1 to 25 of 62 Offensive Security Jobs in the UK

Offensive Security Senior Manager page is loaded Offensive Security Senior Manager Apply locations Kingston Head Office time type Full time posted on Posted 4 Days Ago time left to apply End Date: August 15, 2025 (9 days left to apply) job requisition id R-80651 Please Note: The deadline for applying is 23.59 the day before … the job posting end date. Job Title: Offensive Security Senior Manager Business Function: Cyber Security Location: Kingston Head Office Unilever is one of the world's leading suppliers of Food, Home, and Personal Care products with sales in over 190 countries and reaching 3.4 billion consumers a day. Unilever has more than 400 brands found in homes … diverse businesses and increasing representation of diverse groups in our advertising. Find out more about our commitment to equity, diversity, and inclusion on our website . Unilever's Cyber Security team is a global, product-led function aligned to the NIST Cyber Security Framework. We deliver capabilities across governance, protection, detection, response, and recovery to safeguard our people More ❯

Please Note: The deadline for applying is 23.59 the day before the job posting end date. Job Title: Offensive Security Senior Manager Business Function: Cyber Security Location: Kingston Head Office Unilever is one of the world's leading suppliers of Food, Home, and Personal Care products with sales in over 190 countries and reaching 3.4 billion consumers … diverse businesses and increasing representation of diverse groups in our advertising. Find out more about our commitment to equity, diversity, and inclusion on our website . Unilever's Cyber Security team is a global, product-led function aligned to the NIST Cyber Security Framework. We deliver capabilities across governance, protection, detection, response, and recovery to safeguard our people … operations, and digital assets. Operating alongside our Technology and Data teams, Cyber Security enables secure innovation and resilience across our global business. Our structure is built around product families and risk-based priorities, with teams embedded across regions and business units. JOB PURPOSE We are looking for a technically exceptional and visionary Senior Manager to lead our Offensive More ❯

Senior Consultant, Offensive Security (L3) United Kingdom and 2 more United Kingdom and 2 more Share This In a world of disruption and increasingly complex business challenges, our professionals bring truth into focus with the Kroll Lens. Our sharp analytical skills, paired with the latest technology, allow us to give our clients clarity-not just answers-in all … respecting, including, and valuing one another. As part of One team, One Kroll, you'll contribute to a supportive and collaborative work environment that empowers you to excel. Our Offensive Security professionals are on a mission to make the world a safer place, one company at a time. We believe that our work to help our clients discover … and remediate their unique security risks makes every one of us safer. Our clients trust us to use cutting-edge offensive security tools, creativity, imagination, and expert knowledge to find cybersecurity risks in their networks, systems, and software. We're looking to grow our team of offensive security experts in the United Kingdom. We test More ❯

About Bridewell One of the most exciting prospects in the UK cyber security sector today, Bridewell is a leading cyber security services company specialising in protecting and transforming critical business functions for some of the world's most trusted organisations. We are the trusted partner for operators of essential services and provide end-to-end cyber security capabilities that help our clients overcome their security challenges, allowing them to operate safely and securely. Bridewell holds the Gold level, Investors in People award which we feel solidifies and reflects on the outstanding calibre that makes us truly one team. Who are we looking for? We are looking for an experienced Project Manager who can lead and … projects at any one time, with proven experience engaging and managing relationships with various stakeholders, including clients, vendors, and internal teams. Ideally, you'll have worked with a Cyber Security services provider or within a Cyber Security function, with knowledge of Cyber Security principles, standards, and technologies desirably resulting in at least a foundation level qualification (e.g. More ❯

month contract in a Work from Office (WFO) role. This role will focus on creating a business strategy, gap analysis and implementation, for securing their Azure-based infrastructure, integrating security automation, ensuring PCI DSS compliance, vulnerability and penetration testing and incident response. This role will focus on developing and maintaining secure, scalable Azure DevOps pipelines and Infrastructure as Code … IaC) using Terraform. Their ideal candidate will have a strong background in cloud security best practices, automation, and a proactive approach to integrating security across their software delivery lifecycle. A key part of this position will also involve mentoring an internal engineer, developing structured security policies, and managing Sentinel, Defender and SOAR solutions for automated threat response. … Additionally, the role requires liaising with third-party support partners to coordinate security solutions, manage incidents, and enhance overall cybersecurity posture. Responsibilities Infrastructure Security: Architect and secure Azure-based infrastructure using Terraform, ensuring adherence to security best practices by developing, maintaining, and optimizing Terraform code. DevOps Pipeline Development and Maintenance: Design, develop, and optimize Azure DevOps pipelines More ❯

