151 to 175 of 182 Penetration Testing Jobs in London

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 ❯

and vulnerabilities, leveraging threat intelligence to proactively mitigate risks Perform proactive threat hunting, research, and analysis, delivering actionable intelligence to IT and security teams Perform security assessments, audits, and penetration testing using industry-standard methodologies and tools. Work with key software and service vendors to manage security products and solutions. Undertake ongoing security training and certifications relevant to More ❯

and vulnerabilities, leveraging threat intelligence to proactively mitigate risks Perform proactive threat hunting, research, and analysis, delivering actionable intelligence to IT and security teams Perform security assessments, audits, and penetration testing using industry-standard methodologies and tools. Work with key software and service vendors to manage security products and solutions. Undertake ongoing security training and certifications relevant to 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 ❯

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 ❯

ll play a crucial role in safeguarding our environment. You'll also contribute to building custom security tools to enhance our capabilities and support security assessments, threat modelling, and penetration testing. You'll come with hands-on experience with AWS and Cloudflare and be comfortable working with Infrastructure as Code tools like Terraform. A strong understanding of common vulnerabilities More ❯

corporate_fare Google place London, UK ; Manchester, UK Apply info_outline info_outline X Info Note: By applying to this position you will have an opportunity to share your preferred working location from the following: London, UK; Manchester, UK. Note More ❯

Senior Penetration Tester – UK remote - £60,000 - £80,000 Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester … position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists. Key Responsibilities Lead and execute complex penetration tests and adversary simulations Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK Develop custom tooling and exploits where required Create detailed, client-facing … and contribute to internal R&D Support scoping, pre-engagement, and post-engagement activities Stay sharp: engage in continuous learning and threat landscape analysis About You Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.) Strong understanding of attacker TTPs and detection evasion Familiarity with frameworks such as OWASP , MITRE ATT&CK , and NIST More ❯

a growing FinTech, building cutting edge trading platforms for hedge funds and investment managers around the world. In London, they’re looking for an Application Security Engineer, with strong Penetration Testing experience, to join them. This is an initial 6 month contract, hybrid working (3 days a week in the office), outside IR35 and paying ~£550 - £600 per … part of a security -focused transformation and you’ll be responsible for identifying and mitigating security vulnerabilities, and risk, within their applications. You’ll focus on building security tools, penetration testing and performing security assessments, whilst updating internal security processes and documentation in the process. Required: Strong experience as an App Sec Engineer Extensive experience of Penetration Testing Hands-on experience with tools such as Burp Suite and Metasploit Capable of designing Security policies, procedures and best practices The ability to investigate and respond to Security related incidents within applications, and work closely with Dev teams throughout API Testing experience (with the likes of REST and Postman) would be ideal More ❯

Develop CTI tactical, operational and strategic intelligence framework and processes Threat hunting - Develop and lead structured threat hunting campaigns-based threat intelligence, MITRE ATT&CK, and risk models Pen Testing - Support internal testing of hypotheses and validation of remediation from pen tests You will be experienced and hands-on with a Cyber Threat Intelligence and Threat Hunting Specialist … Manager, you will support designing, building and operationalising the threat intelligence and proactive detection capabilities within the SOC. The primary focus is on CTI development and structured threat hunting, penetration testing and offensive security experience is a significant plus, to support internal simulation, and validation of remediation capabilities. This is an initial 6-month contract, 40% on site More ❯

duties Support and deliver all aspects of services within the Infrastructure team. Manage BAU activities including networks, telephony, PABX, voice recording, desk moves, and changes. Support annual Disaster Recovery testing and invocation. Contribute to the design, build, and implementation of firewall solutions from perimeter to DMZ. Develop, maintain, and enforce global standards for networking devices. Interpret network security reports. … Assist with migrating the network estate to a new security framework. Facilitate internal and external audits and penetration testing, including remediation. Technical Skills In-depth knowledge of Cisco technologies, including firewalls, switches, and routing protocols. Experience supporting data centers with branch interconnectivity (LES circuits). Cisco CCNA certification is required. Knowledge of VPN technologies (IPSEC). Security certifications More ❯

