🇬🇧Penetration testing jobs in London
35 open roles mentioning Penetration testing in London as of Nov 15, 2026. Faculty, Encord, Anthropic, Financial Times and Writer have the most. 1 is remote.
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Skills asked for in Penetration testing roles in London
Bars show the share of these 35 roles; one role can count in several rows.
- Information Security Engineer - Infrastructure SecurityPalantir · 🇬🇧London, United Kingdom—LinuxCI/CDSecurity clearance
- Head Of SecurityEncord · 🇬🇧London—Lead and aboveGCPLLMIncident response
- Senior Security Engineer (Application Security)Encord · 🇬🇧London—SeniorPythonTypeScriptGCP
- Lead Machine Learning EngineerFaculty · 🇬🇧London—HybridLead and aboveMachine LearningPyTorchTensorFlow
- Security engineer, application security (UK)Writer · 🇬🇧London, UK—HybridGoPythonTypeScript
- Senior Detection Engineer | SecOpsArq · 🇬🇧London—HybridSeniorPythonTerraformKubernetes
- Senior Security Engineering ManagerEbury · 🇬🇧London—SeniorGCPLLMCI/CD
- Frontend EngineerFaculty · 🇬🇧London—HybridTypeScriptJavaScriptReact
- Principal Security Engineer (AppSec)Teya · 🇬🇧London—Lead and aboveGoCISSPCISM
- Software EngineerFaculty · 🇬🇧London—HybridPythonDockerGCP
- Machine Learning EngineerFaculty · 🇬🇧London—HybridPythonDockerGCP
- Lead Security EngineerEncord · 🇬🇧London—Lead and aboveTerraformGCPCI/CD
- Senior Machine Learning Engineer (Safety)Faculty · 🇬🇧London—HybridSeniorPythonDockerGCP
- Senior Software Engineer (Safety)Faculty · 🇬🇧London—HybridSeniorPythonDockerGCP
- Software Engineer (Safety)Faculty · 🇬🇧London—HybridPythonDockerGCP
- Machine Learning Engineer (Safety)Faculty · 🇬🇧London—HybridPythonDockerGCP
- Associate (National Security)Faculty · 🇬🇧London—HybridJuniorAgilePenetration testingPRDs
- Senior Manager (Safety)Faculty · 🇬🇧London—HybridSeniorLLM evaluationPenetration testing
- Senior Solutions Architect - Data LabsInvisible Technologies · 🇬🇧🇺🇸London - Hybrid; New York - Hybrid; San Francisco Bay Are…—HybridSeniorPythonSQLMachine Learning
- Principal Research Scientist - AI SafetyFaculty · 🇬🇧London—HybridLead and abovePythonLLMAI
- Customer Director (Safety)Faculty · 🇬🇧London—HybridLead and abovePenetration testing
- Senior Data Scientist (Safety)Faculty · 🇬🇧London—HybridSeniorPythonPandasAI agents
- Senior Software Engineer - AI FoundationsKrakentech · 🇬🇧London, UK—HybridSeniorPythonLLMDjango
- Associate (Safety)Faculty · 🇬🇧London—HybridJuniorAgileLLM evaluationPenetration testing
- Lead Application Security EngineerCAIS · 🇬🇧London, England—Lead and aboveTypeScriptJavaScriptReact
- Senior Security Engineer (AI Safety), London, LausanneIsomorphic Labs · 🇨🇭🇬🇧Lausanne; London—SeniorPythonGCPMachine Learning
- Principal Engineer, Product Securitycommercetools · 🇬🇧London, England, United Kingdom (Hybrid)—HybridLead and aboveGoJavaScriptTerraform
- Senior Machine Learning EngineerFaculty · 🇬🇧London—HybridSeniorPythonDockerGCP
- Security EngineerStackone · 🇬🇧London—HybridGoPythonTypeScript
- Security EngineerGranola · 🇬🇧London—PythonTypeScriptAWS
- Application Security EngineerFinancial Times · 🇬🇧🇧🇬London; Sofia—PythonTerraformLLM
- Senior Cyber Security EngineerFinancial Times · 🇬🇧🇧🇬London; Sofia—SeniorPythonTerraformCI/CD
- Anthropic Fellows Program, AI Safety & SecurityAnthropic · 🇬🇧🇨🇦🇺🇸London, UK; Ontario, CAN; Remote-Friendly, United States…—RemotePythonLLMSmart contracts
- Senior Manager (National Security)Faculty · 🇬🇧London—HybridSeniorPenetration testingCustomer onboarding
- [Expression of Interest] Research Engineer / Scientist, Alignment - LondonAnthropic · 🇬🇧London, UK£260K - £370KPythonMachine LearningLLM
Who is hiring for Penetration testing roles in London
Questions about Penetration testing jobs in London
- How many Penetration testing jobs in London are open right now?
- There are 35 open Penetration testing jobs in London at 16 companies on Jobs Every Hour as of Nov 15, 2026. 4 of them were posted in the last seven days. The list is rebuilt every hour from the employers' own careers pages.
- Which companies have the most Penetration testing jobs in London?
- Right now the most openings are at Faculty (16), Encord (3), Financial Times (2), Anthropic (2) and Palantir (1). The ranking changes as companies open and close roles.
- Are there remote Penetration testing jobs in London?
- 1 of the 35 open Penetration testing jobs in London (3%) are listed as remote. Remote roles are often limited to certain countries or time zones, so check the location line of each job.
- Is it hard to get one of the Penetration testing jobs in London?
- 2 of the 35 open Penetration testing jobs in London (6%) are for beginners: junior roles and internships. 16 companies are hiring and 4 roles were posted in the last seven days. Matching your resume to the skills each posting names helps most; the free resume builder shows the match.
- How is AI changing Penetration testing jobs in London?
- 21 of the 35 open Penetration testing jobs in London (60%) ask for AI or machine-learning skills, most often LLM, Machine Learning, PyTorch. Employers still list 35 such roles today at 16 companies. Counted from the postings' own text on Nov 15, 2026.
- What skills do Penetration testing jobs in London ask for?
- Most often Penetration testing (100%), Python (60%), AWS (51%), LLM (46%), Kubernetes (43%) of the 35 open postings, counted from their own text on Nov 15, 2026.
- Which job titles come up most in Penetration testing jobs in London?
- Senior Security Engineer (2), Software Engineer (2), Machine Learning Engineer (2), Senior Machine Learning Engineer (2), Senior Software Engineer (2): the most common titles among the 35 open roles, without the level and place notes in brackets.
- Are Penetration testing jobs in London in demand in 2026?
- 35 Penetration testing jobs in London are open on Jobs Every Hour today at 16 companies, 0.0% of all 148,162 open jobs here; 4 were posted in the last seven days. 1 (3%) can be done remotely.
- How do I apply for Penetration testing jobs in London?
- Open a job and press “Apply on company site”. You go straight to the employer's own careers page and apply there. Jobs Every Hour needs no account and charges nothing for applying.
More like Penetration testing jobs in London
- Jobs in London 5,523
- Penetration testing jobs 599