1 to 25 of 28 CHECK Team Member Jobs in the UK

an active SC clearance. My client is on the hunt for a Cyber Security Engineer to join a central government client of theirs. You will be joining an AppSec team focused on building security automation into delivery pipelines and conducting security focused tests against digital services. Key Responsibilities Perform penetration testing and vulnerability assessments of web applications, APIs, and … Certifications: OSCP or CREST/TIGER Scheme. Strong communication skills and the ability to explain security issues to technical and non-technical stakeholders. Desirable Experience delivering assessments under the CHECK scheme (e.g., as a CHECK Team Member/Leader). Knowledge of UK public sector security and data protection standards (e.g., NCSC, Cyber Essentials Plus). More ❯

Summary: CCL Solutions Group is seeking an exceptional Senior Penetration Tester with CHECK Team Leader Infrastructure (CTL-INF) qualifications to join our elite team of security professionals. Location: Home based Main Job Summary This is more than just a job, we're looking for individuals with a hacker's mindset, deep technical expertise, and a relentless drive … to secure the UK's most critical assets. You will be leading engagements across secure environments, delivering high-impact assessments, mentoring team members, and shaping the offensive security direction of the business. In return, we offer a highly supportive environment with structured mentoring, paid training days, and access to advanced tooling. Main Duties & Responsibilities (other duties may be assigned … CCL Solutions Group are more than just a leading provider of cybersecurity services, we are a team committed to making a real difference in protecting communities, businesses, and the critical infrastructure of the UK. As a Senior Penetration Tester within CCL Solutions Group, your key responsibilities will be: Lead and deliver end-to-end penetration testing engagements across infrastructure More ❯

Penetration Tester Position Description CGI Cyber Security Team in the UK is one of the largest Cyber consultancies in the UK with around 300 members. The UK Cyber team works across a variety of domains including: Government, Defence, Critical Infrastructure, Healthcare, Utilities, Banking and Financial Services and Many more. At CGI you will get the opportunity to work … over 30 years. Experience of the assessment of bespoke applications, cloud technologies and mobile applications (on diverse mobile platforms) would be of an advantage. You would join our established team of penetration testers with the possibility of progressing to team leader or principal tester positions. You would be able to work flexibly, undertaking work … at home and at client sites across the UK. Required qualifications to be successful in this role - CHECK Team Leader (CTL) - CHECK Team Member (CTM) - CREST Certified Simulated Attack Specialist (CCSAS) - CREST Certified Tester (CCT). Sometimes known as CREST Certified Infrastructure Tester (CCT Inf) or CREST Certified Web Application Tester (CCT App) - Cyber Scheme More ❯

Senior Penetration Tester Position Description CGI Cyber Security Team in the UK is one of the largest Cyber consultancies in the UK with around 300 members. The UK Cyber team works across a variety of domains including: Government, Defence, Critical Infrastructure, Healthcare, Utilities, Banking and Financial Services and Many more. At CGI you will get the opportunity to … over 30 years. Experience of the assessment of bespoke applications, cloud technologies and mobile applications (on diverse mobile platforms) would be of an advantage. You would join our established team of penetration testers with the possibility of progressing to team leader or principal tester positions. You would be able to work flexibly, undertaking work at home and at … this role We would be interested to talk further if you hold any of the following qualifications: - CHECK Team Leader (CTL) - CHECK Team Member (CTM) - CREST Certified Simulated Attack Specialist (CCSAS) - CREST Certified Tester (CCT). Sometimes known as CREST Certified Infrastructure Tester (CCT Inf) or CREST Certified Web Application Tester (CCT App) - Cyber Scheme More ❯

if you also have: Python scripting skills for tooling 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 More ❯

if you also have: Python scripting skills for tooling 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 More ❯

with legacy systems and navigate environments 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 More ❯

meet this requirement will not be considered. Cyber Guarded Ltd is a long-established and independent cyber security firm based in Belfast. As the premier NCSC-approved supplier for CHECK Penetration Testing in Northern Ireland, including Cyber Incident Exercising being conducted at the highest levels, along with Cyber Advisor – Cyber Essentials, we support clients across both public and private … sectors. As we continue to grow significantly, securing contracts across Northern Ireland, we’re strengthening our technical team to meet demand. We’re looking for experienced Penetration Testers who are passionate about cyber security, thrive on technical challenges, and want to be part of a trusted and growing consultancy. What you’ll do: Conduct infrastructure, app, cloud & OT penetration … Work hands-on with clients from scoping through debrief Contribute to tooling, methodology and internal R&D What we’re looking for: 2+ years’ paid employment in 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 More ❯

