1 to 25 of 33 Permanent Offensive Security Jobs in England

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 ❯

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 ❯

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 ❯

Senior Cyber Security Engineer Are you a passionate Cyber Security Engineer with hands-on experience in deploying Microsoft security solutions and supporting clients with robust threat protection strategies? This is a unique opportunity to join a well-established, award winning Managed Services Provider (MSP), known for its strong reputation in the UK tech market, to help deliver … cutting-edge security solutions This role is ideal for someone who thrives in a fast-paced, client focused environment, is technically strong across Microsoft Security products, and wants to be part of a growing Cyber Security function embedded in a collaborative and ambitious team. As a Cyber Security Engineer you will be Technically hands-on and … confident working across client-facing and internal delivery environments and be passionate about cyber security innovation and best practices. To be considered for this role you must have A minimum 2 years experience in a Cyber Security role (ideally within an MSP or consultancy environment) Excellent knowledge of Microsoft Defender suite including: XDR, Microsoft Defender for Endpoint, Business 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 ❯

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 ❯

Senior Cyber Security Engineer Excellent opportunity for an experienced Cyber Security Engineer with MSP experience to join a high-performing team delivering security solutions across Microsoft technologies and supporting compliance frameworks. Full-time, permanent position based in London with hybrid working (3 days in office, 2 remote), offering up to £60,000 depending on experience. Immediate start … available - candidates with hands-on Microsoft Security experience and relevant certifications are highly encouraged to apply. To apply, please email Who are the client? Our client is a recognised UK-based Managed Services Provider with strong accreditations and a reputation for excellence in technology and employee development. They are an IASME certification body and work with a broad client … base across sectors to deliver robust cyber security strategies. The company is growing and offers an outstanding culture of innovation, development, and recognition. What will you be doing? This senior, client-facing cyber security position is ideal for someone who enjoys both technical implementation and supporting security frameworks such as Cyber Essentials. You will play a key 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 ❯

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 ❯

The team you'll be working with: Consultant - Offensive Security Testing Role Overview: We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus on threat intelligence and attack methods. The ideal candidate will manage and conduct advanced penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across various environments … applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial tactics, excellent communication skills, and the ability to provide strategic, actionable recommendations to enhance our clients' security posture. What you'll be doing: Responsibilities: Lead and manage the full lifecycle of complex penetration testing engagements, applying a threat intelligence-led approach. Execute advanced penetration tests across … and schedule testing engagements based on threat assessments and client needs. Produce clear, detailed reports with technical findings, business impact, and strategic remediation recommendations for diverse audiences. Communicate complex security concepts and threat insights effectively to technical and non-technical stakeholders. Collaborate with client IT and cybersecurity teams to improve security protocols and address vulnerabilities. Monitor remediation efforts More ❯

A global quantitative trading firm specializing in algorithmic and high-frequency trading (HFT) is hiring a Cyber Security Engineer (2-4 years' experience) to operate in a broad, vendor-agnostic security environment. This fully onsite role (5 days per week) offers exposure to cutting-edge security challenges across multiple domains. This is an opportunity to deep-dive … into security engineering, incident response, and automation in a high-impact role. If you're a technically strong, hands-on engineer looking for broad exposure and real security challenges, we want to hear from you! Responsibilities Owning security projects end to end - from design to execution Engineering, automating, and securing infrastructure, networks, and cloud environments Hands-on … engagement in Incident Response, security assessments, and remediation Working across networking, firewalls, and security (Palo Alto, Fortinet, all major cloud providers) Building and automating with Terraform, Ansible, Golang, Python, HashiCorp Leveraging offensive security knowledge (OSCP, Hack The Box, pentesting, SQL injection, homelabbing) Collaborating with multiple teams and communicating effectively across the business Skills & Requirements Security More ❯

for electrifying their homes, shifting usage to off-peak hours, and supporting grid stability-critical for scaling AI and energy-intensive industries. We're looking for a Chief Information Security Officer (CISO) to lead our company-wide security strategy. You'll protect our infrastructure, digital assets, and customer data while enabling fast, secure growth. Key Responsibilities Security Strategy & Leadership Define and lead Fuse's security strategy across infrastructure, applications, and data. Lead hands-on development of security roadmaps, maturity models, and control frameworks tailored to Fuse's risk profile. Directly contribute to architecture reviews, threat modelling sessions, and key design decisions across product and platform teams. Build and mentor a high-performing security team, including hiring, coaching, and managing performance. Develop KPIs and reporting structures to measure and communicate security posture to leadership and the board. Advise the executive team on security risks, regulatory exposure, and investment priorities to support long-term growth. Governance & Compliance Own company-wide security governance, including data protection, access control, and insider risk. Ensure More ❯

