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Senior Full-Stack Kotlin Engineer (Kineto)

1 hour, 51 minutes ago
Germany
Senior
Backend Engineer
Software Development
Android Flux gRPC Helm iOS Java Kotlin LLM Microservices Neon Node.js PostgreSQL React Spring Boot Swift Terraform TypeScript WebSockets
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JetBrains

JetBrains

JetBrains provides cutting-edge development tools like IntelliJ IDEA and Kotlin, automating tasks to boost productivity and foster innovation.

Internet Software & Services
1K-5K
Founded 2000
View All Jobs 26

Description

  • Design, implement, and evolve Kotlin and Spring Boot microservices that support generation, hosting, deployments, billing, and analytics.
  • Build resilient distributed systems on GKE, Knative, Flux, Helm, Terraform, and Terragrunt.
  • Architect and optimize multi-tenant Postgres and Neon data models, including tenant isolation, branching strategies, and safe schema migrations.
  • Implement high-performance APIs and real-time features using coroutines, structured concurrency, gRPC, HTTP, SSE, WebSockets, and message queues.
  • Build user-facing features for the app builder, including dashboards, analytics, editors, session views, run logs, and billing screens.
  • Work across React and TypeScript frontends while integrating backend APIs, remote configuration, analytics, and billing systems.
  • Contribute to the component library, UX flows, and developer tooling used to create and manage apps.
  • Drive performance tuning across the platform, including GC settings, container resources, distributed locks, and caching strategies.
  • Solve operational challenges such as scale to zero, cold starts, autoscaling, build farm performance, and queue backpressure.
  • Build and improve the LLM-based generation pipeline and collaborate on prompt design, safety layers, and deterministic generation.

Requirements

  • 5+ years of experience building commercial software in Kotlin, Java, Swift, or similar languages.
  • Strong understanding of algorithms, data structures, concurrency, and design principles for large-scale maintainable codebases.
  • Proven expertise or strong interest in AI-assisted development, prompt engineering, or ML-based code generation workflows.
  • Experience with cross-functional collaboration across time zones and technical domains.
  • Ability to communicate complex ideas clearly.
  • Bonus: experience with cross-platform frameworks and iOS and Android app development.
  • Bonus: familiarity with Compose Multiplatform, KMP libraries or frameworks, or IDE/plugin development.

Interested in this position?

Apply directly on the company website

Apply Now

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