• English
  • Dutch
  • German
IT Application Security Engineer


Are you passionate about securing applications, uncovering vulnerabilities, and ensuring the highest level of data protection? Do you thrive in fast-paced, dynamic environments where your skills and expertise can make a tangible impact? If so, we have an exciting opportunity for you to become a part of our team!


  • Collaborate with cross-functional teams to develop and implement robust security measures across applications and infrastructure.
  • Conduct both static and dynamic testing, utilizing tools such as ZAP, Burp, and SAST tools to identify and address vulnerabilities in code.
  • Perform code security reviews in Java, C#, Python, and/or Go, ensuring the highest standards of security are maintained.
  • Drive application penetration testing efforts, utilizing Burp and ZAP, to uncover potential vulnerabilities.
  • Champion DevOps practices by establishing build, test, and data pipelines in cloud environments.
  • Utilize your expertise in VMWare and Docker for OS and network security.
  • Contribute to the deployment and security of applications in Kubernetes environments.
  • Implement Infrastructure as Code principles using tools like Terraform and Helm Charts.
  • Leverage your Azure DevOps knowledge to streamline pipeline deployments (advantageous).
  • Engage in high-intensity short sprints, adapting tooling and strategies to suit specific projects and technology stacks.
  • Engage in research and proof of concept efforts to explore and implement new security technologies.
  • Take end-to-end ownership of hosting application security, including virtual machines, containers, networks, and VPNs.


  • Junior Level (1 year experience):

    • Bachelor's degree in Computer Science or related field.
    • Solid foundation in application security concepts.
    • Familiarity with code review practices and vulnerability identification.
    • Basic experience with tools such as ZAP, Burp, or similar.
    • Exposure to cloud environments is a plus.

  • Senior Level (4-5 years of experience):

    • Proven experience in code security review across Java, C#, Python, or Go.
    • Extensive hands-on experience with application penetration testing using tools like ZAP and Burp.
    • DevOps expertise, including setting up build, test, and data pipelines in cloud environments.
    • Proficiency in VMWare and Docker for OS and network security.
    • In-depth experience with Kubernetes deployment and management.
    • Familiarity with Infrastructure as Code principles using Terraform and Helm Charts.
    • Knowledge of Azure DevOps for pipeline deployment is advantageous.
    • Strong leadership skills; ability to take ownership and guide the team.
    • Passion for security research and open-source contributions.

      Project details
    • Location: Amsterdam
    • Duration: 12 Months (Contract to perm)
      Type: Freelance/Payroll

Michael Bailey International is acting as an Employment Business in relation to this vacancy.

IT Application Security Engineer