C Cyber Security Tech Lead Taking the lead role as a Cyber Security Consultant you will be principally responsible across both the functional and technical Security aspects of the organisations. O verseeing response to critical incidents and threats , working closely with the SOC team and Head of Security teams on tactical and also strategic development of … the growing Security Function of the top tier business. With an emphasis on Project related work I am looking for someone that has a strong all round Cyber security background with an emphasis on experience with the delivery of one or more of the following ISO2700x, Cyber Essentials, CIS, NIST , and emerging UK government cybersecurity initiatives. Demonstrable knowledge … of cybersecurity principles, theories, practices, and techniques, including offensive security . Technical knowledge and proficiency (operational and security) with Defender, Intune, Azure, and D365 . One or more of the following certifications CISSP, CISM, CISA, or CEH. Any experience in implementing and adhering to controls in a growing organisation would be beneficial especially New Territories. Also if More ❯

Location: Cambridge, UK (hybrid) with travel to the office twice per week. We are looking for an experienced Security Engineer to join our Cyber team. You will help us build out a world class incident response function that will navigate challenging security incidents, drive process improvement, develop an open culture where we grow from our mistakes as an … across all threats to our Studio and gaming environments. Please note that this position will require participation in an on-call rotation. What you'll be doing: Respond to security events, triage, perform investigations, incident analysis, and communicate clearly and efficiently to stakeholders Contribute to improving processes, procedures, and technologies used for detection and response, enabling us to improve … after each incident Develop and run tools to gather security telemetry data from cloud production systems Automate workflows and improve identification and response time for security events Build and optimize detection rules, allowing us to spend our cycles on the alerts that matter Develop runbooks and incident playbooks for new and existing detections Lead Threat hunting practices, suggest More ❯

their capabilities. Our Penetration Testers work with organisations of all sizes and types to detect and remediate vulnerabilities. They help identify areas lacking sufficient protection. The team tests the security of infrastructure and applications, conducts IT Health Checks, reviews IT configurations, identifies gaps that threat actors could exploit, and makes recommendations to safeguard assets. What you'll be doing … consultancy to internal and external stakeholders. Leading the delivery of PGI's infrastructure penetration testing. Collaborating on the design and delivery of new and existing service lines related to offensive security assessments. Supporting and often leading technical pre-sales, proposal writing, and client engagements. Coaching and supervising junior team members, including resource management, development planning, mentoring, and knowledge … transfer. Analyzing security data to identify patterns, threats, and vulnerabilities. Producing high-quality technical reports that explain vulnerabilities in non-technical language for stakeholders. Performing quality assurance and peer reviews of project reports. Collaborating with colleagues on internal or client projects. Contributing to technical training and development materials. Supporting technical delivery projects to ensure successful outcomes. Mentoring security More ❯

Cyber Security Trainer - Penetration Testing Remote | £25-£35/hour | 3-Month Contract | Outside IR35 Evenings Only | 16 Hours/Week | Monday to Thursday, 6pm to 9pm Are you a cyber security professional with real-world penetration testing experience? Do you enjoy breaking systems, thinking like a hacker, and teaching others how to defend against it? We are … recruiting a Cyber Security Trainer to deliver a hands-on, penetration testing-focused training course to adult learners and career changers. What You'll Do: Teach live, online sessions focused on penetration testing , vulnerability scanning , and ethical hacking Help learners understand core cyber principles and real-world offensive security techniques Deliver engaging and accessible training sessions remotely … Monday to Thursday, 6pm to 9pm (12 hours teaching, 4 hours planning per week) What We're Looking For: Hands-on experience with penetration testing , network security , or ethical hacking Experience teaching or mentoring others in a technical environment Must have the right to work in the UK This is an exciting chance to use your expertise to help More ❯