its inception, the company has grown to employ elite technical experts who have contributed to some of the world's largest technology and digital security projects. The NCSC-approved CHECK company specializes in penetration testing and security assessment services under the government-accredited CHECK scheme. They are currently seeking for a skilled Penetration Tester to join the growing … to identify issues within customer infrastructure and web applications. Perform various types of security testing, including network penetration, web application, mobile security assessments, and social engineering. Participate in red team engagements, employing creative strategies to outsmart defenders. Explore various approaches to gain unauthorized access to customer networks during red team exercises. Perform security assessments in accordance with the … experience in penetration testing and/or security surveillance. Exhibits eagerness to absorb new knowledge and technologies. Programming Exposure A relevant Cyber Security certification is advantageous, e.g. (OSCP, CRT, CTM, CTL) Showcases stellar communication skills. Benefits: Paid Certifications Health Insurance Pension Paid Certifications Salary More ❯

re looking for an experienced Senior Penetration Tester who thrives on pushing boundaries, thinks like an attacker, and delivers like a pro. You’ll be joining a tight-knit team of passionate ethical hackers tackling high-impact, real-world cyber threats across both government and commercial landscapes. What You’ll Be Doing: Lead and deliver hands-on penetration tests … technical outputs Collaborate with clients and provide expert guidance Feed into proposals and help shape strategic direction Continuously grow your technical and consulting skills What You’ll Need: ✔ NCSC CHECK Team Member status ✔ Solid UK penetration testing experience (ideally across varied environments) ✔ Technical depth in networks, systems, and application testing ✔ Strong communication and reporting skills ✔ A hacker … and red-teaming including NCSC and CREST accredited schemes Why This Role? Tackle engagements you won’t find elsewhere — including national defence and critical infrastructure Join a collaborative, friendly team that supports your development Flexibility to work remotely or from offices in Leeds, London or Bristol Grow into leadership and shape how testing is delivered to top-tier clients More ❯

London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering critical assessments across complex and sensitive client environments. This is a hands-on internal testing role … environments Produce clear, concise reports tailored to both technical and non-technical audiences Build trusted relationships with clients in a consultancy-facing capacity Work within a small, high-trust team on sensitive engagements Contribute to the evolution of internal tooling and testing methodologies Operate effectively in environments with limited documentation or predefined processes Essential Experience and Skills At least … environments with technical debt Desirable Skills Python 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 ❯

London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering critical assessments across complex and sensitive client environments. This is a hands-on internal testing role … environments Produce clear, concise reports tailored to both technical and non-technical audiences Build trusted relationships with clients in a consultancy-facing capacity Work within a small, high-trust team on sensitive engagements Contribute to the evolution of internal tooling and testing methodologies Operate effectively in environments with limited documentation or predefined processes Essential Experience and Skills At least … environments with technical debt Desirable Skills Python 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 ❯

London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering critical assessments across complex and sensitive client environments. This is a hands-on internal testing role … environments Produce clear, concise reports tailored to both technical and non-technical audiences Build trusted relationships with clients in a consultancy-facing capacity Work within a small, high-trust team on sensitive engagements Contribute to the evolution of internal tooling and testing methodologies Operate effectively in environments with limited documentation or predefined processes Essential Experience and Skills At least … environments with technical debt Desirable Skills Python 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 ❯

A premier UK consultancy is seeking a skilled and passionate Penetration Tester to join its growing team of cybersecurity experts. This is a dynamic opportunity for individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure … stakeholders Work directly with clients as a trusted advisor – this is a consulting-facing role Operate in sensitive, high-risk environments where mistakes have real consequences Contribute to improving team tooling, processes, and client methodology Be comfortable working autonomously without extensive documentation or runbooks Key Qualifications and Skills: Candidates who meet the following criteria … are strongly encouraged to apply – and even if every box isn’t ticked, applications are welcome, as related opportunities may also be available: Possesses industry-recognised certifications such as CTM, CSTM, CTL, CSTL, OSCP, or CREST/Cyber Scheme qualifications. Brings specialist knowledge in one or more areas of penetration testing – this could include mobile app security, cloud environments, operational More ❯

