Untested systems are unsecured systems. As a security tester, you’ll be testing and validating ENCS members’ critical infrastructures and components to ensure our energy grid security is up to scratch.


As a principal penetration tester for ENCS, you’ll need to:

  • Perform and lead on-site penetration tests
  • Evaluate the security of components in the ENCS lab
  • Guide other ENCS testers during on-site and lab tests
  • Support testers in technical matters
  • Develop test plans and test cases from security requirements

Who we’re looking for:

To succeed in this role, you’ll need:

  • At least 5 years experience in penetration testing
  • Good knowledge for network security
  • Good knowledge of Windows and Linux security
  • Excellent reporting skills and the ability to summarise and present test findings
  • Experience in supervising project teams
  • Experience working with customers in a commercial setting
  • Fluency in English

Working at ENCS:

By joining ENCS you’ll be part of a small, international team of industry experts making a real difference to critical infrastructure cyber security developments in Europe.
From our office in The Hague you’ll work across Europe, giving you the chance to:


Work at the forefront of new security developments. Smart grids, electric vehicles, and industrial control systems offer unique security challenges. We are in a leading position to meet these by developing new solutions, finding new classes of vulnerabilities, and setting the standard for smart grid cyber security.

Protect society. Keeping the grid secure while it is increasingly automated is critical if our society is to transition to renewable energy. ENCS has a unique position to act on behalf of our members to make sure their systems are secure.

Develop your skills in an international environment. ENCS is a small company taking on big challenges. That creates a unique environment for ambitious talent to grow and take on new responsibilities.

Our offer:

  • An attractive salary (EUR 5.800 – EUR 7.000 gross a month based on experience)
  • Health insurance contribution
  • Pension contribution
  • Mobility budget
  • Laptop and mobile phone (also for private use)
  • A delicious lunch every day with the team


Interested in joining us?

We hope so. Please submit your CV in English and a supporting cover letter outlining why you want to work for ENCS to: hr@encs.eu

Please note that an employee screening is part of the interview process. All employees of ENCS need to obtain a Police Clearance Certificate/Certificate of Good Conduct (VOG).+A1:A13.