on threat intel and adversary emulation. Deep understanding of OT/IT systems, common vulnerabilities, network protocols, cryptography, and attack vectors. Proficiency in tools and frameworks used in both offensive security and threat intelligence. Proven ability to scope, manage, and deliver complex engagements with excellent communication across technical and non-technical stakeholders. CREST CRT/CHECK (or higher … Clearance. Desirable Skills: Experience with Breach Attack Simulation tools and vulnerability management processes. Familiarity with ISO 27001, risk management frameworks, and compliance-oriented testing. Hands-on knowledge of cloud security in AWS, Azure, or GCP. Advanced cybersecurity certifications such as CISM, CISSP, CREST CCT, or ECSA. Location: London-Based Hybrid/Remote Options Available Benefits: Work in a high … impact role where your expertise directly influences the resilience of major organisations. Join a collaborative, technically elite team focused on cutting-edge offensive techniques and driving genuine security improvements. Salary: Up to £90,000 Per Annum (Basic More ❯

in which we work and live. It is personal to all of us." - Julie Sweet, Accenture CEO In our team you will: Gain exposure to diverse industries and advanced security architectures, as you lead sophisticated simulated cyber-attacks against our globally renowned clients, employing the very latest threat actor tools and techniques. Work closely with top-tier security experts in our threat intelligence and incident response teams, strengthening your already strong offensive security skills and pushing the boundaries of cybersecurity innovation. Engage in ongoing training, certification and conferences to stay at the forefront of the cyber security landscape, equipped with the latest tools and methodologies. Contribute to enhancing the cybersecurity resilience of some of … CBEST, TIBER, iCAST or similar assessments. Qualification Set yourself apart: Prior experience in a consultancy role would be advantageous, but not essential. Experience of leading and managing teams of security professionals. Experience in blue team, purple team or defensive security roles is also beneficial. What's in it for you At Accenture in addition to a competitive basic More ❯

Are you looking for an exciting new opportunity? Join a trusted security and compliance partner offering comprehensive services including GRC consulting, CREST-accredited penetration testing, and an industry-leading vulnerability management service. As the number one Global Service Partner of Vanta, the company has a proven track record of helping hundreds of businesses from tech startups to global industry … leaders achieve their security compliance goals, including SOC 2 and ISO 27001. With a focus on delivering trust and excellence, it ensures that companies of all sizes can effectively manage their security posture and compliance needs. If you would like to learn more about this opportunity, feel free to reach out and apply today! Responsibilities: Work across the … penetration testing and red teaming Contribute to client relationships and leading high-level engagements Scoping and delivering advanced red team assessments Mentoring more junior team members Supporting innovation through offensive security research Required Skills/Qualifications: Minimum 7 years of penetration testing experience, with at least 4 years in red teaming Strong hands-on background across a range More ❯

Are you a cybersecurity enthusiast with expertise in penetration testing across infrastructure, web applications, mobile, and cloud environments? A Penetration Tester is needed to deliver high-quality security assessments and support clients in identifying and addressing vulnerabilities across their technology landscape. Based near Doncaster or Manchester, this role involves hands-on penetration testing across infrastructure and applications, contributing to … technical reporting, and working closely with a skilled cybersecurity team on a variety of engagements. Ideal for someone with a strong interest in offensive security and a solid foundation in network, web, or cloud testing. Looking to deepen your expertise and work on meaningful security challenges? Apply now to be part of a team delivering real impact. … Key Responsibilities: Conduct penetration testing on infrastructure, web applications, mobile platforms, and cloud environments to uncover vulnerabilities. Analyze testing outcomes and provide actionable recommendations to improve security measures. Collaborate with cross-functional teams to develop and implement security strategies. Stay updated on emerging cybersecurity threats and adapt testing methodologies accordingly. Skills & Requirements: Proven experience in penetration testing for More ❯

HackerOne is a global leader in offensive security solutions. Our HackerOne Platform combines AI with the ingenuity of the largest community of security researchers to find and fix security, privacy, and AI vulnerabilities across the software development lifecycle. The platform offers bug bounty, vulnerability disclosure, pentesting, AI red teaming, and code security. We are trusted by More ❯