Offensive Security Consultant

Cyber UK; City of Edinburgh; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

World class benefits

Job summary

Quorum Cyber in Edinburgh is seeking an Offensive Security Consultant to deliver advanced penetration testing, red teaming, and compromise assessments, working with clients to identify vulnerabilities and strengthen defenses.

You will contribute to developing new methodologies, tools, and services that enhance the organisation’s offensive security capabilities, lead engagements, and mentor team members while advancing skills and knowledge within the practice.

Qualifications

• Proven technical experience in penetration testing, red team, or offensive security engagements.
• Deep understanding of attack methodologies, vulnerability exploitation, and post-exploitation techniques.
• Strong communication skills with the ability to explain technical findings clearly to diverse audiences.
• Ability to work autonomously within a team, manage multiple engagements, and balance priorities effectively.
• A collaborative mindset with a passion for continuous learning and technical innovation.

Responsibilities

• Lead, manage and deliver technical engagements, ensuring we provide best-in-class cyber security services to our customers.
• Ensure our clients build and strengthen their internal capabilities, partnering with internal security teams to increase the effectiveness of their investment and reduction of risk.
• Build and nurture the team, ensuring we find and retain the best people, grow their skills and help them develop their careers.
• Lead and collaborate in technical research, ensuring teams are always advancing our practices and improving our skills.

Job description

Company Description:

At Quorum Cyber, we’re on a mission to help good people win. Founded in Edinburgh in 2016, we’re one of the fastest growing cyber security companies in the UK and North America, serving over 400 customers on four continents. We protect organisations against the rising threat of cyber-attacks, enabling them to thrive in an increasingly unpredictable and inhospitable digital landscape. As a Microsoft-only security house, a Microsoft Solutions Partner for Security, a member of the Microsoft Intelligent Security Association (MISA), and winner of the Microsoft Security MSSP of the Year 2025 award, we offer a unified security ecosystem comprised of innovative services, all delivered through our customer platform, Clarity. In September 2024, Quorum Cyber acquired Canada-based, Microsoft Solutions Partner for Security, Difenda. This was closely followed in December 2024 by the acquisition of US-based, Kivu Consulting, a global cyber security firm with world-leading incident response capabilities.

Role Purpose:

The Offensive Security Consultant delivers advanced penetration testing, red teaming, and compromise assessment engagements, working closely with clients to identify vulnerabilities and strengthen their defences. The role contributes to developing new methodologies, tools, and services that enhance the organisation’s offensive security capabilities.

What I Do Is:

• Lead, manage and deliver technical engagements, ensuring we provide best-in-class cyber security services to our customers.
• Ensure our clients build and strengthen their internal capabilities, partnering with internal security teams to increase the effectiveness of their investment and reduction of risk.
• Build and nurture the team, ensuring we find and retain the best people, grow their skills and help them develop their careers.
• Lead and collaborate in technical research, ensuring teams are always advancing our practices and improving our skills.

The Skills I Need Are:

• Proven technical experience in penetration testing, red team, or offensive security engagements.
• Deep understanding of attack methodologies, vulnerability exploitation, and post-exploitation techniques.
• Relevant certifications such as OSCP, CPSA, CRT or equivalent.
• Strong communication skills with the ability to explain technical findings clearly to diverse audiences.
• Ability to work autonomously within a team, manage multiple engagements, and balance priorities effectively.
• A collaborative mindset with a passion for continuous learning and technical innovation.

I Know I Have Done A Great Job If:

• My engagements are delivered on time, within scope, and to consistently high technical standards.
• I’ve strengthened client trust through collaboration, communication, and expert advice.
• I’ve contributed to developing new tools, methodologies, or services that enhance our offensive security offering.
• I mentor others, helping the team grow in both capability and confidence.
• I’ve played a key role in creating an environment where the team continually learns, innovates, and enjoys delivering great work together.

Other Information:

• You will get an excellent salary, with world class benefits.
• As leading-edge technology company you will have access to the latest technology, and an environment that will encourage and nurture your curiosity.
• We are passionate about your development, and you will be empowered to advance your skills and expertise.

Our Commitment to Equality & Diversity:“Our diversity is a huge part of our success, and collecting data during the hiring process helps us understand how to keep strengthening and supporting that diversity.”

We are an equal opportunity employer. We are committed to fostering an inclusive, accessible, and equitable workplace where all qualified applicants receive fair consideration. We do not discriminate on the basis of race, national or ethnic origin, colour, religion, age, sex, sexual orientation, gender identity or expression, marital status, family status, disability, or any other characteristic protected under applicable federal, provincial, or territorial human rights legislation.

The information requested below is collected to help us meet our employment equity and reporting obligations, and to support our ongoing diversity and inclusion initiatives. Providing this information is entirely voluntary. It will not be shared with hiring managers and will not be used in any hiring decision. Declining to provide this information will not affect your application in any way.