Senior Cyber Security Consultant – PenTesting

Astrum Search; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Astrum Search is seeking a Senior Consultant in cyber security for work across London, Birmingham, or Nottingham. The role emphasizes expertise in testing against NCSC, NIST, and CAF frameworks and hands-on offensive security and pen testing.

The ideal candidate will hold industry certifications (PenTest+, CREST, OSCP, etc.), with experience using Kali Linux, Burp Suite, Nessus and similar tools, and will contribute to growing client value across FTSE markets.

Qualifications

• Industry recognised security certifications such as PenTest+, CREST, OSCP are required/advantageous.
• Experience with offensive security and penetration testing across networks and applications.
• Experience with infrastructure and web app testing; API testing desirable.

Responsibilities

• Lead security testing engagements across multiple clients and industries.
• Perform offensive security assessments and provide actionable remediation guidance.
• Collaborate with client teams and project stakeholders across locations (London/Birmingham/Nottingham).

Skills

Penetration testing

Offensive security

Client communication

Education

Certifications in security (PenTest+, OSCP, CREST)

Tools

Kali Linux

Burp Suite

Nessus

Job description

Astrum Search is seeking a Senior Consultant in cyber security for work across London, Birmingham, or Nottingham. The role emphasizes expertise in testing against NCSC, NIST, and CAF frameworks and hands-on offensive security and pen testing.

The ideal candidate will hold industry certifications (PenTest+, CREST, OSCP, etc.), with experience using Kali Linux, Burp Suite, Nessus and similar tools, and will contribute to growing client value across FTSE markets.