126 to 145 of 145 Remote Penetration Testing Jobs

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – 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, not web application focused, where you'll be expected to work independently and navigate challenging systems with confidence. This role is suited to testers who thrive in technically demanding scenarios, want autonomy, and are motivated by work with real-world impact. Key Responsibilities Conduct internal … infrastructure and Active Directory penetration tests in live production 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 More ❯

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – 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, not web application focused, where you'll be expected to work independently and navigate challenging systems with confidence. This role is suited to testers who thrive in technically demanding scenarios, want autonomy, and are motivated by work with real-world impact. Key Responsibilities Conduct internal … infrastructure and Active Directory penetration tests in live production 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 More ❯

Penetration Tester £up to £100,000 GBP Bonus Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Role: Penetration Tester (Infrastructure Focus) Work Type & Location: Hybrid - London preferred (other UK locations considered) Role Type: Permanent Start Date: Immediate Anson McCade is proud to be supporting a global innovation and transformation consultancy in growing their elite Digital … Data team. We're seeking a Penetration Tester with a deep focus on infrastructure and Active Directory environments. This isn't your typical web app testing role-this is hands-on, internal infrastructure testing in high-stakes client environments (defence, critical infrastructure, national security). This is a high-trust, high-impact role for someone confident in … navigating sensitive networks, with the ability to think independently, consult directly with clients, and deliver clear, actionable insights. As a Penetration Tester, you will: • Deliver internal infrastructure penetration tests, including Active Directory environments • Act as a trusted advisor to clients-this is a hands-on consulting-facing role • Document clear, concise technical reports for both technical and non More ❯

We are currently recruiting for a highly awarded Managed Security Service Provider for the role of Lead Penetration Tester. This is a fantastic opportunity to join a business known for its cutting-edge connectivity, cloud, and communications solutions. Role Overview *CANDIDATES MUST BE BASED IN THE UK* Location: Remote Package: £65,000- £80,000 Number of Roles Available … Clearance due to the nature of clients Full UK Driving License & Access to a vehicle are essential Experience working in the public sector would be desirable Strong experience in Penetration Testing Cyber Scheme, CREST or CHECK Certifications are required Strong background and understanding of cybersecurity, with a knowledge of penetration testing frameworks and methodologies Strong client More ❯

We are currently recruiting for a highly awarded Managed Security Service Provider for the role of Lead Penetration Tester. This is a fantastic opportunity to join a business known for its cutting-edge connectivity, cloud, and communications solutions. Role Overview *CANDIDATES MUST BE BASED IN THE UK* Location: Remote Package: £65,000- £80,000 Number of Roles Available … Clearance due to the nature of clients Full UK Driving License & Access to a vehicle are essential Experience working in the public sector would be desirable Strong experience in Penetration Testing Cyber Scheme, CREST or CHECK Certifications are required Strong background and understanding of cybersecurity, with a knowledge of penetration testing frameworks and methodologies Strong client More ❯

Senior Penetration Tester | 12 Month Initial Contract | £750 - £850 per day (Inside IR35) | Cheltenham or London | 1 day per week on-site | SC Clearance Eligibility Required MERITUS Talent are working with a boutique Defence consultancy supporting a UK Central Government department in their Cyber Security function. We're looking for an experienced Senior Penetration Tester with a strong … leads, particularly those working independently without peer support. Advising the wider project team on best practices in red teaming and adversary simulation. Skills Required: Solid hands-on experience in penetration testing and red teaming, particularly in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor More ❯

Senior Penetration Tester | 12 Month Initial Contract | £750 - £850 per day (Inside IR35) | Cheltenham or London | 1 day per week on-site | SC Clearance Eligibility Required MERITUS Talent are working with a boutique Defence consultancy supporting a UK Central Government department in their Cyber Security function. We're looking for an experienced Senior Penetration Tester with a strong … leads, particularly those working independently without peer support. Advising the wider project team on best practices in red teaming and adversary simulation. Skills Required: Solid hands-on experience in penetration testing and red teaming, particularly in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor More ❯

Senior Penetration Tester | 12 Month Initial Contract | £750 - £850 per day (Inside IR35) | Cheltenham or London | 1 day per week on-site | SC Clearance Eligibility Required MERITUS Talent are working with a boutique Defence consultancy supporting a UK Central Government department in their Cyber Security function. We're looking for an experienced Senior Penetration Tester with a strong … leads, particularly those working independently without peer support. Advising the wider project team on best practices in red teaming and adversary simulation. Skills Required: Solid hands-on experience in penetration testing and red teaming, particularly in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor More ❯

QA Engineer QA, Web/Mobile testing, Functional/Regression testing Salary circa £55,000 - £60,000 Remote working with occasional meet ups in either Cambridge or Manchester About the Role: QA Engineer to join a fast growing start up/scale up financial services company. You will work closely with developers, product managers and other stakeholders to … create and execute comprehensive testing strategies for web and mobile applications, APIs, and complex financial transaction flows. Key Responsibilities: Develop, implement, and maintain test strategies, test plans, and test cases for web and mobile applications. Perform functional, integration, regression, and API testing to ensure system reliability and performance. Utilize JIRA and Confluence for test management, bug tracking, and … clearing). Ensure quality assurance in crypto CeFi and DeFi applications by understanding their functionalities and potential risks. Advocate for automation and CI/CD best practices to improve testing efficiency. Requirements: 5+ years of experience in software testing, specifically in financial or crypto-related applications. Strong grasp of crypto CeFi and DeFi concepts and their transaction flows. More ❯