Support and deliver all aspects of network services within the Infrastructure team. Manage BAU activities including networks, telephony, PABX, voice recording, desk moves, and changes. Support annual Disaster Recovery testing and invocation. Design, build, and implement firewall solutions from perimeter to DMZ. Support IPS deployment across European sites. Develop, maintain, and enforce global standards for networking devices. Interpret network … security reports. Assist with migrating network estate to new security frameworks. Facilitate internal and external audits and penetration testing, including remediation. Manage treasury solutions such as IPC turrets. General Skills: Experience working in mission-critical environments. Experience in operational deployments. Maintain industry-recognized skills through ongoing training and self-study. Technical Skills: Deep knowledge of Cisco technologies including More ❯

Work within Infrastructure team in supporting and delivering all aspect of services - BAU encompassing networks, telephony, PABX, voice recording, desk moves and changes - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of firewall solutions from perimeter to DMZ roles - Develop, maintain and deliver global standards to all networking devices - Interpret network security reports - Assist … with seamless migration of network estate to newly adopted security framework - Facilitate internal/external Audits and Penetration Testing. Remediation Technical Skills -In-depth knowledge of CISCO including firewalls, switches and routing protocols -In-depth knowledge of supporting a datacentre with branch interconnectivity (LES circuits) -CISCO certification, required CCNA -VPN technologies (IPSEC) -Security certification (advantageous) Technologies Layer 2 Switching More ❯

Work within Infrastructure team in supporting and delivering all aspect of services - BAU encompassing networks, telephony, PABX, voice recording, desk moves and changes - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of firewall solutions from perimeter to DMZ roles - Support IPS deployment for European sites - Develop, maintain and deliver global standards to all networking … devices - Interpret network security reports - Assist with seamless migration of network estate to newly adopted security framework - Facilitate internal/external Audits and Penetration Testing. Remediation - Treasury solutions such as IPC turrets General Skills -Experience working within mission-critical environments -Experience in operational deployments -Maintains required industry recognised skills through training and self-study methods Technical Skills -In-depth More ❯

this role, you will help drive the MSSP partner base across the UK and beyond, connecting with cybersecurity firms that offer advanced services such as SOC/MDR, Pen Testing, Threat Intelligence, and Incident Response. What you’ll be doing Identify and research MSSPs delivering SOC/MDR, Red Teaming, Pen Testing, or Incident Response services Outbound prospecting … months+ experience in a BDR, SDR, or inside sales role in Cyber Security, MSSP, or SaaS Knowledge of MSSP services such as SOC/MDR, Threat Intel, Pen Testing, or Cyber Risk Audits is a strong plus Proven success in achieving key metrics (e.g. meetings booked) Ambitious and driven to fast-track your career and have an impact on 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 ❯

Penetration Tester - Infrastructure/OT (Consultancy | Mostly Remote | Not for Beginners) Right. Let’s skip the fluff. One of our consultancy clients needs an experienced Infrastructure Pen Tester. Not someone who wants to be a Pen Tester. Not someone halfway through their OSCP. Someone who's been there, and got some of the battle scars already. They work with … sort of environments where “turning it off and on again” could cost millions. So yeah, it’s not your average test. The Job (in plain English): You’ll be testing infrastructure - manually. No Web App fluff, no clicking “scan” in a tool and writing up the results. You’ll be dealing with proper kit and real-world impact. A … lot of autonomy, and the expectation that you can figure things out without someone holding your hand. What You Actually Need: Hands-on experience with infrastructure pen testing - and we mean proper hands-on. Experience in OT environments - You’ve been there, done that, ideally not blown anything up. Brains - Able to look at a scope, figure it out More ❯