Cyber Security Consultant (Penetration Tester) Milton Keynes, Buckinghamshire, United Kingdom We are seeking an experienced Cyber Security Consultant (Penetration Tester) . Make an Impact at RSM UK At RSM, our consulting team brings together diverse advisory experts to deliver our six core solutions: business transformation, forensic, deal services, restructuring, finance function support, and risk and governance. Our solutions … our six solutions, expanding our team of expert consultants, embracing a digital-first approach, strengthening our global presence, and building strong client relationships. We are seeking an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you'll deliver offensive security services including digital footprint reconnaissance, social engineering, penetration testing, vulnerability … assessments, and more to high-profile clients across all industries. The purpose of this role is to deliver offensive security services such as digital footprint reconnaissance, social engineering, vulnerability assessments, penetration testing, threat modeling, cyber-attack simulation exercises, and more. You'll benefit from ongoing coaching, career mentoring, and support through our career pathway. You will have opportunities More ❯

a long history of creating magical moments for our customers! We're not about selling products - we want to solve problems and change lives through Monzo ️ At Monzo, our Offensive Security team is an integral part of our wider Security Collective, a passionate group dedicated to enhancing Monzo's security posture and ensuring a safer environment … advice to mitigate issues. We're also deeply committed to fostering diversity within our team, believing that a variety of perspectives makes us stronger. Leading and scaling our dynamic Offensive Security team Owning and continually improving our team's processes and methodologies Acting as the main point of contact for other teams, fostering collaboration and sharing offensive security knowledge Engaging in strategic planning for the team's long-term direction Reviewing bug bounty reports and making authoritative decisions as well as scaling the program beyond where it is now Performing hands-on security testing across a broad range of areas, from web applications to red teaming Mentoring junior team members, guiding their development and More ❯

a long history of creating magical moments for our customers! We're not about selling products - we want to solve problems and change lives through Monzo ️ At Monzo, our Offensive Security team is an integral part of our wider Security Collective, a passionate group dedicated to enhancing Monzo's security posture and ensuring a safer environment … advice to mitigate issues. We're also deeply committed to fostering diversity within our team, believing that a variety of perspectives makes us stronger. Leading and scaling our dynamic Offensive Security team Owning and continually improving our team's processes and methodologies Acting as the main point of contact for other teams, fostering collaboration and sharing offensive security knowledge Engaging in strategic planning for the team's long-term direction Reviewing bug bounty reports and making authoritative decisions as well as scaling the program beyond where it is now Performing hands-on security testing across a broad range of areas, from web applications to red teaming Mentoring junior team members, guiding their development and More ❯

Offensive Security Engineer - 100% Remote, Blockchain, DeFi About Halborn Inc Our mission is to provide value-add security services and products to the world's most cutting edge technology firms and that starts with blockchain tech. Founded in 2019, Halborn is an elite cyber security company focused on solving complex adversarial problems unique to the cryptocurrency … as new startups with high growth trajectories. Our Culture Halborn is a globally distributed team of 100+, looking to grow our elite team of white hat hackers, sales professionals, security engineers and DevSecOps specialists who value independence, want to make their own hours, work for themselves and have a passion for the ever evolving cryptocurrency industry. Our Commitment to … does not have a signed agreement with Halborn Inc. Responsibilities Conduct realistic adversary simulations from conception through reporting. Perform testing on systems, applications, networks, and processes. Research cutting-edge offensive security techniques. Develop tools and exploits. Communicate clearly and effectively, both written and orally, regarding risks and required remediations. Work collaboratively and independently on unique or specialized assignments More ❯

As the Business Information Security Officer for Risk and Brokering (R&B) you will be a crucial asset to WTW’s cyber security efforts, ensuing robust cyber security practices are embedded across the business unit and are aligned with the organisation’s overall security strategy. This role is to serve as the global trusted information security partner to the business and technology teams, supporting them to ensure security items are appropriately managed. This role is part of the extended Information & Cyber Security Leadership Team and resides within Corporate IT, reporting to the Lead Business Information Security Officer. The Role Primary responsibly is the BISO for Risk and Brokering (R&B): Serve as … a leader within the Information & Cyber Security Team, as the trusted advisor to R&B leadership, providing strategic cybersecurity insights and recommendations to ensure a cohesive approach to cyber risk management. Ensure cybersecurity practices and security by design are integrated into business unit initiatives, motivating business units to adopt efficient security controls throughout their lifecycle. Oversight of More ❯

