26 to 50 of 122 Offensive Security Jobs in the UK

next generation of digital health – AI-powered, privacy-first, clinically backed – to help our users know their body better. The job This role unites Security and Infrastructure under a single organizational mandate to ensure security practices align directly with rapid engineering execution and platform scalability.Flo Health protects … over 80 million monthly active users, holding ISO 27001 and ISO 27701 certifications alongside privacy-first features such as Anonymous Mode. The VP of Security & Infrastructure is accountable for maintaining and elevating these security, privacy, and architectural standards across the organization. We are building organisation where secure ...

qualify for diverse spending goals and are committed to economic inclusion. Find out how TripleLift raises up the programmatic ecosystem at triplelift.com.OverviewThe Senior Application Security Engineer plays a critical role in driving secure software development and application security maturity within TripleLift's Engineering and Security organization, directly … platforms and the trust our publishers and advertisers place in us. In this position, you will partner closely with Engineering, Platform, Cloud Infrastructure, and Security teams to shape secure coding practices, application security tooling, vulnerability remediation, and CI/CD security, ensuring security is embedded into ...

part of the UK Security Operations (SecOps) team in Google Public Sector, you will deliver, operate and secure private cloud services. Your aim is to provide the flexibility, reliability, and scalability of public cloud for customers with exceptionally high security requirements that can only … with Google product teams to continually improve our technology. In this engineering-centric role, you will require deep technical expertise in cloud environments, Kubernetes security, and platform automation. You will work closely with Incident Response, Platform Engineering and Security Architects to ensure that security validation and defensive ...

client is a global technology company. As a part of the UK Security Operations (SecOps) team in our Public Sector, you will deliver, operate and secure private cloud services. Your aim is to provide the flexibility, reliability, and scalability of public cloud for customers with exceptionally high security … client product teams to continually improve our technology. In this engineering-centric role, you will require deep technical expertise in cloud environments, Kubernetes security, and platform automation. You will work closely with Incident Response, Platform Engineering and Security Architects to ensure that security validation and defensive hardening ...

Meta's Security Engineering team is seeking a Security Engineer to help protect billions of users and Meta's global infrastructure from evolving threats. In this role, you will conduct security assessments, vulnerability research, and threat modeling across Meta's products and systems — spanning mobile applications … platforms, backend services, and internal infrastructure. You will identify systemic security gaps, drive mitigations at scale, and partner with engineering teams to embed security best practices into the software development lifecycle. Your work will directly reduce risk for Meta and its users by turning one-off security ...

where everyone can thrive. Through teamwork and collaboration, we’re building a stronger, more resilient Stantec every day.Your OpportunityThe Senior Ethical Hacker will conduct security assessments on web applications and cloud services by emulating real-world attacks using the Mitre Attack Framework. Their goal is to identify security weaknesses, help prevent data breaches and enhance the security posture by uncovering vulnerabilities, misconfigurations, and risks proactively before they are discovered by threat actors.Your Key ResponsibilitiesCommunicationCollaborate with cross-functional teams (security, engineering, cloud and network operations).Create reports and communicate findings to various technical teams, architects ...

heard, your development is supported, and your work feels meaningful, you will feel at home at Ricoh. We're looking for an Application Security Consultant to join our Cyber, Risk & Security team and play a key role in strengthening application security across Ricoh Europe. This … opportunity to work at the intersection of software engineering, cybersecurity and risk , helping our teams adopt a genuine shift-left approach and making security part of the development lifecycle from design through to deployment. You'll work across both our internal IT environment and customer-facing products and services ...

considered, you must have AI & Advanced Threat Defence experience (purple or blue team) Job Title Security Purple Team Lead - Blue Team, AI & Advanced Threat Defence - Contract Contract Length 2 months initial Overview We are seeking an experienced Security Purple Team Lead to join a major cybersecurity programme within … this is a Purple Team role, the current requirement has a stronger emphasis on Blue Team activity. The successful candidate will bring strong defensive security experience across threat detection, detection engineering, threat hunting and security operations, while having sufficient understanding of offensive security and Red Team ...