Penetration Tester - Infrastructure/OT (Consultancy | Mostly Remote | Not for Beginners) Right. Let’s skip the fluff. One of our consultancy clients needs an experienced Infrastructure Pen Tester. Not someone who wants to be a Pen Tester. Not someone halfway through their OSCP. Someone who's been there, and got some of the battle scars already. They work with … sort of environments where “turning it off and on again” could cost millions. So yeah, it’s not your average test. The Job (in plain English): You’ll be testing infrastructure - manually. No Web App fluff, no clicking “scan” in a tool and writing up the results. You’ll be dealing with proper kit and real-world impact. A … lot of autonomy, and the expectation that you can figure things out without someone holding your hand. What You Actually Need: Hands-on experience with infrastructure pen testing - and we mean proper hands-on. Experience in OT environments - You’ve been there, done that, ideally not blown anything up. Brains - Able to look at a scope, figure it out More ❯

a growing FinTech, building cutting edge trading platforms for hedge funds and investment managers around the world. In London, they’re looking for an Application Security Engineer, with strong Penetration Testing experience, to join them. This is an initial 6 month contract, hybrid working (3 days a week in the office), outside IR35 and paying ~£550 - £600 per … part of a security -focused transformation and you’ll be responsible for identifying and mitigating security vulnerabilities, and risk, within their applications. You’ll focus on building security tools, penetration testing and performing security assessments, whilst updating internal security processes and documentation in the process. Required: Strong experience as an App Sec Engineer Extensive experience of Penetration Testing Hands-on experience with tools such as Burp Suite and Metasploit Capable of designing Security policies, procedures and best practices The ability to investigate and respond to Security related incidents within applications, and work closely with Dev teams throughout API Testing experience (with the likes of REST and Postman) would be ideal More ❯

a growing FinTech, building cutting edge trading platforms for hedge funds and investment managers around the world. In London, they’re looking for an Application Security Engineer, with strong Penetration Testing experience, to join them. This is an initial 6 month contract, hybrid working (3 days a week in the office), outside IR35 and paying ~£550 - £600 per … part of a security -focused transformation and you’ll be responsible for identifying and mitigating security vulnerabilities, and risk, within their applications. You’ll focus on building security tools, penetration testing and performing security assessments, whilst updating internal security processes and documentation in the process. Required: Strong experience as an App Sec Engineer Extensive experience of Penetration Testing Hands-on experience with tools such as Burp Suite and Metasploit Capable of designing Security policies, procedures and best practices The ability to investigate and respond to Security related incidents within applications, and work closely with Dev teams throughout API Testing experience (with the likes of REST and Postman) would be ideal More ❯

and Security practices. Staff Quality Engineer (Mobile) Key Responsibilities: Design, implement, and execute automated test strategies for iOS and Android applications, ensuring functionality, performance, and security. Champion Shift Left testing, ensuring quality is built into the software development process from the earliest stages. Collaborate closely with cross-functional teams to define test plans and specifications for mobile features. Implement … and maintain robust CI/CD pipelines that include testing frameworks, automation, and deployment strategies for mobile apps. Lead Test-Driven Development ( TDD ) initiatives, ensuring developers are writing tests that validate features early in the development cycle. Conduct security testing to identify vulnerabilities in mobile applications, ensuring compliance with industry standards and best practices. Perform root cause analysis … and troubleshooting of defects, continuously improving testing processes and outcomes. Provide mentorship and technical leadership to junior quality engineers, helping to elevate the overall engineering practice within the team. Required Skills and Experience: 5+ years of experience in mobile application testing, with deep expertise in iOS and Android platforms. Proven track record of working with Shift Left testing More ❯

hands-on experience. Contract Duration: 6 Months (Possible Extension) What You Will Be Doing Tech Breakdown: 50% Automation 50% Manual Daily Responsibilities SQL Injection & Cross-site scripting Grey box penetration testing, and perform access control Identify and exploit vulnerabilities to assess security risks. Communicate with clients about security issues and provide tailored solutions. Collaborate with developers and security More ❯

Current Salary Expected Pay Rate Nationality/Visa Status Willing to work in London (Yes/No) Job Role and Responsibilities Handle HMG-PSN code of connection compliance Coordinate penetration testing and remediate outcomes Manage x-krypton link Support PSN audits Manage HMG key material Maintain access records Required Skills Knowledge of physical servers and VMware virtualization Knowledge More ❯

large investment firm building its own LLMs is looking to establish an AI Red Team to identify vulnerabilities, biases, and safety concerns in their models. You will work on testing the security and robustness of these systems, as well as assessing their potential to cause harm to humans. Ideal candidates may come from a traditional Pen Testing background 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 ❯