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Pentester

Cyber Defence Ltd

Roles & Responsibilities

  • 3+ years of experience in penetration testing or offensive security
  • Strong understanding of OWASP Top 10 and MITRE ATT&CK
  • Proficiency with Burp Suite, Nmap, Metasploit, Nessus, and Wireshark
  • Experience with scripting languages (Python, Bash, PowerShell)

Requirements:

  • Plan and execute manual and automated penetration tests across web apps, networks, and APIs
  • Perform internal and external vulnerability assessments
  • Create comprehensive reports on findings with clear mitigation guidance
  • Collaborate with SOC Analysts, DevSecOps, and IT teams to implement remediations

Job description

Role Overview

Cyber Defence is a fast-growing cybersecurity company on a mission to protect digital assets and build client trust through robust, ethical, and forward-thinking cyber practices. From our office in Pueblo Nuevo, we serve clients across the UK, Spain, and beyond, working with CREST-certified practices and delivering government-grade security services. https://cyber-defence.io/  
 
What You’ll Be Doing 

As a Pentester at Cyber Defence, you'll play a key role in simulating attacks to identify system vulnerabilities across networks, applications, and cloud infrastructure. This is a hands-on technical role with a strategic impact on our clients' resilience and regulatory compliance. 

Key Responsibilities

  • Plan and execute manual and automated penetration tests across web apps, networks, and APIs.
  • Perform internal and external vulnerability assessments.
  • Create comprehensive reports on findings with clear mitigation guidance.
  • Collaborate with SOC Analysts, DevSecOps, and IT teams to implement remediations.
  • Stay updated on the latest attack vectors and security research.
  • Support Red Team and Purple Team exercises.
  • Assist with incident response investigations when needed.

Skills and Qualifications

Must-Haves 
  • 3+ years of experience in penetration testing or offensive security.
  • Strong understanding of common vulnerabilities (OWASP Top 10, MITRE ATT&CK).
  • Proficiency in tools such as Burp Suite, Nmap, Metasploit, Nessus, and Wireshark.
  • Experience with scripting languages (Python, Bash, PowerShell).
  • Excellent written and verbal communication (English).
  • Eligibility to work in Spain and occasional travel if required.
Nice-to-Haves 
  • CREST CRT or equivalent (OSCP, OSWE, CEH, etc.).
  • Experience with cloud pentesting (AWS, Azure, GCP).
  • Familiarity with compliance standards (ISO 27001, GDPR, NIST, PCI DSS).
  • English & Spanish language skills.
​

OUR BENEFITS

  • Be part of a mission-driven cybersecurity firm with global impact.
  • Work alongside CREST-certified experts and forward-thinking leadership.
  • Professional development budget & certification support.
  • On-site work with flexibility (based out of Pueblo Nuevo office).
  • Vibrant office culture near the coast – good vibes only!
Ready to apply?
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