identity, nationality (single or dual) or immigration status, employment history going back 3 continuous years, unspent criminal record check (known as Disclosure and Barring Service). Your role IoT Testing ensuring the device connectivity and security. Your skills and experience Candidate should have 5 8 years experience in QA testing role in embedded and IoT products. Understanding embedded … systems, IoT protocols (MQTT, CoAP, HTTP), and cloud integration. Testing hardware, firmware, and performance of IoT devices. Verifying communication protocols (Wi-Fi, Zigbee, Bluetooth) and network coverage. Ensuring secure authentication, data encryption, and penetration testing for IoT devices. Conducting security tests on IoT devices, ensuring data privacy and vulnerability assessments. Verifying data integrity, synchronization, and handling of … big data in IoT systems. Knowledge of writing & automating IoT testing scripts and integrating with CI/CD pipelines (optional). Knowledge of cloud platforms like AWS IoT, Azure IoT for cloud-IoT device integration. Worked in agile teams, understand agile methodologies and proficient in JIRA and defect lifecycle management. Perform manual test execution and API testing for More ❯

based forensics, cyber incident response, cyber-criminal investigation, intrusion detection/analysis, designing countermeasures and mitigations against potential exploitations of programming language weaknesses and vulnerabilities, cyber red teaming, network penetration testing, security operations center analysis, defensive cyber operations, or offensive cyber operations. (desired, not required) - Experience in malware development, analysis, binary disassembly, binary decomplication, network/communication protocol … Apprentice Course (RTAC) - Red Team Journeyman Course (RTJC) - Certified Red Team Operator (CRTO) certification - Offensive Security Certified Professional (OSCP) - Rogue Ops- Red Team 1 (ROPS) - GIAC Exploit Researcher & Advanced Penetration Tester (GXPN) - GIAC Penetration Tester (GPEN) - GIAC Web Application Penetration Tester (GWAP) Certifications: None required. Security Clearance: Ability to obtain a DoD TS/SCI More ❯

improvements, this role is perfect for you! We value diverse experiences and perspectives. Here's what we're looking for in our ideal candidate: Experience delivering offensive security and penetration testing engagements. Experience of delivering and leading cyber security advisory and offensive security testing engagements in a professional services context. Understand technology trends, cyber threats, and industry … issues. Excellent written and oral communication, report writing and presentation skills. Experience of executing security testing techniques such as threat modelling, reconnaissance, social engineering, enumeration, attack path mapping, exploitation, and clean up from a variety of adversarial perspectives (white/grey/black box testing). What we can offer you: We recognise that our people are our More ❯

path to enhanced cybersecurity and compliance. You work side by side with your client, providing advisory and support to address challenges with precision and confidence. With our expertise in penetration testing , risk assessments , and independent OT security assessments, you empower your client to achieve exceptional cyber resilience. From securing industrial control systems to safeguarding critical processes, your efforts More ❯

We are currently recruiting for a highly awarded Managed Security Service Provider for the role of Penetration Tester. This is a fantastic opportunity to join a business known for its cutting-edge connectivity, cloud, and communications solutions. Role Overview *CANDIDATES MUST BE BASED IN THE UK* Location: Remote Package: £40,000- £60,000 Number of Roles Available: 5 What … to the nature of clients Full UK Driving License & Access to a vehicle are essential Experience working in the public sector would be desirable 2+ years of experience in Penetration Testing The Cyber Scheme, CREST or CHECK Certifications are required Strong background and understanding of cybersecurity, with a knowledge of penetration testing frameworks and methodologies Strong More ❯

security standpoint - maintaining things practical using a risk-based approach with a focus on following areas: Automation of security controls, security hardening of the developer and IaC processes (building, testing, release), supply chain security (part of the build process), related metrics and monitoring/audits Network, VM & container image and system hardening, Cloud issues and misconfigurations Endpoint Security, Infrastructure … Identity and Access Management, SIEM, Threat intelligence, common misconfigs (DNS, email, networking, etc.) Organising and performing penetration testing of our infrastructure, and collaborating with external parties on those tests. Picking tools, methods and approaches to maintain and improve the security stance of the company. (And we have a strong preference towards FOSS tooling when possible) Writing and enabling More ❯

are hiring for an experienced Business Development Manager for our market leading Cyber Security client. Our client specialises in offering Cyber Security Solutions, including but not limited to Pen Testing, Incident Response, Investigative Services and accreditations. If you have a passion for Cyber Security and a minimum of 2 years in Cyber Security sales then this could be the … to target clients. Essentials: A minimum of 2 years exceeding targets in a Business Development role specifically within Cyber Security. Knowledge of Cyber Services, such as incident response, Pen Testing or Digital Forensics. A competitive and Goals driven mindset. Well versed in the use of CRM software and additional sales software tools. Minimum of 5 years continual residency in More ❯

HackerOne is a global leader in offensive security solutions. Our HackerOne Platform combines AI with the ingenuity of the largest community of security researchers to find and fix security, privacy, and AI vulnerabilities across the software development lifecycle. The platform 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 testing operations. As a result, engagements are centred around making your day-to-day responsibilities as easy as possible, with a pure focus on value added testing. Most of your time will be spent on advanced testing and large-scale engagements that give you the opportunity to collaborate with wider technologists. (engineers, developers and blue teamers) They … but that’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 More ❯

occasional trips to the London Office. This role has been determined outside IR35. Key Skills Required: Reverse Engineering of Android Apps Knowledge of Android Platform and Security mechanisms Pen Testing and Vulnerability Assessment Track recording of working in a high-achieving team This client is looking to review CV's and interview in the next week so if you More ❯

HackerOne is a global leader in offensive security solutions. Our HackerOne Platform combines AI with the ingenuity of the largest community of security researchers to find and fix security, privacy, and AI vulnerabilities across the software development lifecycle. The platform More ❯