> Markdown version of [/jobs/ext/3042322-pentester-ethical-hacker](https://www.wearedevelopers.com/jobs/ext/3042322-pentester-ethical-hacker). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Pentester/Ethical Hacker - **Company:** DongIT - **Location:** Leiden, Netherlands - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Software System Penetration Testing, Microsoft Azure, Mobile Application Software, Phishing, Red Team (Cyber Security), Web Applications, Google Cloud, Cloud Platform System - **Published:** September 24, 2026 - **Apply:** https://www.werk.nl/nl/vacatures/71473543 ## About the Role At DongIT, we believe good security starts with curiosity and creativity. We are looking for an Ethical Hacker who enjoys breaking things for the right reasons and helping organizations improve their security. If you thrive on finding vulnerabilities, sharing knowledge, and working together in a skilled and friendly team, this role may be the right fit for you. ## Description As an Ethical Hacker at DongIT, you will be directly involved in testing and improving the security of web applications, APIs, mobile apps, networks, and even IoT systems. Our projects vary: from black-box pentests to red team exercises, phishing simulations, and social engineering assessments. Your primary goal is to identify weaknesses, demonstrate their actual impact, and produce reports that clients can understand and utilize to enhance security. What You'll Do - Perform penetration tests on web applications, APIs, mobile apps, networks (internal and external), and IoT devices. - Review cloud environments (AWS, Azure, GCP) to find misconfigurations and security risks. - Examine source codes to detect vulnerabilities. - Detect and exploit vulnerabilities to show risk and impact. - Write clear, actionable reports that help clients improve their security. - Discuss findings with clients and support remediation. - Research new vulnerabilities and attack techniques to stay sharp. - Contribute to red team, phishing, or social engineering projects. - Collaborate with the team to deliver high-quality results and share knowledge. - Keep improving your skills through projects, training, and certifications. Note: Don't worry if you don't tick every box. We value curiosity, a hacker mindset, and ... ## Related Videos - [Passkeys: Truly Phishing-Resistant? Implementation and Pitfalls](https://www.wearedevelopers.com/videos/100156-passkeys-truly-phishing-resistant-implementation-and-pitfalls) - [The Cloud is Calling: Answer with In-Demand Skills](https://www.wearedevelopers.com/videos/945-the-cloud-is-calling-answer-with-in-demand-skills) - [Developer Tools for Microsoft Azure](https://www.wearedevelopers.com/videos/450-developer-tools-for-microsoft-azure) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Skynet wants your Passwords! The Role of AI in Automating Social Engineering](https://www.wearedevelopers.com/videos/770-skynet-wants-your-passwords-the-role-of-ai-in-automating-social-engineering) - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) ## Related Articles - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)