Senior Security Engineer (Red Team)

Senior Security Engineer (Red Team)

Atos

Bydgoszcz, Poland

Role Overview:

We are seeking a highly skilled and passionate Senior Security Engineer to join our Red Team. This role is ideal for someone with a strong offensive security mindset, hands-on experience in penetration testing, system administration, and software development. You will simulate real-world attacks to identify vulnerabilities, improve detection and response capabilities, and contribute to the overall security posture of the organization.

Key Responsibilities:

• Plan and execute advanced red team operations, including adversary emulation and scenario-based testing;
• Develop and maintain custom tooling for offensive security operations;
• Perform vulnerability assessments, exploit development, and post-exploitation activities across diverse environments;
• Conduct reconnaissance, initial access, lateral movement, and persistence techniques using C2 frameworks;
• Analyze and reverse engineer applications, binaries, and protocols;
• Collaborate with blue teams to improve detection and response capabilities;
• Research and publish technical blog articles, CVEs, and open-source tools;
• Participate in CTFs, bug bounty programs, and contribute to the security community;
• Share knowledge across teams and mentor junior engineers.

Required Skills & Experience:

• Penetration testing and red teaming experience;
• Solid background in system administration and software development;
• Deep understanding of vulnerabilities and exploitation techniques;
• Proficiency in at least one programming language (e.g., Python, C/C++, Go).

Experience with:

• BurpSuite, Nmap, Nessus, and other scanning tools;
• Cloud environments (AWS, Azure, GCP);
• Active Directory and EntraID;
• Familiarity with networking fundamentals and operating systems (Windows, Linux);
• Strong communication and documentation skills.

Preferred Qualifications (Nice-to-Have):

• Experience in incident response and threat hunting.
• Certifications such as OSCP, CRTO, CRTL, OSEP, OSWE, OSED, CPSTS, CAPE, CWEE, CISSP.
• Contributions to CVEs or security research.