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Offensive security

Offensive Security (Pentest / Red Team)

Hands-on offensive work. High ceiling, high effort, slow start. OSCP/PNPT biased. CISSP is NOT the path.

Last reviewed May 2026Reviewed by a practitioner working in junior pentester or appsec engineer hiringUpdated quarterly against live job listings
The verdict

High ceiling, slow start, and almost nobody's first job. Treat it as a mid-career pivot from defensive or dev work, not an entry route.

You already break things for fun, you've got a HackTheBox or TryHackMe track record, and you can describe a real engagement in your own words. OSCP and the work it takes to pass it filters reasonably well.

You're brand new to IT. The pentest market doesn't hire juniors at the rate the YouTube ecosystem implies, and you'll burn 18 months on certs before you get a callback.

Phased progression

Foundations → first role → specialisation → advanced. The realistic order, not a script.

  1. 01Foundations
    0–6 months

    Literacy, lab habits, the cert that opens first conversations.

    eJPT
  2. 02First paid role
    6–18 months

    Land a Junior Pentester or AppSec Engineer. Operational time, not more certs, earns the next move.

    Junior Pentester or AppSec Engineer
    £35–50k junior pentest
  3. 03Specialisation
    1.5–3 years

    Add a specialist credential aligned to the work you're already doing.

    PNPTCRTO
    £55–80k mid
  4. 04Advanced
    3+ years

    Move into adjacent roles. Long-term credentials become worth their cost.

    Red TeamerOSEP
    £85–110k senior at banks/in-house (UK)

Certification sequence

Ordered by realistic relevance, not vendor marketing.

  • CRTO
  • Burp Suite Certified Practitioner

Practical projects

What to actually build, the portfolio that opens interviews.

  • TryHackMe + HackTheBox streaks with public write-ups
  • Internal CTF write-ups on a personal blog
  • Custom Burp extension or a small C2 plugin
Red TeamerAppSec EngineerAdversary Simulation
  • ·SOC-first then pivot offensive
  • ·AppSec via developer background

Realistic expectations

What no recruiter will tell you.

Misconception

That OSCP is the finish line. It's the qualifying lap. Most juniors with OSCP and no real-world reports still don't get hired, because consultancies want people who can write up a finding without hand-holding.

Honest window

Eighteen to thirty months from a standing start to a paid offensive role is the realistic window. People who already work in AppSec or sysadmin compress that. Pure career-changers rarely do.

The next step

The pathway is plausible. Whether it holds for five years is a different question.

A Career Verdict applies the framework to your actual stage and stack: what holds, what breaks, what would change the call.

A route shows what people usually do. A Career Verdict judges whether it's realistic for you.

Get a judgement on your situation£39, one-off. Built for your inputs, yours to keep.

Built on POST's practitioner-authored assessment framework, calibrated by James from twenty years across helpdesk, infrastructure and security. Framework is human-authored; the verdict applies it to your inputs.