JR Netherlands

Senior Java/Kotlin Software Engineer (Freelance) – JR Netherlands – Assen

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2

Posted:

18.06.2025

Expiry Date:

02.08.2025

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Job Description:

Freelance Senior Software Engineer (Java/Kotlin)

Location: Netherlands (Hybrid)

Type: Freelance

Start: ASAP

For our client, a market leader in e-Commerce, we are urgently looking for hands-on Senior Backend Engineers to deliver scalable, high-performance solutions in a cloud-native microservices environment. This is a plug & play freelance role requiring deep technical expertise and autonomy from day one.

Key Responsibilities:

  • Build and optimize scalable, resilient microservices in a distributed system
  • Write clean, testable, and production-ready Java/Kotlin code
  • Collaborate across engineering, product, and design to refine technical solutions
  • Embrace a DevOps culture: own what you build, monitor and improve services
  • Languages: Java, Kotlin
  • Testing: JUnit, TestContainers, MockK

Ideal Background:

  • 5+ years backend engineering experience in complex systems
  • Strong knowledge of system design, clean code, and testing best practices
  • Prior work in financial services, fintech, or high-availability platforms is highly valued

Ready to jump in? We look forward to your CV and motivation and will get in touch shortly!

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