Clera home
·Dashboard

Jobs at NVISO Security (Now Hiring) — 4 open

NVISO Security logoNVISO Security

Senior Penetration Tester

Brussels, Brussels-Capital, Belgium · Hybrid

Mid level

<p><strong>Who are we?</strong></p> <p>It all starts with the mission: NVISO is here to protect European society from potentially devastating cyber attacks! This means we offer cyber security services to private and gove…

Skills: Penetration Testing, Offensive Security, Social Engineering, Exploit Development, Process Exploitation

NVISO Security logoNVISO Security

IT Administrator

Athens, Attica, Greece · Hybrid

Mid level

<p><strong>Who are we?</strong></p> <p>It all starts with the mission: NVISO is here to protect European society from potentially devastating cyber-attacks! This means we offer cyber security services to private and gove…

Skills: Windows Administration, Linux Administration, Office 365 Administration, MS Intune, Azure

NVISO Security logoNVISO Security

Chief Information Security Officer

Brussels, Brussels-Capital, Belgium · Hybrid

Senior

<p>NVISO is a pure-play European cyber-security consulting firm: our team of security professionals covers areas such as Security Governance, Risk &amp; Compliance, Security Awareness, Cyber Architecture, Penetration Tes…

Skills: Security Operations, ISMS, GDPR, IT Enterprise Architecture, Security Governance

NVISO Security logoNVISO Security

Werkstudent (m/w/d) Security Operations Engineering

Frankfurt, Hesse, Germany · Hybrid

Entry level

<p><strong>Who are we?</strong></p> <p>It all starts with the mission: NVISO is here to protect European society from potentially devastating cyber attacks! This means we offer cyber security services to private and gove…

Skills: Log Onboarding, Detection Engineering, SIEM Technologies, Incident Response, Azure Sentinel

NVISO Security logo

Senior Penetration Tester

NVISO Security

Brussels, Brussels-Capital, Belgium • Hybrid

Apply
Mid level

Tired of cold applications?

Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.

  • Full-time
  • bachelor degree, postgraduate degree
  • Training budget of 10,000€ and 10 days every two years, Company car, Belgian fuel card, Access to deep technical security certifications, Regular team-building and annual off-site events, Personal career coach
  • Posted 2d ago
  • ~40 hrs/week

Responsibilities

Emulate malicious actors to proactively test clients' detection and response capabilities while designing security solutions to protect confidential data. Coordinate penetration testing projects end-to-end and provide mentorship and professional development support to junior testers.

Requirements

Requires citizenship of a NATO member state, a degree in a relevant field, and at least 2 years of professional experience in security. Candidates must possess strong ICT knowledge, excellent English communication skills, and the ability to handle sensitive information.

Full job description

Who are we?


It all starts with the mission: NVISO is here to protect European society from potentially devastating cyber attacks! This means we offer cyber security services to private and governmental organizations to help them better prepare for, prevent, detect and respond to cyber security incidents.


All of this is built on four fundamental values that define who we are: We are Proud, We Break Barriers, We Care and No BS!


Tasks


As a Senior Penetration Tester based in Brussels, Belgium, you will:



  • Fuse technical and non-technical skills to emulate actions that could be taken by malicious users or systems.

  • Understand the psychology, systems, and tactics used by threat actors to proactively test clients’ ability to detect, respond to, and adapt to attacks.

  • Help design, develop, and recommend security solutions to protect clients’ proprietary and confidential data and systems.

  • Support compliance objectives by providing guidance on the logical protection of information system assets.

  • Advise clients on security implications when making changes to their network, system, and application architecture.

  • Prepare reports on the effectiveness of information security controls and recommend the adoption of new policies and procedures.

  • Leverage a broad range of offensive security techniques, including social engineering, exploit development, and process exploitation.

  • As a senior profile, coordinate penetration testing projects end-to-end and support junior testers in their day-to-day delivery and professional development.


Requirements



  • You hold citizenship in one of the 32 NATO member states.

  • You have a Bachelor’s or Master’s degree or equivalent work experience in the field, and 2+ years of professional experience in the field

  • Good knowledge of ICT systems, networks and security technologies

  • Knowledge of operating system security concepts

  • Able to work independently and to deliver results

  • Positive, team and mission-oriented attitude

  • Strong interpersonal and verbal/written communications skills that enable the ability to work effectively in a collaborative team environment

  • Excellent English communication skills, both verbal and written

  • Candidates must recognize and deal appropriately with confidential and sensitive information


Benefits


At NVISO, we care. We are committed to offering you a highly competitive remuneration package including financial and non-financial components:



  • A training budget of 10.000€ and 10 days every two years

  • Company car + Belgian fuel card

  • Working and learning from the best people in the European cyber security industry. We have multiple SANS Instructors working at NVISO, our staff has presented at popular hacking conferences (BlackHat, BruCON, OWASP, etc) and all of our technical staff can acquire deep technical security certifications (GSE, GXPN, GREM, GCFA, OSCP, etc)

  • An entrepreneurial and agile company, where you will be stimulated and supported in driving new initiatives (either through internal innovation or by improving our service offering), without losing sight of having fun!