Role As our first Sales Engineer in the UK, you'll be the technical force behind enterprise security sales. You'll partner with Account Executives to win complex deals, lead deep technical discovery, and demonstrate how Artemis solves real security problems for SOC analysts, security engineers … CISOs. You'll architect proofs-of-value, navigate procurement and security reviews, and serve as the trusted technical advisor from first call through close. This is also an opportunity to shape how we build our technical go-to-market practice in the UK market—you'll help establish playbooks ...

Beachcroft in Bristol is seeking an experienced Cyber Security Offensive Specialist to join the Technology team. You will identify and assess security risks before exploitation, perform penetration testing, and lead adversary simulations to strengthen the firm's cyber resilience. Reporting to the Head of Cyber Security, you will develop offensive security capabilities, create scripts and tooling, and work with IT and business units to prioritise remediation and improve security controls #J-18808-Ljbffr ...

Quorum Cyber, established in Edinburgh, seeks an experienced security leader to drive advanced offensive security programs. You will design and execute complex engagements across networks, applications, and cloud, while building agentic AI to scale testing. The role emphasizes autonomy, rigorous reporting, and client-facing impact. Ideal candidates … bring 7+ years in offensive security, strong Python and AI tooling experience, and a track record turning automation into managed services. #J-18808-Ljbffr ...

Littlefish Group is seeking an experienced Offensive Security Consultant to join our growing cyber security practice. You will deliver web app, API and network penetration testing engagements for clients across sectors and lead client-facing assessments. You will produce detailed reports, support scoping and pre-sales … collaborate with internal teams to improve offensive security methodologies while staying up to date with emerging threats and attack techniques. #J-18808-Ljbffr ...

WatchTowr Pte. Ltd. is seeking an Engineering Lead for its Cyber Engineering Squad. This role involves leading a team in tackling complex security challenges while providing mentorship and guidance. You will architect and enhance our offensive security capabilities, working closely with teams across the UK and Singapore. … Ideal candidates will have a proven track record in leading engineering teams, building offensive security solutions, and a strong expertise in programming languages like Python and Go. This is a dynamic opportunity to contribute actively to a fast-growing cybersecurity organization. #J-18808-Ljbffr ...

Klarna is seeking an experienced Offensive Security Engineer to perform penetration testing across internal and public-facing systems. You will triage Bug Bounty submissions, analyze variants, and assess third-party integrations within Klarna's AWS microservice stack. You will build tooling and provide hands-on guidance to developers … teams. You will bring strong coding insight for Java and Node.js, and you’ll participate in training and workshops to spread offensive security practices #J-18808-Ljbffr ...

Description - Threat Research Engineer Security Lab, HP Labs, Bristol, UK We have an exciting opportunity to join the HP security team, to study current and emerging endpoint device attack trends, educate internal and external stakeholders on cyber threats, and help influence HP's security research and innovation … strategy. Our HP Security Lab is recruiting an experienced Threat Research Engineer to focus on researching, analysing, explaining, and reporting emerging threats affecting modern endpoints, from OS-level malware, to hardware and firmware attacks. The role combines hands-on technical analysis of malware with the ability to communicate complex ...

Security Engineer (JavaScript/TypeScript) London/Remote to 80kDo you have expertise with web security combined with strong JavaScript/TypeScript coding skills You could be progressing your career at a global leader in Computer Vision, AI and biometric identity, whose technology protects governments, critical infrastructure … some of the world's largest enterprises against identity fraud, deepfakes and sophisticated cyber threats.As a Web Security Engineer you'll collaborate closely with the web development team to ensure security is at the centre of all web based applications. Joining a specialist security team ...

experiences to advance social technology. Instagram и Facebook принадлежат компании Meta Platforms Inc., деятельность которой признана экстремистской и запрещена на территории РФ Задачи: Conduct security assessments, penetration testing, and vulnerability research across web, mobile, and backend systems to identify and remediate risks Perform threat modeling and security architecture … reviews for products and infrastructure Identify systemic security gaps and drive scalable, cross-functional mitigations Develop and improve security tooling, automation, and detection capabilities Collaborate with product and infrastructure engineering teams to define security requirements and integrate security controls into the software development lifecycle Lead complex ...

