Senior Penetration Tester, Sopra Steria

Sopra Steria

Location:
Belgium, Brussels

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

Save Job

Apply Position

Job Description:

We are looking for a senior penetration tester specializing in network protocols, operating systems, and offensive security. The role involves conducting penetration tests, troubleshooting complex networking and operating system issues, and developing custom tools for security testing purposes.

Job Responsibility:

Conduct traditional penetration tests of IT infrastructure
troubleshoot problems at both the operating system and networking levels
develop custom tools or adapt existing software
create and test scripts for network traffic modifications
work in unusual conditions at client sites without internet access

Requirements:

The ability to quickly learn new information, particularly regarding non-standard network protocols used between dedicated devices from various manufacturers
low-level understanding of various network protocols and the ability to quickly solve diverse networking issues
troubleshooting skills for resolving problems at both the operating system and networking levels
experience with a wide range of network services (e.g., DHCP, FTP, HTTP, SSH, Telnet, and many others)
the ability to plan actions in detail
excellent knowledge of the Linux operating system, including the ability to operate at a low level
proficiency in programming in C, sufficient to develop custom tools and adapt existing software to specific needs
proficiency in Python programming using the Scapy library, including the ability to create scripts that generate specific types of traffic or modify network traffic in real time (e.g., conducting Man-in-the-Middle attacks)
the ability to conduct traditional penetration tests of IT infrastructure
the ability to work in unusual conditions at the client’s site, without internet access
general understanding of various system and network security mechanisms and best practices
understanding of key IT security concepts such as confidentiality, integrity, and availability

What we offer:

Mobility options (including a company car)
insurance coverage
meal vouchers
eco-cheques
continuous learning opportunities through the Sopra Steria Academy
the opportunity to connect with colleagues at team events

Additional Information:

Job Posted:
August 06, 2025

Employment Type:

Fulltime

Work Type:

On-site work

View All Jobs In This Company

Job Link Share:

Senior Penetration Tester