How to become a Penetration Tester
A penetration tester is hired to find and prove a real attack path before someone else does: intercepting and tampering with web traffic, chaining authorization and injection flaws into something with real impact, and writing a report a client's engineering team can act on. Manual reasoning over an automated scanner result is what separates a strong tester from a checklist runner.
Typical entry route: Mostly a mid level, client-facing role. A smaller entry tier exists for candidates who show a strong personal lab and an OSCP certification without prior paid experience.
What the job asks for
Skills real penetration tester postings ask for
Marked against what SecMissions teaches today: covered means a mission builds this skill directly, partly means the underlying reasoning is taught but the tool or workflow context is not, and planned means it is an open gap.
- Intercepting and modifying a request with a proxyCovered
- Exploiting an IDOR through a tampered numeric referenceCovered
- Bypassing a role check using a client supplied fieldCovered
- Forcing browsing to an endpoint the server never checkedCovered
- Exploiting a token the server never actually verifiesCovered
- Chaining a SQL injection through unsanitized string concatenationCovered
- Exploiting command injection through an unsanitized argumentCovered
- Exploiting SSRF through a URL parameterCovered
- Writing a finding with an accurate severity and a real remediationCovered
- Chaining a network level or Active Directory attack pathPlanned
Starter plan
Your first 8 missions, in order
This is the order we would work through the catalog for this role. Each mission opens in the full library, which needs a free account.
- 1Reading an Intercepted RequestWeb Application · Difficulty 1 of 10 · 4 min
- 2Repeating a Request with a Changed ValueWeb Application · Difficulty 1 of 10 · 4 min
- 3What the Proxy Proves About Client-Side ControlsWeb Application · Difficulty 2 of 10 · 5 min
- 4IDOR on a Numeric Invoice ReferenceWeb Application · Difficulty 2 of 10 · 5 min
- 5Role Tampering via a Client-Supplied FieldWeb Application · Difficulty 3 of 10 · 6 min
- 6Forced Browsing to an Unchecked Admin EndpointWeb Application · Difficulty 3 of 10 · 6 min
- 7A Bearer Token the Server Never VerifiesWeb Application · Difficulty 4 of 10 · 7 min
- 8SQL Injection through String ConcatenationExploits · Difficulty 3 of 10 · 6 min
Interview Lab
Interview topics we drill
The Interview Lab rehearses these topics with scored rounds behind a free account. No prompt or model answer is shown here; open the Lab to practice the real thing.
Where this role is hiring
Demand, sourced
OSCP remains the dominant credential this role screens for, and it pays for itself: ZipRecruiter's salary aggregation put the average US pay for an OSCP-holding penetration tester at $119,895 as of April 2026. Entry level hiring is thin everywhere it has been measured, which raises the value of a demonstrable personal lab over a resume line alone.
Honest gaps
What we do not cover yet
We would rather tell you this than let a gap surface after you have paid for a plan.
- Network layer and Active Directory attack path content, which does not exist in the catalog yet.
- Report writing depth beyond the single dedicated severity and remediation mission.
- Host based exploitation of the kind an OSCP-style exam expects.
Start the Penetration Tester plan today
A free account unlocks the mission library and a daily taste of the Interview Lab.
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