Offensive Security Testing
379 open positions
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Penetration Testing, Software Assurance and Vulnerability Assessment Engineer One Federal SolutionWashington D.C., DC, US 3mo Conducting senior-level penetration testing, software assurance, and vulnerability assessment engineering to identify and remediate security flaws in software and cloud environments.
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Sr. Manager, Information Security – Application Security & Red Team NetskopeIndia 3mo Lead and scale the Red Team and Application Security function to identify security weaknesses through adversary emulation, penetration testing, and offensive security assessments across products and infrastructure.
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Security QA Engineer (Penetration Testing Focus) @ Innowise InnowisePolska 3mo Perform penetration testing and vulnerability assessments of web applications, APIs, mobile apps, and infrastructure to identify security flaws and provide remediation.
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Staff Security Engineer (Penetration Tester) CoupangSeoul 3mo Conducting penetration tests on web, mobile, API, and network systems to identify and analyze security vulnerabilities for Coupang's e-commerce platform.
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Offensive Security Engineer/Lead AjaibJakarta, Jakarta, Indonesia 3mo Spearhead adversarial simulation, penetration testing, and vulnerability research programs to proactively identify and neutralize security weaknesses.
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Director of Offensive Security NorthmarkDallas, TX 3mo Build and run a continuous red team program against production HPC clusters, multi-tenant Kubernetes, and cloud infrastructure to emulate threat actors and validate security controls.
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Staff Attack Engineer, OCI Horizon3aiRemote $247k–$247k3mo Building production OCI attack content and offensive security capabilities for the NodeZero autonomous pentesting platform.
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Lead Security Engineer, Red Team & Threat Intel GrabPetaling Jaya, my 3mo Lead offensive security operations and threat intelligence to emulate adversaries and strengthen Grab's security posture across cloud, AI, and enterprise systems.
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Sr. Product Security Engineer/Researcher/Technical Manager (Offensive Security) MediaTekTaipei 3mo Perform threat modeling, vulnerability analysis, secure code reviews, fuzz testing, and penetration testing to fortify product security.
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Senior/Lead/Principal Offensive Security SalesforceIsrael - Tel Aviv 3mo Conduct advanced penetration testing, red team operations, and security research to discover and exploit vulnerabilities in Salesforce's cloud infrastructure, applications, and services.
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CHECK or CREST Penetration Tester - Leeds Oscar Associates LimitedLeeds, West Yorkshire $40k–$40k3mo Conducting web application, API, and infrastructure penetration tests, supporting purple team activities, and delivering professional security reports to clients.
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Senior Security Engineer, Red Team DoordashusaSan Francisco $160k–$160k3mo Conduct threat intelligence-informed adversary emulations to simulate real-world cyber attacks and proactively identify security improvement opportunities in the DoorDash environment.
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Vice President, Application Security SaviyntBengaluru 3mo Lead a world-class Application Security function, conducting advanced offensive security assessments and penetration testing for web applications, APIs, cloud infrastructure, and AI-integrated systems.
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Security Research Engineer PensarNew York, New York, United States $120k–$120k3mo Operate as a hybrid Forward Deployed Engineer and offensive security researcher, running pentests with the Apex tool, presenting findings to customers, and driving original security research to improve the product.
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Informācijas Sistēmu Drošības Inženieris (Red Team)/Information System Security Engineer (Red Team) EvolutionRiga, lv $36k–$96k3mo Conducting manual security testing, vulnerability assessment, and penetration testing for application security within a live online gaming environment.
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AI Red Teamer, Cyber 10alabsRemote $100k–$100k3mo Design and execute adversarial red team assessments to evaluate the security, robustness, and resilience of advanced AI systems and applications.
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Penetration Tester / AppSec Engineer SphynxAthens, Attica, Greece 3mo Identifying and addressing security vulnerabilities in applications and systems through penetration testing and security assessments for clients.
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Junior Penetration Tester (Cyber Analyst), Threat & Vulnerability Management - Cyber Security Division . Bank of EnglandLeeds, West Yorkshire 3mo Junior Penetration Tester supporting offensive security, vulnerability assessment, and red/purple team activities for the Bank of England's systems.
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Penetration Tester Pro Contract Jobs LtdThe City, Central London $62k–$62k3mo Conducting hands-on penetration testing across external and internal networks, reviewing system configurations, and identifying vulnerabilities within critical infrastructure.
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Penetration Tester, Vector Command, Social Engineering Specialist Rapid7UK 3mo Design and execute large-scale social engineering campaigns (phishing, vishing) to achieve initial access for continuous red teaming services.
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Cyber Security Rpctech SrlRoma, Provincia di Roma $0k–$0k4mo Cyber Security specialist supporting a partner project involving infrastructure management and software development.
