Offensive security jobs in Gerrards CrossCreate job alerts

Senior Cyber Operations Analyst Do you have the skills to fill this role Read the complete details below, and make your application today. £Up To £75,000 GBP Performance Bonus Hybrid WORKING Location: UK Wide , Central London, Greater London - United Kingdom Type: Permanent Senior Cyber Operations Analyst (Associate Manager) Locations: London | Manchester | Bristol Salary: Up to 75,000 + excellent package Clearance: BPSS + SC clearance (or Eligible) Are you an experienced Cyber Security Operations specialist looking to step into a senior role within a high-growth, high-impact cyber practice? We're supporting a top-tier consulting organisation (name anonymised) that is expanding its Blue Team and looking for a technical, curious and detail-driven Senior Cyber Operations Analyst to join their team. This is a fantastic opportunity to work with cutting-edge tooling, contribute to threat-driven defensive security, and shape advanced SecOps capabilities across enterprise environments. About the Role As a Senior Cyber Operations Analyst at Associate Manager level, you'll sit at the heart of a thriving Cyber Practice covering Assurance, Compliance, SecOps, Offensive Security and Research. You'll play a pivotal part in threat detection, incident response, detection engineering, and security monitoring - helping defend major UK organisations. This role is perfect for someone who thrives in technical depth, enjoys problem-solving, and wants to contribute to a mission-driven cyber defence team. Key Responsibilities You will: • Develop, maintain and enhance detection content (primarily for Splunk SIEM) across cloud, endpoint and network platforms, • Identify detection gaps, log ingestion issues and alert improvements, • Review and uplift existing SecOps standards, logging maturity, BAU monitoring and threat-led optimisation, • Perform day-to-day security monitoring, alert triage and incident response (9am-5:30pm rota), • Investigate cyber security incidents and provide technical leadership during escalations, • Mentor junior analysts through shadowing and hands-on guidance, • Act as a technical SME during client engagements, including presenting to senior stakeholders, • Participate in alert testing, IR tabletop exercises, and readiness assessments, • Stay up to date with emerging intelligence, attacker behaviours and evolving threat landscapesAdditional (client-dependent) responsibilities may include:, • Proactive threat hunting, • Incident response playbook development, • Threat intelligence research, • Vulnerability scanning & reporting, • Threat intelligence models (Pyramid of Pain, IPCE, TI lifecycle), • Detection engineering & alert development, • Scripting skills (Python, Bash, C/C++, Java), • Core cybersecurity fundamentals: network, cloud, cryptography, forensics, • Understanding of attacker techniques, APT behaviours and network protocol abuse, • Competitive salary, • Private medical insurance, • 25 days annual leave, • 3 days paid charity leave, • Continuous learning & development opportunities, • Access to a cutting-edge cyber practice and diverse project portfolio, • 5 years continuous UK residency, • No periods of 30+ consecutive days outside the UK in that time #jawa

Hands on Head of Pen Testing | £85,000 | London, Hybrid Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below. We're working with a growing cyber security consultancy looking to hire a Head of Penetration Testing to lead and scale their offensive security capability. This is a hands-on leadership role, ideal for someone from a strong penetration testing background who wants to step into a position where they can own technical delivery, shape a team, and influence the direction of a testing practice - without stepping away from the tools. The Role: You'll take ownership of the organisation's penetration testing function, leading from the front on technical delivery, quality standards, and team development. This role is best suited to someone who is already operating as a Senior / Lead Penetration Tester or CHECK Team Leader, and is looking to step into a broader leadership position while remaining technically hands-on. You'll play a key role in defining methodologies, mentoring testers, engaging clients, and driving the growth of the penetration testing offering. Key Responsibilities: • Lead and scale the penetration testing function (people, processes, tooling), • Deliver and oversee high-quality penetration testing engagements (web, infrastructure, cloud, application), • Act as a technical authority across offensive security engagements, • Ensure consistency and quality across all reports and deliverables, • Support pre-sales, scoping and client engagements, • Mentor and develop a team of penetration testers, • Manage utilisation, capacity, and technical performance of the team, • Strong background in penetration testing (offensive security) across web, infrastructure, and cloud, • Experience operating at Senior / Lead Pen Tester or CHECK Team Leader level, • Hands-on experience delivering client-facing penetration testing engagements, • Strong reporting skills and ability to communicate findings to both technical and non-technical stakeholders Candidates must hold two or more of the following (or equivilant) • CREST CRT or CCT, • OSCP, • OSCE / OSWE, • CISSP This is an opportunity to step into a role where you can shape and lead a penetration testing function, not just deliver within one. You'll have the autonomy to influence how the practice evolves, while still staying close to the technical work that got you here. If this sounds like you, apply now! Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. xrnqpay To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

