Sr Java (Freelancer) - Webflux

Amsterdam  ‐ Onsite
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Java (Programming Language) Continuous Integration Test-Driven Development (TDD) Backend Innovation Application Programming Interfaces (APIs) Microsoft Azure Software Quality E-Commerce Elasticsearch Github Recruitment PostgreSQL Redis Service Development Studio Spring-boot Kubernetes Microservices


Sr Java Engineer (Freelancer) - Webflux

Please note that the candidate should reside in the Netherlands.
  • Location: Amsterdam Area (Remote-flexible)
  • Contract: 6 Months (with potential for extensions)
  • Start Date: June 2024
  • Rate: Up to €90 per hour

Role Overview:

We are seeking an experienced freelance Senior Java Backend Engineer for an exciting project with one of our top clients in the e-commerce and technology sector. This role involves developing and maintaining microservices for a globally used online logistics application targeted at SME customers.

Key Responsibilities:

  • Design and develop high-performance, reliable APIs using Java and WebFlux.
  • Collaborate with cross-functional teams both remotely and in-office (Amsterdam-area HQ) to drive innovation.
  • Manage the end-to-end development process, from gathering requirements to deploying to production using Kubernetes in Azure and GitHub Actions.
  • Utilize a robust technology stack, including Spring Boot, PostgreSQL, Elasticsearch, Event Hubs, and Redis.
  • Implement CI/CD practices and ensure high software quality through test-driven development.


  • Extensive experience with Java and WebFlux, with a solid background in backend service development.
  • Proven ability to design scalable and maintainable systems.
  • Proficiency in modern CI/CD practices and test-driven development.
  • Strong problem-solving skills and a collaborative mindset.
  • Ability to navigate and contribute to cross-team projects and discussions.

Why Join Us:

  • Play a key role in shaping the future of global supply chains through innovative digital solutions.
  • Enjoy a flexible remote work environment with occasional office meetings.
  • Engage in a culture of teamwork, continuous learning, and shared knowledge.

If you are a forward-thinking engineer with a passion for crafting reliable and efficient software, we invite you to join our dynamic team and contribute to the next generation of digital offerings in a complex and evolving industry. Apply now!

Are you ready to impact the lives of a million people through your developments?

Share your CV with me: or call me at .

Please understand that, due to the high volume of applications, we will only be able to consider and get in touch with candidates currently residing in The Netherlands.

Thank you!


Darwin Recruitment is acting as an Employment Business in relation to this vacancy.
Start date
6 months
Darwin Recruitment
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