Ethical Hacker - Senior Consultant

OME
London
3 days ago
Create job alert

Forvis Mazars cares about your career progression, offering individually designed career paths that help you pursue your interests, match your changing needs, and explore your true potential. We work with diverse, prestigious clients across a range of sectors and geographies, giving you the opportunity to constantly update and grow your skills for lifelong professional development.


Job Purpose

As a Senior Penetration Tester, you'll lead complex security engagements across infrastructure, cloud, mobile, AI systems, and more. You will design and execute red team operations, mentor junior consultants, and directly influence our technical testing capability and methodology as we progress towards CHECK and CREST STAR accreditations. This role is suited for experienced professionals ready to push the boundaries of ethical hacking and adversary simulation.


Role & Responsibilities

  • Deliver and lead red team, purple team, and assumed breach, infrastructure, and applications assessments across multiple sectors.
  • Emulate real-world attack scenarios using custom tooling and TTPs aligned with MITRE ATT&CK.
  • Develop comprehensive and accurate reports and presentations for both technical and executive audiences.
  • Interface with clients to address concerns, issues, or escalations; track and drive to closure any issues that impact the service and its value to clients.
  • Working with clients to develop appropriate remediation plans.
  • Providing thought leadership and direction for the Cyber Security practice on malware, attack vectors and methods to protect against threats. 
  • Helping recruit, retain and develop the Ethical Hacking team by bringing superior leadership skills.
  • Training and mentoring of graduate entry colleagues through the sharing of professional and technical skills and experience.
  • Carry out research when not on client deliverable work that can be used to enhance our services to clients.
  • Work with teams across the business, providing the latest technical knowledge to collaborate on interesting client projects.

Skills, Knowledge & Experience 

The following are expected from potential applicants:



  • Experience with red teaming, purple teaming, and social engineering techniques.
  • Application, Infrastructure and Cloud penetration testing experience above and beyond running automated tools.
  • A good understanding of Unix, Microsoft Windows, and network security skills.
  • Excellent written and communication skills in English.
  • Ability to work both independently and collaboratively in a team.
  • Developing applications in one or more of the following: C#, ASP, .NET, Objective-C, Go, or Java (J2EE).
  • CSTM / CRT / CSTL / CCT-INF / CCT-APP / OSEP / OSWE / CRTO / CRTO II
  • On the pathway to: CCSAM / CCSAS / CCRTS / CSRTM
  • Working knowledge of Azure AD, Office 365, and common cloud hosting platforms.
  • A degree in a STEM related subject including computer security, computer science, or equivalent experience.

Advantageous:



  • Mobile application, IoT and/or OT testing experience. 
  • Experience testing AI models or LLM-based applications for adversarial attacks.
  • Research and Development experience.
  • Threat Intelligence and Malware Development experience.
  • Ability to work both independently and perform as a team member in a group environment.
  • Red team operations and purple team delivery, including adversary emulation.

About Forvis Mazars

Forvis Mazars is a leading global professional services network. The network operates under a single brand worldwide, with just two members: Forvis Mazars LLP in the United States and Forvis Mazars Group SC, an internationally integrated partnership operating in over 100 countries and territories.


Both member firms share a commitment to providing an unmatched client experience, delivering audit & assurance, tax and advisory services around the world. Together, our strategic vision strives to move our clients, people, industry and communities forward.  Through our reach and areas of expertise, we help organisations respond to emerging sustainability issues in the global marketplace including human rights, climate change, environmental impacts and culture.


We are one diverse, multicultural, multi-generational team with a huge sense of connection and belonging. This is a place where you can take ownership of your career, get involved, believe in yourself and put your ideas into action.


At Forvis Mazars, we empower our people and celebrate individuality. We thrive on teamwork and are agile. We have bold foresight and give people the freedom to make a personal contribution to our shared purpose. We support one another to deliver quality, create change and have a deeper understanding, to help make an impact so that everyone can reach their full potential.


Being inclusive is core to our culture at Forvis Mazars; we want to ensure everyone, whether in the recruitment process or beyond is fully supported to be their unique self. To read more about our approach click here.


Our aim is to make the recruitment process as accessible and inclusive as possible - please contact us to discuss any changes you may require so we can work with you to support you throughout your application.


Visitforvismazars.com/ukto learn more

Related Jobs

View all jobs

Ethical Hacker - Senior Consultant

Penetration Tester (Newbury)

Penetration Tester

Cyber Security Engineer...

Assistant Group Head of IT

Compliance Officer

Get the latest insights and jobs direct. Sign up for our newsletter.

By subscribing you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Top 10 Best UK Universities for Cyber Security Degrees (2025 Guide)

Discover ten of the strongest UK universities for Cyber Security degrees in 2025. Compare entry requirements, course content, research strength and industry links to choose the right programme for you. Cyber Security has moved from IT back-room concern to critical national infrastructure. With growing threats from ransomware, state-sponsored attacks and supply-chain compromise, demand for well-trained cyber professionals has never been higher. The UK is home to a clutch of universities recognised globally for excellence in this field. Below, we profile ten institutions offering robust undergraduate or postgraduate cyber-security pathways. While league tables shift year on year, these universities have a consistent record of first-class teaching, research and industry collaboration.

How to Write a Winning Cover Letter for Cyber Security Jobs: Proven 4-Paragraph Structure

Learn how to craft the perfect cover letter for cyber security jobs with this proven 4-paragraph structure. Ideal for entry-level candidates, career switchers, and professionals looking to advance in the cyber security sector. When applying for a cyber security job, your cover letter is an essential component of your application. The cyber security industry is continuously evolving, and organisations are always seeking professionals who can protect their networks, systems, and data. Your cover letter provides an opportunity to demonstrate your technical expertise, your enthusiasm for cyber security, and your ability to contribute to the protection of sensitive information. Whether you're just entering the field, transitioning from another career, or looking to advance in cyber security, this article will guide you through a proven four-paragraph structure to create a compelling cover letter. We’ll provide sample lines and tips to help you stand out in the competitive cyber security job market.

Quantum-Enhanced AI in Cyber Security: Guarding the Digital Frontier

The cyber security landscape has evolved dramatically over the past decade. Long gone are the days when businesses primarily worried about simplistic phishing or basic website defacements. Today’s threats include nation-state attacks, sophisticated ransomware, AI-generated phishing campaigns, and a wide array of stealthy intrusion methods. Organisations must defend vast digital ecosystems that include cloud infrastructure, IoT devices, and critical operational technology—any of which can become high-value targets for malicious actors. Amid these escalating challenges, a new technological wave is emerging: quantum computing. Although still in its infancy, quantum computing promises capabilities that could surpass even the most advanced classical supercomputers for specific tasks. Simultaneously, in the world of Artificial Intelligence (AI)—where data volumes and model complexity are exploding—quantum’s parallelism could significantly boost analysis, training, and decision-making. What unfolds when quantum computing and AI converge in the realm of cyber security? On one hand, quantum technologies could introduce stronger encryption and faster threat detection. On the other, adversaries armed with quantum power might break today’s cryptographic protocols or develop more potent attacks at unimaginable speeds. This article explores the phenomenon of quantum-enhanced AI for cyber security: the possibilities it unlocks, the challenges it poses, and the reasons it could reshape both defensive and offensive operations in the digital world.