Penetration Tester at IT Security Company
Workplace: Stockholm, Sverige
Expires: December 20, 2025
Responsible for performing all kinds of complex technical activities including internal/external networks, applications, cloud, mobile, etc., sometimes on customer sites. Effective communication skills to convey complex technical information to clients are essential.
Main requirements:
  • Minimum 1 year experience in penetration testing or red team operations, including critical functionality and banking systems testing.
  • Manual penetration testing experience beyond automated tools.
  • Expertise in AWS, Azure, and cloud technologies, including VMs, containers, and infrastructure as code.
  • Previous experience as a subject matter expert or similar role.
  • Excellent understanding of firewalls, proxies, iptables, AV and EDR products, VPNs, IDS/IPS, and various network concepts.
  • Fluent in one or more programming or scripting languages: Java, Python, C/C++, C#, .NET, ASP, PHP.
  • Swedish citizenship.
  • Fluent in spoken and written English and Swedish.
Responsibilities:
  • Perform in-depth penetration tests over applications, infrastructure, cloud, and mobile platforms.
  • Conduct zero-knowledge black-box, grey-box, and white-box penetration tests in specific company areas.
  • Conduct tests and assessments in the cloud, including AWS, Azure, GCP, etc.
  • Perform security reviews of servers, network devices, architecture, and application designs.
  • Serve as an escalation point for team members regarding project-related issues.
  • Deliver pre-sales support including project scoping, estimates, and technical assistance through calls, meetings, and presentations with key clients.
  • Contribute to development of customers' security offerings, refining methods, reporting standards, and training materials.
  • Demonstrate ability to act as an industry expert.
Required hard skills:
  • Penetration testing (manual and automated)
  • Cloud platforms: AWS, Azure, GCP
  • Knowledge of virtual machines, containers, and infrastructure as code
  • Networking knowledge including firewalls, proxies, iptables, AV, EDR, VPNs, IDS/IPS
  • Programming/scripting languages: Java, Python, C/C++, C#, .NET, ASP, PHP
  • Security assessments of servers, network devices, architectures, applications
Recommended hard skills:
  • Industry-leading certifications such as OSCP, CRTE, CRTO, OSCE, OSWP, ARTE, CPTS
  • Degree in computer science, IT, or cybersecurity-related field
Soft skills:
  • Excellent verbal and written communication skills
  • Ability to explain complex technical information clearly
  • Teamwork and cooperative spirit
  • Continuous learner
  • Customer-oriented mindset
Coding languages:
  • Java
  • Python
  • C
  • C++
  • C#
  • .NET
  • ASP
  • PHP
Natural languages:
  • Swedish (Proficient)
  • English (Proficient)
Cultural skills:
  • Collaboration
  • Continuous learning mindset
  • Workplace fun and positive culture
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