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Penetration Tester Remote

Remote / Online - Candidates ideally in
Johannesburg, 2000, South Africa
Listing for: Cognisys Group
Remote/Work from Home position
Listed on 2026-10-10
Job specializations:
  • IT/Tech
    Cybersecurity
Job Description & How to Apply Below
Position: Penetration Tester Remote)

Location:
South Africa (Remote)

Salary: R400 000 - R550 000 per annum (DOE)

About Cognisys

Are you ready to make an impact in the fast-paced world of cybersecurity? Cognisys is growing rapidly, and we’re looking for a Penetration Tester to join our team during this exciting period of innovation and expansion.

Cognisys is a leading cybersecurity company specialising in Penetration Testing, GRC Consulting and Managed Security Services
. We pride ourselves on our customer service, forward-thinking approach and commitment to excellence. Our small but mighty team works with some of the best-known companies in the world and supports clients across more than 30 countries.

The Opportunity

As a Pen Tester, you will play a key role in delivering high-quality security assessments for our clients. You will test a range of environments, including networks, web applications, APIs, mobile applications and cloud infrastructure, using a combination of automated tools and manual testing techniques.

This is an opportunity to work on varied and challenging engagements, collaborate with experienced cybersecurity professionals and work directly with clients to help them understand and improve their security posture.

What You'll Be Doing

As a Penetration Tester, you will:

  • Conduct penetration testing across network, web application, API, mobile application and cloud environments.
  • Simulate real-world attack scenarios to assess clients' resilience against cyber threats.
  • Use a combination of automated tools, manual testing and exploitation techniques to identify and validate vulnerabilities.
  • Assess technical security controls and identify potential weaknesses and attack paths.
  • Analyse vulnerabilities and assess their potential business and security impact.
  • Produce high-quality technical reports outlining vulnerabilities, associated risks and practical remediation recommendations.
  • Clearly communicate complex technical findings in a way that can be understood by both technical and non-technical stakeholders.
  • Present findings and recommendations directly to clients, helping them understand, prioritise and remediate identified vulnerabilities.
  • Work collaboratively with colleagues to ensure the successful delivery of client engagements.
  • Keep up to date with emerging threats, vulnerabilities, tools and offensive security techniques.
  • Contribute to the continued development and improvement of Cognisys' penetration testing capabilities and methodologies.
What Success Looks Like

In your first few months, success in this role will look like:

  • Building a strong understanding of Cognisys' services, methodologies and approach to client delivery.
  • Successfully delivering penetration testing engagements to a high standard.
  • Producing clear, accurate and high-quality reports that provide clients with meaningful and actionable recommendations.
  • Building strong relationships with clients and communicating confidently throughout engagements.
  • Demonstrating sound technical judgement when identifying, validating and assessing vulnerabilities.
  • Effectively managing your time and workload across multiple engagements and competing priorities.
  • Continuously developing your technical knowledge and keeping up to date with developments in the offensive security landscape.
  • Contributing ideas and expertise to help improve our tools, methodologies and ways of working.
About You

We're looking for a passionate and technically capable penetration tester who enjoys understanding how systems work, identifying weaknesses and thinking creatively about how security controls could be bypassed.

You’ll be someone who is naturally curious, enjoys solving complex problems and is motivated by staying ahead of emerging threats and attack techniques.

We’re also looking for someone who can…

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