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Senior Penetration Tester (US) BreachLockRemote 4mo Execute manual, methodology-driven penetration testing engagements across web applications, APIs, internal networks, and assumed breach simulations for enterprise clients.
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Penetration Tester Ocho PeopleCounty Antrim, Northern Ireland 4mo Lead penetration testing across web applications, networks, APIs, cloud environments, and mobile applications, including red team assessments and social engineering engagements.
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Security Engineer - Offensive Security StripeIreland Locations 4mo Simulate real-world adversary tactics to uncover security risks across Stripe's financial infrastructure via penetration testing and red team operations.
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Principal Penetration Tester (9 Month FTC) Allwyn UKWatford, Hertfordshire 4mo Senior penetration tester focusing on application security testing (70%) and offensive security activities (30%) to improve security depth and support purple team operations.
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?Experienced Associate - Cybersecurity Audit (m/w/d) München, BAYERN 4mo Conduct cybersecurity assessments, ethical hacking, and penetration tests across Siemens' global landscape including products, services, IT systems, factories, and software development centers.
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Red Team Security Engineer↗ Sabio GroupMadrid, MD, ES 4mo Offensive security engineer stress-testing AI-powered customer experience platforms, cloud-native services, and agentic AI systems by simulating adversary attacks.
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Manager, Cyber Resilience & Offensive Security EQ BankToronto 4mo Design, plan, and execute the bank's Cyber Resilience Testing and offensive security program (red team exercises, threat simulations) to identify continuous objectives and test enterprise cyber security controls.
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Senior Penetration Tester Arcus SearchLondon, UK 4mo Senior Offensive Security Engineer conducting hands-on penetration testing, vulnerability analysis, and security program evolution to protect systems and applications.
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Penetration Tester A-LignUK 4mo Execute comprehensive security testing across diverse industries to discover and mitigate vulnerabilities for high-profile clients.
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Penetration Tester ManulifeQuezon City 4mo Execute penetration testing engagements to assess security posture of web applications, networks, microservices, and mobile applications, identifying vulnerabilities and providing remediation recommendations.
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Senior Penetration Tester Fsp Consulting Services LimitedUK 4mo Lead penetration testing engagements and deliver high-impact technical security projects to safeguard clients and the organization.
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Risk Services - Cybersecurity Testing Assistant Associate - 2026 Intake PwCSingapore 4mo Support offensive security testing engagements including Vulnerability Assessment and Penetration Testing (VAPT), Host Configuration Review (HCR), Source Code Review (SCR), and Red Teaming to identify and validate vulnerabilities.
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Penetration Tester - Contract BishopfoxREM 4mo Conduct offensive security assessments and penetration tests to identify vulnerabilities in web applications, cloud environments, mobile apps, and AI/LLM systems for Fortune 100 clients.
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Senior Penetration Tester Instil SoftwareBelfast, Northern Ireland 4mo Delivering high-quality penetration testing across web applications, networks, cloud environments, and APIs to identify and remediate real-world security risks for diverse clients.
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Offensive Security Engineer BitpandaRemote 5mo Who we are: We simplify wealth creation. Founded in 2014 in Vienna, Austria by Eric Demuth, Paul Klanschek and Christian Trummer, we’re here to help people trust themselves enough to build their financial freedom — for now and the future.
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Member of Technical Staff (Offensive Security Engineer) PerplexitySan Francisco 5mo Plan and execute red team operations, penetration tests, and attack simulations across cloud infrastructure, web/mobile applications, and AI/ML systems to find vulnerabilities before adversaries.
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Senior (Staff) Penetration Tester SnowflakePL-Warsaw-Lixa C 5mo Senior penetration tester responsible for breaking software, systems, and networks across diverse cloud environments to find vulnerabilities and exploit bugs.
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Senior Security Engineer - Red Team (Remote) Insider OneRemote 5mo Conducts offensive security operations including web/mobile penetration testing, threat analysis, and social engineering assessments to secure Insider One's marketing and customer engagement platform.
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Penetration Tester SggovterpIMD - Mapletree Business City, MBC BLK 10 6mo Design and deliver penetration testing programmes, research attacker TTPs, and present findings to stakeholders.
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Offensive Security - Penetration Tester RsmToronto $62k–$62k6mo Perform security assessments, manual penetration testing, and develop remediation recommendations for web applications, network devices, and cloud systems.
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Graduate Cyber Security Consultant/Penetration Tester Bpm TechEaston, Bristol $28k–$28k6mo Conducting vulnerability assessments and penetration tests on client systems to identify security weaknesses and provide actionable recommendations.
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Security Engineer - Pentester ScalewayRemote 6mo Conduct web, API, network, and infrastructure penetration tests to simulate cyberattacks, identify vulnerabilities, and improve the security posture of Scaleway's cloud products and services.
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