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Derry Training Elite IT & Cybersecurity Careers
Cybersecurity · career guide

Penetration Tester & Offensive Security

Legal, professional offensive security: red-team methodology, exploitation, reporting.

Median salary $125,000 · 44-week programme · from $97/week

What you'll learn

The skills this track builds

Every one of these appears in real job descriptions for this field.

Linux & systems

Used by: DevOps/SRE, Penetration Tester, Cybersecurity Engineer

Networking & protocols

Used by: DevOps/SRE, Penetration Tester, Solutions Architect, Cybersecurity Engineer

Vulnerability assessment & exploitation

Used by: Penetration Tester

Application & web security

Used by: Penetration Tester, AI Security Engineer, Cybersecurity Engineer

Python programming

Used by: ML Engineer, Data Engineer, Data Scientist, Penetration Tester

Security reporting & remediation

Used by: Penetration Tester, Cybersecurity Engineer, AI Security Engineer

Network & system security

Used by: Cybersecurity Engineer, Cloud Security Architect

Threat modelling & risk

Used by: Cloud Security Architect, AI Security Engineer, Penetration Tester

Analytical problem-solving

Used by: All roles

The year

Phase by phase

Phase 1

Foundations (wks 1–10): networking, Linux and Windows internals, scripting.

Phase 2

Offensive core (wks 11–24): reconnaissance, exploitation, web application attacks, Active Directory.

Phase 3

Advanced operations (wks 25–34): red-team methodology, evasion, professional reporting.

Phase 4

Capstone & placement (wks 35–44): full-scope assessment capstone, certifications, interview phase.

Certification preparation: CompTIA PenTest+ · eJPT · OSCP-aligned preparation.

How we teach

Live, mentored, and built to stick

Live small-cohort classes, a weekly 1:1 mentor, hands-on labs, and a spaced-repetition system so week-3 skills are sharp in week 30.

Cybersecurity

Penetration Tester & Offensive Security — free brochure

Legal, professional offensive security: red-team methodology, exploitation, reporting.

  • The skills you'll master — and the jobs that pay for them
  • How Derry teaches: live classes, a personal mentor, spaced repetition
  • Salary ranges, certifications and where this leads
  • Exactly how to become a student

Free. We'll email you the PDF and occasional, unsubscribe-anytime tips. No spam.

Ready to talk it through?

A free 10-minute call — we'll tell you honestly whether this track fits.

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