Penetration Tester Jobs

Senior Penetration Tester / Penetration TesterALPHASEC

This role is for a security professional passionate about securing digital landscapes and with expertise in offensive security testing. You will conduct technical security assessments and penetration testing across various domains.

Penetration TesterImetris Corporation

Planning and executing penetration tests across various platforms is the core of this role, which aims to strengthen the company's cybersecurity posture.

Penetration TesterRuptura InfoSecurity

Penetration Tester is an exciting opportunity to join the Offensive Security team, helping organizations identify and reduce cybersecurity risk through high-quality penetration testing, security assessments, and consultancy services.

This role offers an exciting opportunity to work on high-profile client engagements while deepening skills and broadening impact on the security community.

Penetration TesterHackLabs

This role involves conducting sophisticated and rigorous security assessments designed to mimic the actions of real-world adversaries as a critical part of the offensive security team.

Penetration TesterNext Generation Technologies Global Inc.

This role involves conducting and supporting mobile penetration testing on enterprise network assets, preparing reports on findings, and recommending remediation strategies. It suits a candidate with advanced security knowledge and experience in risk and vulnerability assessments.

Penetration TesterAleph

This penetration testing role focuses on real security research across various environments, including web, infrastructure, cloud, AI, and mobile. It involves understanding how systems work, challenging assumptions, and conducting in-depth security research rather than just running tools.

Penetration TesterOnDefend

OnDefend is seeking an Application Penetration Tester who enjoys digging into applications, APIs, and supporting technologies to identify security weaknesses and help clients understand their risks.

Penetration Testergovernment-owned company

This penetration tester role involves conducting comprehensive security assessments for a government-owned company. The position focuses on identifying vulnerabilities across various systems, including web applications, backend infrastructure, and cloud environments, and providing actionable…

Driving the security of critical banking applications and platforms through hands-on offensive testing is the core of this role. As an Assessments & Exercises Vice President in the Cybersecurity and Technology Controls organization, you will play a key role in safeguarding the firm’s most vital…

Penetration TesterCitation Cyber

This role is for a Security Consultant specializing in penetration testing, working as part of a team to deliver technical security assessments for clients.

Understanding how systems work and finding ways to compromise them is at the core of this role. You will help clients and partners uncover security vulnerabilities, understand their impact, and close them.

Penetration TesterWorkstreet

This role involves assessing the security of applications, networks, and systems through structured penetration testing and vulnerability assessments. You will identify weaknesses, document findings, and provide actionable recommendations to strengthen clients’ security defenses.

Penetration TesterBridge IT Engineering

This role involves leading complex penetration testing, vulnerability assessments, and cyber security assurance activities for a major Federal Government department.

Penetration TesterFIT Cybersecurity

This role involves testing client's internal and external networks, web applications, and APIs as a Penetration Tester. You will provide debriefing to both client technical and executive teams on security assessment findings, solve challenging technical problems, and build creative…

Penetration TesterBupa

This permanent role is critical in identifying, assessing, and mitigating security vulnerabilities within Bupa's applications, networks, and IT systems.

Penetration TesterIT services business

This role involves hands-on security testing and helping clients understand vulnerabilities and their remediation. You will scope and deliver security assessments, perform infrastructure and web application penetration testing, and support Cyber Essentials and Cyber Essentials Plus assessments.

Penetration TesterSoftware Secured

This role involves helping clients secure their mission-critical applications by performing security code reviews and various security tests.

Penetration TesterCMA CGM Group

This role is for a deep technical security expert, accountable for delivering penetration tests to enhance the software and infrastructure security of the CMA CGM Group.

Penetration TesterNinjaOne

Penetration testing is a key part of NinjaOne's core security team, with visibility across the entire organization, from individual developers to executive leadership.

Penetration TesterHarrington Starr

This engineering job involves providing security architecture, vulnerability, and risk assessment for a global multi-billion pound business. The role suits a Vulnerability and Penetration Testing Engineer who will join the Belfast Centre team.

Penetration TesterPeoplefy

This role is for a Penetration Test Engineer with experience in network and application penetration testing. The engineer will be responsible for identifying, validating, and reporting security vulnerabilities across various IT assets.

Penetration TesterOCH Technologies

This role involves executing network, system, application, and specialized penetration tests against FAA infrastructure under the direction of a lead.

Principal Penetration TesterAltus Consulting

The Principal Penetration Tester spearheads the company's penetration testing initiatives, playing a crucial role in safeguarding critical digital infrastructure.

This penetration testing role involves ensuring the security of web-based applications across all their aspects, from the user interface to the database and web services.

