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PENETRATION TESTER

Publication Date:  Dec 1, 2025
Ref. No:  538605
Location: 

Amstelveen, NL

 

About Atos Group

 

Atos Group is a global leader in digital transformation with c. 67,000 employees and annual revenue of c. €10 billion, operating in 61 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is the brand under which Atos SE (Societas Europaea) operates. Atos SE is listed on Euronext Paris.

 

The purpose of Atos Group is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.

We are looking for a Medior Penetration Tester with a passion for cybersecurity and a strong drive to protect organizations from emerging threats. You will be responsible for conducting penetration tests, identifying vulnerabilities, and providing actionable insights to enhance our clients’ security posture.

 

Key Responsibilities

 

  • Perform penetration tests on networks, applications, and systems.

  • Identify vulnerabilities and deliver clear, concise remediation advice.

  • Apply industry-standard methodologies (PTES, Cyber Kill Chain, ISAM, etc.).

  • Use security tooling such as Metasploit, Nmap, Burp Suite, Wireshark, Nessus, and similar.

  • Clearly communicate findings to both technical and non-technical stakeholders.

  • Stay up to date with new threats, security trends, and technologies.

  • Work in accordance with applicable laws and regulations regarding privacy and data protection.

 

Required Skills & Experience

 

  • Minimum 4 years of experience in penetration testing or offensive security.

  • Strong analytical and problem-solving skills.

  • Skilled with common penetration-testing tools and frameworks.

  • Excellent written and verbal communication skills.

  • Certifications: OSCP (or equivalent) is highly preferred.

  • Understanding of privacy, data protection, and relevant legal frameworks.

  • Eligibility for EU Clearance is required.

 

What we offer:

 

  • Competitive salary with attractive extra-legal benefits, such as:

  • Company car, fuel card, mobile data plan, meal vouchers, expense allowances. 

  • 20 annual leave days and 6 to 12 recuperation days. 

  • Insurance: 

  • Hospitalization, personal accident, and life insurance. 

  • An attractive stakeholder pension scheme. 

  • Income protection. 

  • Flex benefits system – an exciting opportunity to customize your benefits. 

  • Retail discounts. 

  • Participation in our share scheme (optional, subject to eligibility criteria). 

  • Unlimited learning opportunities via our training platforms. 

  • Eco vouchers and meal vouchers. 

  • A Sinterklaas (Saint Nicholas) voucher for employees with children. 

 

Want to know more? Contact Gabriela Mitova at gabriela.mitova@atos.net

 

 

 

Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.

 

Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment. 


Choose your future. Choose Atos.

Apply now »