Software Engineer (Part-time, 24 hours/week)

Location: Apeldoorn (Hybrid/On-site, Netherlands)
Start date: 1 October 2025
Contract duration: Until 31 July 2026 (extension possible, up to 2 years)

The Role

We are establishing a new Technical Realization Team and are looking for an experienced Software Engineer. In this role, you will develop and manage integrations on our WSO2 integration platform, contribute to building a modern data platform, and coach internal colleagues on new tools, methods, and best practices.

This role is a mix of hands-on development and knowledge transfer, making it ideal for a professional who enjoys both building solutions and mentoring others.

Key Responsibilities

• Develop, test, and maintain integrations using WSO2 ESB/EI, API Manager, and Identity Server.

• Design and implement ETL/ELT processes and data flows (SQL, streaming, batch) for the data platform.

• Set up and maintain CI/CD pipelines for integrations and data components.

• Introduce and guide colleagues in the use of container environments (Docker, Kubernetes, OpenShift).

• Implement and coach best practices in Git version control (branching, pull requests, code reviews).

• Act as a technical mentor for colleagues, with a strong focus on knowledge transfer and training.

Minimum Requirements

Candidates must meet the following criteria (to be demonstrated in the CV):

• 5+ years of proven experience with integration platforms (preferably WSO2 ESB/EI and API Management).

• 3+ years of proven experience with APIs (REST/GraphQL, SOAP) and event-driven architecture (Kafka, RabbitMQ, or similar).

• 3+ years of proven experience with CI/CD pipelines (Jenkins, GitLab CI, or similar).

• Proven experience with container technologies (Docker, Kubernetes, Helm).

• Proven knowledge of Git version control and collaboration workflows (branching, merging, reviews).

Nice to Have

• Experience with data platforms (PostgreSQL, DataVault, Lakehouse).

• Experience with OpenShift.

• Strong background in coaching or training colleagues.

Other Information

• Freelancers (ZZP) may apply.

• A valid VOG (Certificate of Conduct) is required.

• Travel expenses may be reimbursed.

• Hourly rate can be indexed during the contract.

• Possibility of permanent employment after the contract.

Selection Process

• Candidates will be scored on experience and hourly rate.

• Top 3 candidates will be invited for an online interview on 26 September 2025 (09:00–12:00).

• Interviews will focus on profile alignment and cultural fit.

👉 Interested?
Apply before 20 September 2025, 12:00 PM with your CV and hourly rate.