A leading AI cybersecurity firm in the UK is seeking a skilled Penetration Tester to enhance security across the digital landscape.

NTT DATA, a global leader in security services, is seeking a Offensive Security Tester to join its UK Security Practice. Offensive Security Tester / REMOTE. Background in information security or IT security operations.

Perform various types of security testing, including network penetration, web application, mobile security assessments, and social engineering. In this position, your duties will include overseeing client engagements, conducting security assessments, and presenting comprehensive reports on your disc

You’ll work at the intersection of offensive security, AI safety, and product development, collaborating with cross‑functional teams to harden our systems against evolving threats. CI/CD pipelines and GitHub security best practices. The ability to write robust tools, automate offensive workflows

A global leader in security services is seeking an Offensive Security Tester to conduct penetration testing and enhance client security postures. The ideal candidate will have 3-5 years of experience in security roles, strong communication skills, and preferred certifications like OSCP or CEH. This

NTT DATA, a global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. The ideal candidate will have a strong background in offensive security, a deep understanding of attack techniques, and excellent communication skills to deliver i

Interest in learning and staying current with offensive security technologies. Develop your offensive security skillset across varied, real-world environments. Conduct penetration testing and offensive security engagements across networks, applications and platforms.

A leading UK cyber security consultancy is looking for a Cyber Security Consultant to join their Offensive Security team. You will be responsible for delivering high-quality security assessments, producing detailed reports, and mentoring junior team members.

A leading cybersecurity firm in the United Kingdom is looking for an experienced offensive security professional to discover and exploit vulnerabilities. Don't miss this unique chance to redefine offensive security. You will work collaboratively, using your deep understanding of security to protect

The role involves assessing cybersecurity measures, conducting risk evaluations, and collaborating with various teams to ensure robust information security practices. A leading financial institution in Greater London is looking for a cybersecurity expert to join their team.

A leading cybersecurity firm in the United Kingdom seeks a Senior Offensive Security Engineer to assess application, network, and system security through simulated cyberattacks. Responsibilities include managing vulnerabilities, collaborating with internal teams, and establishing communication with

This fully remote role is ideal for a player-coach who enjoys tackling offensive security problems. Xact Placements Limited is seeking an Engineering Lead (Cyber) for a high-growth cybersecurity scale-up. You will lead the Cyber Engineering team, guiding the future direction and architecting the sec

Relevant security qualifications (such as OSCP, CREST CRT, OSEP, CCT or relevant Social Engineering exams/training). A passion for security and networks.

The ideal candidate will have over 7 years of offensive security experience and deep understanding of AI/ML security risks. A leading AI technology firm in Greater London is seeking a Security Researcher to enhance the security of its innovative AI products. Responsibilities include vulnerability hu

The ideal candidate will possess deep technical expertise in offensive security and strong leadership abilities. This role involves designing sophisticated engagements, mentoring junior operators, and ensuring robust security across banking environments.

Collaborate with internal security and engineering teams to support the standardisation of API security practices across the organisation. Senior Offensive Security Analyst. The role will exclusively focus on identifying weaknesses in authentication and authorisation implementations across multiple

You’ll lead and scale a high-performing security testing function within a growing consultancy, balancing hands‑on delivery with ownership of practice direction, quality, and performance. You’ll define how security testing is delivered, shape the service portfolio, and ensure consistent, high�

Are you an experienced Senior Offensive Security Engineer that wants to work with cutting-edge cybersecurity technologies and contribute to enhancing our overall security posture? At Ivanti, we work passionately and authentically, striving to win together and make a real impact for our customers and

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