Senior Backend Engineer (Java / Kotlin / AWS)

Royal Dirkzwager

full-time Computer Occupations
Apply Now
Location
Torun, Kuyavian-Pomeranian Voivodeship, Poland
Posted
June 30, 2026

Job Description

Job Description

The Role

You'll be a core member of a small, high-ownership engineering team building and evolving the distributed microservices backend that powers Routescanner. You'll work across a complex domain – route optimization, schedule ingestion, geo-routing, and carrier data – at real scale, on AWS.

This is not a role for someone who waits for specs to land in their inbox. You'll take full ownership of services from design through production, make architectural decisions, and proactively identify and fix problems before they become incidents. 

What You'll Work On

  • Design, build, and maintain JVM-based microservices (Java / Kotlin) running on AWS ECS, App Runner, and Lambda

  • Work with a rich data layer: PostgreSQL, DynamoDB, RedShift, Redis, and S3

  • Build and consume event-driven integrations via RabbitMQ and SNS

  • Collaborate on API design across REST (A...