Penetration Tester - Senior

iO Associates; Bristol; On-site; GBP 100,000 - 125,000

Job description

Job Title: Penetration Tester (Multiple Openings)

Location: Bristol, UK (with frequent travel to client sites)

Type: Permanent

Salary: £55k - £80k

We are seeking multiple Penetration Testers to join a leading technology company based in Bristol, UK. The company specialises in cybersecurity consultancy, software development, and bespoke research & development, operating across industries such as telecommunications, finance, defence, rail, and aerospace. Our team plays a key role in safeguarding critical infrastructure and supporting global organisations.

As a Penetration Tester, you will be instrumental in evaluating and strengthening our clients' security frameworks. Your role will involve conducting advanced penetration testing, vulnerability assessments, and red teaming exercises to identify and mitigate security risks. Additionally, you will contribute to project management and client engagement.

Key Responsibilities:

• Plan and execute penetration tests on networks, systems, and applications to identify security vulnerabilities.
• Perform in-depth vulnerability assessments, security audits, and risk analysis, providing clients with detailed reports and actionable recommendations.
• Collaborate with the red team to simulate real-world cyber threats and evaluate the effectiveness of security measures.
• Develop and utilise exploit tools to demonstrate potential vulnerabilities and assist clients in understanding associated risks.

Required Skills & Qualifications:

• Bachelor's or master's degree in computer science, Cybersecurity, Information Security, or a related discipline.
• Relevant certifications: CHECK Team Member, CREST Registered Tester, or equivalent.
• Minimum of 2 years' experience in penetration testing and vulnerability assessment.
• Strong understanding of network protocols, operating systems, and security technologies.
• Proficiency in penetration testing tools such as Metasploit, Burp Suite, Nmap, and others.

Preferred Experience:

• Architecture and end-to-end security reviews.
• TCP/IP networking (firewalls, routing, etc.).
• Coding/scripting (Python, Bash, C#, etc.).
• Internet security.
• Cryptography and password cracking.

Additional Beneficial Skills:

• Code review.
• Audit experience (ISO27001, CTAS, CAS(T)).
• Mentorship and leadership capabilities within a technical team.

Benefits:

• Competitive salary with performance-based incentives.
• Professional development and certification opportunities.
• A dynamic and collaborative work environment.

If you are an experienced Penetration Tester seeking to advance your career, apply today!