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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Security Consultant - **Company:** Wlg - **Location:** Den Haag, Netherlands - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Data Analysis, Software System Penetration Testing, User Authentication, Unix, Configuration Management, Perl (Programming Language), Python (Programming Language), Network Security, Network Administration, Ruby, Web Applications, Scripting, Software Security, Malware, Information Technology, Blue Team (Cyber Security) - **Published:** August 15, 2026 - **Apply:** https://www.careerjet.nl/job/nle59dddc1ca55882607973650a796fff5/eaa ## About the Role * More than three years of hands-on depth across web application and IT infrastructure penetration testing, and network security architecture design * Assessing vulnerabilities in operating systems, software, protocols and networks, and evaluating security products and technologies * System and network administration on both UNIX and Windows * Recognised testing methodologies and the tooling that goes with them * Scripting in at least one of Perl, Python, Ruby or shell * Real technical knowledge of authentication and security protocols, cryptography, application security, malware infection techniques and the protections against them * The ability to evaluate risk and write a mitigation plan, not just a finding * Clear, structured technical writing - executive summary, technical detail and remediation, for audiences that read very differently ## Description WLG and our selected partners use cookies and similar technologies (together "cookies") that are necessary to present this website, and to ensure you get the best experience of it. 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You can provide or withdraw your consent to the different types of cookies using the toggles below. You can change or withdraw your consent at any time, by clicking the link "Manage Cookies", which is always available at the bottom of the site. To learn more about what the different types of cookies do, how your data is used when they are set etc, see our . Strictly necessary These cookies are necessary to make the site work properly, and are always set when you visit the site. Vendors Teamtailor common--cookies--preferences#handleCategoryToggle"> Analytics These cookies collect information to help us understand how the site is being used. Vendors Teamtailor common--cookies--preferences#handleCategoryToggle"> Marketing These cookies are used to make advertising messages more relevant to you. In some cases, they also deliver additional functions on the site. Vendors Youtube common--cookies--preferences#handleAccept">Accept these cookies common--cookies--preferences#handleDecline">Decline all non-necessary cookies common--header--menu#toggle" data-common--header--menu-target="button" > Career menu Employee Candidate Homepage common--dropdown#toggle"> Share page common--share#handleClick" data-provider="Facebook"> Facebook common--share#handleClick" data-provider="Twitter"> X common--share#handleClick" data-provider="LinkedIn"> LinkedIn Security · The Hague Security Consultant (Penetration Testing and Accreditation Support) for NATO with security clearance Break things on purpose, at scale, for a multinational defence organisation - red and blue team work during military exercises, on-site in The Hague. careersite--jobs--form-overlay#showFormOverlay" data-careersite--jobs--form-overlay-target="coverButton"> Apply for this job blocks--cover--scroll#handleScrollDown" title="Scroll to content"> You would spend the year finding what an adversary would find first. A multinational defence organisation is looking for a penetration tester to work inside its testing cell: leading or joining red and blue teams during military exercises, and testing the systems the rest of the year. On-site in The Hague, Netherlands, with around ten days of travel foreseen. What you will be doing * Leading, or forming part of, the red and blue teams during large multinational exercises * Web, infrastructure and application-level penetration testing * Security design reviews, checking compliance against organisational policy and directives * Security consultancy and advice to projects, plans and other parts of the organisation * Working with configuration control boards, accreditation boards and the national accreditation authorities that sign systems off * Briefing at both technical and executive level - including the most senior officers - on findings and remediation ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Enhancing Workload Security in Kubernetes](https://www.wearedevelopers.com/videos/356-enhancing-workload-security-in-kubernetes) - [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [Coffee with Developers - Robby Russell](https://www.wearedevelopers.com/videos/917-coffee-with-developers-robby-russell) - [Full Spectrum File Uploads](https://www.wearedevelopers.com/videos/870-full-spectrum-file-uploads) ## Related Articles - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents)