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Junior Cybersecurity Pentester

https://www.soprasteria.com Logo

Sopra Steria

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Location:
Belgium , Brussels

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

We are looking for a motivated Junior Cybersecurity Pentester with a focus on network protocols and operating systems in offensive security contexts. This entry-level principal role offers hands-on growth in a high-impact environment.

Job Responsibility:

  • Quickly learn new information, especially non-standard network protocols used between dedicated devices from various manufacturers (with guidance)
  • Chance of a lifetime to contribute to testing in space environments

Requirements:

  • At least 3 years of relevant experience in cybersecurity, penetration testing, network analysis, or offensive security roles (e.g., internships, junior pentesting, or security operations)
  • Basic understanding of common network protocols and ability to troubleshoot networking issues under supervision
  • Foundational troubleshooting skills for operating systems and networking problems, with experience in network services like DHCP, FTP, HTTP, SSH, or Telnet
  • Ability to follow detailed action plans, with growing skills in planning
  • Solid knowledge of Linux operating systems, including basic low-level operations
  • Basic proficiency in C programming to modify simple tools or scripts (with support)
  • Introductory proficiency in Python with Scapy for generating traffic or basic network modifications (e.g., simple packet crafting)
  • Assist in traditional penetration tests of IT infrastructure under senior guidance
  • Willingness to work in unusual conditions at client sites, including without internet access
  • General awareness of system and network security mechanisms and best practices
  • Understanding of core IT security concepts like confidentiality, integrity, and availability
  • Proactive mindset with flexibility
  • experience interacting with stakeholders (even at junior levels)
  • Flexible to travel
What we offer:
  • Mobility options (including a company car)
  • Insurance coverage
  • Meal vouchers
  • Eco-cheques
  • Continuous learning opportunities through the Sopra Steria Academy
  • Opportunity to connect with fellow Sopra Steria colleagues at various team events

Additional Information:

Job Posted:
February 13, 2026

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