational environments. A background in technical QA – reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable. Got your attention? If you believe that you have the skills and experience for the role – then please get in touch. We also offer a referral More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
Meritus
in operational environments. A background in technical QA – reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable. Got your attention? If you believe that you have the skills and experience for the role – then please get in touch. We also offer a referral More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Meritus Talent
in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable. Got your attention? If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral More ❯
Cheltenham, Gloucestershire, South West, United Kingdom Hybrid / WFH Options
Yolk Recruitment
in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable. Got your attention? If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral More ❯
Salisbury, Wiltshire, South West, United Kingdom Hybrid / WFH Options
Anson Mccade
with tech debt Desirable skills & qualifications: • Python scripting or coding skills (advantageous) • Exposure to OT networks and internal infrastructure tooling • Relevant certifications - CREST (CTM, CTL, CSTM), Cyber Scheme Practitioner, OSCP Work Environment & Expectations: • Join a tight-knit, high-performing team • Hybrid model: ~2 days per week in client or office locations, majority remote • Primary base in London preferred , though other More ❯
swindon, wiltshire, south west england, united kingdom Hybrid / WFH Options
Anson Mccade
with tech debt Desirable skills & qualifications: • Python scripting or coding skills (advantageous) • Exposure to OT networks and internal infrastructure tooling • Relevant certifications - CREST (CTM, CTL, CSTM), Cyber Scheme Practitioner, OSCP Work Environment & Expectations: • Join a tight-knit, high-performing team • Hybrid model: ~2 days per week in client or office locations, majority remote • Primary base in London preferred , though other More ❯
scripting or automation experience Understanding of Operational Technology (OT) networks Familiarity with internal infrastructure exploitation tools Certifications (preferred but not essential): CREST CTM, CTL, CSTM or Cyber Scheme Practitioner OSCP (current or lapsed) If you're an experienced infrastructure penetration tester looking for meaningful work, we want to hear from you. Reference: AMC/SMM/IPT Postcode: EC1 #samc More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
or automation Experience or awareness of Operational Technology (OT) environments Familiarity with internal exploitation tools and techniques Certifications like CREST CTM/CTL/CSTM, Cyber Scheme Practitioner, or OSCP (lapsed certs accepted if skills are current) ? What to expect: A small, high-trust team (2–3 testers) operating with autonomy and technical depth Hybrid work model (typically remote More ❯
experience using Terraform or Ansible Familiarity with DevOps , Agile , and Scrum methodologies Hands-on experience with reverse proxies such as NGINX or Apache HTTPD Security certifications such as CISSP , OSCP , or similar Passionate about a specific technical area (cloud, containers, security, etc.) Soft Skills & Traits Collaborative team player with a proactive attitude Strong problem-solving and critical thinking capabilities Customer More ❯