  • Regular team-building and fun events with legendary off-site events once a year. The location of the next team building is one of the most closely guarded secrets at NVISO… We can however disclose that we’ve visited Lisbon, Dubai and Malta over the past few years

  • Our commitment to coach and counsel you and help you grow; each employee receives a personal coach within the team, whose role is to ensure your well-being and helps you grow in your career!

  • Flexible working hours and home office possibilities

  • Flex Reward Plan

  • 32 holidays


IF YOU'RE INTERESTED, PLEASE SEND US YOUR APPLICATION!


WE'RE LOOKING FORWARD TO MEETING YOU!


Disclaimer on the Use of AI Tools in the Application Process


Please be aware that the creation and submission of application documents (e.g. CV, cover letter, case studies, etc.) using AI-powered tools is only permitted to a limited extent.


Our expectations:



  • Application documents must authentically reflect your own qualifications, personality, and motivation.

  • The use of AI for supportive purposes (e.g. spell-checking, improving wording) is acceptable.

  • Fully generated application documents created by AI without personal adaptation or review are not permitted.

  • Under no circumstances may NVISO information, data, or documents be uploaded to or processed by external AI tools.


We reserve the right to exclude applications from the selection and interview process that are clearly created primarily or exclusively by AI and show no recognizable personal input.


The purpose of this policy is to ensure a fair and transparent recruitment process and to obtain an authentic impression of our applicants.

Related keywords

Penetration TestingCyber SecurityOffensive SecuritySocial EngineeringExploit DevelopmentSANSBlackHatBruCONOWASPGSEGXPNGREMGCFAOSCPNATOICT

About NVISO Security

LinkedInVisit site
Industry
Computer and Network Security
Company size
201-500 employees
Founded
2013
Headquarters
Brussels, Brussels Region
LinkedIn followers
16,163

NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management to incident response and security testing. This unique "skill blend"​ allows them to analyse and respond to complex client challenges and help those companies prevent, detect and respond to security challenges with a positive business outcome. Built on values of Pride, Caring for our people, Breaking Barriers, and fostering a no-BS approach, our mission is to be an innovative, trusted and respected security partner for our clients.

Offices: Rue Guimard 8, Brussels, Brussels Region 1040, BE · Holzgraben 5, Frankfurt am Main, Hessen 60313, DE · Machtlfinger Str. 21, Munich, Bavaria 81379, DE · Feidiou 9, Athens, GR · Gumpendorfer Straße, Vienna, 1060, AT

Penetration TestingDigital Forensics & Incident ResponseMalware AnalysisGovernanceRisk & ComplianceResearch & DevelopmentSecurity MonitoringThreat HuntingAdversary EmulationICS Security
View all jobs at NVISO Security

About NVISO Security

LinkedInVisit site
Industry
Computer and Network Security
Company size
201-500 employees
Founded
2013
Headquarters
Brussels, Brussels Region
LinkedIn followers
16,163

NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management to incident response and security testing. This unique "skill blend"​ allows them to analyse and respond to complex client challenges and help those companies prevent, detect and respond to security challenges with a positive business outcome. Built on values of Pride, Caring for our people, Breaking Barriers, and fostering a no-BS approach, our mission is to be an innovative, trusted and respected security partner for our clients.

Offices: Rue Guimard 8, Brussels, Brussels Region 1040, BE · Holzgraben 5, Frankfurt am Main, Hessen 60313, DE · Machtlfinger Str. 21, Munich, Bavaria 81379, DE · Feidiou 9, Athens, GR · Gumpendorfer Straße, Vienna, 1060, AT

Penetration TestingDigital Forensics & Incident ResponseMalware AnalysisGovernanceRisk & ComplianceResearch & DevelopmentSecurity MonitoringThreat HuntingAdversary EmulationICS Security
View all jobs at NVISO Security

Similar companies hiring

Palo Alto Networks (270)CrowdStrike (123)Fortinet (116)Zscaler (89)Cloudflare (68)Exclusive Networks (57)TrendAI (56)Arctic Wolf (53)SentinelOne (46)Nord Security Partners (44)Infoblox (42)NetSage (40)
Clera home

Your AI-talent agent. Connecting talents with dream jobs.

Earn $5,000

Tools

  • Salary Calculator
  • Resume Review
  • Startup Map

Explore

  • Jobs
  • Discover Jobs
  • Companies
  • Acquihire
  • Referral

Company

  • Manifesto
  • Engineering
  • We are hiring!
  • FAQs
  • Blog
  • Press

Tools

  • Salary Calculator
  • Resume Review
  • Startup Map

Explore

  • Jobs
  • Discover Jobs
  • Companies
  • Acquihire
  • Referral

Company

  • Manifesto
  • Engineering
  • We are hiring!
  • FAQs
  • Blog
  • Press

© 2026 Clera Labs, Inc.

PrivacyTermsBug Bounty