İstanbul, Türkiye Hybrid

Lostar is hiring a Penetration Tester

About the Role

As a Penetration Tester, you will take ownership of end-to-end security evaluations, identifying and addressing risks across critical IT systems. Your work will focus on assessing web applications, internal network infrastructures, and Active Directory configurations to ensure robust defenses against real-world threats.

Key Responsibilities

  • Lead and execute security assessments across multiple domains, including web platforms and enterprise networks
  • Perform in-depth testing of Active Directory environments to uncover misconfigurations and access control weaknesses
  • Design and run Red Team operations to simulate adversarial tactics and improve detection capabilities
  • Conduct automated and manual vulnerability scans to identify potential entry points
  • Deliver clear, actionable findings to support remediation efforts

Work Environment

This role operates primarily in a remote setting, offering flexibility in where you work. Occasional on-site visits may be required to support specific assessments or client engagements. The environment emphasizes collaboration, adaptability, and technical excellence.

Required Skills
penetration testingcybersecurityvulnerability assessmentsecurity auditingethical hacking Penetration TestingWeb Application SecurityNetwork SecurityActive DirectoryVulnerability ScanningRed Teaming
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About company
Lostar
Since 1998, Lostar is the leading Information Security firm, with more than 1000 projects in Turkey and abroad. Its main services are; Information Security Checkups such as Internet-Intranet Penetration Tests, Gap Analysis of world-wide best practices like COBIT, ISO 27001, ISO 22301 and ISO 20000, related consultancy and data protection projects and also Employee Security Awareness Methodology trainings. Lostar consultants, who are well trained and experienced, create the optimal-cost solutions for their customers with paying attention to technical and commercial needs. Lostar has 3 offices in 3 different cities such as Istanbul, London and Sakarya.
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Job Details
Category security
Posted 3 months ago