Penetration Tester - Web & Mobile Security Expert

Discovery Limited; Johannesburg; On-site; ZAR 700,000 - 1,000,000; Full time

Job summary

Discovery Limited is seeking an Information Security Analyst - PenTester to perform penetration testing on web, mobile and cloud environments within the Discovery Group. You will work with stakeholders to define testing requirements and deliver thorough assessments with actionable recommendations.

The role requires 3–5 years of pentesting experience, red team exposure, and strong Linux/Windows/Mac skills, plus scripting and programming knowledge.

Qualifications

• 3–5 years of penetration testing experience including web, mobile and cloud apps
• 2 years in red team engagements and threat analysis
• Mastery of Linux/Mac/Windows OS including Bash, PowerShell and Python
• Ability to understand and modify code in various programming languages
• Proficiency in cryptographic protocols and cipher suites
• Thorough understanding of network protocols, data on the wire, and covert channels
• Source code reviews
• Familiarity with penetration testing methodology and standards
• Basic AI skills

Responsibilities

• Work with relevant stakeholders to determine penetration testing requirements
• Plan and create penetration methods, scripts and tests
• Carry out penetration testing to expose weaknesses in security
• Simulate security breaches to test a system's security
• Create reports and recommendations from findings, including risk levels
• Advise on methods to fix or lower security risks to systems
• Present findings, risks and conclusions to stakeholders
• Consider business impact of the simulated attack
• Stay updated with latest attack methodologies and tactics

Skills

Teamwork

Deadline driven

Information security

Independent working

High-pressure environment

Logical reasoning

Education

Degree in Computer Science / Computer Engineering

Security certifications (CEH GPEN OSCP CREST)

Tools

Linux

macOS

Windows

Bash

PowerShell

Python

Job description

Discovery Limited is seeking an Information Security Analyst - PenTester to perform penetration testing on web, mobile and cloud environments within the Discovery Group. You will work with stakeholders to define testing requirements and deliver thorough assessments with actionable recommendations.

The role requires 3–5 years of pentesting experience, red team exposure, and strong Linux/Windows/Mac skills, plus scripting and programming knowledge.