A premier UK consultancy is seeking a skilled and passionate Penetration Tester to join its growing team of cybersecurity experts. This is a dynamic opportunity for individuals with strong technical skills and a proactive mindset, eager to make a tangible impact across a wide range of client environments. Working on mission critical projects across National Security, Critical National Infrastructure … stakeholders Work directly with clients as a trusted advisor – this is a consulting-facing role Operate in sensitive, high-risk environments where mistakes have real consequences Contribute to improving team tooling, processes, and client methodology Be comfortable working autonomously without extensive documentation or runbooks Key Qualifications and Skills: Candidates who meet the following criteria … are strongly encouraged to apply – and even if every box isn’t ticked, applications are welcome, as related opportunities may also be available: Possesses industry-recognised certifications such as CTM, CSTM, CTL, CSTL, OSCP, or CREST/Cyber Scheme qualifications. Brings specialist knowledge in one or more areas of penetration testing – this could include mobile app security, cloud environments, operational More ❯

model | High-trust culture | Mission-critical work 🧭 The Opportunity Join a high-impact consultancy at the forefront of innovation and digital transformation. You’ll be part of a specialist team delivering critical infrastructure penetration tests across some of the most sensitive environments in the UK — from defence and national security to critical infrastructure and operational technology. This is not … through clear written reports and debriefs to a range of stakeholders Support sensitive clients operating in production environments — where mistakes matter Contribute to tooling, methodologies, and continuous improvement of team capability Engage with a technical and non-technical audience, acting as a trusted security advisor 🧠 What You Bring Core Skills: 4+ years of penetration testing experience (infrastructure/internal … line environments Desirable: Python scripting or automation experience Familiarity with OT (Operational Technology) networks Experience with tools like CrackMapExec, BloodHound, PowerView, etc. Certifications (a bonus, not a barrier): CREST CTM, CTL, CSTM, Cyber Scheme Practitioner OSCP Lapsed certifications are fine if practical skills are strong 👥 Team & Work Environment Tight-knit, high-performing team (2–3 people) with deep More ❯

model | High-trust culture | Mission-critical work 🧭 The Opportunity Join a high-impact consultancy at the forefront of innovation and digital transformation. You’ll be part of a specialist team delivering critical infrastructure penetration tests across some of the most sensitive environments in the UK — from defence and national security to critical infrastructure and operational technology. This is not … through clear written reports and debriefs to a range of stakeholders Support sensitive clients operating in production environments — where mistakes matter Contribute to tooling, methodologies, and continuous improvement of team capability Engage with a technical and non-technical audience, acting as a trusted security advisor 🧠 What You Bring Core Skills: 4+ years of penetration testing experience (infrastructure/internal … line environments Desirable: Python scripting or automation experience Familiarity with OT (Operational Technology) networks Experience with tools like CrackMapExec, BloodHound, PowerView, etc. Certifications (a bonus, not a barrier): CREST CTM, CTL, CSTM, Cyber Scheme Practitioner OSCP Lapsed certifications are fine if practical skills are strong 👥 Team & Work Environment Tight-knit, high-performing team (2–3 people) with deep More ❯

stay hands-on, develop others, and build a rewarding career at the forefront of national security and commercial cyber defence. What You'll Be Doing: Lead and mentor a team of talented penetration testers Deliver critical assessments across sectors including government, defence, and telecoms Develop talent through coaching, upskilling, and cert guidance Work on high-profile projects that push … in modern pen test tools & techniques A clear and confident communication style A passion for helping others learn and stay ahead of threats Certifications like CCT-INF, CCT-APP, CTM If you're a pen test leader who loves training, developing others, and staying on the front lines of cybersecurity, we want to hear from you. Apply today or contact More ❯

stay hands-on, develop others, and build a rewarding career at the forefront of national security and commercial cyber defence. What You'll Be Doing: Lead and mentor a team of talented penetration testers Deliver critical assessments across sectors including government, defence, and telecoms Develop talent through coaching, upskilling, and cert guidance Work on high-profile projects that push … in modern pen test tools & techniques A clear and confident communication style A passion for helping others learn and stay ahead of threats Certifications like CCT-INF, CCT-APP, CTM If you're a pen test leader who loves training, developing others, and staying on the front lines of cybersecurity, we want to hear from you. Apply today or contact More ❯

