1 to 25 of 36 Remote/Hybrid Permanent Penetration Tester Jobs

Senior Penetration Tester

Location
United Kingdom
Skip to content Senior Penetration Tester About the Company ThreatSpike is the world’s first AI-managed platform to deliver fully managed IT and complete cybersecurity as a single, fixed price subscription. One platform replaces the fragmented model of MSPs, MSSPs and point-solution vendors with one platform … between the teams. There is no ambiguity about who owns the outcome. About the Job Threatspike Labs as a whole provides many types of penetration testing and red team adversary engagements that clients may choose from. This includes but is not limited to web and API testing, external ...

Lead Pentester - SC Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Bristol, Stoke Gifford, Gloucestershire, United Kingdom
Employment Type
Permanent
Salary
£80000 - £100000/annum Company Benefits
Lead Penetration Tester/CHECK Team Leader (CTL) Location: Bristol - Hybrid (2 days per week onsite) Salary: £80,000 - £100,000 per annum + Company Benefits Employment Type: Permanent The Opportunity We are looking for an experienced Lead Penetration Tester/CHECK Team Leader … join a growing Offensive Security team within a leading defence and cyber security environment. This is an exciting opportunity for a technically strong penetration testing professional to take ownership of complex security engagements across Defence, Government and Critical National Infrastructure. You'll be working on challenging, high-assurance environments ...

Cyber Security Penetration Tester

Location
Greater London, England, United Kingdom
Title: Cyber Security Penetration Tester Locations: UK wide (hybrid work- 1x a month in office) Salary: Competitive salary and package (Depending on level of experience) Please Note:Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history … typically including no periods of 30 consecutive days or more spent outside of the UK) at the point of application. Role overview As a Penetration Tester, you will deliver hands-on security testing of client web applications, APIs and infrastructure. Working within a collaborative testing team, and supported ...

Lead Penetration Tester

Location
United Kingdom
Senior/Lead Penetration Tester & Cyber Security Consultant Remote, United Kingdom We are currently recruiting for an experienced Senior/Lead Penetration Tester & Cyber Security Consultant to support security testing engagements across complex cloud, infrastructure and modern application environments. This is an exciting opportunity … hands-on security professional with strong technical expertise across penetration testing, cloud security and containerised environments, including AWS, Azure, Docker, Kubernetes and CI/CD pipelines. You’ll be responsible for delivering high-quality security assessments, identifying vulnerabilities across diverse technology stacks and providing practical recommendations to strengthen security. ...

Penetration Tester - Consultancy

Location
West Yorkshire, England, United Kingdom
compliance projects, cutting effort and cost while building a robust structure to meet ongoing information security challenges. This is a great opportunity for a Penetration Tester to strengthen clients' security postures in a remote-based role. The ideal candidate will help clients prioritise and mitigate security risks across … their enterprises, working in a supportive environment with the opportunity to develop towards CREST Registered Penetration Tester status. Responsibilities: Conduct penetration testing assessments to identify vulnerabilities and weaknesses in clients' systems. Support the delivery of web application, infrastructure and network testing engagements under the guidance of senior ...

Remote Penetration Tester — Path to CREST Certification

Location
West Yorkshire, England, United Kingdom
Hamilton Barnes is looking for a Penetration Tester to strengthen clients' security postures in a remote-based role. You will conduct penetration testing across web, network and infrastructure, producing clear, actionable reports and mitigating identified risks. Join a team of privacy and cyber security specialists, with opportunities … develop toward CREST Registered Penetration Tester status and to advance your professional credentials while helping clients reduce risk and cost. #J-18808-Ljbffr ...

Principal Penetration Tester

Location
United Kingdom
# Principal Penetration TesterDragos · dragos.comCategory: Red Team/OffensiveLocation: United KingdomLevel: Staff/Principal## Quality of lifeWhat the posting states. Hover or tap a perk to see the line it came from.* EquityAt Dragos, the mission is personal. The systems we protect deliver the water you drink, power your … kind of work that matters to you, you are in the right place.About the Role:Our Professional Services Team is seeking Associate Principal OT Penetration Tester who will provide technical leadership across vulnerability assessments, penetration testing, and adversary emulation activities supporting customer services engagements. You will shape ...

Senior Penetration Tester - FinTech Security Leader

Location
Manchester, England, United Kingdom
person. In Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed … multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing ...

Senior Penetration Tester - FinTech Security Leader

Location
Cardiff, Wales, United Kingdom
person. In Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed … multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing ...

Senior Penetration Tester - FinTech Security Leader

Location
Southampton, England, United Kingdom
person. In Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed … multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing ...

Senior Penetration Tester - FinTech Security Leader

Location
Greater London, England, United Kingdom
person. In Technology, we're asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed … multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing ...

Senior Penetration Tester

Location
United Kingdom
person. In Technology, we’re asking that you attend the office a minimum of 1 day per week. About the Role As an experienced Penetration Tester at Starling, you’ll be joining an established team, working with talented cyber security professionals to ensure our services are designed, developed … multiple areas of the business to understand requirements, conduct research, perform security testing, and report issues aligned to our risk framework. Being an internal tester, you’ll gain a strong understanding of how technology works at Starling to enable in-depth testing. You’ll also support remediation processes, seeing ...

Principal Penetration Tester

Location
United Kingdom
work that matters to you, you are in the right place. About the Role Our Professional Services Team is seeking Associate Principal OT Penetration Tester who will provide technical leadership across vulnerability assessments, penetration testing, and adversary emulation activities supporting customer services engagements. You will shape engagement … Dragos within the broader OT security community. Responsibilities Serve as primary technical lead and trusted advisor for Dragos’s most complex, high-impact industrial penetration testing, purple teaming, and vulnerability assessment engagements, shaping engagement direction and aligning deep technical execution with client business goals. Set the technical ...

