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- Tasks: Lead and execute complex penetration tests and red team engagements.
- Company: Join a top cyber consultancy focused on high-impact security testing.
- Benefits: Enjoy remote work flexibility and competitive salary between £60,000 - £80,000.
- Why this job: Be part of an elite team tackling real-world security challenges and mentoring others.
- Qualifications: Experience in penetration testing, strong understanding of attacker tactics, and relevant certifications preferred.
- Other info: Engage in continuous learning and contribute to innovative security solutions.
The predicted salary is between 60000 - 80000 £ per year.
Opus are looking for an experienced Penetration Tester to join our client, a cyber consultancy specialising exclusively in penetration testing and red teaming, delivering high-impact, adversary-simulated engagements for clients ranging from agile tech scale-ups to critical infrastructure providers. As a Senior Penetration Tester, you’ll play a central role in executing and shaping these engagements—across infrastructure, web, cloud, and bespoke environments—while also leading goal-based assessments and full-scale red team operations. This is a hands-on, client-facing position suited to someone who thrives in technically demanding scenarios and wants to work alongside a small, elite team of offensive security specialists.
Key Responsibilities
- Lead and execute complex penetration tests and adversary simulations
- Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK
- Develop custom tooling and exploits where required
- Create detailed, client-facing technical and executive reports
- Mentor junior testers and contribute to internal R&D
- Support scoping, pre-engagement, and post-engagement activities
- Stay sharp: engage in continuous learning and threat landscape analysis
About You
- Proven experience in penetration testing and red teaming (internal, external, app, cloud, etc.)
- Strong understanding of attacker TTPs and detection evasion
- Familiarity with frameworks such as OWASP, MITRE ATT&CK, and NIST
- Experience with C2 frameworks (e.g., Cobalt Strike, PoshC2, Sliver)
- Certifications such as OSCP, CRTO, OSEP, or CREST CRT preferred (but not required)
Senior Penetration Tester employer: Opus Recruitment Solutions
Contact Detail:
Opus Recruitment Solutions Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Penetration Tester
✨Tip Number 1
Network with professionals in the cybersecurity field, especially those who specialise in penetration testing. Attend industry conferences, webinars, and local meetups to connect with potential colleagues and learn about the latest trends and tools in the industry.
✨Tip Number 2
Engage in online communities and forums related to penetration testing and red teaming. Platforms like GitHub, Reddit, and specialised Discord servers can provide valuable insights, resources, and even job leads from fellow professionals.
✨Tip Number 3
Showcase your skills through practical demonstrations. Consider participating in Capture The Flag (CTF) competitions or contributing to open-source security projects. This not only sharpens your skills but also enhances your visibility in the community.
✨Tip Number 4
Stay updated on the latest threats and vulnerabilities by following relevant blogs, podcasts, and news outlets. Being knowledgeable about current events in cybersecurity will help you stand out during interviews and discussions with potential employers.
We think you need these skills to ace Senior Penetration Tester
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights relevant experience in penetration testing and red teaming. Focus on specific projects you've worked on, the tools you've used, and any frameworks you're familiar with, such as OWASP or MITRE ATT&CK.
Craft a Compelling Cover Letter: In your cover letter, express your passion for offensive security and detail why you want to work with this cyber consultancy. Mention your experience with complex penetration tests and how you can contribute to their team.
Showcase Your Skills: If applicable, include links to any relevant projects, blogs, or GitHub repositories that demonstrate your skills in penetration testing and custom tooling development. This can set you apart from other candidates.
Prepare for Technical Questions: Anticipate technical questions related to penetration testing methodologies, tools, and frameworks. Be ready to discuss your approach to adversary simulations and how you stay updated on the latest threats.
How to prepare for a job interview at Opus Recruitment Solutions
✨Showcase Your Technical Skills
Be prepared to discuss your hands-on experience with penetration testing and red teaming. Highlight specific projects where you executed complex tests, and be ready to explain the methodologies you used, such as TIBER or MITRE ATT&CK.
✨Demonstrate Your Problem-Solving Ability
During the interview, expect scenario-based questions that assess your ability to think critically under pressure. Practice articulating how you would approach a penetration test in various environments, including cloud and bespoke systems.
✨Prepare for Technical Assessments
You may be asked to complete a technical assessment or a practical test. Brush up on your skills with C2 frameworks like Cobalt Strike and ensure you can demonstrate your knowledge of detection evasion techniques.
✨Emphasise Mentorship and Teamwork
As a senior role, you'll likely be expected to mentor junior testers. Be ready to discuss your experience in leading teams, sharing knowledge, and contributing to internal R&D efforts. Show that you value collaboration and continuous learning.