Are you a Cyber Security professional ready to take the next step in your career? Join a forward-thinking, award-winning London-based MSP that’s at the forefront of Cyber Security services and play a pivotal role in their journey to becoming a Cyber Essentials Plus Certification Body. We’re looking for a Cyber Security Assessor … to join my client's expanding Cyber Security Projects team. If you're passionate about security, skilled in Microsoft 365 and Azure, and experienced with audits and offensive security tools, we want to hear from you. What You’ll Be Doing Conducting Cyber Security Assessments and audits across Microsoft 365 and Azure environments Performing Cyber … Cyber Essentials PLUS audits in line with IASME standards Delivering vulnerability assessments, remediation, and penetration testing across infrastructure, networks, and applications Contributing to client reporting, assurance audits, and scoping security solutions Acting as an escalation point for security-related technical queries and pre-sales support To be considered for this role you’ll need At least 2 years More ❯

Software Security Engineer Department: Tech - Security Employment Type: Permanent - Full Time Location: Oxford, UK Reporting To: Head of Information Security Description Are you ready to raise the bar on cyber security and contribute to making our flagship products cyber resilient? We are looking for a Security Engineer to join our Information Security team at … our Oxford headquarters. You will be working across software engineering, modelling, and data science bringing your full self, including your security knowledge and expertise to the business. As a Security Engineer at Aurora Energy Research, you will enable our colleagues to improve our secure software development lifecycle, ensure secure operational practices, and support compliance. You have a curious … getting smart ideas into the hands of your colleagues. You enjoy working simultaneously on various initiatives and moving between teams. You will become part of a top-notch information security team who love solving difficult problems. By joining our Information Security team, you will be part of something big and meaningful: help protect our brand and our company More ❯

the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. Our Product Security team works on secure-by-design and deep product partnership. We build strong relationships with other teams and help them build secure software. This includes reviewing early-stage designs … defense, intelligence, and commercial applications. We are trusted by our customers to protect their mission-critical information in the face of advanced persistent threats. The mission of the Application Security Team is to enable developers to be highly productive, agile, and produce the most secure software possible. Given the mission critical work that Palantir does, investments in application security have never been more important. As an Application Security Engineer, you will be hands-on and have wide-ranging impact for the security of Palantir: • Product security reviews . You will perform full-scope security reviews of our current and future product and service portfolio. This includes whitebox, greybox, and blackbox assessments. You will work More ❯

Proactive Security Lead, UK Security Operations link Copy link corporate_fare Google place London, UK Mid Experience driving progress, solving problems, and mentoring more junior team members; deeper expertise and applied knowledge within relevant area. Apply link Copy link Bachelor's degree or equivalent practical experience. 5 years of experience in cybersecurity, with an offensive security (e.g., Red Teaming, Penetration Testing, or Adversary Simulation) or threat modeling. Experience in a Security Operations Centre (SOC) or similar environment, with modern threat landscapes and attack techniques. Experience in technical troubleshooting and writing code in one or more programming languages. Experience in threat modeling methodologies (e.g., STRIDE, PASTA, or attack trees) and secure system design principles. Eligibility … to obtain UK Developed Vetting (DV) security clearance; British Citizenship is required for this role. Preferred qualifications: Certifications in OSCE3, CRTP/CRTE, GIAC GCSA/Kubernetes-related, OSCP, OSCE, CRTO, CISSP, or GIAC (e.g., GPEN, GCTI, GWAPT). Experience designing or executing Purple Team exercises, combining offensive tactics with defensive feedback to drive continuous improvement. Experience with More ❯

company to improve their return on incentives and sales planning. Come and see why Glassdoor and Comparably have recognized CaptivateIQ as a best place to work! About the role: Security is a core value at CaptivateIQ. As we scale and expand our suite of services, embedding security into every phase of product development is critical to building trust … in everything we deliver. As a Senior Security Engineer focused on Application & Product Security , you will own our AppSec strategy - driving threat modeling, secure architecture design, and offensive security testing . You will lead manual and automated penetration testing, manage AppSec tooling (SAST, DAST, SCA), and build developer enablement programs. You'll also be responsible for … vulnerability management, incident response for application-layer events, and ensuring compliance alignment for SOC 2, ISO 27001, and privacy requirements. This role blends offensive and defensive expertise with strategic influence, giving you the autonomy to shape a scalable, modern AppSec program. Responsibilities: Threat Modeling & Architecture Reviews Mature and scale a modern threat modeling program across products and services. Enable More ❯