Penetration TesterHaystack

This role involves performing live penetration tests for clients, developing mitigation strategies for identified vulnerabilities, and ensuring the survivability and resiliency of customer systems.

Penetration TesterHytech

This role involves conducting in-depth penetration tests on various systems and infrastructure to identify vulnerabilities and enhance the company's security posture.

Penetration TesterHandshake Networking Ltd

Penetration testing and vulnerability assessments are the core of this role, which involves advising clients on security strategy and executing tests. The position suits an experienced information security or IT audit professional with a background in penetration testing.

Penetration TesterDataStaff Inc.

A Penetration Tester with a focus on Java application security is sought to identify, exploit, and fix vulnerabilities in Java applications to guard against cyber threats.

Penetration TesterUpcoMinds

This role involves working as a Penetration Tester on NATO projects, leading or participating in Red/Blue Teams during military exercises. The position focuses on providing web, infrastructure, and application-level penetration testing, as well as security design reviews and consultancy to ensure…

Penetration TesterGFT

This role is for an experienced Penetration Tester who will conduct penetration tests and technical vulnerability assessments on applications, networks, and systems.

This role focuses on identifying and validating security vulnerabilities through hands-on laboratory testing, evaluating device security configurations and controls, and providing actionable, risk-based remediation recommendations to clients.

This role involves identifying, validating, and documenting security vulnerabilities within authorized testing environments. The Penetration Tester converts technical findings into clear evidence and remediation recommendations, working within the Louvreblanc Group.

Penetration TesterCommBank

This role involves delivering hands-on penetration testing across various technologies, including cloud, platforms, networks, SaaS, and emerging AI-powered systems.

Penetration TesterOverIT

This role involves simulating real-world cyber attacks, identifying security gaps, and strengthening an organization's overall security posture.

Penetration TesterProfectus

Leading penetration testing and simulated attack exercises within an Australian Government agency is the core of this role. You will test enterprise web applications, mobile platforms, and infrastructure, and lead a team of testers through scoping, testing, and reporting.

Penetration Tester / Red Teamernull

This mid-level position involves hands-on penetration testing and red teaming, supporting security testing in customer environments, validating findings from AI agents, and enhancing product and research capabilities.

Penetration Tester - HybridMatch Profiler

This penetration testing role involves performing offensive security activities for a client's team, with a focus on web, mobile, and API applications.

Penetration TesterHelius Technologies

This role involves hands-on penetration testing, vulnerability management, and application security within a dynamic environment. The Penetration Tester will be responsible for assessing and triaging vulnerabilities, coordinating remediation efforts, and ensuring the closure of…

Penetration Testeropensourced.tech

This is a hands-on technical role for an experienced Penetration Tester / Offensive Security Consultant to join a growing cyber security business.

Penetration TesterCognisys

This role involves delivering and supporting security assessments across various client environments, including networks, applications, and cloud infrastructure.

Penetration TesterLeidos

This is a full-time, on-site position at Leidos in Huntsville, AL, performing live penetration tests for customers and conducting deep-dive preparatory analysis for systems under test.

This role involves simulating real-world attacks to identify, assess, and exploit security vulnerabilities with a hacker mindset. You will be part of a fast-paced security team, expected to think like an adversary while maintaining ethical standards and compliance.

Penetration testing on ATM systems is the core of this role. The ideal candidate will have hands-on experience with ATM/POS testing and related protocols and tools.

The Penetration Tester is a remote review role focused on evaluating AI outputs for penetration tester specialist operations workflows.

Penetration TesterAccenture Federal Services

Planning, coordinating, and executing a modern and scalable penetration-testing program is the core of this role. The Penetration Tester will unify testing activities across network, application, and cloud environments, ensuring consistent execution, standardized reporting, and…

Penetration TesterPT. Magnus Sedaya Selaras

This role involves identifying security vulnerabilities, assessing risks, and providing actionable recommendations to improve the security posture of clients' IT infrastructure and applications. The successful candidate will join a cybersecurity team focused on ethical hacking practices.

Penetration TesterREX Cyber

This is a fantastic opportunity for a technically strong and ambitious Penetration Tester to join a growing security team, working on a diverse range of projects for clients across multiple industries.

Penetration TesterOculusIT

This role is for an Associate Penetration Tester who is highly motivated and passionate about building a career in offensive security. It is designed for early-career cybersecurity professionals with a strong technical foundation, curiosity, and a willingness to learn advanced penetration testing…

Penetration TesterKoniag Government Services

This role supports authorized cybersecurity assessment initiatives for KOS and a government customer. It involves conducting penetration testing on various systems, performing vulnerability assessments, and developing test plans.