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DKDKB Code Factory

Senior Backend Developer(m/w/x)

Berlin
Full-timeOn-siteSenior

Developing and enhancing backend components for finance product chargeback processes. Kotlin and Spring Boot experience with Domain Driven Design knowledge required. Collaborative work in a cross-functional product team.

Requirements

  • Proven experience in backend development using Kotlin and Spring Boot framework
  • Strong understanding of Domain Driven Design, Ports & Adapters (Hexagonal Architecture), and API design/validation
  • Experience with relational databases such as Postgres
  • Experience with container orchestration tools including Docker, Kubernetes and Helm
  • Prioritization of code quality and engineering excellence
  • Excellent communication and collaboration skills
  • Ability to take ownership and maintain attention to detail
  • Startup and/or Finance background
  • Passion for work and enjoyment of free time

Tasks

  • Own and enhance backend components of the chargeback process
  • Deliver functional, well-tested code following Clean Code principles
  • Implement Test Driven Development and Domain-Driven Design
  • Collaborate with frontend developers, product owners, QA, and UX designers
  • Align API specifications and implementations with stakeholders
  • Identify and reduce technical debt proactively
  • Implement user-driven improvements
  • Lead technical deep dives and knowledge sharing sessions
  • Mentor peers and contribute to cross-team problem solving

Work Experience

  • approx. 4 - 6 years

Education

  • Bachelor's degreeOR
  • Master's degree

Languages

  • EnglishBusiness Fluent

Tools & Technologies

  • Kotlin
  • Spring Boot
  • Postgres
  • Docker
  • Kubernetes
  • Helm
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