Penetration Tester


Company 

4Square Recruitment Ltd

Location 

London

Employment Hours 

Full Time

Employment Type 

Permanent

Salary 

£50,000 - £80,000 Per Annum

Job Requirements/Description

Penetration Tester required for my client based in Leeds / London - visit office 2 x per month.

This is a permanent opportunity.

Salary approx. £50-80k.

Are you a skilled ethical hacker with a passion for uncovering vulnerabilities? My client are a fast-growing cybersecurity reseller / MSP delivering cutting-edge security solutions across multiple sectors.

The Role:

As the Penetration Tester, you'll simulate cyberattacks on client environments-testing networks, apps, cloud platforms, and more-to expose weaknesses and recommend fixes. You'll work on red/purple team engagements, social engineering tests, and cloud security assessments, delivering high-impact reports that drive real security improvements.

What You'll Do:

  • Perform infrastructure, web app, wireless, and cloud penetration tests
  • Execute red team simulations and assumed breach scenarios
  • Craft clear, actionable reports for both technical and executive audiences
  • Stay ahead of emerging threats, exploits, and attack techniques
  • Collaborate with cyber, managed services, and compliance teams

Skills You'll Need:

  • 2-5+ years in penetration testing (network, web, cloud, etc.)
  • Mastery of tools like Burp Suite, Metasploit, Cobalt Strike, Nmap
  • Deep knowledge of OWASP Top 10, MITRE ATT&CK, and exploitation techniques
  • Strong communication skills (you'll explain risks to both tech & non-tech stakeholders)
  • Certifications like OSCP, eCPPT, CREST CPSA/CRT, or similar

Bonus if you have:

  • Red team/purple team experience
  • Scripting skills (Python, PowerShell, Bash)
  • Cloud pentesting (AWS/Azure/GCP)
  • Advanced certs (OSCE, OSWE, CREST CRT, etc.)
Company 

4Square Recruitment Ltd

Location 

London

Employment Hours 

Full Time

Employment Type 

Permanent

Salary 

£50,000 - £80,000 Per Annum

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