Offensive Security Researcher

DV cleared Red Team Operator / Offensive Security Consultant Bristol HQ (3-4 days a week onsite) with travel to local sites Up to £86 p/h Inside IR35 Are you an experienced

DV CLEARED

Red Team Operator or Offensive Security Specialist

looking for your next challenge in national security and defence? We're looking for a technically strong offensive security professional to deliver red team operations, adversary simulations and advanced security assessments within complex defence and government environments. This is an opportunity to use your expertise to simulate realistic cyber threats, identify vulnerabilities and help organisations strengthen their security against sophisticated attackers. What you'll be doing Red Team Operations:

Plan and deliver threat-led security assessments, adversary emulation and advanced penetration testing engagements. Offensive Security:

Apply specialist skills across areas such as initial access, cloud exploitation, malware development, detection evasion, operational security and adversary simulation. Tooling & Infrastructure:

Design, deploy and maintain the infrastructure, cloud environments and security tools required to support offensive security operations. Tool Development:

Develop or adapt offensive security tools, automation and bespoke capabilities using languages such as Python, C, C#, JavaScript, Go or Rust. Technical Leadership:

Provide technical direction during engagements, collaborate with colleagues and share knowledge to strengthen team capabilities. Customer Engagement:

Work with customers and stakeholders throughout the engagement lifecycle, from scoping and planning through to execution, reporting and debriefing.

Essential skills and experience Current DV clearance (Please do NOT apply if you do not hold this level of clearance) Proven experience delivering red team operations, adversary simulation or advanced penetration testing. Relevant red teaming or offensive security certifications. Strong technical expertise in at least one specialist area, such as initial access, cloud exploitation, malware development, detection evasion, operational security, physical security testing or adversary emulation. Experience with scripting or development languages such as Python, C, C#, JavaScript, Go, Rust or similar. Comfortable travelling to customer sites, primarily across Bristol and the South West. Knowledge of frameworks such as MITRE ATT&CK, CAF or NIST. Relevant certifications such as RTO, RTO2, OSCP, OSEP, OSED, OSCE, CREST CRT/CCT or equivalent.

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