figure it out, and adapt when things inevitably go sideways. Coding skills - Not essential, but if you can sling some Python around, it’ll help. Certs - OSCE, OSCE, CTL, CTM would be nice. But if you don’t have it and you know your stuff, that’s fine too. Consultancy experience - Again, preferred. If you’ve worked client-side before … you’ll get the vibe. Location: The team’s largely remote as it stands. Occasionally, you’ll need to rock up to a client site - so don’t apply if you plan on never leaving the house. Level: They’re open to solid testers up to Principal level. But don’t expect a slow ramp-up - they need someone More ❯

figure it out, and adapt when things inevitably go sideways. Coding skills - Not essential, but if you can sling some Python around, it’ll help. Certs - OSCE, OSCE, CTL, CTM would be nice. But if you don’t have it and you know your stuff, that’s fine too. Consultancy experience - Again, preferred. If you’ve worked client-side before … you’ll get the vibe. Location: The team’s largely remote as it stands. Occasionally, you’ll need to rock up to a client site - so don’t apply if you plan on never leaving the house. Level: They’re open to solid testers up to Principal level. But don’t expect a slow ramp-up - they need someone More ❯

ReRoot Cyber is seeking highly skilled and forward-thinking CHECK Team Members to join one of the UK’s most respected testing teams. This is an independent, privately owned testing consultancy led by industry-recognised names who are hackers at heart. This team is led by an active penetration tester who understands the niggles of day penetration … s not where they phish. If you thrive on bringing ideas to life, creating bespoke tools and adding true value to your clients, then this is the penetration testing team for you. This is a home based position with very very very limited travel & public sector work. Full right to work in the UK is required Ideally you will … Hold active CHECK Team Member Status Have experience with creating bespoke tools & scripts Possess strong Infrastructure/Networking Knowledge Have a desire to continually learn about the security of new technologies Hold a genuine enthusiasm for solving problems & thinking outside the box Despite being a CHECK penetration testing provider, the business is increasingly focused on commercial More ❯

All levels - Penetration Tester positions - on-site x3 days MUST have SC/Check scheme CSG Talent is currently partnering with one of the fastest growing tech firms in the UK at the forefont of a massive industry. They are looking for junior to red teamers to join their team. Responsibilities Deliver a variety of engagements for customers in … the UK and overseas including IT Health Checks under the government CHECK scheme … Carry out peer reviews of other consultants' output in addition to writing reports Maintain internal database of findings Identify opportunities for improving delivery process Requirements Current SC Security Clearance CTM/CSTM and CRT (preferred) or QTSM 2 years of industry experience Knowledge of industry standard tools (commercial & open source) Strong technical diagnostic skills Attention to detail and quality Excellent More ❯

All levels - Penetration Tester positions - on-site x3 days MUST have SC/Check scheme CSG Talent is currently partnering with one of the fastest growing tech firms in the UK at the forefont of a massive industry. They are looking for junior to red teamers to join their team. Responsibilities Deliver a variety of engagements for customers in … the UK and overseas including IT Health Checks under the government CHECK scheme … Carry out peer reviews of other consultants' output in addition to writing reports Maintain internal database of findings Identify opportunities for improving delivery process Requirements Current SC Security Clearance CTM/CSTM and CRT (preferred) or QTSM 2 years of industry experience Knowledge of industry standard tools (commercial & open source) Strong technical diagnostic skills Attention to detail and quality Excellent More ❯

Penetration Tester Fully Remote - UK Wide Up to £60,000 We are looking for a Mid-Level Penetration Tester/CHECK Team Member to join our client working on both private and government sector clients. This role offers fully remote working and candidates must be UK based. Working with a talented and collaborative team you will … eye for future promotion into CTL or similar. Due to the nature of the clients, current Security Clearance is desired or the ability to obtain this. Other required skills: CTM/CSTM Strong diagnostic skills Strong communicator Comfortable working in a fast paced environment Commercial and open-source industry tools If you are interested in this remote first Penetration Tester More ❯