Penetration Tester

Penetration Tester

Full-Time 54000 - 66000 £ / year (est.) Working from home possible
Colossus Recruitment

At a Glance

  • Tasks: Simulate real-world attacks and uncover vulnerabilities to strengthen client security.
  • Company: Join a dynamic cyber team at Colossus, delivering top-notch security services.
  • Benefits: Enjoy career development, a supportive culture, and diverse projects.
  • Other info: Remote UK role with excellent growth opportunities in a collaborative environment.
  • Why this job: Make a real impact in cybersecurity while working with cutting-edge tools.
  • Qualifications: Experience in penetration testing and proficiency in Linux/Windows scripting.

The predicted salary is between 54000 - 66000 £ per year.

  • Overview
  • Penetration Tester – UK Remote Linux / Windows Python, Power Shell, Bash

Are you passionate about ethical hacking and ready to take your skills to the next level?

We're hiring a Penetration Tester to join a growing cyber team delivering CREST-aligned security services.

You’ll simulate real-world attacks, uncover vulnerabilities, and help clients strengthen their defenses — all while working with cutting-edge tools and frameworks.

Responsibilities

  • Perform web, infrastructure, wireless & cloud penetration tests (OWASP, PTES).
  • Scope engagements and define testing objectives with clients.
  • Identify, exploit, and report vulnerabilities with clarity and precision.
  • Provide actionable remediation advice.
  • Stay ahead of emerging threats and tools.

Qualifications

  • Experience in penetration testing across multiple domains.
  • Working at a cyber team consulting team delivering CREST-aligned security services
  • Strong knowledge of OWASP Top 10, PTES, MITRE ATT&CK.
  • Proficiency in Linux/Windows and scripting (Python, Power Shell, Bash).
  • Excellent communication and reporting skills.

Certifications

  • CREST CPSA or CRT, OSCP (essential)
  • OSEP, OSWE, GWAPT, GPEN, CHECK (desirable)

Why Join?

  • Diverse, challenging projects
  • Career development aligned with SFIA Level 5
  • Supportive, collaborative team culture
  • Application details

All our roles are UK based. When submitting your application to Colossus, please ensure the following:

  • Your CV has your address and postcode.
  • You also have your correct phone number and email address so we can contact you asap regarding your application.
  • For confidentiality purposes, please remove any reference contact phone number's and email address details from your CV.
  • Seniority level
  • Associate
  • Employment type
  • Full-time
  • Job function
  • Information Technology
  • Industries
  • Sound Recording and Data Security Software Products
  • Referrals increase your chances of interviewing at Colossus Recruitment by 2x

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Penetration Tester employer: Colossus Recruitment

As a Cloud Engineer at our company, you'll be part of a dynamic and innovative team that values collaboration, precision, and continuous improvement. We offer a hybrid working model that promotes work-life balance, alongside opportunities for professional growth and mentorship in a supportive environment. Join us to contribute to cutting-edge Azure cloud infrastructure projects while enjoying the benefits of a culture that prioritises excellence and employee well-being.

Colossus Recruitment

Contact Details:

Colossus Recruitment Recruitment Team

We think you need these skills to ace Penetration Tester

Penetration Testing
Ethical Hacking
Vulnerability Assessment
Web Application Security
Infrastructure Security
Wireless Security
Cloud Security