Title: Opportunities in Cyber Security - eDV Required Location: Malvern, England, United Kingdom Role Type: Permanent Full Time Package: Competitive Salary + Benefits At QinetiQ, we’re not just imagining tomorrow; we are creating it. Our mission is to empower and protect lives. The Role: As a Cyber Specialist … solutions to complex problems, including planning and executing advanced red team engagements, simulating real‐world attack scenarios to assess and enhance the organisation’s security posture. Your responsibilities will include: Identifying and exploiting vulnerabilities in infrastructure, applications, and operational processes Developing realistic attack scenarios, leveraging tactics, techniques, and procedures ...

sandboxing, permission models, anti-tampering - and someone has to attack them before someone else does. That's you. You’ll work as an offensive security specialist focused entirely on Klarna's mobile surface. You’ll run penetration tests and red-team exercises against the apps, reverse-engineer builds … find what static review misses, and use the OWASP Mobile Application Security Verification Standard (MASVS) and Testing Guide (MASTG) as your working framework rather than a checklist you fill in after the fact. You’ll work closely with the engineering teams who build and harden the apps, turning what ...

seeking a Product, Application and Offensive Security Engineer to embed security into the design, development, testing, and operation of DTS products and platforms. You will work with product and engineering teams to review designs, assess APIs, run threat models, test systems, and remediate issues. You will lead … secure SDLC efforts, perform threat modelling, and conduct offensive security testing across APIs, data products, and integrations, including AI-enabled capabilities. #J-18808-Ljbffr ...

join its permanent, fully remote team in the UK. This senior-level role focuses on building intelligent AI agents that can plan, reason, operate security tooling and identify exploitable vulnerabilities within controlled environments. Key Responsibilities: Design, build and deploy AI agents that automate penetration testing, including planning, tool … reasoning over security findings Develop sandboxed cyber-lab and range infrastructure using containers and Kubernetes Deliver AI features from initial design through to production, including evaluations, guardrails and monitoring Improve agent performance through prompt engineering, tool orchestration, evaluation and token and cost optimisation Integrate security tools and enable ...

Shape the future of cyber security. Protect what matters most. This is more than an architecture role. It's an opportunity to shape security strategy for major organisations, influence critical business decisions, and work at the forefront of cyber security innovation. If you're passionate about reducing risk … improving resilience, and delivering secure digital transformation at scale, we'd love to hear from you. Are you a seasoned Security Architect ready to influence enterprise-scale transformation? This is your chance to lead from the front, helping clients tackle complex cyber challenges while embedding security into ...

Description: We are looking for a hands‐on Hardware Security Engineer to support the security of SoC hardware platforms. This role is part of the Arm Product Security team and focuses on identifying problems in silicon level security features, understanding their impact, and working in partnership … with architecture and silicon teams to help improve the overall security of our platforms. In this role, you will chip in through detailed technical analysis, proof‐of‐concept demonstrations, and tooling that supports the assessment and improvement of hardware security features across sophisticated SoC platforms. You will work ...

Cyber Security Consultant (Penetration Tester) Department: Cyber Employment Type: Permanent - Full Time Location: City, London Compensation: £45,000 - £55,000/year Description Moore Kingston Smith is seeking an experienced Cyber Security Consultant specialising in penetration testing to join our client-facing advisory team. You will join … NCSC-recognised cyber security team within our Risk Advisory practice, supporting a diverse portfolio of clients across multiple sectors. This is a hands‐on role focused on delivering penetration tests across web applications, APIs, and internal and external network infrastructure. You will also support Cyber Essentials Plus assessments ...

Staff/Senior Staff Security Engineer, Vinted Pay London, United Kingdom Vinted Marketplace Brief info about Vinted Our mission is to make second-hand the first choice, and we're looking for people who want to help us get there. Every day, we work together to help our members … grown with offices across Europe, supported by a team of over 2,000 people. Information about the position As Staff/Senior Staff Security Engineer in Vinted Pay, you will be the staff‐level security engineer inside our regulated payments business - and the person who makes Vinted ...