Kotlin/Java Developer

At YND, while we originated in Berlin, our vibrant hub is now in Warsaw, where we've firmly planted our roots. Operating remotely, we deliver innovative solutions to clients worldwide. As a software consultancy, we're dedicated to blending creativity and engineering excellence to make a real impact, approaching every project with authenticity and purpose.

• 2+ years of professional experience with recent versions of Kotlin or Java
• Experience with or willingness to use Kotlin daily
• Good knowledge of Spring Boot
• Ability to write code that is correct, scalable, reliable, and performant
• Good knowledge of automated testing and writing testable code
• Critical thinking about own and others’ solutions
• Experience working in a Scrum/Agile environment
• Open and willing to learn from mistakes and feedback
• Proactive in suggesting, researching, and finding solutions
• Creativity and attention to detail
• Good command of English (written and spoken)

Nice to have:

• Experience or interest in developing AI-powered applications
• Experience or willingness to use AI tooling such as Claude Code
• Experience with NoSQL databases like MongoDB, Elasticsearch, Redis
• Experience with message brokers like Kafka, Amazon SQS
• Interest in cloud infrastructure or DevOps topics including AWS, GCP, Kubernetes, ArgoCD, Terraform

• Develop back-end services primarily using Kotlin
• Collaborate within a cross-functional engineering team
• Work under supervision of a senior team member who oversees and provides necessary training