224.316 vacatures

1 okt 2026

Freelance Backend Engineer (Scala)

Branche Zie onder
Dienstverband Zie onder
Uren Zie onder
Locatie Amsterdam
Opleidingsniveau MBO
Contactpersoon Ingrid Leenders

Informatie

What are you going to do? 

  • Leverage Scala for maintaining high-volume backend microservices and design backend architecture for an energy flexibility and trading platform;
  • Undertake greenfield development of new microservices using Kotlin and Spring Boot to establish a future-proof ecosystem;
  • Ensure timely delivery of implementations by communicating effectively with stakeholders and working independently;
  • Demonstrate code excellence through clean, efficient, and well-documented code, participating in the full SDLC including testing and QA;
  • For this specific project, we require prior experience with Scala because we have a tight deadline to finish it by the end of 2026, and it involves working with our legacy systems; 
  • Communicate with the stakeholders and independently ensure the implementation is delivered on time. 

Omschrijving

What are you going to do? 

  • Leverage Scala for maintaining high-volume backend microservices and design backend architecture for an energy flexibility and trading platform;
  • Undertake greenfield development of new microservices using Kotlin and Spring Boot to establish a future-proof ecosystem;
  • Ensure timely delivery of implementations by communicating effectively with stakeholders and working independently;
  • Demonstrate code excellence through clean, efficient, and well-documented code, participating in the full SDLC including testing and QA;
  • For this specific project, we require prior experience with Scala because we have a tight deadline to finish it by the end of 2026, and it involves working with our legacy systems; 
  • Communicate with the stakeholders and independently ensure the implementation is delivered on time. 

Functie eisen

What do you bring?

  • Senior-level backend software engineering experience; 
  • Expertise in JVM languages, specifically Scala;
  • Strong background or deep interest in functional programming and API design; 
  • Proactive "learning by doing" mindset; 
  • Passion for environmental sustainability and thrives in a diverse work environment.
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