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Senior Penetration Tester

Spektrum

Spektrum is also hiring for this role in Mons, Belgium.

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This role on the market

21 open penetration roles across 15 companies are on ApplySarthi right now, most of them in Bengaluru (1).

What penetration roles keep asking for: Penetration testing (71%), Python (48%), LLMs (33%), Java (29%), Shell scripting (24%), AWS (19%), Docker (19%), Go (19%) — counted across their open postings here.

Linux jobs · Penetration testing jobs · Perl jobs · Python jobs

Spektrum has 109 open roles listed here.

Counted across 14 company job boards, updated as roles open and close.

Preparing for this interview

Interviews for penetration roles keep coming back to Penetration testing, Python, LLMs, Java. Practise those questions before you sit with Spektrum.

Questions you are likely to be asked

  1. Why do you want to join Spektrum?
  2. What is your experience with Penetration testing? Tell me one thing you learned the hard way.
  3. Tell me about a serious bug you caught before release. How did you find it?
  4. What would you automate first, and what would you keep manual?
  5. How do you write a bug report that a developer can act on straight away?

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Spektrum supports apex purchasers (NATO, UN, EU, and National Government and Defence) and their Tier 1 supplier ecosystem with a wide range of specialist services. We provide our clients with professional services, specialised aerospace and defence sales, delivery, and operational subject matter expertise. We are looking for personnel to join our team and support key client projects.


Who we are supporting 

The NATO Communication and Information Agency (NCIA) is responsible for providing secure and effective communications and information technology (IT) services to NATO's member countries and its partners. The agency was established in 2012 and is headquartered in Brussels, Belgium.

The NCIA provides a wide range of services, including:

Overall, the NCIA plays a critical role in ensuring the security and effectiveness of NATO's communication and information technology capabilities.

The program

Assistance and Advisory Service (AAS)

The NATO Communications and Information Agency (NCI Agency) is NATO’s principal C3 capability deliverer and CIS service provider. It provides, maintains and defends the NATO enterprise-wide information technology infrastructure to enable Allies to consult together under Article IV, and, when required, stand together in the face of attack under Article V.

To provide these critical services, in the modern evolving dynamic environment the NCI Agency needs to build and maintain high performance-engaged workforce. The NCI Agency workforce strategically consists of three major categorise's: NATO International Civilians (NIC)'s, Military (Mil), and Interim Workforce Consultants (IWC)'s. The IWCs are a critical part of the overall NCI Agency workforce and make up approximately 15 percent of the total workforce.


Senior Penetration Tester

Role ID – C004907

Role Background

NCIA requires an experienced Penetration Tester to support cybersecurity testing, security assessments and NATO military exercises.

The role focuses on web application and infrastructure penetration testing, network security, vulnerability assessment and security consultancy. The contractor will also support Red/Blue Team activities and advise NATO stakeholders on security risks and remediation.

Role Duties and Responsibilities

Essential Skills

Experience

More than 3 years of extensive knowledge and experience in the technical areas; including penetration testing, vulnerability assessment, network security and related technologies.

The role also requires the ability to present findings to senior stakeholders and participate in NATO military exercises.

Working Location

Mons, Belgium

Working Policy

Full-time on-site in Mons.

 

Travel

 

Security Clearance

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Listed on greenhouse · posted 2026-10-08. ApplySarthi collects openings and links to application pages; the role is advertised by Spektrum, not by us.