Are you ready to take the lead in offensive security? Join a multi award winning cybersecurity provider recognised for delivering world class managed security services, CREST accredited penetration testing, and cutting edge cyber defence strategies. With a proven track record of helping organisations strengthen their security posture and stay ahead of evolving threats, the team has … become a trusted partner for enterprises across highly regulated industries, including finance, government, and critical infrastructure. The team is seeking a Lead Penetration Tester to own and elevate its offensive security program. In this fully remote, outside IR35 contract role, the position involves defining and executing end to end infrastructure and web app testing strategies, mentoring a team … and compliance requirements Advanced Assessment & Analysis - Personally conduct deep-dive tests on high-risk systems, interpret results, and translate findings into clear, actionable remediation roadmaps Continuous Improvement - Keep our offensive security playbook current -evaluate new tools, techniques and threat intelligence, and introduce enhancements to testing frameworks Stakeholder Collaboration - Engage senior engineers, architects and risk teams to align on More ❯

Summary: CCL Solutions Group is seeking an exceptional Senior Penetration Tester with CHECK Team Leader Infrastructure (CTL-INF) qualifications to join our elite team of security professionals. Location: Home based Main Job Summary This is more than just a job, we're looking for individuals with a hacker's mindset, deep technical expertise, and a relentless drive to secure … the UK's most critical assets. You will be leading engagements across secure environments, delivering high-impact assessments, mentoring team members, and shaping the offensive security direction of the business. In return, we offer a highly supportive environment with structured mentoring, paid training days, and access to advanced tooling. Main Duties & Responsibilities (other duties may be assigned): CCL … risks, remediation strategies, and technical impact. Support red team simulations, infrastructure reviews, and adversary emulation where required. Contribute to internal R&D, tooling improvements, and the development of our offensive security services. Required Skill Set & Experience: This role requires a senior and mature person who can demonstrate leadership, honesty and integrity and who expects high standards. Please understand More ❯

Cyber Security Analyst £600 - £730/Day Inside IR35 UK Remote 83 Working days, adhoc We are seeking a Cyber Security Analyst for our Government client The Home Office on a fully remote basis. This role is 86 working days from start date to Feb 2026, adhoc days as and when needed, paying between £600 - £730/Day … Cybersecurity Analyst (CySA+) or a similar certification GIAC Cyber Threat Intelligence (GCTI) or a similar certification GIAC Reverse Engineering Malware (GREM) or a similar certification Certified Ethical Hacker (CEH) Offensive Security Certified Professional (OSCP) or a similar certification*HM will accept 2 of the above qualifications* Data analysis and visualisation Understanding of Cybersecurity Concepts and Threat Intelligence Internet … infrastructure/security architecture If you are interested in the above role - Click the "Apply Now" button now for immediate review Cyber Security Analyst, Security Analyst, Security, OSCP, ETHICAL HACKER, Cyber Security Analyst, Cyber Security Analyst, DV CLEARANCE, DV CLEARED, CYBER ATTACK, Cyber Security Analyst As a member of the Disability Confident Scheme More ❯

Senior Cyber Security Architect page is loaded Senior Cyber Security Architect Apply locations Belfast Birmingham Derry-Londonderry Homeworker - UK time type Full time posted on Posted 2 Days Ago job requisition id JR_15730 Join Kainos and Shape the Future At Kainos, we're problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. … that celebrates creativity and collaboration. Ready to make your mark? Join us and be part of something bigger. Main purpose of role & level in the business: As a Senior Security Architect in Kainos, you'll be responsible for the design and application of industry leading security practices in the platforms and services we build for our customers. Our … in variety, from visa and passport processing systems tohospitalmedical record platforms and globalfinancial management andHCM systems. You'll work with Agile delivery teams to ensure that they follow good security practices throughout the software development journey. You'll learn about and apply new technologies and approaches, with talented colleagues who will help you develop and grow. You'll share More ❯

environment. Maintain quality and consistency across PTaaS deliveries through standardization, process optimization, and internal knowledge sharing. Continuously refine delivery practices by learning from each engagement and staying current with offensive security trends and tools. Contribute to pre-sales technical scoping and product discussions as an experienced technical voice within the Solutions Engineering function. What you'll bring At … on penetration testing experience across domains such as web applications, APIs, infrastructure, and mobile. Proven ability to lead and deliver penetration testing engagements in a consulting, delivery, or internal security capacity. Strong communication skills, with the ability to tailor technical content to both technical and non-technical audiences. Familiarity with PTaaS models, bug bounty platforms, and crowdsourced testing is … with internal teams and external partners. Operate with strong independence and ownership, taking initiative to deliver value with limited oversight while navigating ambiguity and evolving priorities. Genuine passion for offensive security, with a growth mindset and eagerness to learn, adapt, and evolve. Relevant certifications are highly valued, including (but not limited to): CREST: CRT, CCT-INF, CCT-APP More ❯

