Senior / Principal Offensive Security Consultant £100k

Senior / Principal Offensive Security Consultant £100k Location:Hybrid (2 days per month in London) Salary:£80,000 - £100,000 + benefits Are you aSenior Offensive Security ConsultantorPrincipal Penetration Testerready to take the next step intoRed TeamingandAdversarial Simulation ? This is your opportunity to join an agile, rapidly growing UK cyber security consultancy where you canown and shape an entire offensive service line , build advanced infrastructure, and contribute to research and tooling that truly make an impact. About the Role As aSenior / Principal Offensive Consultant , you'll lead complex technical engagements that go beyond standard penetration testing - focusing onadvanced exploitative infrastructure testing ,Active Directory compromise , andassumed breach assessments . You'll work directly with clients to scope, plan, and deliver high-impact projects, while helping to expand the organisation'sRed Team and adversarial simulation services . Key Responsibilities: Lead and deliver high-levelinfrastructure and Active Directory penetration testingengagements. Conductadvanced exploitative testing , lateral movement analysis, and privilege escalation within real-world environments. Supportpresalesactivity - crafting scopes, proposals, and technical solutions aligned with client objectives. Build and maintain strong, trustedclient relationships , acting as a technical authority and strategic partner. Develop and enhanceRed Teaming ,assumed breach , andadversary simulationservices. Contribute totooling ,infrastructure , andresearch initiatives- including whitepapers, presentations, and thought leadership. Mentor junior consultants, helping grow the internal capability and knowledge base. About You You'll be an experiencedPenetration Testing Consultant/Offensive Security Professionalwho combines strong technical capability with commercial awareness and client empathy. You'll thrive on pushing boundaries, building new services, and seeing your work directly shape business growth. Essential Skills & Experience: Proven background inoffensive security consultingorsenior penetration testing( with particular emphasis on infrastructure and Active Directory). Deep understanding of exploit development, privilege escalation, and lateral movement techniques. Experience withadversarial simulation ,assumed breach , orRed Teaming(or a strong interest in progressing into this space). Strong client-facing, presales, and scoping experience. Excellent written and verbal communication - capable of translating complex findings into actionable business advice. Desire to contribute totool development ,research , andtechnical innovation . Why Join? This is more than just another cyber security job - it's a genuine opportunity to make your mark. You'll be joining a team that values technical excellence, creativity, and collaboration, where your ideas are heard and implemented. Be part of adynamic, agile cyber consultancywith a clear technical vision. Shape and owna new offensive service line and see it grow under your leadership. Work oncutting-edge adversarial simulationandRed Teamengagements. Collaborate onresearch, tooling, and whitepapersthat influence the industry. 2 days per month in London forstrategy sessions and team building . Competitive salary:£80,000 - £100,000+ benefits. If you're anexperienced Offensive Security Consultant ,Senior Penetration Tester , orRed Team Operatorlooking for a role where you candrive innovation, lead engagements, and build something exceptional , we'd love to hear from you. Apply nowto take ownership of your next challenge and shape the future of offensive security. Emailif you don't want to upload your CV to the job board. Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role We also offer an iPad if you refer a new client to us and we recruit for them.Follow us on Facebook - Circle Recruitment , Twitter - @Circle_Rec and LinkedIn - Circle Recruitment.TPBN1_UKTJ