Joom

Senior Backend Developer (Kotlin)

Joom
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1 month ago
Berlin, NH, USASenior

Responsibilities

  • Build and maintain a fast, reliable backend.
  • Solve scaling challenges and own platform architecture.
  • Make strong architectural decisions and own complex technical areas.
  • Contribute actively to product discussions and customer-facing product development.
  • Work across platform boundaries when it benefits the product.
  • Use AI tools and modern AI practices to improve development speed, quality, and decision-making.

Requirements

  • At least 5 years of backend engineering experience in production environments.
  • At least 3 years of recent experience with Kotlin or another JVM language.
  • Strong software architecture skills.
  • Expertise with relational database management systems, including PostgreSQL schema design and safe migrations.
  • A proven track record in customer-facing product development.
  • Experience with AI tools and modern AI practices.
  • Strong written and spoken English.
  • Preferred: experience as a tech lead or engineering team lead.
  • Preferred: AWS and Kubernetes experience.
  • Preferred: an observability mindset involving metrics and logging.
  • Preferred: experience with analytics workloads using Spark or Scala.
  • Preferred: full-stack experience, especially with React.

Benefits

  • Base salary and performance-based bonuses are offered, with no amount stated.
  • Office-first arrangement with flexible hours and the possibility of working remotely 52 days per year.
  • 28 days of paid annual leave.
  • Employee health insurance including dental care through Barmenia Mehr Zahn 100.
  • Daily meal allowance.
  • Licenses and access to a wide range of AI tools.
  • Collaboration with colleagues across Portugal, Brazil, Latvia, and China.
  • Opportunities for promotions, professional training, and English courses.
  • Annual team-building activities and knowledge-sharing workshops.
Joom

About Joom

201-500 employees
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