Senior Red Team Consultant – Adversary Emulation

Leonardo UK Ltd; Bristol; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Flexible working options

Hybrid working arrangement

Training and certification support

Job summary

Leonardo UK is seeking an experienced Red Team Consultant to join our Offensive Security capability, open to Senior and Principal levels. You will deliver threat-led assessments, adversary emulation and advanced security testing within defence environments, influencing tooling and service development.

You will work with cyber security specialists across Leonardo, contribute to capability development, research and continuous improvement, and travel to customer sites, primarily in Bristol and the

Qualifications

• Experience delivering red team, adversary simulations, or advanced penetration testing.
• Strong technical skills in initial access, cloud exploitation, malware development, detection evasion, operational security.
• Proficiency in Python, C#, JavaScript, Go or Rust.
• Ability to provide technical leadership and direction during engagements.
• Willingness to travel to customer sites (Bristol and SW region).
• DV clearance eligibility and UK nationality (no sponsorship).

Responsibilities

• Deliver threat-led assessments, adversary emulation, and red team activities.
• Develop tooling, methodologies, and best practices for the red team capability.
• Research threat actor TTPs and improve offensive security capabilities.
• Design, provision, and maintain red team infrastructure and tooling.
• Produce high-quality technical reports and share knowledge across the team.
• Engage with customers and stakeholders to scope activities and report findings.
• Demonstrate core consulting skills: reliability, adaptability, and teamwork.

Skills

Red team

Adversary simulation

Penetration testing

Python

C#

JavaScript

Go

Rust

Cloud exploitation

Malware development

Threat modeling

Reporting skills

OST coding

Education

Certifications (OSCP, CREST CRT/CCT)

Tools

Security tooling

Cloud environments

Tooling development

Job description

Leonardo UK is seeking an experienced Red Team Consultant to join our Offensive Security capability, open to Senior and Principal levels. You will deliver threat-led assessments, adversary emulation and advanced security testing within defence environments, influencing tooling and service development.

You will work with cyber security specialists across Leonardo, contribute to capability development, research and continuous improvement, and travel to customer sites, primarily in Bristol and the