Integration & Support Engineer (Medior)

About Cleverbase

We are Cleverbase, a Qualified Trust Service Provider (QTSP) fully compliant with the strictest standards set by the Dutch government. Our mission is to eliminate paperwork and make online transactions as trustworthy as possible.

Every day, we issue over 500 digital wallets through a high-quality digital onboarding process, officially recognized by the EU with the highest level of assurance. With this wallet, users can securely log in online, sign agreements and contracts digitally, and reliably verify their identity.

Thanks to the new eIDAS regulation, our company is growing rapidly, and we are looking for reinforcements! At Cleverbase, you will work alongside young, smart, and supportive colleagues who will help you thrive in our fast-growing company. Together, we are building a digital society where everyone is in control of their personal data.

About the role

We’re looking for a mid-level Integration & Support Engineer who helps external parties successfully connect to our services. You’ll be the technical point of contact for integration questions, onboarding and incidents, and you’ll translate those into concrete improvements in our systems. You’re a strong communicator, externally minded, and you’re comfortable implementing changes yourself in our codebase, even when the technology is new to you.

This is a role where your impact is big. With new investors on board (Lenos) we have the financial backing to grow in an emerging market. We’re still a small team, which means you’ll be at the basis of making the use of our services more mature and professional, with direct contact with (potential) customers.

What you’ll do

  • Guide external parties/partners through onboarding and integration with our services.
  • Troubleshoot integration issues (API behavior, configuration, logs) and drive clear next steps.
  • Pick up change requests end-to-end: analysis, alignment, implementation, testing and release.
  • Work with the team on structural improvements: documentation, runbooks, integration checklists and overall reliability.
  • Communicate proactively with partners: manage expectations, share progress, and surface dependencies/constraints early.

What we’re looking for (experience & skills)

We’re looking for someone who enjoys working with external stakeholders and can also go deep technically. You bring:

  • A proven track record of building things yourself: you’re a hands-on engineer who takes something from idea to working solution.
  • You’re not afraid to dive into unfamiliar technology: you learn what you need to get the job done. Our stack includes things like OAuth 2.0 / OpenID Connect and the JVM (Java/Kotlin/Scala), but prior experience with those specific technologies is not a hard requirement.
  • Experience supporting external teams/partners with technical onboarding/integration (APIs, configuration, debugging).
  • Clear, structured communication, especially during incidents or when requirements are unclear.
  • Good alignment with both commercial and technical colleagues: you switch easily between those worlds.
  • You join us at our office in The Hague (with the best view of the city) at least one day a week.
  • A collaborative mindset, ownership, and a strong bias for finishing what you start.

Nice to have

  • Experience with OAuth 2.0 / OpenID Connect or an Identity Provider (e.g., Auth0, Keycloak, Azure AD, Cognito or similar).
  • Experience in a JVM environment (Java/Kotlin/Scala).
  • Experience with JWT, key rotation, security configuration and writing integration documentation.
  • Experience with CI/CD and release processes.

What we offer

  • A competitive salary between €3,500 and €5,000, corresponding with your knowledge and experience.
  • A role with high impact on partner success and product quality, in a small team with fresh financial backing and an emerging market to grow in.
  • A varied mix of support, engineering and continuous improvement work.
  • Working closely with our very experienced Scala and wallet team: a small team, so lines are short and direct.
  • Agile working: quick iterations, with a good eye for requirements and compliance.
  • A team where collaboration, ownership and quality matter.

Last but not least

We want you to be yourself, and everyone is welcome. Our team is diverse, representing multiple nationalities, genders, ages, sexual orientations, religions, cultures, and personality types. This diversity is what makes our team so special!

Are you ready for the Challenge?

Send your CV and cover letter to our recruitment team. If you have any questions about this vacancy, feel free to contact Ralf van Oosterhout.

Even if you do not meet all requirements but still believe that you can bring value to our ambitious team, we would love to hear from you. Reach out to the recruitment team and let's explore how your unique skills can contribute to our mission.

Screening and pre-employment

As part of the application process, we conduct a screening. Successful candidates will be required to obtain a Certificate of Conduct (VOG) before starting employment.

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