Penetration Tester - Systems Integrator

Location
South Yorkshire, England, United Kingdom
Ready to identify vulnerabilities before attackers do? Join a cybersecurity services provider recognised for delivering penetration testing, advisory, and compliance solutions to enterprises. With a reputation for technical expertise and trusted delivery, the organisation continues to help businesses strengthen resilience and protect critical systems against evolving threats. The team … hiring a Penetration Tester to conduct security assessments across applications, networks, and infrastructure. The role will focus on simulating real-world attacks, identifying weaknesses, and providing actionable recommendations to improve overall security posture. Turn offensive skills into defensive strength. Apply now! Responsibilities Conduct hands-on penetration testing ...

Lead OT Penetration Tester & Threat Emulation - Remote

Location
United Kingdom
Dragos is seeking an Associate Principal OT Penetration Tester to lead complex vulnerability assessments and penetration testing across critical infrastructure clients. You will shape engagement strategy, perform hands‐on exploitation, and translate findings into remediation guidance that informs detection and platform development. You will mentor teams, engage ...

Remote Penetration Tester & Security Advisory Lead

Location
South Yorkshire, England, United Kingdom
cybersecurity services provider is seeking a Penetration Tester to conduct security assessments across various clients. The role offers flexibility to work remotely or from the Sheffield office, and the ideal candidate will have 2-4 years of experience, a CREST certification, and strong communication skills. You'll help … build a Penetration Testing team and contribute to the growth of the business. #J-18808-Ljbffr ...

Penetration Tester — Hybrid London, Red Team Growth

Location
Greater London, England, United Kingdom
leading cybersecurity firm in London is seeking a passionate Penetration Tester to enhance their offensive security team. You will support cloud and infrastructure security assessments, write detailed reports for various stakeholders, and collaborate with a diverse team. Candidates must hold an OSCP certification and have knowledge ...

Remote Penetration Tester & Security Consultant

Location
Oxford, England, United Kingdom
Dionach by Nomios in the UK is seeking an experienced penetration tester to conduct tests across web apps, APIs, Cloud, and networks, delivering detailed findings and remediation guidance. The role requires at least two years in pentesting, certifications such as CREST/OSCP, and the ability to communicate ...

Senior Penetration Tester - Cloud, Containers & CI/CD

Location
United Kingdom
Consult is actively seeking an experienced Senior/Lead Penetration Tester & Cyber Security Consultant to support security testing across cloud, infrastructure, and modern applications in a fully remote capacity for the United Kingdom. The role emphasizes hands-on testing in AWS/Azure cloud environments, Docker/Kubernetes ...

Hybrid Penetration Tester: WebApp, Cloud & Infra

Location
Southwater, England, United Kingdom
Barclay Simpson is seeking an internal Penetration Tester to work on WebApp, Infrastructure (internal and external), and Cloud testing. You will carry out annual perimeter tests, engage in project work, and perform peer reviews of reports. You will communicate findings to senior stakeholders in the business and work ...

DV-Cleared Senior Penetration Tester | CHECK Team Lead

Location
Taunton, England, United Kingdom
Secure Consult is seeking a Senior Penetration Tester with CHECK Team Lead expertise for a two-year contract based in Taunton. The role is hybrid but heavy on site, requiring approx. 110 days on client premises annually. You will lead offensive security assessments across infrastructure and web applications ...

Penetration Tester – Web Apps & APIs (Hybrid UK)

Location
Greater London, England, United Kingdom
Accenture PLC is seeking a Cyber Security Penetration Tester to perform hands-on security testing of client web applications, APIs and infrastructure across the UK. You will work within a collaborative testing team, guided by senior testers and CHECK Team Leaders on complex engagements, delivering clear remediation advice. … This role suits an early-career tester looking to broaden technical skills and pursue recognised industry certifications while working in a hybrid model (1 day a month in the #J-18808-Ljbffr ...

Senior Penetration Tester - Remote Security Leader & Mentor

Location
United Kingdom
ThreatSpike Ltd. is seeking a Senior Penetration Tester to lead web, internal and external assessments, using OWASP and MITRE ATT&CK frameworks. The role emphasizes mentorship, client communication, and hands-on testing across platforms. Remote-first role across the United Kingdom, United States, Singapore and United Arab Emirates ...

Penetration Tester

Location
Swindon, England, United Kingdom
Penetration Testing Engineer, you will be conducting security assessments, working within our wider offensive security team, playing a key role in identifying and advising on technical findings across Nationwide’s estate. You will be joining a growing team of dedicated and like-minded individuals where you will be expected … work independently and proactively to ensure that penetration tests are completed successfully, and the findings are understood by key stakeholders. You will have demonstrable experience in delivering penetration tests from scoping through to reporting and post-test triage activity. You will be able to perform tests across ...

Security Penetration Tester

Hiring Organisation
Response Informatics
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Greetings from Response Informatics!! We are currently hiring a AI Security Tester for an exciting client engagement. Role: AI Security Tester Location: Reading , UK ( Hybrid Role, when needed will have to travel to Client offices or customer location) Positions: Permanent Clearance: SC Cleared/Eligible Role Overview … will have to travel to Client offices or customer location What Youll Do Conduct adversarial testing to challenge AI model safety and guardrails Perform penetration testing and fuzzing of AI systems Identify risks such as data poisoning, model evasion, hallucinations, and bias Validate data privacy controls, including PII handling ...