Staff Software Developer (Kotlin Libraries)

JetBrains is a company that develops foundational libraries for Kotlin core primitives used by hundreds of thousands of developers. The role involves participating in the design committee shaping the Kotlin API and creating standard Kotlin tools, specifications, and language features.

• JVM development experience including implementation details of the Java standard library
• Strong domain understanding relevant to your work
• Ability to write design documents for complex systems with reasoned trade-offs and technical decisions
• Experience in performance engineering or API design

Nice to have:

• Reading and interpreting the Unicode standard
• Understanding transformations of strings to bytes in multiple languages
• Analyzing timezone changes and their implications for Kotlin timezone API
• Optimizing interface hierarchy for JIT friendliness
• Persistent documentation review and iteration

• Create and maintain foundational libraries for Kotlin core primitives used by hundreds of thousands of developers
• Become an expert in specific domains of computer science and software engineering
• Participate in the design committee shaping the Kotlin API
• Contribute to creating standard Kotlin tools, specifications, and language features