have an Investors in People Gold accreditation. As a certification body for the Information Assurance for Small and Medium Enterprises Consortium (IASME), they are expanding their UK based Cyber Security Projects Team and are seeking a Cyber Security Assessor as part of their growth, with a view towards becoming a Cyber Essentials Plus Certification Plus Certification body. The … Cyber Security Assessor will be primarily responsible for assisting, preparing and undertaking Cyber Security Assessments and audits across Microsoft 365 and Azure for their clients. You will work closely with both the Cyber Security and PMO team to ensure that the delivery of Security Solutions and Work Packages remain on-track. Responsibilities will also include but … Undertaking penetration testing to include infrastructure, web applications and networks Assisting with client reporting and assurance audits Undertaking Cyber Essentials PLUS audits and assessments Providing an escalation point for security engineering tasks Assisting with presales and scoping for security audits and assessments Security solution scoping including analysis and investigation of new and existing solutions The successful candidate More ❯

have an Investors in People Gold accreditation. As a certification body for the Information Assurance for Small and Medium Enterprises Consortium (IASME), they are expanding their UK based Cyber Security Projects Team and are seeking a Cyber Security Assessor as part of their growth, with a view towards becoming a Cyber Essentials Plus Certification Plus Certification body. The … Cyber Security Assessor will be primarily responsible for assisting, preparing and undertaking Cyber Security Assessments and audits across Microsoft 365 and Azure for their clients. You will work closely with both the Cyber Security and PMO team to ensure that the delivery of Security Solutions and Work Packages remain on-track. Responsibilities will also include but … Undertaking penetration testing to include infrastructure, web applications and networks Assisting with client reporting and assurance audits Undertaking Cyber Essentials PLUS audits and assessments Providing an escalation point for security engineering tasks Assisting with presales and scoping for security audits and assessments Security solution scoping including analysis and investigation of new and existing solutions The successful candidate More ❯

have an Investors in People Gold accreditation. As a certification body for the Information Assurance for Small and Medium Enterprises Consortium (IASME), they are expanding their UK based Cyber Security Projects Team and are seeking a Cyber Security Assessor as part of their growth, with a view towards becoming a Cyber Essentials Plus Certification Plus Certification body. The … Cyber Security Assessor will be primarily responsible for assisting, preparing and undertaking Cyber Security Assessments and audits across Microsoft 365 and Azure for their clients. You will work closely with both the Cyber Security and PMO team to ensure that the delivery of Security Solutions and Work Packages remain on-track. Responsibilities will also include but … Undertaking penetration testing to include infrastructure, web applications and networks Assisting with client reporting and assurance audits Undertaking Cyber Essentials PLUS audits and assessments Providing an escalation point for security engineering tasks Assisting with presales and scoping for security audits and assessments Security solution scoping including analysis and investigation of new and existing solutions The successful candidate More ❯

to bring 1B+ people onchain in the most secure way possible. We want to provide them secure platforms and tools to build and interact with exciting applications. The Protocol Security team ensures the security of all onchain development at Coinbase. We partner closely with product teams to make sure that our users can safely and confidently engage with … the onchain world. What you'll be doing (ie. job duties): Perform threat modeling and security assessments of blockchain products and services. Propose, plan, and execute Red Team operations based on realistic threats. Write detailed reports covering the goals and outcomes of Red Team operations, including significant observations and recommendations. Collaborate with partner teams to improve detection and response … capabilities. Provide expert technical guidance to the team in building new security frameworks and analysis tools. Stay informed on current security trends, advisories, publications, and academic research. What we look for in you (ie. job requirements): Bachelor's or Master's degree in Computer Science, Cyber security, Software Engineering, or a related field. 3+ years of blockchain More ❯

a varied and interesting workload, but we can nurture your inquisitive nature and help you create change in the workplace - making it better for all. Logiq Consulting are Cyber Security and Information Assurance experts. We specialise in providing leading edge consultancy to high-threat clients, as well as delivering a range of security services and products throughout the … Services, along with the maturing of our service offering as driven the requirement for this new role, SOC and Vulnerability Analyst. The role will be reporting to our Information Security Lead and sit within our Information Security Team. The ideal candidate will have current or recent experience working in a SOC environment and/or have a strong … focus on vulnerability management. Key Responsibilities: As SOC and Vulnerability Analyst you be responsible for: Monitoring the clients IT infrastructure. Monitoring Logiq IT security systems, applications and networks for irregularities and alerts which may indicate incidents, breaches and events. Investigation of alerts and incidents to ascertain the criticality and prioritisation of security incidents and vulnerabilities. Collaborate with other More ❯